stealc | fe7c9c900df7c51f53243053dcf41ee781d284206742952aea704735d8d4a198

General

Target

fe7c9c900df7c51f53243053dcf41ee781d284206742952aea704735d8d4a198.exe
Size

420KB
MD5

26ceb3d9dcc1821192b39eea6832d51d
SHA1

d22dae62f3d122acaec58a03550d5d99a9b7cfb4
SHA256

fe7c9c900df7c51f53243053dcf41ee781d284206742952aea704735d8d4a198
SHA512

2dd773c7afa7cb46c1f94d195e9b542a5e8ec150b608d8dcde0aa60f7aff15ea0fced33fe647519cca91ada905dce14576a8b2b84bc0c9ecfc6f362a3cdccda8
SSDEEP

12288:+kmdgMiHbQuCIu+Sp+tXcyZpCxFzR7DB5:zmAHq+Sp+RbpCrF7V

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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	fe7c9c900df7c51f53243053dcf41ee781d284206742952aea704735d8d4a198.exe

Executes dropped EXE 1 IoCs

pid	Process
3028	BC89.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
3900	3028	WerFault.exe	87

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	fe7c9c900df7c51f53243053dcf41ee781d284206742952aea704735d8d4a198.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BC89.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	BC89.tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	BC89.tmp.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3028	BC89.tmp.exe
3028	BC89.tmp.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3332	fe7c9c900df7c51f53243053dcf41ee781d284206742952aea704735d8d4a198.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3332	fe7c9c900df7c51f53243053dcf41ee781d284206742952aea704735d8d4a198.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3332 wrote to memory of 3028	3332	fe7c9c900df7c51f53243053dcf41ee781d284206742952aea704735d8d4a198.exe	87
PID 3332 wrote to memory of 3028	3332	fe7c9c900df7c51f53243053dcf41ee781d284206742952aea704735d8d4a198.exe	87
PID 3332 wrote to memory of 3028	3332	fe7c9c900df7c51f53243053dcf41ee781d284206742952aea704735d8d4a198.exe	87

C:\Users\Admin\AppData\Local\Temp\fe7c9c900df7c51f53243053dcf41ee781d284206742952aea704735d8d4a198.exe
"C:\Users\Admin\AppData\Local\Temp\fe7c9c900df7c51f53243053dcf41ee781d284206742952aea704735d8d4a198.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:3332
- C:\Users\Admin\AppData\Local\Temp\BC89.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\BC89.tmp.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:3028
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3028 -s 1304
    3⤵
    - Program crash
    PID:3900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3028 -ip 3028
1⤵
PID:4476

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\BC89.tmp.exe

Filesize
297KB

MD5
9d773e345dca0487c5654a92e6340baa

SHA1
6db3a6b22e452ff6ba55bb28d78dca1ea0fdea6a

SHA256
176ee771c395dc6748a4c973a15d53a5d68b9704989349a862714e4bdc0f9fda

SHA512
a8d94374d51141fd9654e960e6b1f28fc10ace788bee77db1efe01aa1a3020cb7f53230238b832be1ebadfa73076ac51157d1c18175abee0fe66566a3d6786ac

Download Submit
memory/3028-28-0x0000000000400000-0x0000000000822000-memory.dmp

Filesize
4.1MB

Download
memory/3028-31-0x0000000000400000-0x0000000000822000-memory.dmp

Filesize
4.1MB

Download
memory/3028-30-0x0000000000400000-0x0000000000822000-memory.dmp

Filesize
4.1MB

Download
memory/3028-29-0x0000000000400000-0x0000000000822000-memory.dmp

Filesize
4.1MB

Download
memory/3332-10-0x0000000000A60000-0x0000000000B60000-memory.dmp

Filesize
1024KB

Download
memory/3332-21-0x0000000000400000-0x0000000000841000-memory.dmp

Filesize
4.3MB

Download
memory/3332-26-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/3332-22-0x00000000009A0000-0x0000000000A05000-memory.dmp

Filesize
404KB

Download
memory/3332-1-0x0000000000A60000-0x0000000000B60000-memory.dmp

Filesize
1024KB

Download
memory/3332-3-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/3332-2-0x00000000009A0000-0x0000000000A05000-memory.dmp

Filesize
404KB

Download
memory/3332-32-0x0000000000400000-0x0000000000841000-memory.dmp

Filesize
4.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads