c41b90a7cb696b4be6ef4dbeca736785468249eb226f1dd7e4ae397bf87dd5e8

Analysis

max time kernel
135s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
30/03/2023, 07:32

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General

Target
55f520a08d39b31fcb6a33ecc9fc58a4.exe
Size 4.3MB
Sample230330-jczgmabe49
SHA256 c41b90a7cb696b4be6ef4dbeca736785468249eb226f1dd7e4ae397bf87dd5e8
MD5 55f520a08d39b31fcb6a33ecc9fc58a4
SHA1 1331a1aaeee194126b3142558ea7511699ddf339
SHA512 fd602223117d7a7005926694e58a7fdfccfe1e7d1589f99add3d151eab818e837ad87eb60e5fbcb926fd329de548e787410e28ea7fd5bb16fc870099e4a63f5d
SSDEEP 98304:mbK+yhQ0J5E1bzc+1p8e33V73XvENGBSiBXiHWbdj0/NYT:m2+yhnClwU3dvFsiBy2bdj0q
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

spyware stealer upx

Malware Config

Signatures

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3336-133-0x00000000009C0000-0x0000000001821000-memory.dmp	upx
behavioral2/memory/3336-134-0x00000000009C0000-0x0000000001821000-memory.dmp	upx

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3336 wrote to memory of 1712	3336	55f520a08d39b31fcb6a33ecc9fc58a4.exe	85
PID 3336 wrote to memory of 1712	3336	55f520a08d39b31fcb6a33ecc9fc58a4.exe	85
PID 1712 wrote to memory of 4840	1712	cmd.exe	87
PID 1712 wrote to memory of 4840	1712	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\55f520a08d39b31fcb6a33ecc9fc58a4.exe
"C:\Users\Admin\AppData\Local\Temp\55f520a08d39b31fcb6a33ecc9fc58a4.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3336
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\Users\Admin\AppData\Local\Temp\55f520a08d39b31fcb6a33ecc9fc58a4.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1712
- - C:\Windows\system32\choice.exe
    choice /C Y /N /D Y /T 0
    3⤵
    PID:4840

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3336-133-0x00000000009C0000-0x0000000001821000-memory.dmp

Download

memory/3336-134-0x00000000009C0000-0x0000000001821000-memory.dmp