stealc | 80b5db038716d49c30a2258b44e05090bb63e470c6bd5bc067958c0d3b3b73c2

General

Target

80b5db038716d49c30a2258b44e05090bb63e470c6bd5bc067958c0d3b3b73c2N.exe
Size

502KB
MD5

255aa859c24575b55d2476fc42ebfcf0
SHA1

d0b9d931ba49b12edf649179c3fee9db5d0e13b5
SHA256

80b5db038716d49c30a2258b44e05090bb63e470c6bd5bc067958c0d3b3b73c2
SHA512

5e2d5aa2a85456b849bb8788de6f539d0bfceb34404ba4eb33968351d3b082cbda3d131e06e19412ecf03c29dcc9dcb28befb4f5801a6f660624e34158b7f3ca
SSDEEP

12288:HKKbpydeHVh1nDVrJQ53MCcstcVjgUh4oan7rKo:HKMydipnpVQSstcrpC/x

Score

10^/10

stealc default credential_access discovery spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

default

C2

http://46.8.231.109

Attributes

url_path
/c4754d4f680ead72.php

Signatures

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

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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
1556	MSBuild.exe
1556	MSBuild.exe

Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3564 set thread context of 1556	3564	80b5db038716d49c30a2258b44e05090bb63e470c6bd5bc067958c0d3b3b73c2N.exe	83

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	80b5db038716d49c30a2258b44e05090bb63e470c6bd5bc067958c0d3b3b73c2N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MSBuild.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1556	MSBuild.exe
1556	MSBuild.exe
1556	MSBuild.exe
1556	MSBuild.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2964	cmd.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3564 wrote to memory of 1556	3564	80b5db038716d49c30a2258b44e05090bb63e470c6bd5bc067958c0d3b3b73c2N.exe	83
PID 3564 wrote to memory of 1556	3564	80b5db038716d49c30a2258b44e05090bb63e470c6bd5bc067958c0d3b3b73c2N.exe	83
PID 3564 wrote to memory of 1556	3564	80b5db038716d49c30a2258b44e05090bb63e470c6bd5bc067958c0d3b3b73c2N.exe	83
PID 3564 wrote to memory of 1556	3564	80b5db038716d49c30a2258b44e05090bb63e470c6bd5bc067958c0d3b3b73c2N.exe	83
PID 3564 wrote to memory of 1556	3564	80b5db038716d49c30a2258b44e05090bb63e470c6bd5bc067958c0d3b3b73c2N.exe	83
PID 3564 wrote to memory of 1556	3564	80b5db038716d49c30a2258b44e05090bb63e470c6bd5bc067958c0d3b3b73c2N.exe	83
PID 3564 wrote to memory of 1556	3564	80b5db038716d49c30a2258b44e05090bb63e470c6bd5bc067958c0d3b3b73c2N.exe	83
PID 3564 wrote to memory of 1556	3564	80b5db038716d49c30a2258b44e05090bb63e470c6bd5bc067958c0d3b3b73c2N.exe	83
PID 3564 wrote to memory of 1556	3564	80b5db038716d49c30a2258b44e05090bb63e470c6bd5bc067958c0d3b3b73c2N.exe	83
PID 1556 wrote to memory of 2964	1556	MSBuild.exe	87
PID 1556 wrote to memory of 2964	1556	MSBuild.exe	87
PID 1556 wrote to memory of 2964	1556	MSBuild.exe	87

C:\Users\Admin\AppData\Local\Temp\80b5db038716d49c30a2258b44e05090bb63e470c6bd5bc067958c0d3b3b73c2N.exe
"C:\Users\Admin\AppData\Local\Temp\80b5db038716d49c30a2258b44e05090bb63e470c6bd5bc067958c0d3b3b73c2N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3564
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1556
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c start "" "C:\ProgramData\AKEGIIJDGH.exe"
    3⤵
    - Checks computer location settings
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2964

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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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
memory/1556-1-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/1556-4-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/1556-3-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/1556-5-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1556-75-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/1556-76-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/3564-0-0x0000000000379000-0x000000000037A000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads