stealc | 2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4

General

Target

2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4.exe
Size

2.2MB
MD5

2c96eb8a35b8a369631d1bf61caf234c
SHA1

2e3510a6250b656d4dbcec4c0d8cdc8410de9449
SHA256

2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4
SHA512

30189986be9676302707e64904e08ea432af1affae62004b008c4f216b983c51599b4c81b5662e98078cb20a53ff2b0719f844f1e6ca751bc1d4971c5f79ffdc
SSDEEP

24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXDmU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPB21tuuIeNHYGY0LzjsJxK

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Extracted

Family

vidar

C2

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Signatures

Detect Vidar Stealer 16 IoCs

stealer

resource	yara_rule
behavioral1/memory/3108-1-0x00000000041E0000-0x00000000042F3000-memory.dmp	family_vidar_v7
behavioral1/memory/4824-8-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4824-10-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4824-4-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4824-22-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4824-23-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4824-40-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4824-41-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4824-50-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4824-57-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4824-65-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4824-66-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4824-77-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4824-78-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4824-79-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4824-80-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	katF126.tmp

Executes dropped EXE 1 IoCs

pid	Process
4824	katF126.tmp

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3108 set thread context of 4824	3108	2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4.exe	88

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	katF126.tmp
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	katF126.tmp

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2808	timeout.exe

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp
4824	katF126.tmp

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3108 wrote to memory of 4824	3108	2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4.exe	88
PID 3108 wrote to memory of 4824	3108	2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4.exe	88
PID 3108 wrote to memory of 4824	3108	2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4.exe	88
PID 3108 wrote to memory of 4824	3108	2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4.exe	88
PID 3108 wrote to memory of 4824	3108	2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4.exe	88
PID 3108 wrote to memory of 4824	3108	2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4.exe	88
PID 3108 wrote to memory of 4824	3108	2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4.exe	88
PID 3108 wrote to memory of 4824	3108	2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4.exe	88
PID 4824 wrote to memory of 652	4824	katF126.tmp	96
PID 4824 wrote to memory of 652	4824	katF126.tmp	96
PID 4824 wrote to memory of 652	4824	katF126.tmp	96
PID 652 wrote to memory of 2808	652	cmd.exe	98
PID 652 wrote to memory of 2808	652	cmd.exe	98
PID 652 wrote to memory of 2808	652	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4.exe
"C:\Users\Admin\AppData\Local\Temp\2177b6c0fc0e6e25d4d05c60bc45e739c80b6b76e5761878fc2d2083866a01a4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3108
- C:\Users\Admin\AppData\Local\Temp\katF126.tmp
  C:\Users\Admin\AppData\Local\Temp\katF126.tmp
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4824
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\katF126.tmp" & rd /s /q "C:\ProgramData\CFIECFIJDAAK" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:652
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      Delays execution with timeout.exe
      PID:2808

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3760,i,13035806169561352434,1332896185314862791,262144 --variations-seed-version --mojo-platform-channel-handle=4120 /prefetch:8
1⤵
PID:4576

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=2976,i,13035806169561352434,1332896185314862791,262144 --variations-seed-version --mojo-platform-channel-handle=2428 /prefetch:3
1⤵
PID:2560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports

Filesize
2B

MD5
d751713988987e9331980363e24189ce

SHA1
97d170e1550eee4afc0af065b78cda302a97674c

SHA256
4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

SHA512
b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries

Filesize
40B

MD5
20d4b8fa017a12a108c87f540836e250

SHA1
1ac617fac131262b6d3ce1f52f5907e31d5f6f00

SHA256
6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d

SHA512
507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

Download Submit
C:\Users\Admin\AppData\Local\Temp\katF126.tmp

Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/3108-0-0x0000000000950000-0x0000000000951000-memory.dmp

Filesize
4KB

Download
memory/3108-1-0x00000000041E0000-0x00000000042F3000-memory.dmp

Filesize
1.1MB

Download
memory/3108-9-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/4824-40-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4824-10-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4824-23-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4824-26-0x00000000201C0000-0x000000002041F000-memory.dmp

Filesize
2.4MB

Download
memory/4824-4-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4824-41-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4824-50-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4824-22-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4824-57-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4824-65-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4824-66-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4824-77-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4824-78-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4824-79-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4824-80-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4824-8-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads