vidar | bfe420ea0760974bdb7f76c5c95f8694e70255b9cfbf5ff19c1be2cec5c76a50

Analysis

max time kernel
74s
max time network
136s
platform
windows10_x64
resource
win10-en
submitted
03/09/2021, 07:37

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General

Target
e51699a67179fb4839bc309d467fa5ae.exe
Size 645KB
Sample210903-jfvb3scfh8
SHA256 bfe420ea0760974bdb7f76c5c95f8694e70255b9cfbf5ff19c1be2cec5c76a50
MD5 e51699a67179fb4839bc309d467fa5ae
SHA1 588a448e5c770938baaa328f72f7037224bf0095
SHA512 5625faeb44c900964529c9ecf6eed439634f3be83a90ffe56c4f843c517bda71e864d0eb0f355dfef8c98fe5314a8a8b2d19774e40f1a8022919e569a1a06239
MD5 SHA1 SHA512

Score

10^/10

vidar 1008 spyware stealer

Malware Config

Extracted

Family

vidar

Version

40.4

Botnet

1008

https://romkaxarit.tumblr.com/

Attributes

profile_id
1008

Signatures

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 2604 created 3176	2604	WerFault.exe	68

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

Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral2/memory/3176-115-0x0000000003E20000-0x0000000003EF3000-memory.dmp	family_vidar
behavioral2/memory/3176-116-0x0000000000400000-0x00000000021BF000-memory.dmp	family_vidar

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
3176	e51699a67179fb4839bc309d467fa5ae.exe
3176	e51699a67179fb4839bc309d467fa5ae.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

Program crash 16 IoCs

pid	pid_target	Process	procid_target
3900	3176	WerFault.exe	68
3864	3176	WerFault.exe	68
1600	3176	WerFault.exe	68
3820	3176	WerFault.exe	68
2680	3176	WerFault.exe	68
3480	3176	WerFault.exe	68
1956	3176	WerFault.exe	68
2184	3176	WerFault.exe	68
2332	3176	WerFault.exe	68
1148	3176	WerFault.exe	68
1804	3176	WerFault.exe	68
2240	3176	WerFault.exe	68
4044	3176	WerFault.exe	68
3872	3176	WerFault.exe	68
1940	3176	WerFault.exe	68
2604	3176	WerFault.exe	68

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	e51699a67179fb4839bc309d467fa5ae.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 5c000000010000000400000000080000090000000100000054000000305206082b0601050507030206082b06010505070303060a2b0601040182370a030406082b0601050507030406082b0601050507030606082b0601050507030706082b0601050507030106082b0601050507030853000000010000004300000030413022060c2b06010401b231010201050130123010060a2b0601040182373c0101030200c0301b060567810c010330123010060a2b0601040182373c0101030200c0620000000100000020000000d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef40b000000010000001c0000005300650063007400690067006f002000280041004100410029000000140000000100000014000000a0110a233e96f107ece2af29ef82a57fd030a4b41d00000001000000100000002e0d6875874a44c820912e85e964cfdb030000000100000014000000d1eb23a46d17d68fd92564c2f1f1601764d8e349200000000100000036040000308204323082031aa003020102020101300d06092a864886f70d0101050500307b310b3009060355040613024742311b301906035504080c1247726561746572204d616e636865737465723110300e06035504070c0753616c666f7264311a3018060355040a0c11436f6d6f646f204341204c696d697465643121301f06035504030c18414141204365727469666963617465205365727669636573301e170d3034303130313030303030305a170d3238313233313233353935395a307b310b3009060355040613024742311b301906035504080c1247726561746572204d616e636865737465723110300e06035504070c0753616c666f7264311a3018060355040a0c11436f6d6f646f204341204c696d697465643121301f06035504030c1841414120436572746966696361746520536572766963657330820122300d06092a864886f70d01010105000382010f003082010a0282010100be409df46ee1ea76871c4d45448ebe46c883069dc12afe181f8ee402faf3ab5d508a16310b9a06d0c57022cd492d5463ccb66e68460b53eacb4c24c0bc724eeaf115aef4549a120ac37ab23360e2da8955f32258f3dedccfef8386a28c944f9f68f29890468427c776bfe3cc352c8b5e07646582c048b0a891f9619f762050a891c766b5eb78620356f08a1a13ea31a31ea099fd38f6f62732586f07f56bb8fb142bafb7aaccd6635f738cda0599a838a8cb17783651ace99ef4783a8dcf0fd942e2980cab2f9f0e01deef9f9949f12ddfac744d1b98b547c5e529d1f99018c7629cbe83c7267b3e8a25c7c0dd9de6356810209d8fd8ded2c3849c0d5ee82fc90203010001a381c03081bd301d0603551d0e04160414a0110a233e96f107ece2af29ef82a57fd030a4b4300e0603551d0f0101ff040403020106300f0603551d130101ff040530030101ff307b0603551d1f047430723038a036a0348632687474703a2f2f63726c2e636f6d6f646f63612e636f6d2f414141436572746966696361746553657276696365732e63726c3036a034a0328630687474703a2f2f63726c2e636f6d6f646f2e6e65742f414141436572746966696361746553657276696365732e63726c300d06092a864886f70d010105050003820101000856fc02f09be8ffa4fad67bc64480ce4fc4c5f60058cca6b6bc1449680476e8e6ee5dec020f60d68d50184f264e01e3e6b0a5eebfbc745441bffdfc12b8c74f5af48960057f60b7054af3f6f1c2bfc4b97486b62d7d6bccd2f346dd2fc6e06ac3c334032c7d96dd5ac20ea70a99c1058bab0c2ff35c3acf6c37550987de53406c58effcb6ab656e04f61bdc3ce05a15c69ed9f15948302165036cece92173ec9b03a1e037ada015188ffaba02cea72ca910132cd4e50826ab229760f8905e74d4a29a53bdf2a968e0a26ec2d76cb1a30f9ebfeb68e756f2aef2e32b383a0981b56b85d7be2ded3f1ab7b263e2f5622c82d46a004150f139839f95e93696986e	e51699a67179fb4839bc309d467fa5ae.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3900	WerFault.exe
3900	WerFault.exe
3900	WerFault.exe
3900	WerFault.exe
3900	WerFault.exe
3900	WerFault.exe
3900	WerFault.exe
3900	WerFault.exe
3900	WerFault.exe
3900	WerFault.exe
3900	WerFault.exe
3900	WerFault.exe
3900	WerFault.exe
3900	WerFault.exe
3900	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
3864	WerFault.exe
1600	WerFault.exe
1600	WerFault.exe
1600	WerFault.exe
1600	WerFault.exe
1600	WerFault.exe
1600	WerFault.exe
1600	WerFault.exe
1600	WerFault.exe
1600	WerFault.exe
1600	WerFault.exe
1600	WerFault.exe
1600	WerFault.exe
1600	WerFault.exe
1600	WerFault.exe
1600	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
3820	WerFault.exe
2680	WerFault.exe
2680	WerFault.exe
2680	WerFault.exe
2680	WerFault.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeRestorePrivilege	3900	WerFault.exe
Token: SeBackupPrivilege	3900	WerFault.exe
Token: SeDebugPrivilege	3900	WerFault.exe
Token: SeDebugPrivilege	3864	WerFault.exe
Token: SeDebugPrivilege	1600	WerFault.exe
Token: SeDebugPrivilege	3820	WerFault.exe
Token: SeDebugPrivilege	2680	WerFault.exe
Token: SeDebugPrivilege	3480	WerFault.exe
Token: SeDebugPrivilege	1956	WerFault.exe
Token: SeDebugPrivilege	2184	WerFault.exe
Token: SeDebugPrivilege	2332	WerFault.exe
Token: SeDebugPrivilege	1148	WerFault.exe
Token: SeDebugPrivilege	1804	WerFault.exe
Token: SeDebugPrivilege	2240	WerFault.exe
Token: SeDebugPrivilege	4044	WerFault.exe
Token: SeDebugPrivilege	3872	WerFault.exe
Token: SeDebugPrivilege	1940	WerFault.exe
Token: SeDebugPrivilege	2604	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\e51699a67179fb4839bc309d467fa5ae.exe
"C:\Users\Admin\AppData\Local\Temp\e51699a67179fb4839bc309d467fa5ae.exe"
1⤵
- Loads dropped DLL
- Modifies system certificate store
PID:3176
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 760
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3900
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 832
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3864
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 816
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1600
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 864
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3820
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 956
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 968
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:3480
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1396
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:1956
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1408
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:2184
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1416
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:2332
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1548
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:1148
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1068
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:1804
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1616
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:2240
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1068
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:4044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1616
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:3872
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1660
  2⤵
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:1940
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1656
  2⤵
  - Suspicious use of NtCreateProcessExOtherParentProcess
  - Program crash
  - Suspicious use of AdjustPrivilegeToken
  PID:2604

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

T1130

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3176-115-0x0000000003E20000-0x0000000003EF3000-memory.dmp

Download

memory/3176-116-0x0000000000400000-0x00000000021BF000-memory.dmp

Download