djvu | f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5

Analysis

max time kernel
122s
max time network
127s
platform
windows10_x64
resource
win10-en-20211014
submitted
22-10-2021 11:50

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General

Target

f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
Size

865KB
MD5

62ca17add223317ef50b2d86cdef53f7
SHA1

ce653cb2a0a941dd7a7ce066140a135cd22b3faa
SHA256

f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5
SHA512

ee239671fc6eaeccab2a176e38050178dde2d1a1fef9e504c1ffb7d56179a812d2f913fd868bab3717aa3e2c66b463071c03ca94d20339a49d4d947a4aabbc0a

Score

10^/10

djvu vidar 517 discovery persistence ransomware spyware stealer

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/3684-117-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/3684-116-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4072-118-0x0000000000E30000-0x0000000000F4B000-memory.dmp	family_djvu
behavioral1/memory/3684-119-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2940-125-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/2940-130-0x0000000000400000-0x0000000000537000-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

Vidar Stealer 4 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/812-135-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar
behavioral1/memory/812-136-0x00000000004A18CD-mapping.dmp	family_vidar
behavioral1/memory/812-139-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar
behavioral1/memory/1772-138-0x0000000004BF0000-0x0000000004CC6000-memory.dmp	family_vidar

Downloads MZ/PE file
Executes dropped EXE 8 IoCs

Processes:

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

pid process

1772 build2.exe
812 build2.exe
1196 build3.exe
3044 build3.exe
1324 mstsca.exe
1596 mstsca.exe
2184 mstsca.exe
3712 mstsca.exe
Loads dropped DLL 2 IoCs

Processes:

build2.exe

pid process

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

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

1164 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
1772	build2.exe
812	build2.exe
1196	build3.exe
3044	build3.exe
1324	mstsca.exe
1596	mstsca.exe
2184	mstsca.exe
3712	mstsca.exe

pid	process
812	build2.exe
812	build2.exe

pid	process
1164	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\35ce49de-b2c9-4a78-b8f7-6a4ea2ff2b89\\f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe\" --AutoStart"	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.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

15 api.2ip.ua
20 api.2ip.ua
14 api.2ip.ua

flow	ioc
15	api.2ip.ua
20	api.2ip.ua
14	api.2ip.ua

Suspicious use of SetThreadContext 6 IoCs

Processes:

f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exef988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exebuild2.exebuild3.exemstsca.exemstsca.exe

description	pid	process	target process
PID 4072 set thread context of 3684	4072	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 1084 set thread context of 2940	1084	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 1772 set thread context of 812	1772	build2.exe	build2.exe
PID 1196 set thread context of 3044	1196	build3.exe	build3.exe
PID 1324 set thread context of 1596	1324	mstsca.exe	mstsca.exe
PID 2184 set thread context of 3712	2184	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

1208 schtasks.exe
1476 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3636 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3508 taskkill.exe

pid	process
1208	schtasks.exe
1476	schtasks.exe

pid	process
3636	timeout.exe

pid	process
3508	taskkill.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exef988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exebuild2.exe

pid	process
3684	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
3684	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
2940	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
2940	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
812	build2.exe
812	build2.exe
812	build2.exe
812	build2.exe
812	build2.exe
812	build2.exe
812	build2.exe
812	build2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 3508 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3508	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exef988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exef988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exef988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exebuild2.exebuild3.exebuild3.exebuild2.execmd.exemstsca.exe

