vidar | 376b8f3c005d39067abeed0d0df58696495739e432377d138f06b9da0473d10d

General

Target

26c464453144b82f4a2f8b868084651a.exe
Size

127KB
MD5

26c464453144b82f4a2f8b868084651a
SHA1

ff89484718114020aec3e7d40e5708694070e5cc
SHA256

376b8f3c005d39067abeed0d0df58696495739e432377d138f06b9da0473d10d
SHA512

1088072c2cd99f911a476b3d3dc6e13464e1b6fc6c91cf3cae1cca568bb76b9dc92c41f0992d66232943128f59d67a16d4459cd6e2a6a1f7de274884650ec52a

Score

10^/10

vidar 754 persistence spyware stealer

Malware Config

Extracted

Family

vidar

Version

48.1

Botnet

754

C2

https://koyu.space/@rspich

Attributes

profile_id
754

Signatures

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

Vidar Stealer 3 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/3680-131-0x0000000000400000-0x00000000004D8000-memory.dmp	family_vidar
behavioral2/memory/3680-132-0x00000000004A115D-mapping.dmp	family_vidar
behavioral2/memory/3680-134-0x0000000000400000-0x00000000004D8000-memory.dmp	family_vidar

Downloads MZ/PE file
Executes dropped EXE 3 IoCs

Processes:

MICROS~1.EXEMICROS~1.EXEMICROS~1.EXE

pid process

3920 MICROS~1.EXE
1672 MICROS~1.EXE
3680 MICROS~1.EXE
Loads dropped DLL 2 IoCs

Processes:

MICROS~1.EXE

pid process

3680 MICROS~1.EXE
3680 MICROS~1.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

pid	process
3680	MICROS~1.EXE
3680	MICROS~1.EXE

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

26c464453144b82f4a2f8b868084651a.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce	26c464453144b82f4a2f8b868084651a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	26c464453144b82f4a2f8b868084651a.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Suspicious use of SetThreadContext 1 IoCs

Processes:

MICROS~1.EXE

description pid process target process

PID 3920 set thread context of 3680 3920 MICROS~1.EXE MICROS~1.EXE
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1092 3680 WerFault.exe MICROS~1.EXE

description	pid	process	target process
PID 3920 set thread context of 3680	3920	MICROS~1.EXE	MICROS~1.EXE

pid	pid_target	process	target process
1092	3680	WerFault.exe	MICROS~1.EXE

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

MICROS~1.EXEMICROS~1.EXEWerFault.exe

pid	process
3920	MICROS~1.EXE
3920	MICROS~1.EXE
3920	MICROS~1.EXE
3920	MICROS~1.EXE
3920	MICROS~1.EXE
3920	MICROS~1.EXE
3920	MICROS~1.EXE
3680	MICROS~1.EXE
3680	MICROS~1.EXE
3680	MICROS~1.EXE
3680	MICROS~1.EXE
3680	MICROS~1.EXE
3680	MICROS~1.EXE
1092	WerFault.exe
1092	WerFault.exe
1092	WerFault.exe
1092	WerFault.exe
1092	WerFault.exe
1092	WerFault.exe
1092	WerFault.exe
1092	WerFault.exe
1092	WerFault.exe
1092	WerFault.exe
1092	WerFault.exe
1092	WerFault.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

MICROS~1.EXEWerFault.exe

description	pid	process
Token: SeDebugPrivilege	3920	MICROS~1.EXE
Token: SeRestorePrivilege	1092	WerFault.exe
Token: SeBackupPrivilege	1092	WerFault.exe
Token: SeDebugPrivilege	1092	WerFault.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

26c464453144b82f4a2f8b868084651a.exeMICROS~1.EXE

description	pid	process	target process
PID 4072 wrote to memory of 3920	4072	26c464453144b82f4a2f8b868084651a.exe	MICROS~1.EXE
PID 4072 wrote to memory of 3920	4072	26c464453144b82f4a2f8b868084651a.exe	MICROS~1.EXE
PID 4072 wrote to memory of 3920	4072	26c464453144b82f4a2f8b868084651a.exe	MICROS~1.EXE
PID 3920 wrote to memory of 1672	3920	MICROS~1.EXE	MICROS~1.EXE
PID 3920 wrote to memory of 1672	3920	MICROS~1.EXE	MICROS~1.EXE
PID 3920 wrote to memory of 1672	3920	MICROS~1.EXE	MICROS~1.EXE
PID 3920 wrote to memory of 3680	3920	MICROS~1.EXE	MICROS~1.EXE
PID 3920 wrote to memory of 3680	3920	MICROS~1.EXE	MICROS~1.EXE
PID 3920 wrote to memory of 3680	3920	MICROS~1.EXE	MICROS~1.EXE
PID 3920 wrote to memory of 3680	3920	MICROS~1.EXE	MICROS~1.EXE
PID 3920 wrote to memory of 3680	3920	MICROS~1.EXE	MICROS~1.EXE
PID 3920 wrote to memory of 3680	3920	MICROS~1.EXE	MICROS~1.EXE
PID 3920 wrote to memory of 3680	3920	MICROS~1.EXE	MICROS~1.EXE
PID 3920 wrote to memory of 3680	3920	MICROS~1.EXE	MICROS~1.EXE

