stealc | 4adede428b6bdfba962baae89274a4697e33f70fa4ee9265f2d945e83e408265

General

Target

4adede428b6bdfba962baae89274a4697e33f70fa4ee9265f2d945e83e408265.exe
Size

419KB
MD5

4c632322bff9d2562ebf7783cc411db8
SHA1

f9a82d6aa7867b3e55907c8976ecdc564195ae8d
SHA256

4adede428b6bdfba962baae89274a4697e33f70fa4ee9265f2d945e83e408265
SHA512

f457d70ce849bd115c3e966f3460899cd84e8d062b0b68d33d47b536268972b977b155da017b8a3667d21cdc4eafeceb0ee1ba7693ebd18d66562883a36375d5
SSDEEP

6144:tm2uj3DmwiSj+Q/g2ygrx2h0jyG0clDM6oMYYub9hjD68u3h:cFL/9x2heyGdl997ub3+8u3

Score

10^/10

stealc default discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

default

C2

http://92.255.57.89

Attributes

url_path
/45c616e921a794b8.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	4adede428b6bdfba962baae89274a4697e33f70fa4ee9265f2d945e83e408265.exe

Executes dropped EXE 1 IoCs

pid	Process
2204	EB69.tmp.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4324	2204	WerFault.exe	86

System Location Discovery: System Language Discovery 1 TTPs 2 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	4adede428b6bdfba962baae89274a4697e33f70fa4ee9265f2d945e83e408265.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EB69.tmp.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	EB69.tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EB69.tmp.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2204	EB69.tmp.exe
2204	EB69.tmp.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
632	4adede428b6bdfba962baae89274a4697e33f70fa4ee9265f2d945e83e408265.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
632	4adede428b6bdfba962baae89274a4697e33f70fa4ee9265f2d945e83e408265.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 632 wrote to memory of 2204	632	4adede428b6bdfba962baae89274a4697e33f70fa4ee9265f2d945e83e408265.exe	86
PID 632 wrote to memory of 2204	632	4adede428b6bdfba962baae89274a4697e33f70fa4ee9265f2d945e83e408265.exe	86
PID 632 wrote to memory of 2204	632	4adede428b6bdfba962baae89274a4697e33f70fa4ee9265f2d945e83e408265.exe	86

C:\Users\Admin\AppData\Local\Temp\4adede428b6bdfba962baae89274a4697e33f70fa4ee9265f2d945e83e408265.exe
"C:\Users\Admin\AppData\Local\Temp\4adede428b6bdfba962baae89274a4697e33f70fa4ee9265f2d945e83e408265.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:632
- C:\Users\Admin\AppData\Local\Temp\EB69.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\EB69.tmp.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2204
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2204 -s 1304
    3⤵
    - Program crash
    PID:4324

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2204 -ip 2204
1⤵
PID:1380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\EB69.tmp.exe

Filesize
297KB

MD5
9d773e345dca0487c5654a92e6340baa

SHA1
6db3a6b22e452ff6ba55bb28d78dca1ea0fdea6a

SHA256
176ee771c395dc6748a4c973a15d53a5d68b9704989349a862714e4bdc0f9fda

SHA512
a8d94374d51141fd9654e960e6b1f28fc10ace788bee77db1efe01aa1a3020cb7f53230238b832be1ebadfa73076ac51157d1c18175abee0fe66566a3d6786ac

Download Submit
memory/632-1-0x0000000000950000-0x0000000000A50000-memory.dmp

Filesize
1024KB

Download
memory/632-2-0x0000000002440000-0x00000000024A5000-memory.dmp

Filesize
404KB

Download
memory/632-3-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/632-10-0x0000000000950000-0x0000000000A50000-memory.dmp

Filesize
1024KB

Download
memory/632-23-0x0000000002440000-0x00000000024A5000-memory.dmp

Filesize
404KB

Download
memory/632-22-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/632-26-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/632-31-0x0000000000400000-0x0000000000840000-memory.dmp

Filesize
4.2MB

Download
memory/2204-28-0x0000000000400000-0x0000000000822000-memory.dmp

Filesize
4.1MB

Download
memory/2204-29-0x0000000000400000-0x0000000000822000-memory.dmp

Filesize
4.1MB

Download
memory/2204-30-0x0000000000400000-0x0000000000822000-memory.dmp

Filesize
4.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads