djvu | 2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4

Analysis

max time kernel
128s
max time network
131s
platform
windows10_x64
resource
win10-en-20210920
submitted
21-10-2021 07:40

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General

Target

2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
Size

781KB
MD5

8146d875b09c2157b761facafbe57db7
SHA1

3bb41a6ade6fb831c1ba8caf8b4a3a5058fd0b8e
SHA256

2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4
SHA512

e840e1df11154728430ba0264f2274380fc8bdf0fe17f71caa49f9c6db3b61b804ecae8b68fbce44fd7145a227c39b89b82ec634249f908349c88e45ad3a5d1d

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/fhsgtsspen6

Signatures

Detected Djvu ransomware 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3940-116-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/3940-115-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4088-118-0x0000000004E40000-0x0000000004F5B000-memory.dmp	family_djvu
behavioral1/memory/3940-119-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4476-124-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/4476-129-0x0000000000400000-0x0000000000537000-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 5 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/3820-134-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar
behavioral1/memory/3820-135-0x00000000004A18CD-mapping.dmp	family_vidar
behavioral1/memory/3212-137-0x0000000004C10000-0x0000000004CE6000-memory.dmp	family_vidar
behavioral1/memory/3820-139-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar
behavioral1/memory/3076-143-0x0000000003250000-0x00000000032FE000-memory.dmp	family_vidar

Downloads MZ/PE file
Executes dropped EXE 6 IoCs

Processes:

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

pid process

3212 build2.exe
3820 build2.exe
3076 build3.exe
496 build3.exe
1852 mstsca.exe
4812 mstsca.exe
Loads dropped DLL 2 IoCs

Processes:

build2.exe

pid process

3820 build2.exe
3820 build2.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File Permissions Modification
T1222

Processes:

icacls.exe

pid process

744 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
3212	build2.exe
3820	build2.exe
3076	build3.exe
496	build3.exe
1852	mstsca.exe
4812	mstsca.exe

pid	process
3820	build2.exe
3820	build2.exe

pid	process
744	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.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\\ae10a141-4d19-4055-a5e5-5f0f7fbeb55c\\2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe\" --AutoStart"	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.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
26 api.2ip.ua

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

Suspicious use of SetThreadContext 5 IoCs

Processes:

2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exebuild2.exebuild3.exemstsca.exe

description	pid	process	target process
PID 4088 set thread context of 3940	4088	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4228 set thread context of 4476	4228	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 3212 set thread context of 3820	3212	build2.exe	build2.exe
PID 3076 set thread context of 496	3076	build3.exe	build3.exe
PID 1852 set thread context of 4812	1852	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

4864 schtasks.exe
824 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3708 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2536 taskkill.exe

pid	process
4864	schtasks.exe
824	schtasks.exe

pid	process
3708	timeout.exe

pid	process
2536	taskkill.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exebuild2.exe

pid	process
3940	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
3940	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
4476	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
4476	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
3820	build2.exe
3820	build2.exe
3820	build2.exe
3820	build2.exe
3820	build2.exe
3820	build2.exe
3820	build2.exe
3820	build2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2536 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2536	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exebuild2.exebuild3.exebuild3.exebuild2.execmd.exemstsca.exe

