djvu | 9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552

Analysis

max time kernel
94s
max time network
124s
platform
windows10_x64
resource
win10-en-20210920
submitted
25-10-2021 21:40

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General

Target

9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
Size

775KB
MD5

f989cf6659dc7a4eb5d272d9442655d8
SHA1

eb3e78a91652d8dc39eb5c1a22eb157d2b955474
SHA256

9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552
SHA512

ea2745bfd20e9055a50c27f0b0982e9f9ee224d93a479838f209e931c764f395662dbe447434bc4e5a414b053a54b272cc5668da06ad51376cf4d6ac8519abf3

Score

10^/10

djvu vidar 517 discovery persistence ransomware spyware stealer suricata

Malware Config

Extracted

Family

vidar

Version

41.5

Botnet

517

https://mas.to/@xeroxxx

Attributes

profile_id
517

Extracted

Family

djvu

http://rlrz.org/lancer

Signatures

Detected Djvu ransomware 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2472-117-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/2472-116-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3844-118-0x0000000000950000-0x0000000000A6B000-memory.dmp	family_djvu
behavioral1/memory/2472-119-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4072-125-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/4072-130-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
suricata

Vidar Stealer 4 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/2560-138-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar
behavioral1/memory/2560-139-0x00000000004A18CD-mapping.dmp	family_vidar
behavioral1/memory/2560-143-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar
behavioral1/memory/604-142-0x0000000004C20000-0x0000000004CF6000-memory.dmp	family_vidar

Downloads MZ/PE file
Executes dropped EXE 8 IoCs

Processes:

build2.exebuild3.exebuild2.exebuild3.exemstsca.exemstsca.exemstsca.exemstsca.exe

pid process

604 build2.exe
1160 build3.exe
2560 build2.exe
3508 build3.exe
1640 mstsca.exe
2544 mstsca.exe
2160 mstsca.exe
1764 mstsca.exe
Loads dropped DLL 2 IoCs

Processes:

build2.exe

pid process

2560 build2.exe
2560 build2.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File Permissions Modification
T1222

Processes:

icacls.exe

pid process

1424 icacls.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

pid	process
604	build2.exe
1160	build3.exe
2560	build2.exe
3508	build3.exe
1640	mstsca.exe
2544	mstsca.exe
2160	mstsca.exe
1764	mstsca.exe

pid	process
2560	build2.exe
2560	build2.exe

pid	process
1424	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\49ffffc2-0d5f-4f2a-9870-971dfb608822\\9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe\" --AutoStart"	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

16 api.2ip.ua
17 api.2ip.ua
30 api.2ip.ua

flow	ioc
16	api.2ip.ua
17	api.2ip.ua
30	api.2ip.ua

Suspicious use of SetThreadContext 6 IoCs

Processes:

9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exebuild2.exebuild3.exemstsca.exemstsca.exe

description	pid	process	target process
PID 3844 set thread context of 2472	3844	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 644 set thread context of 4072	644	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 604 set thread context of 2560	604	build2.exe	build2.exe
PID 1160 set thread context of 3508	1160	build3.exe	build3.exe
PID 1640 set thread context of 2544	1640	mstsca.exe	mstsca.exe
PID 2160 set thread context of 1764	2160	mstsca.exe	mstsca.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

build2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	build2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	build2.exe

Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1092 schtasks.exe
3760 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2704 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2720 taskkill.exe

pid	process
1092	schtasks.exe
3760	schtasks.exe

pid	process
2704	timeout.exe

pid	process
2720	taskkill.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exebuild2.exe

pid	process
2472	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
2472	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
4072	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
4072	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
2560	build2.exe
2560	build2.exe
2560	build2.exe
2560	build2.exe
2560	build2.exe
2560	build2.exe
2560	build2.exe
2560	build2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2720 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2720	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exebuild2.exebuild3.exebuild3.exebuild2.execmd.exemstsca.exe

