stealc | a62d5acae7355991b2d967c2d77aa329b3a9fe234bf2616748aaaf14196966b7

Analysis

max time kernel
148s
max time network
159s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
18/04/2024, 19:16

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General

Target

a62d5acae7355991b2d967c2d77aa329b3a9fe234bf2616748aaaf14196966b7.exe
Size

448KB
MD5

655d0f0862e457c2875d8f0620db2cfa
SHA1

19af0abd56db28a734e486900fcd68a235a251b3
SHA256

a62d5acae7355991b2d967c2d77aa329b3a9fe234bf2616748aaaf14196966b7
SHA512

befb7dbf0be18db82ab976e90021b90d05501b41d837e0e0f365753063dc9f0af0eaf73ae46d0ae80a3f9b1cad90a76a29b34c3b290dcb432e09c534c45e0f88
SSDEEP

6144:cLCoDvHwuTMwpQMLtK/mi6UN0p3JdRd8QKoy27EL4:cOoTHw0NXBGLV0pHjyL4

Score

10^/10

stealc stealer

Malware Config

Extracted

Family

stealc

http://185.172.128.209

Attributes

url_path
/3cd2b41cbde8fc9c.php

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
1088	u30s.0.exe

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
1388	1088	WerFault.exe	81

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3916 wrote to memory of 1088	3916	a62d5acae7355991b2d967c2d77aa329b3a9fe234bf2616748aaaf14196966b7.exe	81
PID 3916 wrote to memory of 1088	3916	a62d5acae7355991b2d967c2d77aa329b3a9fe234bf2616748aaaf14196966b7.exe	81
PID 3916 wrote to memory of 1088	3916	a62d5acae7355991b2d967c2d77aa329b3a9fe234bf2616748aaaf14196966b7.exe	81

C:\Users\Admin\AppData\Local\Temp\a62d5acae7355991b2d967c2d77aa329b3a9fe234bf2616748aaaf14196966b7.exe
"C:\Users\Admin\AppData\Local\Temp\a62d5acae7355991b2d967c2d77aa329b3a9fe234bf2616748aaaf14196966b7.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3916
- C:\Users\Admin\AppData\Local\Temp\u30s.0.exe
  "C:\Users\Admin\AppData\Local\Temp\u30s.0.exe"
  2⤵
  - Executes dropped EXE
  PID:1088
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 1120
    3⤵
    - Program crash
    PID:1388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1088 -ip 1088
1⤵
PID:2504

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\u30s.0.exe

Filesize
306KB

MD5
9e7bd4e6b0220bbb8c4068a02939e692

SHA1
92b8c83e84d6823bf4cf5238f368c27e5243241d

SHA256
a547ce72c56e28616970d53b15e05cf4532a20384cae7a72b8428789a48028ef

SHA512
7c1a0dcdcbeb988679ad24cbef85bd0b3f6c6c41c8699d506be3a1d6b0542fff0f6ec85eb53fe98278f787cd108771e2d168e2a9080327706edc629c41f57522

Download Submit
memory/1088-13-0x0000000000A30000-0x0000000000B30000-memory.dmp

Filesize
1024KB

Download
memory/1088-14-0x00000000009F0000-0x0000000000A17000-memory.dmp

Filesize
156KB

Download
memory/1088-15-0x0000000000400000-0x000000000084E000-memory.dmp

Filesize
4.3MB

Download
memory/1088-16-0x0000000000400000-0x000000000084E000-memory.dmp

Filesize
4.3MB

Download
memory/3916-1-0x00000000009E0000-0x0000000000AE0000-memory.dmp

Filesize
1024KB

Download
memory/3916-2-0x0000000002590000-0x00000000025FD000-memory.dmp

Filesize
436KB

Download
memory/3916-3-0x0000000000400000-0x0000000000872000-memory.dmp

Filesize
4.4MB

Download
memory/3916-17-0x0000000000400000-0x0000000000872000-memory.dmp

Filesize
4.4MB

Download
memory/3916-19-0x00000000009E0000-0x0000000000AE0000-memory.dmp

Filesize
1024KB

Download