description	pid	process	target process
PID 4088 wrote to memory of 3940	4088	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4088 wrote to memory of 3940	4088	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4088 wrote to memory of 3940	4088	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4088 wrote to memory of 3940	4088	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4088 wrote to memory of 3940	4088	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4088 wrote to memory of 3940	4088	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4088 wrote to memory of 3940	4088	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4088 wrote to memory of 3940	4088	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4088 wrote to memory of 3940	4088	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4088 wrote to memory of 3940	4088	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 3940 wrote to memory of 744	3940	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	icacls.exe
PID 3940 wrote to memory of 744	3940	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	icacls.exe
PID 3940 wrote to memory of 744	3940	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	icacls.exe
PID 3940 wrote to memory of 4228	3940	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 3940 wrote to memory of 4228	3940	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 3940 wrote to memory of 4228	3940	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4228 wrote to memory of 4476	4228	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4228 wrote to memory of 4476	4228	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4228 wrote to memory of 4476	4228	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4228 wrote to memory of 4476	4228	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4228 wrote to memory of 4476	4228	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4228 wrote to memory of 4476	4228	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4228 wrote to memory of 4476	4228	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4228 wrote to memory of 4476	4228	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4228 wrote to memory of 4476	4228	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4228 wrote to memory of 4476	4228	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
PID 4476 wrote to memory of 3212	4476	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	build2.exe
PID 4476 wrote to memory of 3212	4476	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	build2.exe
PID 4476 wrote to memory of 3212	4476	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	build2.exe
PID 3212 wrote to memory of 3820	3212	build2.exe	build2.exe
PID 3212 wrote to memory of 3820	3212	build2.exe	build2.exe
PID 3212 wrote to memory of 3820	3212	build2.exe	build2.exe
PID 3212 wrote to memory of 3820	3212	build2.exe	build2.exe
PID 3212 wrote to memory of 3820	3212	build2.exe	build2.exe
PID 3212 wrote to memory of 3820	3212	build2.exe	build2.exe
PID 3212 wrote to memory of 3820	3212	build2.exe	build2.exe
PID 3212 wrote to memory of 3820	3212	build2.exe	build2.exe
PID 4476 wrote to memory of 3076	4476	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	build3.exe
PID 4476 wrote to memory of 3076	4476	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	build3.exe
PID 4476 wrote to memory of 3076	4476	2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe	build3.exe
PID 3076 wrote to memory of 496	3076	build3.exe	build3.exe
PID 3076 wrote to memory of 496	3076	build3.exe	build3.exe
PID 3076 wrote to memory of 496	3076	build3.exe	build3.exe
PID 3076 wrote to memory of 496	3076	build3.exe	build3.exe
PID 3076 wrote to memory of 496	3076	build3.exe	build3.exe
PID 3076 wrote to memory of 496	3076	build3.exe	build3.exe
PID 3076 wrote to memory of 496	3076	build3.exe	build3.exe
PID 3076 wrote to memory of 496	3076	build3.exe	build3.exe
PID 3076 wrote to memory of 496	3076	build3.exe	build3.exe
PID 496 wrote to memory of 824	496	build3.exe	schtasks.exe
PID 496 wrote to memory of 824	496	build3.exe	schtasks.exe
PID 496 wrote to memory of 824	496	build3.exe	schtasks.exe
PID 3820 wrote to memory of 2168	3820	build2.exe	cmd.exe
PID 3820 wrote to memory of 2168	3820	build2.exe	cmd.exe
PID 3820 wrote to memory of 2168	3820	build2.exe	cmd.exe
PID 2168 wrote to memory of 2536	2168	cmd.exe	taskkill.exe
PID 2168 wrote to memory of 2536	2168	cmd.exe	taskkill.exe
PID 2168 wrote to memory of 2536	2168	cmd.exe	taskkill.exe
PID 2168 wrote to memory of 3708	2168	cmd.exe	timeout.exe
PID 2168 wrote to memory of 3708	2168	cmd.exe	timeout.exe
PID 2168 wrote to memory of 3708	2168	cmd.exe	timeout.exe
PID 1852 wrote to memory of 4812	1852	mstsca.exe	mstsca.exe
PID 1852 wrote to memory of 4812	1852	mstsca.exe	mstsca.exe
PID 1852 wrote to memory of 4812	1852	mstsca.exe	mstsca.exe

C:\Users\Admin\AppData\Local\Temp\2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
"C:\Users\Admin\AppData\Local\Temp\2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4088

C:\Users\Admin\AppData\Local\Temp\2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
"C:\Users\Admin\AppData\Local\Temp\2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe"
2⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3940

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\ae10a141-4d19-4055-a5e5-5f0f7fbeb55c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:744

C:\Users\Admin\AppData\Local\Temp\2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
"C:\Users\Admin\AppData\Local\Temp\2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4228

C:\Users\Admin\AppData\Local\Temp\2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
"C:\Users\Admin\AppData\Local\Temp\2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4476

C:\Users\Admin\AppData\Local\070e07be-9eb2-4e18-ba1d-0412790b0f69\build2.exe
"C:\Users\Admin\AppData\Local\070e07be-9eb2-4e18-ba1d-0412790b0f69\build2.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3212

C:\Users\Admin\AppData\Local\070e07be-9eb2-4e18-ba1d-0412790b0f69\build2.exe
"C:\Users\Admin\AppData\Local\070e07be-9eb2-4e18-ba1d-0412790b0f69\build2.exe"
6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3820

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\070e07be-9eb2-4e18-ba1d-0412790b0f69\build2.exe" & del C:\ProgramData\*.dll & exit
7⤵
- Suspicious use of WriteProcessMemory
PID:2168

C:\Windows\SysWOW64\taskkill.exe
taskkill /im build2.exe /f
8⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2536

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
8⤵
- Delays execution with timeout.exe
PID:3708

C:\Users\Admin\AppData\Local\070e07be-9eb2-4e18-ba1d-0412790b0f69\build3.exe
"C:\Users\Admin\AppData\Local\070e07be-9eb2-4e18-ba1d-0412790b0f69\build3.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3076

C:\Users\Admin\AppData\Local\070e07be-9eb2-4e18-ba1d-0412790b0f69\build3.exe
"C:\Users\Admin\AppData\Local\070e07be-9eb2-4e18-ba1d-0412790b0f69\build3.exe"
6⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:496

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:824

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:1852

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
2⤵
- Executes dropped EXE
PID:4812

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:4864

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

Replay Monitor

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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
3183751859498c44f6d0ee8e2aab2c17

