vidar | 58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0

General

Target

58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe
Size

500KB
MD5

29d08dc04094d437a685e46db50d80a4
SHA1

6cf1d4d30fb7ddfeb97b2e5167b8f5ec69bf9b3e
SHA256

58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0
SHA512

84ddfac2abf6e546d8e7e4757262f200c528c2051a7cc92bb7a6c83adafdd0ec5e011813329745ba5589475fbecf7ae3825bf359264390978508c1c6f5ce145c
SSDEEP

12288:zA0WoeZUvaamvY7kmA7YJCMKKvTKbkL+Kawd:00XVpmQntvKKvgxBW

Score

10^/10

vidar fc0stn discovery stealer

Malware Config

Extracted

Family

vidar

Botnet

fc0stn

C2

https://t.me/w0ctzn

https://steamcommunity.com/profiles/76561199817305251

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:131.0) Gecko/20100101 Firefox/131.0

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2584 set thread context of 2200	2584	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe	31

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2208	2584	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 2 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	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe

Modifies system certificate store 2 TTPs 3 IoCs

defense_evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 2200	2584	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe	31
PID 2584 wrote to memory of 2200	2584	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe	31
PID 2584 wrote to memory of 2200	2584	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe	31
PID 2584 wrote to memory of 2200	2584	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe	31
PID 2584 wrote to memory of 2200	2584	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe	31
PID 2584 wrote to memory of 2200	2584	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe	31
PID 2584 wrote to memory of 2200	2584	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe	31
PID 2584 wrote to memory of 2200	2584	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe	31
PID 2584 wrote to memory of 2200	2584	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe	31
PID 2584 wrote to memory of 2200	2584	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe	31
PID 2584 wrote to memory of 2200	2584	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe	31
PID 2584 wrote to memory of 2200	2584	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe	31
PID 2584 wrote to memory of 2208	2584	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe	32
PID 2584 wrote to memory of 2208	2584	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe	32
PID 2584 wrote to memory of 2208	2584	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe	32
PID 2584 wrote to memory of 2208	2584	58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe	32

C:\Users\Admin\AppData\Local\Temp\58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe
"C:\Users\Admin\AppData\Local\Temp\58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Users\Admin\AppData\Local\Temp\58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe
  "C:\Users\Admin\AppData\Local\Temp\58ade81f8abeefd49c3e1d77bf7284e2ccb15e5e56622c39a5a5e98eafd61eb0.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies system certificate store
  PID:2200
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2584 -s 500
  2⤵
  - Program crash
  PID:2208

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabF182.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarF1B4.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2200-15-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2200-20-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2200-9-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2200-13-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2200-18-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2200-16-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2200-132-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2200-11-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2200-7-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2200-5-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2200-58-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2200-22-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2200-3-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2584-23-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2584-1-0x0000000000EF0000-0x0000000000F72000-memory.dmp

Filesize
520KB

Download
memory/2584-21-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2584-0-0x000000007436E000-0x000000007436F000-memory.dmp

Filesize
4KB

Download

Analysis

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