vidar | a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e

General

Target

a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe
Size

598KB
MD5

f10e80c2063428382e5c2571e4ff37aa
SHA1

c68db6d38ef6fd7b4600c2f06b28f2b1874ceed2
SHA256

a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e
SHA512

7b56b97a2aee5723188338bf98e458351fa96dcc216b3709fe69325a749923f1f3c6dc5dc4a228ef4d6c0209b7d218368adad71d7b86af480ec0a9823b766caf
SSDEEP

12288:PEev8yzldqX88RDiKAiAzixPnD7ejB1OqS/31PPLCbAshEKQ3aQ1b64fQETEO:PEIXzlR4iKjQyP2jW3BTADEbmpmt

Score

10^/10

vidar 8ecc9c7eaebfdf2a8cc0586d7419d6ea credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Botnet

8ecc9c7eaebfdf2a8cc0586d7419d6ea

C2

https://t.me/maslengdsa

https://steamcommunity.com/profiles/76561199786602107

https://t.me/lpnjoke

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 13 IoCs

stealer

resource	yara_rule
behavioral1/memory/2684-4-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2684-10-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2684-7-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2684-12-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2684-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2684-148-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2684-167-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2684-197-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2684-216-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2684-347-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2684-366-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2684-409-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral1/memory/2684-428-0x0000000000400000-0x0000000000676000-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
2684	MSBuild.exe
2684	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 2564 set thread context of 2684	2564	a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe	31

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1440	2564	WerFault.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	a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.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
1760	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2684	MSBuild.exe
2684	MSBuild.exe
2684	MSBuild.exe
2684	MSBuild.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 2684	2564	a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe	31
PID 2564 wrote to memory of 2684	2564	a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe	31
PID 2564 wrote to memory of 2684	2564	a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe	31
PID 2564 wrote to memory of 2684	2564	a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe	31
PID 2564 wrote to memory of 2684	2564	a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe	31
PID 2564 wrote to memory of 2684	2564	a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe	31
PID 2564 wrote to memory of 2684	2564	a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe	31
PID 2564 wrote to memory of 2684	2564	a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe	31
PID 2564 wrote to memory of 2684	2564	a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe	31
PID 2564 wrote to memory of 2684	2564	a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe	31
PID 2564 wrote to memory of 2684	2564	a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe	31
PID 2564 wrote to memory of 1440	2564	a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe	32
PID 2564 wrote to memory of 1440	2564	a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe	32
PID 2564 wrote to memory of 1440	2564	a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe	32
PID 2564 wrote to memory of 1440	2564	a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe	32
PID 2684 wrote to memory of 316	2684	MSBuild.exe	35
PID 2684 wrote to memory of 316	2684	MSBuild.exe	35
PID 2684 wrote to memory of 316	2684	MSBuild.exe	35
PID 2684 wrote to memory of 316	2684	MSBuild.exe	35
PID 316 wrote to memory of 1760	316	cmd.exe	37
PID 316 wrote to memory of 1760	316	cmd.exe	37
PID 316 wrote to memory of 1760	316	cmd.exe	37
PID 316 wrote to memory of 1760	316	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe
"C:\Users\Admin\AppData\Local\Temp\a4912840dc1b7230bfd9c89631995da481d23039e0b55905657d5f312bc48a2e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2564
- 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 WriteProcessMemory
  PID:2684
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\AFBAFBKEGCFB" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:316
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:1760
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2564 -s 96
  2⤵
  - Program crash
  PID:1440

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

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
3365eb0d7f130e2c7e5ba6c0ad90f294

SHA1
3b1efe1c04b0ea5fbbf3c422604f47748249dc83

SHA256
080e3a593d060620c2202f8840417945826670b0a637b0eb187dedad9a416437

SHA512
259773610a8f119f110e9af7737ef988d30595c0fa446fdb207b9704977cafb971c3285eccc4c9d33e77c1697f82b35869218e0944a674bd5dca2abeae3066e6

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabD1E1.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarD213.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
\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/2564-0-0x0000000000FAF000-0x0000000000FB1000-memory.dmp

Filesize
8KB

Download
memory/2684-2-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2684-186-0x0000000020790000-0x00000000209EF000-memory.dmp

Filesize
2.4MB

Download
memory/2684-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2684-10-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2684-4-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2684-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2684-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2684-148-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2684-167-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2684-12-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2684-197-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2684-216-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2684-7-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2684-9-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2684-347-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2684-366-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2684-409-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2684-428-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download

Analysis

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