SHA1
3948927d001256209b5e4b25003c3c4ccb9ad6bc

SHA256
fd7b40ffbaccd347c4daa2d0530a3b74114fcb55c78423d67750a8be92c70a28

SHA512
88de4b4c2818650f7080a9afdcbe8764f1604bbf77f08f2ce286beb5a00e6cb30352f6180f64e7b5d9790a1e5ebefde6e62d8221e55228942d5652a1e0cd4fa6

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD5
98a2414b3a6062f69b5e91e8ef853e60

SHA1
a7c76d8cc77cc535d73bc6b0ee4f64527572145d

SHA256
cea0b3398c3a6ac31f4582a21afb131878dfd3e489d101af94fd3d682000dba3

SHA512
d186ac4f87a04cc56d2a120d1aa7d96f1574ac7353a7d8b237452260f11a3ebfadb556eb46ee894c75ae1bdc6dae480599c6109eb25873074546847d158dddda

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
MD5
a53257826c20e4ae7c42108a5b75be78

SHA1
164cd104d7e201d40c09c8db95e4f0372bbb23fa

SHA256
e5bf7008578a94226def96712f31b9d4b1721770c0e4ad5880b18f17053027b7

SHA512
112b785adc4c1356f54a9fcc3cd592cd5729c5387cd55064774b3090968ddc45016bbf0c29c04a806f14e8a7a282c9e37fb35c7875e2450214f1f610bdcb7aff

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD5
77346e62737a5f6a8faab4896f55f187

SHA1
dead1757d6c2d923e1188b0d51c0707f03552e9b

SHA256
67d9516348a5b6db182c587fa38faeb7a322a75952821195b967ed0c952afc69

SHA512
805278537cde353a44c2d44bd2f495178d62230952bd5b851b03f864a76d6788478c173a50317be6f13827f2ae0fde36f017bb166af6b2e57f819f8965d9d157

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C:\Users\Admin\AppData\Local\070e07be-9eb2-4e18-ba1d-0412790b0f69\build2.exe
MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

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C:\Users\Admin\AppData\Local\070e07be-9eb2-4e18-ba1d-0412790b0f69\build2.exe
MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

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C:\Users\Admin\AppData\Local\070e07be-9eb2-4e18-ba1d-0412790b0f69\build2.exe
MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

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C:\Users\Admin\AppData\Local\070e07be-9eb2-4e18-ba1d-0412790b0f69\build3.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Local\070e07be-9eb2-4e18-ba1d-0412790b0f69\build3.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Local\070e07be-9eb2-4e18-ba1d-0412790b0f69\build3.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Local\ae10a141-4d19-4055-a5e5-5f0f7fbeb55c\2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4.exe
MD5
8146d875b09c2157b761facafbe57db7

SHA1
3bb41a6ade6fb831c1ba8caf8b4a3a5058fd0b8e

SHA256
2e90453a29d5e0d5cbc61c8c3f55bb70fcbe72af5e0ff823238f1b43f8e650d4

SHA512
e840e1df11154728430ba0264f2274380fc8bdf0fe17f71caa49f9c6db3b61b804ecae8b68fbce44fd7145a227c39b89b82ec634249f908349c88e45ad3a5d1d

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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/496-148-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

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memory/496-145-0x0000000000401AFA-mapping.dmp

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memory/496-144-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

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memory/744-120-0x0000000000000000-mapping.dmp

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memory/824-147-0x0000000000000000-mapping.dmp

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memory/1852-162-0x0000000003579000-0x0000000003589000-memory.dmp

Filesize
64KB

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memory/1852-163-0x0000000003250000-0x000000000339A000-memory.dmp

Filesize
1.3MB

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memory/2168-151-0x0000000000000000-mapping.dmp

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memory/2536-152-0x0000000000000000-mapping.dmp

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memory/3076-143-0x0000000003250000-0x00000000032FE000-memory.dmp

Filesize
696KB

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memory/3076-138-0x0000000000000000-mapping.dmp

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memory/3212-130-0x0000000000000000-mapping.dmp

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memory/3212-137-0x0000000004C10000-0x0000000004CE6000-memory.dmp

Filesize
856KB

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memory/3212-133-0x00000000031D9000-0x0000000003255000-memory.dmp

Filesize
496KB

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memory/3708-153-0x0000000000000000-mapping.dmp

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memory/3820-139-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

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memory/3820-135-0x00000000004A18CD-mapping.dmp

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memory/3820-134-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

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memory/3940-116-0x0000000000424141-mapping.dmp

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memory/3940-119-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/3940-115-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/4088-117-0x0000000004D80000-0x0000000004E12000-memory.dmp

Filesize
584KB

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memory/4088-118-0x0000000004E40000-0x0000000004F5B000-memory.dmp

Filesize
1.1MB

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memory/4228-122-0x0000000000000000-mapping.dmp

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memory/4476-124-0x0000000000424141-mapping.dmp

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memory/4476-129-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/4812-165-0x0000000000401AFA-mapping.dmp

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memory/4864-167-0x0000000000000000-mapping.dmp

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