C:\Users\Admin\AppData\Local\Temp\26c464453144b82f4a2f8b868084651a.exe
"C:\Users\Admin\AppData\Local\Temp\26c464453144b82f4a2f8b868084651a.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4072

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\MICROS~1.EXE
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\MICROS~1.EXE
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3920

C:\Users\Admin\AppData\Local\Temp\MICROS~1.EXE
C:\Users\Admin\AppData\Local\Temp\MICROS~1.EXE
3⤵
- Executes dropped EXE
PID:1672

C:\Users\Admin\AppData\Local\Temp\MICROS~1.EXE
C:\Users\Admin\AppData\Local\Temp\MICROS~1.EXE
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:3680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 1628
4⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1092

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

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

Web Service

1

T1102

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\MICROS~1.EXE
MD5
52d5dab06aa1b976bb7c584b36f95c2d

SHA1
b5b3cdd6e1ac21f8382991240cac3d50af63f967

SHA256
3d9b1ddce39d90bb1efa52a5f866f74ea8b9acb922ec27fb15b753e45c864c90

SHA512
7aeaae80477fafc739a1fd3e98d2646af080a54bf8aa78d7c8ab38bef75577d59bd2b868c5d5d8e1108a0d3c4cc10dbe2fada31cf7073b89030526d619c29e9e

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\MICROS~1.EXE
MD5
52d5dab06aa1b976bb7c584b36f95c2d

SHA1
b5b3cdd6e1ac21f8382991240cac3d50af63f967

SHA256
3d9b1ddce39d90bb1efa52a5f866f74ea8b9acb922ec27fb15b753e45c864c90

SHA512
7aeaae80477fafc739a1fd3e98d2646af080a54bf8aa78d7c8ab38bef75577d59bd2b868c5d5d8e1108a0d3c4cc10dbe2fada31cf7073b89030526d619c29e9e

Download Submit
C:\Users\Admin\AppData\Local\Temp\MICROS~1.EXE
MD5
52d5dab06aa1b976bb7c584b36f95c2d

SHA1
b5b3cdd6e1ac21f8382991240cac3d50af63f967

SHA256
3d9b1ddce39d90bb1efa52a5f866f74ea8b9acb922ec27fb15b753e45c864c90

SHA512
7aeaae80477fafc739a1fd3e98d2646af080a54bf8aa78d7c8ab38bef75577d59bd2b868c5d5d8e1108a0d3c4cc10dbe2fada31cf7073b89030526d619c29e9e

Download Submit
C:\Users\Admin\AppData\Local\Temp\MICROS~1.EXE
MD5
52d5dab06aa1b976bb7c584b36f95c2d

SHA1
b5b3cdd6e1ac21f8382991240cac3d50af63f967

SHA256
3d9b1ddce39d90bb1efa52a5f866f74ea8b9acb922ec27fb15b753e45c864c90

SHA512
7aeaae80477fafc739a1fd3e98d2646af080a54bf8aa78d7c8ab38bef75577d59bd2b868c5d5d8e1108a0d3c4cc10dbe2fada31cf7073b89030526d619c29e9e

Download Submit
C:\Users\Admin\AppData\Local\Temp\MICROS~1.EXE
MD5
52d5dab06aa1b976bb7c584b36f95c2d

SHA1
b5b3cdd6e1ac21f8382991240cac3d50af63f967

SHA256
3d9b1ddce39d90bb1efa52a5f866f74ea8b9acb922ec27fb15b753e45c864c90

SHA512
7aeaae80477fafc739a1fd3e98d2646af080a54bf8aa78d7c8ab38bef75577d59bd2b868c5d5d8e1108a0d3c4cc10dbe2fada31cf7073b89030526d619c29e9e

Download Submit
\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/3680-131-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/3680-132-0x00000000004A115D-mapping.dmp

Download
memory/3680-134-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/3920-127-0x0000000005F30000-0x0000000005F31000-memory.dmp

Filesize
4KB

Download
memory/3920-128-0x00000000064C0000-0x00000000064C1000-memory.dmp

Filesize
4KB

Download
memory/3920-129-0x0000000006270000-0x00000000062F0000-memory.dmp

Filesize
512KB

Download
memory/3920-126-0x0000000005DF0000-0x0000000005EAA000-memory.dmp

Filesize
744KB

Download
memory/3920-125-0x0000000001410000-0x0000000001411000-memory.dmp

Filesize
4KB

Download
memory/3920-123-0x0000000000C90000-0x0000000000C91000-memory.dmp

Filesize
4KB

Download
memory/3920-120-0x0000000000000000-mapping.dmp

Download
memory/4072-118-0x0000013F330D0000-0x0000013F330D2000-memory.dmp

Filesize
8KB

Download
memory/4072-119-0x0000013F330D0000-0x0000013F330D2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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