description	pid	process	target process
PID 4072 wrote to memory of 3684	4072	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 4072 wrote to memory of 3684	4072	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 4072 wrote to memory of 3684	4072	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 4072 wrote to memory of 3684	4072	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 4072 wrote to memory of 3684	4072	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 4072 wrote to memory of 3684	4072	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 4072 wrote to memory of 3684	4072	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 4072 wrote to memory of 3684	4072	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 4072 wrote to memory of 3684	4072	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 4072 wrote to memory of 3684	4072	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 3684 wrote to memory of 1164	3684	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	icacls.exe
PID 3684 wrote to memory of 1164	3684	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	icacls.exe
PID 3684 wrote to memory of 1164	3684	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	icacls.exe
PID 3684 wrote to memory of 1084	3684	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 3684 wrote to memory of 1084	3684	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 3684 wrote to memory of 1084	3684	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 1084 wrote to memory of 2940	1084	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 1084 wrote to memory of 2940	1084	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 1084 wrote to memory of 2940	1084	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 1084 wrote to memory of 2940	1084	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 1084 wrote to memory of 2940	1084	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 1084 wrote to memory of 2940	1084	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 1084 wrote to memory of 2940	1084	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 1084 wrote to memory of 2940	1084	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 1084 wrote to memory of 2940	1084	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 1084 wrote to memory of 2940	1084	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
PID 2940 wrote to memory of 1772	2940	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	build2.exe
PID 2940 wrote to memory of 1772	2940	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	build2.exe
PID 2940 wrote to memory of 1772	2940	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	build2.exe
PID 1772 wrote to memory of 812	1772	build2.exe	build2.exe
PID 1772 wrote to memory of 812	1772	build2.exe	build2.exe
PID 1772 wrote to memory of 812	1772	build2.exe	build2.exe
PID 1772 wrote to memory of 812	1772	build2.exe	build2.exe
PID 1772 wrote to memory of 812	1772	build2.exe	build2.exe
PID 1772 wrote to memory of 812	1772	build2.exe	build2.exe
PID 1772 wrote to memory of 812	1772	build2.exe	build2.exe
PID 1772 wrote to memory of 812	1772	build2.exe	build2.exe
PID 2940 wrote to memory of 1196	2940	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	build3.exe
PID 2940 wrote to memory of 1196	2940	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	build3.exe
PID 2940 wrote to memory of 1196	2940	f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe	build3.exe
PID 1196 wrote to memory of 3044	1196	build3.exe	build3.exe
PID 1196 wrote to memory of 3044	1196	build3.exe	build3.exe
PID 1196 wrote to memory of 3044	1196	build3.exe	build3.exe
PID 1196 wrote to memory of 3044	1196	build3.exe	build3.exe
PID 1196 wrote to memory of 3044	1196	build3.exe	build3.exe
PID 1196 wrote to memory of 3044	1196	build3.exe	build3.exe
PID 1196 wrote to memory of 3044	1196	build3.exe	build3.exe
PID 1196 wrote to memory of 3044	1196	build3.exe	build3.exe
PID 1196 wrote to memory of 3044	1196	build3.exe	build3.exe
PID 3044 wrote to memory of 1208	3044	build3.exe	schtasks.exe
PID 3044 wrote to memory of 1208	3044	build3.exe	schtasks.exe
PID 3044 wrote to memory of 1208	3044	build3.exe	schtasks.exe
PID 812 wrote to memory of 2132	812	build2.exe	cmd.exe
PID 812 wrote to memory of 2132	812	build2.exe	cmd.exe
PID 812 wrote to memory of 2132	812	build2.exe	cmd.exe
PID 2132 wrote to memory of 3508	2132	cmd.exe	taskkill.exe
PID 2132 wrote to memory of 3508	2132	cmd.exe	taskkill.exe
PID 2132 wrote to memory of 3508	2132	cmd.exe	taskkill.exe
PID 2132 wrote to memory of 3636	2132	cmd.exe	timeout.exe
PID 2132 wrote to memory of 3636	2132	cmd.exe	timeout.exe
PID 2132 wrote to memory of 3636	2132	cmd.exe	timeout.exe
PID 1324 wrote to memory of 1596	1324	mstsca.exe	mstsca.exe
PID 1324 wrote to memory of 1596	1324	mstsca.exe	mstsca.exe
PID 1324 wrote to memory of 1596	1324	mstsca.exe	mstsca.exe

