vidar | c9ed91a8bbdcccda38901f1a70590c8ecb9c813109922b3465471d678cc20868

Analysis

max time kernel
96s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
03-02-2025 12:47

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General

Target

fm.exe
Size

4.9MB
MD5

a6974982ceb1a656f6db988828842d87
SHA1

9fbd537a58f1a2f9ee78b4278413ba091ca65cfa
SHA256

c9ed91a8bbdcccda38901f1a70590c8ecb9c813109922b3465471d678cc20868
SHA512

6facd84a6d4622b1c435bf9f77dd7bf4fb5fef222e97e58a62961f571654ad45c0a287195827567ffb17bf26746097577f19638286ac92af0eaf4c9398b82a83
SSDEEP

49152:0T8pWSX5MEq9/DD9dnEtVv2+QVGeWX0iZsml4eGMrEqAtuShOuInfmuh9cHlV/2F:0aWcHiDDjKV9e233y0ZwfK

Score

10^/10

vidar discovery stealer

Malware Config

Extracted

Family

vidar

https://t.me/m08mbk

https://steamcommunity.com/profiles/76561199820567237

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0

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 4988 set thread context of 1392	4988	fm.exe	86

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	fm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BitLockerToGo.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4988 wrote to memory of 1392	4988	fm.exe	86
PID 4988 wrote to memory of 1392	4988	fm.exe	86
PID 4988 wrote to memory of 1392	4988	fm.exe	86
PID 4988 wrote to memory of 1392	4988	fm.exe	86
PID 4988 wrote to memory of 1392	4988	fm.exe	86
PID 4988 wrote to memory of 1392	4988	fm.exe	86
PID 4988 wrote to memory of 1392	4988	fm.exe	86
PID 4988 wrote to memory of 1392	4988	fm.exe	86
PID 4988 wrote to memory of 1392	4988	fm.exe	86
PID 4988 wrote to memory of 1392	4988	fm.exe	86
PID 4988 wrote to memory of 1392	4988	fm.exe	86

C:\Users\Admin\AppData\Local\Temp\fm.exe
"C:\Users\Admin\AppData\Local\Temp\fm.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4988
- C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
  "C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1392

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1392-0-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1392-1-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1392-2-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1392-9-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download