vidar | c1b3b50c6ab0ed4e6e453cd5762585cd10876007f4a2de76fb26f498350c92d7

Analysis

max time kernel
59s
max time network
57s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
09/08/2024, 08:30

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General

Target
file.exe
Size 4.8MB
Sample240809-kd6srssdlb
SHA256 c1b3b50c6ab0ed4e6e453cd5762585cd10876007f4a2de76fb26f498350c92d7
MD5 f3d762fb769f1b2bd26865e91466d473
SHA1 11adc51a020062bfe97c5d0b0e8400c163d73bed
SHA512 b3debb1f56949e56785559591e9dd6877513e170a5311ef13856364703cdcc3f70b7b9dcf131d46c20f7d65feef507805ad89bd4469b2400e0323e3436e00607
SSDEEP 49152:GXU7GvcT28J03pVikASp1vYpDbG2b2zjx9oeL5EmmHJju05aIAUXSjNJ:GXU7r03pViaEDbG2bo/tEmmju05HAGs
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

vidar credential_access discovery stealer

Malware Config

Extracted

Family

vidar

https://steamcommunity.com/profiles/76561199747278259
https://t.me/armad2a

Attributes

user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 YaBrowser/24.6.0.1 Safari/537.36

Signatures

Detect Vidar Stealer 3 IoCs

stealer

resource	yara_rule
behavioral1/memory/1636-80-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral1/memory/1636-130-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral1/memory/1636-133-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1512 set thread context of 1636	1512	file.exe	30

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

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	MSBuild.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	MSBuild.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1664	timeout.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1636	MSBuild.exe
1636	MSBuild.exe
1636	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1512	file.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1512 wrote to memory of 1636	1512	file.exe	30
PID 1512 wrote to memory of 1636	1512	file.exe	30
PID 1512 wrote to memory of 1636	1512	file.exe	30
PID 1512 wrote to memory of 1636	1512	file.exe	30
PID 1512 wrote to memory of 1636	1512	file.exe	30
PID 1512 wrote to memory of 1636	1512	file.exe	30
PID 1512 wrote to memory of 1636	1512	file.exe	30
PID 1512 wrote to memory of 1636	1512	file.exe	30
PID 1512 wrote to memory of 1636	1512	file.exe	30
PID 1512 wrote to memory of 1636	1512	file.exe	30
PID 1512 wrote to memory of 1636	1512	file.exe	30
PID 1636 wrote to memory of 2892	1636	MSBuild.exe	33
PID 1636 wrote to memory of 2892	1636	MSBuild.exe	33
PID 1636 wrote to memory of 2892	1636	MSBuild.exe	33
PID 1636 wrote to memory of 2892	1636	MSBuild.exe	33
PID 2892 wrote to memory of 1664	2892	cmd.exe	35
PID 2892 wrote to memory of 1664	2892	cmd.exe	35
PID 2892 wrote to memory of 1664	2892	cmd.exe	35
PID 2892 wrote to memory of 1664	2892	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1512
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1636
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe" & rd /s /q "C:\ProgramData\HCAEHJJKFCAA" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2892
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:1664

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

CabD377.tmp

Path C:\Users\Admin\AppData\Local\Temp\CabD377.tmp
Size 70KB
SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
MD5 49aebf8cbd62d92ac215b2923fb1b9f5
SHA1 1723be06719828dda65ad804298d0431f6aff976
SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
SSDEEP 1536:gc257bHnClJ3v5mnAQEBP+bfnW8Ctl8G1G4eu76NWDdB34w18R5cBWcJAm68+Q:gp2ld5jPqW8LgeulxB3fgcEfDQ
MD5 SHA1 SHA512 SSDEEP

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TarD3C8.tmp

Path C:\Users\Admin\AppData\Local\Temp\TarD3C8.tmp
Size 181KB
SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
MD5 4ea6026cf93ec6338144661bf1202cd1
SHA1 a1dec9044f750ad887935a01430bf49322fbdcb7
SHA512 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b
SSDEEP 1536:aAZw/J+lCUsTRvsqgCyqWlUDNWdm1wpSru2A0XwjY/z02DTr3rmt6mZ:as2J+qTR0XCy/dmASru2AijbdG
MD5 SHA1 SHA512 SSDEEP

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memory/1512-38-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-34-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-2-0x0000000074D10000-0x00000000753FE000-memory.dmp

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memory/1512-5-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-28-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-32-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-40-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-62-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-61-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-58-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-56-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-64-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-55-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-65-0x0000000074D10000-0x00000000753FE000-memory.dmp

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memory/1512-52-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-50-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-49-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-36-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-44-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-42-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-4-0x0000000000A20000-0x0000000000A3C000-memory.dmp

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memory/1512-0-0x0000000074D1E000-0x0000000074D1F000-memory.dmp

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memory/1512-46-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-30-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-26-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-22-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-20-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-1-0x0000000000A70000-0x0000000000F44000-memory.dmp

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memory/1512-3-0x0000000004A90000-0x0000000004BD0000-memory.dmp

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memory/1512-24-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-18-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-16-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-14-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-81-0x0000000074D10000-0x00000000753FE000-memory.dmp

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memory/1512-13-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-10-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-8-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1512-7-0x0000000000A20000-0x0000000000A35000-memory.dmp

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memory/1636-68-0x0000000000400000-0x0000000000643000-memory.dmp

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memory/1636-80-0x0000000000400000-0x0000000000643000-memory.dmp

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memory/1636-66-0x0000000000400000-0x0000000000643000-memory.dmp

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memory/1636-130-0x0000000000400000-0x0000000000643000-memory.dmp

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memory/1636-133-0x0000000000400000-0x0000000000643000-memory.dmp

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