vidar | a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01

General

Target

a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
Size

1.4MB
MD5

c513c1da60b31eaa8b46870f9f0e29ff
SHA1

b564919aeb814216d09f6a79221efcf7a22de7b6
SHA256

a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01
SHA512

13f1d7ecab6c705445eac1c7a84695f7672fcf37e756776b172dabde739d5db1f25980203d2789b372ef5a18773699060d4174c2b65964794e67ae42f5d87503

Score

10^/10

vidar 921 spyware stealer

Malware Config

Extracted

Family

vidar

Version

40

Botnet

921

C2

https://lenak513.tumblr.com/

Attributes

profile_id
921

Signatures

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

Vidar Stealer 3 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/2836-121-0x0000000000400000-0x00000000004A1000-memory.dmp	family_vidar
behavioral1/memory/2836-122-0x000000000046B77D-mapping.dmp	family_vidar
behavioral1/memory/2836-123-0x0000000000400000-0x00000000004A1000-memory.dmp	family_vidar

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

Processes:

a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe

pid	process
2836	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
2836	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.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
T1081
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

Processes:

a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe

description	pid	process	target process
PID 3492 set thread context of 2836	3492	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3140 2836 WerFault.exe a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe

pid	pid_target	process	target process
3140	2836	WerFault.exe	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe

description	ioc	process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exeWerFault.exe

pid	process
2836	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
2836	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
2836	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
2836	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
2836	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
2836	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
3140	WerFault.exe
3140	WerFault.exe
3140	WerFault.exe
3140	WerFault.exe
3140	WerFault.exe
3140	WerFault.exe
3140	WerFault.exe
3140	WerFault.exe
3140	WerFault.exe
3140	WerFault.exe
3140	WerFault.exe
3140	WerFault.exe
3140	WerFault.exe
3140	WerFault.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exeWerFault.exe

description	pid	process
Token: SeDebugPrivilege	3492	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
Token: SeRestorePrivilege	3140	WerFault.exe
Token: SeBackupPrivilege	3140	WerFault.exe
Token: SeDebugPrivilege	3140	WerFault.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe

description	pid	process	target process
PID 3492 wrote to memory of 2836	3492	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
PID 3492 wrote to memory of 2836	3492	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
PID 3492 wrote to memory of 2836	3492	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
PID 3492 wrote to memory of 2836	3492	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
PID 3492 wrote to memory of 2836	3492	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
PID 3492 wrote to memory of 2836	3492	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
PID 3492 wrote to memory of 2836	3492	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
PID 3492 wrote to memory of 2836	3492	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe	a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe

C:\Users\Admin\AppData\Local\Temp\a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
"C:\Users\Admin\AppData\Local\Temp\a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3492

C:\Users\Admin\AppData\Local\Temp\a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
C:\Users\Admin\AppData\Local\Temp\a2ac6fd6156acf555c5eabc6a1bd33d03f6d569ae5a9485c6c6619d6292fde01.exe
2⤵
- Loads dropped DLL
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
PID:2836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2836 -s 1900
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3140

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

1

T1130

Modify Registry

1

T1112

Credential Access

Credentials in Files

2

T1081

Discovery

Lateral Movement

Collection

Data from Local System

2

T1005

Exfiltration

Command and Control

Impact

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Downloads

\ProgramData\mozglue.dll
MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
\ProgramData\nss3.dll
MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
memory/2836-121-0x0000000000400000-0x00000000004A1000-memory.dmp

Filesize
644KB

Download
memory/2836-122-0x000000000046B77D-mapping.dmp

Download
memory/2836-123-0x0000000000400000-0x00000000004A1000-memory.dmp

Filesize
644KB

Download
memory/3492-114-0x0000000000420000-0x0000000000421000-memory.dmp

Filesize
4KB

Download
memory/3492-116-0x00000000053A0000-0x00000000053A1000-memory.dmp

Filesize
4KB

Download
memory/3492-117-0x0000000004EA0000-0x0000000004EA1000-memory.dmp

Filesize
4KB

Download
memory/3492-118-0x0000000004EA0000-0x000000000539E000-memory.dmp

Filesize
5.0MB

Download
memory/3492-119-0x0000000002A70000-0x0000000002A71000-memory.dmp

Filesize
4KB

Download
memory/3492-120-0x0000000004FE0000-0x0000000005001000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads