stealc | 02a01859a6636016393dec9c654cdcf811ad6cfbc205a5c8f56b150ceea2e3e6

Resubmissions

27/06/2024, 17:24

240627-vyvlcatflq 10

27/06/2024, 17:11

240627-vp9c5s1dqe 10

Analysis

max time kernel
291s
max time network
300s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
27/06/2024, 17:24

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General

Target

55d167d04ea6b44c36fb9b109589e2c8.exe
Size

1.5MB
MD5

55d167d04ea6b44c36fb9b109589e2c8
SHA1

148e280cb6744c208dcd8984eb3ec36ebae9d255
SHA256

02a01859a6636016393dec9c654cdcf811ad6cfbc205a5c8f56b150ceea2e3e6
SHA512

761a6230f6c876a6224b263cf4b52fa68866f97159fadf18b25f283f34b639629d8d98c599edf36402e689e19f67af13ff8c48c7ac70210b4a3a5862b50def80
SSDEEP

24576:IXc46Crf8fAdacHps+/qASfmBgXk/xrADOv1xvF87hso8bTTXo:IXl8IdHHO+SASagXkJr4MDkhs9g

Score

10^/10

stealc default discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

default

http://68.183.108.129

Attributes

url_path
/6259fdc16222e061.php

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
3568	kat7733.tmp

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 224 set thread context of 3568	224	55d167d04ea6b44c36fb9b109589e2c8.exe	74

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1040	3568	WerFault.exe	74

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	kat7733.tmp
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat7733.tmp

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3568	kat7733.tmp
3568	kat7733.tmp

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 224 wrote to memory of 3568	224	55d167d04ea6b44c36fb9b109589e2c8.exe	74
PID 224 wrote to memory of 3568	224	55d167d04ea6b44c36fb9b109589e2c8.exe	74
PID 224 wrote to memory of 3568	224	55d167d04ea6b44c36fb9b109589e2c8.exe	74
PID 224 wrote to memory of 3568	224	55d167d04ea6b44c36fb9b109589e2c8.exe	74
PID 224 wrote to memory of 3568	224	55d167d04ea6b44c36fb9b109589e2c8.exe	74
PID 224 wrote to memory of 3568	224	55d167d04ea6b44c36fb9b109589e2c8.exe	74
PID 224 wrote to memory of 3568	224	55d167d04ea6b44c36fb9b109589e2c8.exe	74
PID 224 wrote to memory of 3568	224	55d167d04ea6b44c36fb9b109589e2c8.exe	74

C:\Users\Admin\AppData\Local\Temp\55d167d04ea6b44c36fb9b109589e2c8.exe
"C:\Users\Admin\AppData\Local\Temp\55d167d04ea6b44c36fb9b109589e2c8.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:224
- C:\Users\Admin\AppData\Local\Temp\kat7733.tmp
  C:\Users\Admin\AppData\Local\Temp\kat7733.tmp
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:3568
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3568 -s 1200
    3⤵
    - Program crash
    PID:1040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\kat7733.tmp

Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/224-1-0x0000000003EB0000-0x0000000003FB4000-memory.dmp

Filesize
1.0MB

Download
memory/224-9-0x0000000000400000-0x0000000000582000-memory.dmp

Filesize
1.5MB

Download
memory/224-0-0x0000000000800000-0x0000000000801000-memory.dmp

Filesize
4KB

Download
memory/3568-8-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/3568-10-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/3568-4-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/3568-11-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/3568-13-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/3568-15-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/3568-17-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/3568-19-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/3568-21-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download