stealc | 0ded624f4dbe031a909d9d36f575dc30f11172d92e356ac0737da60c608efd1e

General

Target

0ded624f4dbe031a909d9d36f575dc30f11172d92e356ac0737da60c608efd1e.exe
Size

1.7MB
MD5

dc0bf542c1b81dc53b6a1c0be6f172bd
SHA1

92449c33c690b96045972d74cba629dd6e3a6e79
SHA256

0ded624f4dbe031a909d9d36f575dc30f11172d92e356ac0737da60c608efd1e
SHA512

a1c5c2a8cf25e1a5fbf0abb13475bf9d50a803b37eb744ebfb3b8800e49744bb6694e6a4566e04a0b26901514128b215088dff1f2eae52e11977f8f7a8da261e
SSDEEP

24576:JoZYQkmdrf+AUfMxVVtes12FxwojKr98YGeGG9iH:JPYx9UkxVVChjHZQsH

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/r8z0l

https://steamcommunity.com/profiles/76561199698764354

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Signatures

Detect Vidar Stealer 13 IoCs

stealer

resource	yara_rule
behavioral2/memory/884-2-0x0000000003F90000-0x00000000040A0000-memory.dmp	family_vidar_v7
behavioral2/memory/2792-8-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/2792-10-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/2792-4-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/2792-15-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/2792-16-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/2792-33-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/2792-34-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/2792-50-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/2792-51-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/2792-62-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/2792-63-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/2792-64-0x0000000000400000-0x0000000000648000-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

Executes dropped EXE 1 IoCs

pid	Process
2792	kat57B5.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 884 set thread context of 2792	884	0ded624f4dbe031a909d9d36f575dc30f11172d92e356ac0737da60c608efd1e.exe	76

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 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat57B5.tmp

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4076	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2792	kat57B5.tmp
2792	kat57B5.tmp
2792	kat57B5.tmp
2792	kat57B5.tmp

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 884 wrote to memory of 2792	884	0ded624f4dbe031a909d9d36f575dc30f11172d92e356ac0737da60c608efd1e.exe	76
PID 884 wrote to memory of 2792	884	0ded624f4dbe031a909d9d36f575dc30f11172d92e356ac0737da60c608efd1e.exe	76
PID 884 wrote to memory of 2792	884	0ded624f4dbe031a909d9d36f575dc30f11172d92e356ac0737da60c608efd1e.exe	76
PID 884 wrote to memory of 2792	884	0ded624f4dbe031a909d9d36f575dc30f11172d92e356ac0737da60c608efd1e.exe	76
PID 884 wrote to memory of 2792	884	0ded624f4dbe031a909d9d36f575dc30f11172d92e356ac0737da60c608efd1e.exe	76
PID 884 wrote to memory of 2792	884	0ded624f4dbe031a909d9d36f575dc30f11172d92e356ac0737da60c608efd1e.exe	76
PID 884 wrote to memory of 2792	884	0ded624f4dbe031a909d9d36f575dc30f11172d92e356ac0737da60c608efd1e.exe	76
PID 884 wrote to memory of 2792	884	0ded624f4dbe031a909d9d36f575dc30f11172d92e356ac0737da60c608efd1e.exe	76
PID 2792 wrote to memory of 568	2792	kat57B5.tmp	78
PID 2792 wrote to memory of 568	2792	kat57B5.tmp	78
PID 2792 wrote to memory of 568	2792	kat57B5.tmp	78
PID 568 wrote to memory of 4076	568	cmd.exe	80
PID 568 wrote to memory of 4076	568	cmd.exe	80
PID 568 wrote to memory of 4076	568	cmd.exe	80

C:\Users\Admin\AppData\Local\Temp\0ded624f4dbe031a909d9d36f575dc30f11172d92e356ac0737da60c608efd1e.exe
"C:\Users\Admin\AppData\Local\Temp\0ded624f4dbe031a909d9d36f575dc30f11172d92e356ac0737da60c608efd1e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:884
- C:\Users\Admin\AppData\Local\Temp\kat57B5.tmp
  C:\Users\Admin\AppData\Local\Temp\kat57B5.tmp
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2792
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat57B5.tmp" & rd /s /q "C:\ProgramData\GHJKEHJEGCFC" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:568
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      Delays execution with timeout.exe
      PID:4076

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

2

T1012

System Information Discovery

2

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\Temp\kat57B5.tmp

Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/884-9-0x0000000000400000-0x00000000005B8000-memory.dmp

Filesize
1.7MB

Download
memory/884-2-0x0000000003F90000-0x00000000040A0000-memory.dmp

Filesize
1.1MB

Download
memory/884-0-0x0000000002420000-0x0000000002421000-memory.dmp

Filesize
4KB

Download
memory/2792-16-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2792-10-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2792-4-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2792-15-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2792-8-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2792-18-0x00000000193A0000-0x00000000195FF000-memory.dmp

Filesize
2.4MB

Download
memory/2792-33-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2792-34-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2792-50-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2792-51-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2792-62-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2792-63-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2792-64-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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