description	pid	process	target process
PID 3844 wrote to memory of 2472	3844	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 3844 wrote to memory of 2472	3844	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 3844 wrote to memory of 2472	3844	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 3844 wrote to memory of 2472	3844	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 3844 wrote to memory of 2472	3844	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 3844 wrote to memory of 2472	3844	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 3844 wrote to memory of 2472	3844	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 3844 wrote to memory of 2472	3844	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 3844 wrote to memory of 2472	3844	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 3844 wrote to memory of 2472	3844	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 2472 wrote to memory of 1424	2472	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	icacls.exe
PID 2472 wrote to memory of 1424	2472	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	icacls.exe
PID 2472 wrote to memory of 1424	2472	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	icacls.exe
PID 2472 wrote to memory of 644	2472	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 2472 wrote to memory of 644	2472	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 2472 wrote to memory of 644	2472	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 644 wrote to memory of 4072	644	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 644 wrote to memory of 4072	644	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 644 wrote to memory of 4072	644	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 644 wrote to memory of 4072	644	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 644 wrote to memory of 4072	644	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 644 wrote to memory of 4072	644	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 644 wrote to memory of 4072	644	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 644 wrote to memory of 4072	644	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 644 wrote to memory of 4072	644	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 644 wrote to memory of 4072	644	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
PID 4072 wrote to memory of 604	4072	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	build2.exe
PID 4072 wrote to memory of 604	4072	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	build2.exe
PID 4072 wrote to memory of 604	4072	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	build2.exe
PID 4072 wrote to memory of 1160	4072	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	build3.exe
PID 4072 wrote to memory of 1160	4072	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	build3.exe
PID 4072 wrote to memory of 1160	4072	9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe	build3.exe
PID 604 wrote to memory of 2560	604	build2.exe	build2.exe
PID 604 wrote to memory of 2560	604	build2.exe	build2.exe
PID 604 wrote to memory of 2560	604	build2.exe	build2.exe
PID 604 wrote to memory of 2560	604	build2.exe	build2.exe
PID 604 wrote to memory of 2560	604	build2.exe	build2.exe
PID 604 wrote to memory of 2560	604	build2.exe	build2.exe
PID 604 wrote to memory of 2560	604	build2.exe	build2.exe
PID 604 wrote to memory of 2560	604	build2.exe	build2.exe
PID 1160 wrote to memory of 3508	1160	build3.exe	build3.exe
PID 1160 wrote to memory of 3508	1160	build3.exe	build3.exe
PID 1160 wrote to memory of 3508	1160	build3.exe	build3.exe
PID 1160 wrote to memory of 3508	1160	build3.exe	build3.exe
PID 1160 wrote to memory of 3508	1160	build3.exe	build3.exe
PID 1160 wrote to memory of 3508	1160	build3.exe	build3.exe
PID 1160 wrote to memory of 3508	1160	build3.exe	build3.exe
PID 1160 wrote to memory of 3508	1160	build3.exe	build3.exe
PID 1160 wrote to memory of 3508	1160	build3.exe	build3.exe
PID 3508 wrote to memory of 1092	3508	build3.exe	schtasks.exe
PID 3508 wrote to memory of 1092	3508	build3.exe	schtasks.exe
PID 3508 wrote to memory of 1092	3508	build3.exe	schtasks.exe
PID 2560 wrote to memory of 4000	2560	build2.exe	cmd.exe
PID 2560 wrote to memory of 4000	2560	build2.exe	cmd.exe
PID 2560 wrote to memory of 4000	2560	build2.exe	cmd.exe
PID 4000 wrote to memory of 2720	4000	cmd.exe	taskkill.exe
PID 4000 wrote to memory of 2720	4000	cmd.exe	taskkill.exe
PID 4000 wrote to memory of 2720	4000	cmd.exe	taskkill.exe
PID 4000 wrote to memory of 2704	4000	cmd.exe	timeout.exe
PID 4000 wrote to memory of 2704	4000	cmd.exe	timeout.exe
PID 4000 wrote to memory of 2704	4000	cmd.exe	timeout.exe
PID 1640 wrote to memory of 2544	1640	mstsca.exe	mstsca.exe
PID 1640 wrote to memory of 2544	1640	mstsca.exe	mstsca.exe
PID 1640 wrote to memory of 2544	1640	mstsca.exe	mstsca.exe

C:\Users\Admin\AppData\Local\Temp\9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
"C:\Users\Admin\AppData\Local\Temp\9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3844

C:\Users\Admin\AppData\Local\Temp\9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
"C:\Users\Admin\AppData\Local\Temp\9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe"
2⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2472

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\49ffffc2-0d5f-4f2a-9870-971dfb608822" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:1424

C:\Users\Admin\AppData\Local\Temp\9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
"C:\Users\Admin\AppData\Local\Temp\9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:644

C:\Users\Admin\AppData\Local\Temp\9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
"C:\Users\Admin\AppData\Local\Temp\9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4072

C:\Users\Admin\AppData\Local\e02e9160-674e-45cf-89db-0dcc56b11ff0\build2.exe
"C:\Users\Admin\AppData\Local\e02e9160-674e-45cf-89db-0dcc56b11ff0\build2.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:604

C:\Users\Admin\AppData\Local\e02e9160-674e-45cf-89db-0dcc56b11ff0\build2.exe
"C:\Users\Admin\AppData\Local\e02e9160-674e-45cf-89db-0dcc56b11ff0\build2.exe"
6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2560

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\e02e9160-674e-45cf-89db-0dcc56b11ff0\build2.exe" & del C:\ProgramData\*.dll & exit
7⤵
- Suspicious use of WriteProcessMemory
PID:4000

C:\Windows\SysWOW64\taskkill.exe
taskkill /im build2.exe /f
8⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2720

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
8⤵
- Delays execution with timeout.exe
PID:2704

C:\Users\Admin\AppData\Local\e02e9160-674e-45cf-89db-0dcc56b11ff0\build3.exe
"C:\Users\Admin\AppData\Local\e02e9160-674e-45cf-89db-0dcc56b11ff0\build3.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1160

C:\Users\Admin\AppData\Local\e02e9160-674e-45cf-89db-0dcc56b11ff0\build3.exe
"C:\Users\Admin\AppData\Local\e02e9160-674e-45cf-89db-0dcc56b11ff0\build3.exe"
6⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3508

C:\Windows\SysWOW64\schtasks.exe
/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
7⤵
- Creates scheduled task(s)
PID:1092

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1640

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
2⤵
- Executes dropped EXE
PID:2544

C:\Windows\SysWOW64\schtasks.exe
/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
3⤵
- Creates scheduled task(s)
PID:3760

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
PID:2160

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
2⤵
- Executes dropped EXE
PID:1764

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

File Permissions Modification

T1222

Modify Registry

T1112

Install Root Certificate

T1130

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\ProgramData\freebl3.dll
MD5
ef2834ac4ee7d6724f255beaf527e635

SHA1
5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

SHA256
a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

SHA512
c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

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C:\ProgramData\mozglue.dll
MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

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C:\ProgramData\msvcp140.dll
MD5
109f0f02fd37c84bfc7508d4227d7ed5

SHA1
ef7420141bb15ac334d3964082361a460bfdb975

SHA256
334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

SHA512
46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

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C:\ProgramData\nss3.dll
MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

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C:\ProgramData\softokn3.dll
MD5
a2ee53de9167bf0d6c019303b7ca84e5

SHA1
2a3c737fa1157e8483815e98b666408a18c0db42

SHA256
43536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083

SHA512
45b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8

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C:\ProgramData\vcruntime140.dll
MD5
7587bf9cb4147022cd5681b015183046

SHA1
f2106306a8f6f0da5afb7fc765cfa0757ad5a628

SHA256
c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

SHA512
0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
MD5
45ae4c94440b86d556d008976da3ba12

SHA1
59af8c430eb5348a74bc5369c875730ce1302512

SHA256
5adaf4262e492af02b2a24430e8ff49511be54bb7c67449449a7d00c2206c8bc

SHA512
2064cb934f4a451180d7060f46e8771116ba3829e774eec27b362933857f90c36ace51b86bd033ec53affcf76c4ca63e80ee5981c4c6f999a4377dd5153e6252

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD5
bdf3dbb928c6755deb36ea5c31d42df0

SHA1
dfa16bffd25cefe1cf48d323649b2d3b7e81f056

SHA256
e92857babb45ecfe5c5a1f2161f98236a1a1e218dec93cd609f691014398b95f

SHA512
60ef0ee4d86494a360f2611830173e070cc407233739ce5da6ba7bdf204c95659085e5ea56afba82df3de7172c9f41c87f240ea0f946378cd4d5de3f34ef61c9

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
MD5
c1796236660e851483f5a15bfa6e1527

SHA1
db8cec010ad1c415599f2f21e5a0a4b8e6b7d2a2

SHA256
5eb8c4208a3ec329f0af8db958e07238ab7d0d61c6f9b1df79b98d41012a49a5

SHA512
c1accc9ebc953649f014073d6fe20658928818053d20e94c8dcffae9a1dc6c01902ef42c3ff5b7d97d94542427ae9c5ce6359085e2bbc3d2eb86408402f2b01c

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD5
aa3ccdcebea3e0a719588a859eb7e225

SHA1
c0a36ff1b80f7ed2b04c308bf4ae9a4715833d4f

SHA256
11464f12b3d22706663768bbe01c37b996826daafa2df3c484ad74bcf2ddc131

SHA512
607e2c409a7270d90c92275bc9319291e6d93f9534f2ba4fd4870f022b05026bff8c85465c5903405f251aef161dbcc7d6e6fcf21151952129b534b46f5cbce5

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C:\Users\Admin\AppData\Local\49ffffc2-0d5f-4f2a-9870-971dfb608822\9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552.exe
MD5
f989cf6659dc7a4eb5d272d9442655d8

SHA1
eb3e78a91652d8dc39eb5c1a22eb157d2b955474

SHA256
9991082cbe2e98db9d4acd7516855ab09901da634d1eabbd71ea26a9fea06552

SHA512
ea2745bfd20e9055a50c27f0b0982e9f9ee224d93a479838f209e931c764f395662dbe447434bc4e5a414b053a54b272cc5668da06ad51376cf4d6ac8519abf3

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C:\Users\Admin\AppData\Local\e02e9160-674e-45cf-89db-0dcc56b11ff0\build2.exe
MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

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C:\Users\Admin\AppData\Local\e02e9160-674e-45cf-89db-0dcc56b11ff0\build2.exe
MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

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C:\Users\Admin\AppData\Local\e02e9160-674e-45cf-89db-0dcc56b11ff0\build2.exe
MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

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C:\Users\Admin\AppData\Local\e02e9160-674e-45cf-89db-0dcc56b11ff0\build3.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Local\e02e9160-674e-45cf-89db-0dcc56b11ff0\build3.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Local\e02e9160-674e-45cf-89db-0dcc56b11ff0\build3.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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\ProgramData\mozglue.dll
MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

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\ProgramData\nss3.dll
MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

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memory/604-131-0x0000000000000000-mapping.dmp

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memory/604-142-0x0000000004C20000-0x0000000004CF6000-memory.dmp

Filesize
856KB

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memory/604-134-0x0000000002FF9000-0x0000000003075000-memory.dmp

Filesize
496KB

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memory/644-122-0x0000000000000000-mapping.dmp

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memory/1092-147-0x0000000000000000-mapping.dmp

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memory/1160-148-0x0000000004E30000-0x0000000004E34000-memory.dmp

Filesize
16KB

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memory/1160-135-0x0000000000000000-mapping.dmp

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memory/1424-120-0x0000000000000000-mapping.dmp

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memory/1764-171-0x0000000000401AFA-mapping.dmp

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memory/2160-169-0x000000000351E000-0x000000000352E000-memory.dmp

Filesize
64KB

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memory/2160-173-0x0000000003250000-0x000000000339A000-memory.dmp

Filesize
1.3MB

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memory/2472-116-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/2472-119-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/2472-117-0x0000000000424141-mapping.dmp

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memory/2544-159-0x0000000000401AFA-mapping.dmp

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memory/2560-143-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

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memory/2560-138-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

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memory/2560-139-0x00000000004A18CD-mapping.dmp

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memory/2704-154-0x0000000000000000-mapping.dmp

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memory/2720-153-0x0000000000000000-mapping.dmp

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memory/3508-144-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

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memory/3508-145-0x0000000000401AFA-mapping.dmp

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memory/3508-149-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

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memory/3760-161-0x0000000000000000-mapping.dmp

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memory/3844-115-0x0000000000858000-0x00000000008E9000-memory.dmp

Filesize
580KB

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memory/3844-118-0x0000000000950000-0x0000000000A6B000-memory.dmp

Filesize
1.1MB

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memory/4000-152-0x0000000000000000-mapping.dmp

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memory/4072-125-0x0000000000424141-mapping.dmp

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memory/4072-130-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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