vidar | 866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da

General

Target

866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe
Size

559KB
MD5

95f0dcc3e4b88dd0eb7f6a95d6a1c38f
SHA1

8ac0decaec841dc5a689938fcacda0b1bbe96bf9
SHA256

866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da
SHA512

5db08a3d20eab0f34325af1c6aaa6059a5875eededb5bf8d79ceb9835d2e92af7f91b3ee8340f23b872dfc40b6523b40ad90fbf058a299e2c4314bb775969fd8
SSDEEP

12288:eP12qROL6WXuAVQybGwAH/6YsHGEwccznuQ9ii/cbFbu1lHDPZ:sXXauAVQyqz6Y6G4wnuQNURi37Z

Score

10^/10

vidar b74ef0d8ce56e494b0d83e1d5be9dbeb credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

11

Botnet

b74ef0d8ce56e494b0d83e1d5be9dbeb

C2

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Signatures

Detect Vidar Stealer 12 IoCs

stealer

resource	yara_rule
behavioral2/memory/1236-1-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1236-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1236-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1236-12-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1236-13-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1236-29-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1236-30-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1236-38-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1236-54-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1236-55-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1236-62-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1236-63-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7

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

Loads dropped DLL 2 IoCs

pid	Process
1236	MSBuild.exe
1236	MSBuild.exe

Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 404 set thread context of 1236	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	78

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1536	404	WerFault.exe	74

System Location Discovery: System Language Discovery 1 TTPs 2 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	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.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

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1236	MSBuild.exe
1236	MSBuild.exe
1236	MSBuild.exe
1236	MSBuild.exe
1236	MSBuild.exe
1236	MSBuild.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1236	MSBuild.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 404 wrote to memory of 3292	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	75
PID 404 wrote to memory of 3292	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	75
PID 404 wrote to memory of 3292	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	75
PID 404 wrote to memory of 292	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	76
PID 404 wrote to memory of 292	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	76
PID 404 wrote to memory of 292	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	76
PID 404 wrote to memory of 1380	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	77
PID 404 wrote to memory of 1380	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	77
PID 404 wrote to memory of 1380	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	77
PID 404 wrote to memory of 1236	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	78
PID 404 wrote to memory of 1236	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	78
PID 404 wrote to memory of 1236	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	78
PID 404 wrote to memory of 1236	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	78
PID 404 wrote to memory of 1236	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	78
PID 404 wrote to memory of 1236	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	78
PID 404 wrote to memory of 1236	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	78
PID 404 wrote to memory of 1236	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	78
PID 404 wrote to memory of 1236	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	78
PID 404 wrote to memory of 1236	404	866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe	78

C:\Users\Admin\AppData\Local\Temp\866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe
"C:\Users\Admin\AppData\Local\Temp\866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:404
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:3292
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:292
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:1380
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:1236
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 404 -s 308
  2⤵
  - Program crash
  PID:1536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/404-0-0x00000000008E8000-0x00000000008E9000-memory.dmp

Filesize
4KB

Download
memory/1236-30-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1236-12-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1236-13-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1236-14-0x00000000221B0000-0x000000002240F000-memory.dmp

Filesize
2.4MB

Download
memory/1236-29-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1236-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1236-38-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1236-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1236-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1236-54-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1236-55-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1236-62-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1236-63-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download

Analysis

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