stealc | db2a2d7c0772591199f7d3be76fd05031487f14b888efaa626d167397130c86b

Analysis

max time kernel
125s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20231130-en
resource tags

arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
submitted
02-12-2023 10:26

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General

Target

3b29f950968c3e659a25e4d65085b3c2337db74cfcc88fb7172971b1c3f13837.exe
Size

270KB
MD5

a2da34f16556914cfd1218970c90e451
SHA1

9ac22b21244777d2d2b9ae22fb551f6a0b54f4f0
SHA256

3b29f950968c3e659a25e4d65085b3c2337db74cfcc88fb7172971b1c3f13837
SHA512

58b9ec3b661c1c1f636a64ed42af507ac8aafd771eb597952b7e76ec35828d26f7b41c0c8f1a87d5e0ffd3d328ed773b7d8ab2497d1e0e806dd4552056bcf948
SSDEEP

6144:pR2kdN6l00Ul/YbyRVZXGoMFK0OK8yL7Ve:pRQ00Ul/YmGnFK0OvoQ

Score

10^/10

stealc discovery stealer

Malware Config

Extracted

Family

stealc

http://77.91.76.36

Attributes

url_path
/3886d2276f6914c4.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 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4584 3936 WerFault.exe 3b29f950968c3e659a25e4d65085b3c2337db74cfcc88fb7172971b1c3f13837.exe

pid	pid_target	process	target process
4584	3936	WerFault.exe	3b29f950968c3e659a25e4d65085b3c2337db74cfcc88fb7172971b1c3f13837.exe

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

Processes:

3b29f950968c3e659a25e4d65085b3c2337db74cfcc88fb7172971b1c3f13837.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	3b29f950968c3e659a25e4d65085b3c2337db74cfcc88fb7172971b1c3f13837.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	3b29f950968c3e659a25e4d65085b3c2337db74cfcc88fb7172971b1c3f13837.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

3b29f950968c3e659a25e4d65085b3c2337db74cfcc88fb7172971b1c3f13837.exe

pid	process
3936	3b29f950968c3e659a25e4d65085b3c2337db74cfcc88fb7172971b1c3f13837.exe
3936	3b29f950968c3e659a25e4d65085b3c2337db74cfcc88fb7172971b1c3f13837.exe

C:\Users\Admin\AppData\Local\Temp\3b29f950968c3e659a25e4d65085b3c2337db74cfcc88fb7172971b1c3f13837.exe
"C:\Users\Admin\AppData\Local\Temp\3b29f950968c3e659a25e4d65085b3c2337db74cfcc88fb7172971b1c3f13837.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3936 -s 1276
2⤵
- Program crash
PID:4584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3936 -ip 3936
1⤵
PID:4076

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/3936-1-0x0000000000970000-0x0000000000A70000-memory.dmp

Filesize
1024KB

Download
memory/3936-2-0x0000000000920000-0x000000000093B000-memory.dmp

Filesize
108KB

Download
memory/3936-3-0x0000000000400000-0x00000000007CC000-memory.dmp

Filesize
3.8MB

Download
memory/3936-4-0x0000000000400000-0x00000000007CC000-memory.dmp

Filesize
3.8MB

Download
memory/3936-6-0x0000000000970000-0x0000000000A70000-memory.dmp

Filesize
1024KB

Download
memory/3936-7-0x0000000000400000-0x00000000007CC000-memory.dmp

Filesize
3.8MB

Download
memory/3936-9-0x0000000000400000-0x00000000007CC000-memory.dmp

Filesize
3.8MB

Download
memory/3936-11-0x0000000000400000-0x00000000007CC000-memory.dmp

Filesize
3.8MB

Download
memory/3936-13-0x0000000000400000-0x00000000007CC000-memory.dmp

Filesize
3.8MB

Download