stealc | ca2874cdb9525d52d0d21315d528bf6cf054b835cdbe96c4b5af103a590ea779

General

Target

d22d5aaf005a60e66ef3c3bff3054891.exe
Size

1.5MB
MD5

d22d5aaf005a60e66ef3c3bff3054891
SHA1

0a678dcc5b75e4a711bd703a307cc21378d50add
SHA256

ca2874cdb9525d52d0d21315d528bf6cf054b835cdbe96c4b5af103a590ea779
SHA512

37b98d11b71f74ebf19cb3e9aefb235670f430e4548da08459c6d71291f8c50d2d49c4c41e813a894abcf2e7a730e9603a2becc97c310973f10f53288fc7702f
SSDEEP

24576:IXc46Crf8fA3acHps+/qASfmBgXk/xrADOv1xvF87hso8bTTXo:IXl8I3HHO+SASagXkJr4MDkhs9g

Score

10^/10

stealc default discovery spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

default

C2

http://68.183.108.129

Attributes

url_path
/6259fdc16222e061.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
980	kat3D76.tmp

Loads dropped DLL 2 IoCs

pid	Process
980	kat3D76.tmp
980	kat3D76.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 1536 set thread context of 980	1536	d22d5aaf005a60e66ef3c3bff3054891.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	kat3D76.tmp
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat3D76.tmp

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
980	kat3D76.tmp
980	kat3D76.tmp
980	kat3D76.tmp
980	kat3D76.tmp

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1536 wrote to memory of 980	1536	d22d5aaf005a60e66ef3c3bff3054891.exe	86
PID 1536 wrote to memory of 980	1536	d22d5aaf005a60e66ef3c3bff3054891.exe	86
PID 1536 wrote to memory of 980	1536	d22d5aaf005a60e66ef3c3bff3054891.exe	86
PID 1536 wrote to memory of 980	1536	d22d5aaf005a60e66ef3c3bff3054891.exe	86
PID 1536 wrote to memory of 980	1536	d22d5aaf005a60e66ef3c3bff3054891.exe	86
PID 1536 wrote to memory of 980	1536	d22d5aaf005a60e66ef3c3bff3054891.exe	86
PID 1536 wrote to memory of 980	1536	d22d5aaf005a60e66ef3c3bff3054891.exe	86
PID 1536 wrote to memory of 980	1536	d22d5aaf005a60e66ef3c3bff3054891.exe	86

C:\Users\Admin\AppData\Local\Temp\d22d5aaf005a60e66ef3c3bff3054891.exe
"C:\Users\Admin\AppData\Local\Temp\d22d5aaf005a60e66ef3c3bff3054891.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1536
- C:\Users\Admin\AppData\Local\Temp\kat3D76.tmp
  C:\Users\Admin\AppData\Local\Temp\kat3D76.tmp
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:980

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

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
C:\Users\Admin\AppData\Local\Temp\kat3D76.tmp

Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/980-9-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/980-8-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/980-4-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/980-11-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/980-83-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/1536-0-0x0000000000850000-0x0000000000851000-memory.dmp

Filesize
4KB

Download
memory/1536-2-0x0000000002910000-0x0000000002A14000-memory.dmp

Filesize
1.0MB

Download
memory/1536-10-0x0000000000400000-0x0000000000582000-memory.dmp

Filesize
1.5MB

Download

Analysis

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