C:\Users\Admin\AppData\Local\Temp\f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
"C:\Users\Admin\AppData\Local\Temp\f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4072
- C:\Users\Admin\AppData\Local\Temp\f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
  "C:\Users\Admin\AppData\Local\Temp\f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe"
  2⤵
  - Adds Run key to start application
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3684
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\35ce49de-b2c9-4a78-b8f7-6a4ea2ff2b89" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:1164
- - C:\Users\Admin\AppData\Local\Temp\f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
    "C:\Users\Admin\AppData\Local\Temp\f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1084
  - - C:\Users\Admin\AppData\Local\Temp\f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe
      "C:\Users\Admin\AppData\Local\Temp\f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:2940
    - - C:\Users\Admin\AppData\Local\9c83c0f0-9af9-46b0-98fb-0c58f7a04c67\build2.exe
        
        "C:\Users\Admin\AppData\Local\9c83c0f0-9af9-46b0-98fb-0c58f7a04c67\build2.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:1772
      - C:\Users\Admin\AppData\Local\9c83c0f0-9af9-46b0-98fb-0c58f7a04c67\build2.exe
        
        "C:\Users\Admin\AppData\Local\9c83c0f0-9af9-46b0-98fb-0c58f7a04c67\build2.exe"
        6⤵
        Executes dropped EXE
        Loads dropped DLL
        Checks processor information in registry
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:812
        
        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\9c83c0f0-9af9-46b0-98fb-0c58f7a04c67\build2.exe" & del C:\ProgramData\*.dll & exit
        7⤵
        Suspicious use of WriteProcessMemory
        
        PID:2132
        
        C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im build2.exe /f
        8⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:3508
        
        C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 6
        8⤵
        Delays execution with timeout.exe
        
        PID:3636
    - - C:\Users\Admin\AppData\Local\9c83c0f0-9af9-46b0-98fb-0c58f7a04c67\build3.exe
        
        "C:\Users\Admin\AppData\Local\9c83c0f0-9af9-46b0-98fb-0c58f7a04c67\build3.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:1196
      - C:\Users\Admin\AppData\Local\9c83c0f0-9af9-46b0-98fb-0c58f7a04c67\build3.exe
        
        "C:\Users\Admin\AppData\Local\9c83c0f0-9af9-46b0-98fb-0c58f7a04c67\build3.exe"
        6⤵
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:3044
        
        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:1208

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:1324
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  2⤵
  - Executes dropped EXE
  PID:1596
- - 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:1476

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:2184
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  2⤵
  - Executes dropped EXE
  PID:3712

Network

MITRE ATT&CK Enterprise 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 and Directory Permissions Modification

T1222

Install Root Certificate

T1130

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

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
50d9d5311b74576fbbb5c9f204fdc16b

SHA1
7dd97b713e33f287440441aa3bb7966a2cb68321

SHA256
d76a71e8dfd6961d4912a23b2fd207f2a93c67523dfcda252358eafa5821b2ad

SHA512
67d02ce79bb8fd641783ba12ab5587900a03416627939084ce87f22b42ca7d50765947e2238b3c6a70a74bce3c9233b486aaa10feb57e714646e4d02c0c926c0

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

MD5
8f19b97ffda28eb06efc2181fd126b9c

SHA1
142443021d6ffaf32d3d60635d0edf540a039f2e

SHA256
49607d1b931a79642c5268292b4f16f2db7ec77b53f8abddbc0cce36ed88e3f7

SHA512
6577704c531cc07d1ae8d61dfe6d8735d29d1386038fa9e3f5580c80c30dc04570ec0160f51903d05b180c4af68f0eb8e23e2106c3bb367afd32d033aae031e6

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

MD5
152079f3e6ae44e6eb222cf0a371733c

SHA1
c143a0103f4c722739ef7b528e62bc58e75f0fa0

SHA256
e94459befd70cf562903184db7f433210ef455f744400019c2cb72910ee749b6

SHA512
23ae2c7f2b4ba3248129cb3dc5f600025a9d5e9128cecff9c1bcbb3b8c00c76898bcc2737907e8984654de96900b63ccf243641ba260cf12bb7e9563a6d14424

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

MD5
573dd031e7f5806b2cb14ff565352ee7

SHA1
5d2030d9c6b0c6c1e089d11bdac6e66a026ee620

SHA256
88c619efcb425045f051b15d92c7d5ce71e8ac0c94e49e6ed8add26c9d84b377

SHA512
63bebc482bf2f8934a2872955bbbb3f69468b37e0ae8e4e7eb1285dffd5756aeeae38d669f72d2ebebe089cf066c82d144d95cd9a995cfe57e5a092e1390a5f8

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C:\Users\Admin\AppData\Local\35ce49de-b2c9-4a78-b8f7-6a4ea2ff2b89\f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5.exe

MD5
62ca17add223317ef50b2d86cdef53f7

SHA1
ce653cb2a0a941dd7a7ce066140a135cd22b3faa

SHA256
f988d3ca227e942bdcd5ffd0771ae4d09a25922bbe87709d945a1edccf77bcc5

SHA512
ee239671fc6eaeccab2a176e38050178dde2d1a1fef9e504c1ffb7d56179a812d2f913fd868bab3717aa3e2c66b463071c03ca94d20339a49d4d947a4aabbc0a

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C:\Users\Admin\AppData\Local\9c83c0f0-9af9-46b0-98fb-0c58f7a04c67\build2.exe

MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

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C:\Users\Admin\AppData\Local\9c83c0f0-9af9-46b0-98fb-0c58f7a04c67\build2.exe

MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

Download Submit
C:\Users\Admin\AppData\Local\9c83c0f0-9af9-46b0-98fb-0c58f7a04c67\build2.exe

MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

Download Submit
C:\Users\Admin\AppData\Local\9c83c0f0-9af9-46b0-98fb-0c58f7a04c67\build3.exe

MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

Download Submit
C:\Users\Admin\AppData\Local\9c83c0f0-9af9-46b0-98fb-0c58f7a04c67\build3.exe

MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

Download Submit
C:\Users\Admin\AppData\Local\9c83c0f0-9af9-46b0-98fb-0c58f7a04c67\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

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

Download Submit
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/812-139-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/812-136-0x00000000004A18CD-mapping.dmp

Download
memory/812-135-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

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memory/1084-122-0x0000000000000000-mapping.dmp

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memory/1164-120-0x0000000000000000-mapping.dmp

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memory/1196-143-0x0000000003499000-0x00000000034A9000-memory.dmp

Filesize
64KB

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memory/1196-140-0x0000000000000000-mapping.dmp

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memory/1196-148-0x0000000004D20000-0x0000000004D24000-memory.dmp

Filesize
16KB

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memory/1208-147-0x0000000000000000-mapping.dmp

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memory/1476-167-0x0000000000000000-mapping.dmp

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memory/1596-165-0x0000000000401AFA-mapping.dmp

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memory/1772-134-0x0000000003269000-0x00000000032E5000-memory.dmp

Filesize
496KB

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memory/1772-131-0x0000000000000000-mapping.dmp

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memory/1772-138-0x0000000004BF0000-0x0000000004CC6000-memory.dmp

Filesize
856KB

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memory/2132-152-0x0000000000000000-mapping.dmp

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memory/2184-169-0x00000000034EE000-0x00000000034FE000-memory.dmp

Filesize
64KB

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memory/2940-130-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/2940-125-0x0000000000424141-mapping.dmp

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memory/3044-149-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

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memory/3044-145-0x0000000000401AFA-mapping.dmp

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memory/3044-144-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

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memory/3508-153-0x0000000000000000-mapping.dmp

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memory/3636-154-0x0000000000000000-mapping.dmp

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memory/3684-119-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/3684-116-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/3684-117-0x0000000000424141-mapping.dmp

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memory/3712-171-0x0000000000401AFA-mapping.dmp

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memory/4072-118-0x0000000000E30000-0x0000000000F4B000-memory.dmp

Filesize
1.1MB

Download
memory/4072-115-0x0000000000D8A000-0x0000000000E1C000-memory.dmp

Filesize
584KB

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