vidar | 610405206f96bddcd27807b4bd21b14307bba9edd0fecd9cb70e947f10f83b05

General

Target

2025-01-23_7a58b56b7f6c48e110f9ed84d25f0286_frostygoop_poet-rat_snatch.exe
Size

8.1MB
MD5

7a58b56b7f6c48e110f9ed84d25f0286
SHA1

73bbfca9d18b9eeb933f36fc2ba37bf48dfcddb4
SHA256

610405206f96bddcd27807b4bd21b14307bba9edd0fecd9cb70e947f10f83b05
SHA512

5ffd74a253854e8c8e6254f79eb123aa7b730631aea846389261d00faadc2a66dadf037d26902bedb1f0449e6955c38ff4911d850e13e3f68117459cd3247e9b
SSDEEP

98304:dhFvAJyeCllfUonZRljtdRHDhbNhVvF8Dtg5t+7bxQ9AH:HmjoZRlRHTP9x9AH

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 868 set thread context of 2164	868	2025-01-23_7a58b56b7f6c48e110f9ed84d25f0286_frostygoop_poet-rat_snatch.exe	31

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	2025-01-23_7a58b56b7f6c48e110f9ed84d25f0286_frostygoop_poet-rat_snatch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BitLockerToGo.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 868 wrote to memory of 2164	868	2025-01-23_7a58b56b7f6c48e110f9ed84d25f0286_frostygoop_poet-rat_snatch.exe	31
PID 868 wrote to memory of 2164	868	2025-01-23_7a58b56b7f6c48e110f9ed84d25f0286_frostygoop_poet-rat_snatch.exe	31
PID 868 wrote to memory of 2164	868	2025-01-23_7a58b56b7f6c48e110f9ed84d25f0286_frostygoop_poet-rat_snatch.exe	31
PID 868 wrote to memory of 2164	868	2025-01-23_7a58b56b7f6c48e110f9ed84d25f0286_frostygoop_poet-rat_snatch.exe	31
PID 868 wrote to memory of 2164	868	2025-01-23_7a58b56b7f6c48e110f9ed84d25f0286_frostygoop_poet-rat_snatch.exe	31
PID 868 wrote to memory of 2164	868	2025-01-23_7a58b56b7f6c48e110f9ed84d25f0286_frostygoop_poet-rat_snatch.exe	31
PID 868 wrote to memory of 2164	868	2025-01-23_7a58b56b7f6c48e110f9ed84d25f0286_frostygoop_poet-rat_snatch.exe	31
PID 868 wrote to memory of 2164	868	2025-01-23_7a58b56b7f6c48e110f9ed84d25f0286_frostygoop_poet-rat_snatch.exe	31
PID 868 wrote to memory of 2164	868	2025-01-23_7a58b56b7f6c48e110f9ed84d25f0286_frostygoop_poet-rat_snatch.exe	31
PID 868 wrote to memory of 2164	868	2025-01-23_7a58b56b7f6c48e110f9ed84d25f0286_frostygoop_poet-rat_snatch.exe	31
PID 868 wrote to memory of 2164	868	2025-01-23_7a58b56b7f6c48e110f9ed84d25f0286_frostygoop_poet-rat_snatch.exe	31
PID 868 wrote to memory of 2164	868	2025-01-23_7a58b56b7f6c48e110f9ed84d25f0286_frostygoop_poet-rat_snatch.exe	31

C:\Users\Admin\AppData\Local\Temp\2025-01-23_7a58b56b7f6c48e110f9ed84d25f0286_frostygoop_poet-rat_snatch.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-23_7a58b56b7f6c48e110f9ed84d25f0286_frostygoop_poet-rat_snatch.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:868
- C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
  "C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2164

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
b2b96b837afb05a9e8953f531592dc96

SHA1
d2991ecd51a509104a08c65bf13b7a5c6630c542

SHA256
281fd988a46f8064cda76363df4a67ff544bf2071f6d93828c389d3106f00aa7

SHA512
39af4982030bc5e10f181b9147541daeaf03e9cd1a57d896d7faa64c1104193a3a4a9e1c91f4a8de9f76361c88d430e1a6224da6ca5f9e4c0fe67a7a17fd8c6c

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab61D1.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar61F3.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2164-0-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2164-1-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2164-2-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/2164-100-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download

Analysis

Sharing