vidar | 47236e5c40be68b57143b5e1359dd109acf6ec6434ade9012ea1b1cbdb533d7e

General

Target

Sеt-uр32X64bit.exe
Size

1023.0MB
MD5

8a93cfb939fa2511b9dae1511124bd2e
SHA1

cdf4351b58fdbf107abb4b0675ece7247f74b614
SHA256

37af3d18beed9d7634ed8f4bc533068999804a1b4def2181bfbb83bb0eb797d1
SHA512

d9b7ba02e2ea0e87f71ac561784fa3849f156ed8c5353ba75ca0643b9a0c7547c08d95eb1484afed187aa27a6573b77ad5d6433a9d8641697ce37ff0c9dd444f
SSDEEP

98304:2T8yyyypnC7VRn8p/qlqb8mUFU1JywLh0dAMLCXq1lUCe49QiRe:TyyyypncVF8cYYmtbb0dAMW6jrih

Score

10^/10

vidar ab19e4e739c4a9003c3f387b732415fd spyware stealer

Malware Config

Extracted

Family

vidar

Version

3.8

Botnet

ab19e4e739c4a9003c3f387b732415fd

C2

https://steamcommunity.com/profiles/76561198272578552

https://t.me/libpcre

Attributes

profile_id_v2
ab19e4e739c4a9003c3f387b732415fd
user_agent
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36 Vivaldi/3.7

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

Loads dropped DLL 2 IoCs

pid	Process
1968	InstallUtil.exe
1968	InstallUtil.exe

Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 384 set thread context of 1968	384	Sеt-uр32X64bit.exe	90

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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3864	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1968	InstallUtil.exe
1968	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	384	Sеt-uр32X64bit.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 384 wrote to memory of 1968	384	Sеt-uр32X64bit.exe	90
PID 384 wrote to memory of 1968	384	Sеt-uр32X64bit.exe	90
PID 384 wrote to memory of 1968	384	Sеt-uр32X64bit.exe	90
PID 384 wrote to memory of 1968	384	Sеt-uр32X64bit.exe	90
PID 384 wrote to memory of 1968	384	Sеt-uр32X64bit.exe	90
PID 384 wrote to memory of 1968	384	Sеt-uр32X64bit.exe	90
PID 384 wrote to memory of 1968	384	Sеt-uр32X64bit.exe	90
PID 384 wrote to memory of 1968	384	Sеt-uр32X64bit.exe	90
PID 384 wrote to memory of 1968	384	Sеt-uр32X64bit.exe	90
PID 1968 wrote to memory of 508	1968	InstallUtil.exe	91
PID 1968 wrote to memory of 508	1968	InstallUtil.exe	91
PID 1968 wrote to memory of 508	1968	InstallUtil.exe	91
PID 508 wrote to memory of 3864	508	cmd.exe	93
PID 508 wrote to memory of 3864	508	cmd.exe	93
PID 508 wrote to memory of 3864	508	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\Sеt-uр32X64bit.exe
"C:\Users\Admin\AppData\Local\Temp\Sеt-uр32X64bit.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:384
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1968
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:508
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 6
      4⤵
      Delays execution with timeout.exe
      PID:3864

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/384-157-0x0000000002ED0000-0x0000000002EE5000-memory.dmp

Filesize
84KB

Download
memory/384-153-0x0000000002ED0000-0x0000000002EE5000-memory.dmp

Filesize
84KB

Download
memory/384-141-0x0000000002ED0000-0x0000000002EE5000-memory.dmp

Filesize
84KB

Download
memory/384-143-0x0000000002ED0000-0x0000000002EE5000-memory.dmp

Filesize
84KB

Download
memory/384-145-0x0000000002ED0000-0x0000000002EE5000-memory.dmp

Filesize
84KB

Download
memory/384-147-0x0000000002ED0000-0x0000000002EE5000-memory.dmp

Filesize
84KB

Download
memory/384-149-0x0000000002ED0000-0x0000000002EE5000-memory.dmp

Filesize
84KB

Download
memory/384-161-0x0000000002ED0000-0x0000000002EE5000-memory.dmp

Filesize
84KB

Download
memory/384-159-0x0000000002ED0000-0x0000000002EE5000-memory.dmp

Filesize
84KB

Download
memory/384-155-0x0000000002ED0000-0x0000000002EE5000-memory.dmp

Filesize
84KB

Download
memory/384-139-0x0000000002ED0000-0x0000000002EE5000-memory.dmp

Filesize
84KB

Download
memory/384-136-0x0000000000790000-0x0000000000B12000-memory.dmp

Filesize
3.5MB

Download
memory/384-151-0x0000000002ED0000-0x0000000002EE5000-memory.dmp

Filesize
84KB

Download
memory/384-137-0x0000000005720000-0x00000000057BC000-memory.dmp

Filesize
624KB

Download
memory/384-138-0x0000000002ED0000-0x0000000002EE5000-memory.dmp

Filesize
84KB

Download
memory/1968-165-0x0000000000400000-0x00000000006FC000-memory.dmp

Filesize
3.0MB

Download
memory/1968-166-0x0000000000400000-0x00000000006FC000-memory.dmp

Filesize
3.0MB

Download
memory/1968-176-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1968-163-0x0000000000400000-0x00000000006FC000-memory.dmp

Filesize
3.0MB

Download
memory/1968-162-0x0000000000400000-0x00000000006FC000-memory.dmp

Filesize
3.0MB

Download
memory/1968-217-0x0000000000400000-0x00000000006FC000-memory.dmp

Filesize
3.0MB

Download
memory/1968-218-0x0000000000400000-0x00000000006FC000-memory.dmp

Filesize
3.0MB

Download
memory/1968-219-0x0000000000400000-0x00000000006FC000-memory.dmp

Filesize
3.0MB

Download

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