stealc | 6dc8c0e5d209195925a1265b10a0390b57d6a19d645208a71692131a19181718

Analysis

max time kernel
128s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231025-en
resource tags

arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system
submitted
28/10/2023, 20:32

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General

Target

6dc8c0e5d209195925a1265b10a0390b57d6a19d645208a71692131a19181718.exe
Size

1.1MB
MD5

4c824267aa77b0c6caa3a723554aa4d4
SHA1

1b371a2f153881792934322bf2a76fd6dcc167ef
SHA256

6dc8c0e5d209195925a1265b10a0390b57d6a19d645208a71692131a19181718
SHA512

bf5a866f2945aee501cb7acfb3ddfda28e28792a64b063ced844e60b4fe6c439090b42027da2b873e5ba42b8bbf0264e3274339c75f8f70f347bdfbc52ba6a6e
SSDEEP

24576:8eh4biccwWcz+9N+gigYb484ecjxJjpZ/1A9:8j4EmZNI

Score

10^/10

stealc discovery stealer

Malware Config

Extracted

Family

stealc

http://tetromask.site

Attributes

url_path
/b5c586aec2e1004c.php

rc4.plain

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4960	2636	WerFault.exe	86
4700	2636	WerFault.exe	86

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	6dc8c0e5d209195925a1265b10a0390b57d6a19d645208a71692131a19181718.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	6dc8c0e5d209195925a1265b10a0390b57d6a19d645208a71692131a19181718.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2636	6dc8c0e5d209195925a1265b10a0390b57d6a19d645208a71692131a19181718.exe
2636	6dc8c0e5d209195925a1265b10a0390b57d6a19d645208a71692131a19181718.exe

C:\Users\Admin\AppData\Local\Temp\6dc8c0e5d209195925a1265b10a0390b57d6a19d645208a71692131a19181718.exe
"C:\Users\Admin\AppData\Local\Temp\6dc8c0e5d209195925a1265b10a0390b57d6a19d645208a71692131a19181718.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2636
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 1352
  2⤵
  - Program crash
  PID:4960
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 1420
  2⤵
  - Program crash
  PID:4700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2636 -ip 2636
1⤵
PID:1868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 2636 -ip 2636
1⤵
PID:4764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2636-0-0x0000000002190000-0x0000000002191000-memory.dmp

Filesize
4KB

Download
memory/2636-1-0x0000000002330000-0x000000000235B000-memory.dmp

Filesize
172KB

Download
memory/2636-2-0x0000000010000000-0x000000001022D000-memory.dmp

Filesize
2.2MB

Download
memory/2636-3-0x0000000002190000-0x0000000002191000-memory.dmp

Filesize
4KB

Download
memory/2636-4-0x0000000010000000-0x0000000010121000-memory.dmp

Filesize
1.1MB

Download
memory/2636-5-0x0000000010000000-0x000000001022D000-memory.dmp

Filesize
2.2MB

Download