stealc | 67e2d5803b527df56d0c9cede90c29aeecfd0b3910d45fbd46c26e6cbf0e8a89

Analysis

max time kernel
121s
max time network
127s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
05/09/2024, 22:42

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General

Target
file.exe
Size 217KB
Sample240905-2mnf8ashlf
SHA256 67e2d5803b527df56d0c9cede90c29aeecfd0b3910d45fbd46c26e6cbf0e8a89
MD5 b81ac0bd6737adc5d296e9d86491d9f4
SHA1 d03ebb99ec66922afde8db9d215951cdc0efb4e1
SHA512 5894b140ec2e40b070a5d116d8d021aab9e675f1280924b9b6d9545d8b2c2dfeb96b6cc8ad60b396ebf6ef4b946aa76addbd2d15cf97e5248976394b8d6068ba
SSDEEP 6144:uU3UF1eC8Wi6Pu9phEjA0s63EPjjxnXUoM/AgvzEO:Kn8vr8PHEPjjxX6LvzEO
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

stealc default discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

default

http://46.8.231.109

Attributes

url_path
/c4754d4f680ead72.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2232 set thread context of 2532	2232	file.exe	31

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2520	2532	WerFault.exe	31

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	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2532	2232	file.exe	31
PID 2232 wrote to memory of 2532	2232	file.exe	31
PID 2232 wrote to memory of 2532	2232	file.exe	31
PID 2232 wrote to memory of 2532	2232	file.exe	31
PID 2232 wrote to memory of 2532	2232	file.exe	31
PID 2232 wrote to memory of 2532	2232	file.exe	31
PID 2232 wrote to memory of 2532	2232	file.exe	31
PID 2232 wrote to memory of 2532	2232	file.exe	31
PID 2232 wrote to memory of 2532	2232	file.exe	31
PID 2232 wrote to memory of 2532	2232	file.exe	31
PID 2232 wrote to memory of 2532	2232	file.exe	31
PID 2232 wrote to memory of 2532	2232	file.exe	31
PID 2232 wrote to memory of 2532	2232	file.exe	31
PID 2532 wrote to memory of 2520	2532	RegAsm.exe	32
PID 2532 wrote to memory of 2520	2532	RegAsm.exe	32
PID 2532 wrote to memory of 2520	2532	RegAsm.exe	32
PID 2532 wrote to memory of 2520	2532	RegAsm.exe	32

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2532
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2532 -s 252
    3⤵
    - Program crash
    PID:2520

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2232-0-0x0000000073F4E000-0x0000000073F4F000-memory.dmp

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memory/2232-1-0x0000000000240000-0x000000000027A000-memory.dmp

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memory/2232-16-0x0000000073F40000-0x000000007462E000-memory.dmp

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memory/2232-13-0x0000000073F40000-0x000000007462E000-memory.dmp

Download

memory/2532-15-0x0000000000400000-0x0000000000643000-memory.dmp

Download

memory/2532-3-0x0000000000400000-0x0000000000643000-memory.dmp

Download

memory/2532-4-0x0000000000400000-0x0000000000643000-memory.dmp

Download

memory/2532-12-0x0000000000400000-0x0000000000643000-memory.dmp

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memory/2532-5-0x0000000000400000-0x0000000000643000-memory.dmp

Download

memory/2532-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

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memory/2532-7-0x0000000000400000-0x0000000000643000-memory.dmp

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memory/2532-10-0x0000000000400000-0x0000000000643000-memory.dmp

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memory/2532-6-0x0000000000400000-0x0000000000643000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads