71c645b58cf6bd0d7919901fdd9c3654d5ec269c4678c2e58726585c3bf9612a

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
21/05/2024, 13:35

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General

Target

wallpaper.bat.exe
Size

97KB
MD5

2b27ae48cb717f92fec9d4c62f9b058a
SHA1

6ba23ca2620ae39dccdcdce947db7c3d229c939a
SHA256

71c645b58cf6bd0d7919901fdd9c3654d5ec269c4678c2e58726585c3bf9612a
SHA512

5bbadcede2f96beeb4a46e82d7a44ec559ff8271ca0495bb5b9c4a0e6270203da43d9dc277e6b3c88c93edecab980a71990f2878233a9d2b212e4072c483270e
SSDEEP

1536:Y2Y0VNblnigen1FQGpaika1PASjg/oCRNd+FXIhUBZ:Y23rbZi/8GprF3jg/oMNd4I+f

Score

1^/10

Malware Config

Signatures

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4272 wrote to memory of 4324	4272	wallpaper.bat.exe	84
PID 4272 wrote to memory of 4324	4272	wallpaper.bat.exe	84
PID 4272 wrote to memory of 4324	4272	wallpaper.bat.exe	84
PID 4324 wrote to memory of 4172	4324	cmd.exe	85
PID 4324 wrote to memory of 4172	4324	cmd.exe	85
PID 4324 wrote to memory of 4172	4324	cmd.exe	85
PID 4272 wrote to memory of 1696	4272	wallpaper.bat.exe	86
PID 4272 wrote to memory of 1696	4272	wallpaper.bat.exe	86
PID 4272 wrote to memory of 1696	4272	wallpaper.bat.exe	86
PID 4272 wrote to memory of 644	4272	wallpaper.bat.exe	87
PID 4272 wrote to memory of 644	4272	wallpaper.bat.exe	87
PID 4272 wrote to memory of 644	4272	wallpaper.bat.exe	87
PID 4272 wrote to memory of 3160	4272	wallpaper.bat.exe	88
PID 4272 wrote to memory of 3160	4272	wallpaper.bat.exe	88
PID 4272 wrote to memory of 3160	4272	wallpaper.bat.exe	88
PID 4272 wrote to memory of 912	4272	wallpaper.bat.exe	89
PID 4272 wrote to memory of 912	4272	wallpaper.bat.exe	89
PID 4272 wrote to memory of 912	4272	wallpaper.bat.exe	89
PID 912 wrote to memory of 3368	912	cmd.exe	90
PID 912 wrote to memory of 3368	912	cmd.exe	90
PID 912 wrote to memory of 3368	912	cmd.exe	90
PID 4272 wrote to memory of 3120	4272	wallpaper.bat.exe	91
PID 4272 wrote to memory of 3120	4272	wallpaper.bat.exe	91
PID 4272 wrote to memory of 3120	4272	wallpaper.bat.exe	91
PID 4272 wrote to memory of 1236	4272	wallpaper.bat.exe	92
PID 4272 wrote to memory of 1236	4272	wallpaper.bat.exe	92
PID 4272 wrote to memory of 1236	4272	wallpaper.bat.exe	92
PID 4272 wrote to memory of 4632	4272	wallpaper.bat.exe	93
PID 4272 wrote to memory of 4632	4272	wallpaper.bat.exe	93
PID 4272 wrote to memory of 4632	4272	wallpaper.bat.exe	93
PID 4272 wrote to memory of 4372	4272	wallpaper.bat.exe	94
PID 4272 wrote to memory of 4372	4272	wallpaper.bat.exe	94
PID 4272 wrote to memory of 4372	4272	wallpaper.bat.exe	94

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3368	attrib.exe

C:\Users\Admin\AppData\Local\Temp\wallpaper.bat.exe
"C:\Users\Admin\AppData\Local\Temp\wallpaper.bat.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4272
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c mode con:cols=0120 lines=0030
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4324
- - C:\Windows\SysWOW64\mode.com
    mode con:cols=0120 lines=0030
    3⤵
    PID:4172
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c title wallpaper
  2⤵
  PID:1696
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c if not exist "C:\Users\Admin\AppData\Local\Temp\myfiles" mkdir "C:\Users\Admin\AppData\Local\Temp\myfiles"
  2⤵
  PID:644
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c if not exist "C:\Users\Admin\AppData\Local\Temp\wtmpd" mkdir "C:\Users\Admin\AppData\Local\Temp\wtmpd"
  2⤵
  PID:3160
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c attrib +h C:\Users\Admin\AppData\Local\Temp\wtmpd
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:912
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h C:\Users\Admin\AppData\Local\Temp\wtmpd
    3⤵
    - Views/modifies file attributes
    PID:3368
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c echo:0>C:\Users\Admin\AppData\Local\Temp\i6.t
  2⤵
  PID:3120
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\i6.bat
  2⤵
  PID:1236
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c
  2⤵
  PID:4632
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c pause
  2⤵
  PID:4372

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\i6.bat

Filesize
173B

MD5
0f8f70e88009593eefaa155a8e31b1d6

SHA1
eabcc3f2135e0919e9456da0a4b1084f3382d4b6

SHA256
941c169c07670650fc6c6148c1cae068b69bac209e05010594e164aafc7cdf8b

SHA512
94df468b963f3c9d133a25e1ffa57039fac01fe960f0f738552ca6440e6242ff48d0b410fe70dd05a62e4842c925c9f2b0220ca9eb9cb4ff5490ada443c9a750

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C:\Users\Admin\AppData\Local\Temp\i6.t

Filesize
3B

MD5
a5ea0ad9260b1550a14cc58d2c39b03d

SHA1
f0aedf295071ed34ab8c6a7692223d22b6a19841

SHA256
f1b2f662800122bed0ff255693df89c4487fbdcf453d3524a42d4ec20c3d9c04

SHA512
7c735c613ece191801114785c1ee26a0485cbf1e8ee2c3b85ba1ad290ef75eec9fede5e1a5dc26d504701f3542e6b6457818f4c1d62448d0db40d5f35c357d74

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