stealc | 82abec64045aa19ed4e93e68bfd88ccd6fab0164b1ff1e2e7acb7e0000c15d51

General

Target

82abec64045aa19ed4e93e68bfd88ccd6fab0164b1ff1e2e7acb7e0000c15d51.exe
Size

2.1MB
MD5

351af1627528e8a81adbd07ecea3a35b
SHA1

a264fb902e5964a1e9f1d0f770ff5aff4be249a0
SHA256

82abec64045aa19ed4e93e68bfd88ccd6fab0164b1ff1e2e7acb7e0000c15d51
SHA512

088e57043a81b9c6eb9071717b9074b14985c66a7f4e0351754ce4f415768eba705c6e63d66dbd4fdbad0b803b1c2cfc489db4ded06e8b740fff233a540991ea
SSDEEP

24576:Ub4m+sws1qLVNMIlJl6DRKbAlcNRfCK9UfMxVVtes12FxwojKr98YGeGG9iO:UZXOjt6DuAwCK9UkxVVChjHZQs

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 9 IoCs

stealer

resource	yara_rule
behavioral1/memory/2388-1-0x0000000003CF0000-0x0000000003E00000-memory.dmp	family_vidar_v7
behavioral1/memory/5084-8-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/5084-10-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/5084-4-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/5084-11-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/5084-12-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/5084-13-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/5084-14-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/5084-17-0x0000000000400000-0x0000000000648000-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

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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	kat6BAA.tmp

Executes dropped EXE 1 IoCs

pid	Process
5084	kat6BAA.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
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 2388 set thread context of 5084	2388	82abec64045aa19ed4e93e68bfd88ccd6fab0164b1ff1e2e7acb7e0000c15d51.exe	87

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	kat6BAA.tmp

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
512	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5084	kat6BAA.tmp
5084	kat6BAA.tmp

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 5084	2388	82abec64045aa19ed4e93e68bfd88ccd6fab0164b1ff1e2e7acb7e0000c15d51.exe	87
PID 2388 wrote to memory of 5084	2388	82abec64045aa19ed4e93e68bfd88ccd6fab0164b1ff1e2e7acb7e0000c15d51.exe	87
PID 2388 wrote to memory of 5084	2388	82abec64045aa19ed4e93e68bfd88ccd6fab0164b1ff1e2e7acb7e0000c15d51.exe	87
PID 2388 wrote to memory of 5084	2388	82abec64045aa19ed4e93e68bfd88ccd6fab0164b1ff1e2e7acb7e0000c15d51.exe	87
PID 2388 wrote to memory of 5084	2388	82abec64045aa19ed4e93e68bfd88ccd6fab0164b1ff1e2e7acb7e0000c15d51.exe	87
PID 2388 wrote to memory of 5084	2388	82abec64045aa19ed4e93e68bfd88ccd6fab0164b1ff1e2e7acb7e0000c15d51.exe	87
PID 2388 wrote to memory of 5084	2388	82abec64045aa19ed4e93e68bfd88ccd6fab0164b1ff1e2e7acb7e0000c15d51.exe	87
PID 2388 wrote to memory of 5084	2388	82abec64045aa19ed4e93e68bfd88ccd6fab0164b1ff1e2e7acb7e0000c15d51.exe	87
PID 5084 wrote to memory of 2404	5084	kat6BAA.tmp	89
PID 5084 wrote to memory of 2404	5084	kat6BAA.tmp	89
PID 5084 wrote to memory of 2404	5084	kat6BAA.tmp	89
PID 2404 wrote to memory of 512	2404	cmd.exe	91
PID 2404 wrote to memory of 512	2404	cmd.exe	91
PID 2404 wrote to memory of 512	2404	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\82abec64045aa19ed4e93e68bfd88ccd6fab0164b1ff1e2e7acb7e0000c15d51.exe
"C:\Users\Admin\AppData\Local\Temp\82abec64045aa19ed4e93e68bfd88ccd6fab0164b1ff1e2e7acb7e0000c15d51.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Users\Admin\AppData\Local\Temp\kat6BAA.tmp
  C:\Users\Admin\AppData\Local\Temp\kat6BAA.tmp
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:5084
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat6BAA.tmp" & rd /s /q "C:\ProgramData\JDBGHIIDAECB" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2404
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      Delays execution with timeout.exe
      PID:512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\kat6BAA.tmp

Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/2388-0-0x0000000000810000-0x0000000000811000-memory.dmp

Filesize
4KB

Download
memory/2388-1-0x0000000003CF0000-0x0000000003E00000-memory.dmp

Filesize
1.1MB

Download
memory/2388-9-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/5084-8-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/5084-10-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/5084-4-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/5084-11-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/5084-12-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/5084-13-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/5084-14-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/5084-17-0x0000000000400000-0x0000000000648000-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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Downloads