vidar | 26ea2e194d4c46b8b8876a642c2cc8f621ce40d71e48aa970e07b854cfeb789e

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
06/09/2023, 06:32

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General

Target
a91ed578d540a6800027ded8b14c85fc.exe
Size 334KB
Sample230906-hamvdadg65
SHA256 26ea2e194d4c46b8b8876a642c2cc8f621ce40d71e48aa970e07b854cfeb789e
MD5 a91ed578d540a6800027ded8b14c85fc
SHA1 f0c1e37946a01d72c8f3161f450b0107e6a6763f
SHA512 7bc146f28518169f87f4d747d1e1d1e81170d1c7d6ba6332835107dfc7a3ee89f146fb527d73d3d259a3ad0b1941a7eeac5b7f971000cb3d8d9351f5465ae3ce
SSDEEP 6144:uIuu+LPNAtSwr4a3lOmv04FCUoB0Gv1uoEt2ClwuFlQ3a:uIuu+7NAL1lOYFlMtuN2CKuc
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

vidar 3cc7bdcabe817dc0282ac6c2b73074dc discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

Botnet

3cc7bdcabe817dc0282ac6c2b73074dc

https://t.me/macstoc
https://steamcommunity.com/profiles/76561199548518734

Attributes

profile_id_v2
3cc7bdcabe817dc0282ac6c2b73074dc

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1859779917-101786662-3680946609-1000\Control Panel\International\Geo\Nation	a91ed578d540a6800027ded8b14c85fc.exe

Executes dropped EXE 1 IoCs

pid	Process
4344	5648795919.exe

Loads dropped DLL 2 IoCs

pid	Process
4344	5648795919.exe
4344	5648795919.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
T1552.001
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3380	3624	WerFault.exe	84
456	4344	WerFault.exe	89

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	5648795919.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	5648795919.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2964	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4344	5648795919.exe
4344	5648795919.exe
4344	5648795919.exe
4344	5648795919.exe
4344	5648795919.exe
4344	5648795919.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2964	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3624 wrote to memory of 4196	3624	a91ed578d540a6800027ded8b14c85fc.exe	87
PID 3624 wrote to memory of 4196	3624	a91ed578d540a6800027ded8b14c85fc.exe	87
PID 3624 wrote to memory of 4196	3624	a91ed578d540a6800027ded8b14c85fc.exe	87
PID 4196 wrote to memory of 4344	4196	cmd.exe	89
PID 4196 wrote to memory of 4344	4196	cmd.exe	89
PID 4196 wrote to memory of 4344	4196	cmd.exe	89
PID 3624 wrote to memory of 4472	3624	a91ed578d540a6800027ded8b14c85fc.exe	90
PID 3624 wrote to memory of 4472	3624	a91ed578d540a6800027ded8b14c85fc.exe	90
PID 3624 wrote to memory of 4472	3624	a91ed578d540a6800027ded8b14c85fc.exe	90
PID 4472 wrote to memory of 2964	4472	cmd.exe	93
PID 4472 wrote to memory of 2964	4472	cmd.exe	93
PID 4472 wrote to memory of 2964	4472	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\a91ed578d540a6800027ded8b14c85fc.exe
"C:\Users\Admin\AppData\Local\Temp\a91ed578d540a6800027ded8b14c85fc.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start /I "" "C:\Users\Admin\AppData\Local\Temp\5648795919.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4196
- - C:\Users\Admin\AppData\Local\Temp\5648795919.exe
    "C:\Users\Admin\AppData\Local\Temp\5648795919.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    PID:4344
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4344 -s 1868
      4⤵
      Program crash
      PID:456
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "a91ed578d540a6800027ded8b14c85fc.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\a91ed578d540a6800027ded8b14c85fc.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4472
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "a91ed578d540a6800027ded8b14c85fc.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2964
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 1908
  2⤵
  - Program crash
  PID:3380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3624 -ip 3624
1⤵
PID:4908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4344 -ip 4344
1⤵
PID:2272

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

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

mozglue.dll

Path C:\ProgramData\mozglue.dll
Size 593KB
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
SSDEEP 12288:BlSyAom/gcRKMdRm4wFkRHuyG4RRGJVDjMk/x21R8gY/r:BKgcRKMdRm4wFkVVDGJVv//x21R8br
MD5 SHA1 SHA512 SSDEEP

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nss3.dll

Path C:\ProgramData\nss3.dll
Size 2.0MB
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
SSDEEP 49152:fECf12gikHlnKGxJRIB+y5nvxnaOSJ3HFNWYrVvE4CQsgzMmQfTU1NrWmy4KoAzh:J7Tf8J1Q+SS5/nr
MD5 SHA1 SHA512 SSDEEP

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5648795919.exe

Path C:\Users\Admin\AppData\Local\Temp\5648795919.exe
Size 385KB
SHA256 efeff2fc675585f7665b4011edfcb7b8823e2294eaefa09743b8596989d58fbb
MD5 8fceb6828207819d875c2340c77c9488
SHA1 eaab9ab66fda8ff431736b69a8530817bdaaa6fe
SHA512 9e9114dc3d34e2e23701fdce90844cf20d2209b6e6894ee46764932564f9bdbddffcc20e5435d3f86695190606e2bb5fd2485dedbe0b4aa24b306ec391bfeda8
SSDEEP 6144:rN8ZRLCuDk1EX2f1K2LJxfOp7YnKgalMC/U3RnSXNGB3SBb7rXispTY:rN8ZR+Rk01hzOpsnFDRP2isN
MD5 SHA1 SHA512 SSDEEP

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5648795919.exe

Path C:\Users\Admin\AppData\Local\Temp\5648795919.exe
Size 385KB
SHA256 efeff2fc675585f7665b4011edfcb7b8823e2294eaefa09743b8596989d58fbb
MD5 8fceb6828207819d875c2340c77c9488
SHA1 eaab9ab66fda8ff431736b69a8530817bdaaa6fe
SHA512 9e9114dc3d34e2e23701fdce90844cf20d2209b6e6894ee46764932564f9bdbddffcc20e5435d3f86695190606e2bb5fd2485dedbe0b4aa24b306ec391bfeda8
SSDEEP 6144:rN8ZRLCuDk1EX2f1K2LJxfOp7YnKgalMC/U3RnSXNGB3SBb7rXispTY:rN8ZR+Rk01hzOpsnFDRP2isN
MD5 SHA1 SHA512 SSDEEP

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memory/3624-0-0x0000000002600000-0x0000000002624000-memory.dmp

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memory/3624-12-0x0000000000400000-0x0000000002428000-memory.dmp

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memory/3624-13-0x0000000002600000-0x0000000002624000-memory.dmp

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memory/3624-18-0x00000000041E0000-0x000000000421E000-memory.dmp

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memory/3624-2-0x0000000000400000-0x0000000002428000-memory.dmp

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memory/3624-1-0x00000000041E0000-0x000000000421E000-memory.dmp

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memory/4344-14-0x0000000004050000-0x0000000004081000-memory.dmp

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memory/4344-16-0x0000000000400000-0x0000000002435000-memory.dmp

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memory/4344-17-0x00000000040A0000-0x00000000040FB000-memory.dmp

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memory/4344-28-0x0000000061E00000-0x0000000061EF3000-memory.dmp

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memory/4344-62-0x0000000000400000-0x0000000002435000-memory.dmp

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memory/4344-72-0x0000000000400000-0x0000000002435000-memory.dmp

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