stealc | dbced253c8e99ea2d383c7e5371fe5f62fed611d7619dd0d61d837bd8162d102

General

Target

dbced253c8e99ea2d383c7e5371fe5f62fed611d7619dd0d61d837bd8162d102.exe
Size

2.4MB
MD5

30a4b955f3b5c8e828f6eef25f4b9592
SHA1

1ff85cff1ffd7e49e85fa2e164b2a2d722cc18bc
SHA256

dbced253c8e99ea2d383c7e5371fe5f62fed611d7619dd0d61d837bd8162d102
SHA512

89feb548fc5f0f1ebaf5d1db7f89f1f42b65c6c068dcbf53ec81ac5c9958aa415cd5f6ef936c858af41d5d5f784b1be479fc474ef68bd93093e2f966fda5ea55
SSDEEP

49152:jxIRJF1HL+VdX68kUWJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dWtIuoITsdZ

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Signatures

Detect Vidar Stealer 8 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/3200-1-0x00000000040C0000-0x0000000004209000-memory.dmp	family_vidar_v7
behavioral2/memory/4320-4-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4320-8-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4320-10-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4320-16-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4320-17-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4320-34-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4320-35-0x0000000000400000-0x0000000000646000-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

Processes:

kat48E0.tmp

pid process

4320 kat48E0.tmp
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
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

pid	process
4320	kat48E0.tmp

Suspicious use of SetThreadContext 1 IoCs

Processes:

dbced253c8e99ea2d383c7e5371fe5f62fed611d7619dd0d61d837bd8162d102.exe

description	pid	process	target process
PID 3200 set thread context of 4320	3200	dbced253c8e99ea2d383c7e5371fe5f62fed611d7619dd0d61d837bd8162d102.exe	kat48E0.tmp

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

Processes:

kat48E0.tmp

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat48E0.tmp
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

kat48E0.tmp

pid process

4320 kat48E0.tmp
4320 kat48E0.tmp

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat48E0.tmp

pid	process
4320	kat48E0.tmp
4320	kat48E0.tmp

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

dbced253c8e99ea2d383c7e5371fe5f62fed611d7619dd0d61d837bd8162d102.exe

description	pid	process	target process
PID 3200 wrote to memory of 4320	3200	dbced253c8e99ea2d383c7e5371fe5f62fed611d7619dd0d61d837bd8162d102.exe	kat48E0.tmp
PID 3200 wrote to memory of 4320	3200	dbced253c8e99ea2d383c7e5371fe5f62fed611d7619dd0d61d837bd8162d102.exe	kat48E0.tmp
PID 3200 wrote to memory of 4320	3200	dbced253c8e99ea2d383c7e5371fe5f62fed611d7619dd0d61d837bd8162d102.exe	kat48E0.tmp
PID 3200 wrote to memory of 4320	3200	dbced253c8e99ea2d383c7e5371fe5f62fed611d7619dd0d61d837bd8162d102.exe	kat48E0.tmp
PID 3200 wrote to memory of 4320	3200	dbced253c8e99ea2d383c7e5371fe5f62fed611d7619dd0d61d837bd8162d102.exe	kat48E0.tmp
PID 3200 wrote to memory of 4320	3200	dbced253c8e99ea2d383c7e5371fe5f62fed611d7619dd0d61d837bd8162d102.exe	kat48E0.tmp
PID 3200 wrote to memory of 4320	3200	dbced253c8e99ea2d383c7e5371fe5f62fed611d7619dd0d61d837bd8162d102.exe	kat48E0.tmp
PID 3200 wrote to memory of 4320	3200	dbced253c8e99ea2d383c7e5371fe5f62fed611d7619dd0d61d837bd8162d102.exe	kat48E0.tmp

C:\Users\Admin\AppData\Local\Temp\dbced253c8e99ea2d383c7e5371fe5f62fed611d7619dd0d61d837bd8162d102.exe
"C:\Users\Admin\AppData\Local\Temp\dbced253c8e99ea2d383c7e5371fe5f62fed611d7619dd0d61d837bd8162d102.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3200
- C:\Users\Admin\AppData\Local\Temp\kat48E0.tmp
  C:\Users\Admin\AppData\Local\Temp\kat48E0.tmp
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:4320

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

2

T1012

System Information Discovery

1

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\kat48E0.tmp

Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/3200-0-0x00000000024E0000-0x00000000024E1000-memory.dmp

Filesize
4KB

Download
memory/3200-1-0x00000000040C0000-0x0000000004209000-memory.dmp

Filesize
1.3MB

Download
memory/3200-9-0x0000000000400000-0x0000000000678000-memory.dmp

Filesize
2.5MB

Download
memory/4320-4-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4320-8-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4320-10-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4320-16-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4320-17-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4320-19-0x00000000193D0000-0x000000001962F000-memory.dmp

Filesize
2.4MB

Download
memory/4320-34-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4320-35-0x0000000000400000-0x0000000000646000-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