674e91e0c3a04ceb11086fd104774bf5dc9056b2b9804cdf82fa4b8042c22ef6

Analysis

max time kernel
10s
max time network
12s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
23-10-2024 07:25

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Reason

Machine shutdown

Report Analysis Logs

General

Target

aaaa/wiper.exe
Size

2.4MB
MD5

ed5815ddad8188c198e0e52114173cb6
SHA1

4a0b8c5fac5820a410670c01f41912094d7a5134
SHA256

63a0a75c6b2e4bf8582578a1da1daeeb9d713dafbc2dbb690fefd84fd05994fa
SHA512

fab3129ee8e1aaa19006c09757ef4eb2af4af58eec978ee2ab8a18ae848affc871e522b47d4f59314b15978c88255da9198639f74343f24da2550eff3ff9db3d
SSDEEP

49152:TyKnmL7yc3OaL+rb/TnvO90d7HjmAFd4A64nsfJLSKYgy2YgDgvrAD1GYUI8NEVN:2N3OaFZEEV/eL2

Score

6^/10

bootkit persistence

Malware Config

Signatures

Drops desktop.ini file(s) 26 IoCs

description	ioc	Process
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	wiper.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	wiper.exe
File opened for modification	C:\Users\Public\Recorded TV\Sample Media\desktop.ini	wiper.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	wiper.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	wiper.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	wiper.exe
File opened for modification	C:\Users\Public\Downloads\desktop.ini	wiper.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	wiper.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	wiper.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	wiper.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	wiper.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	wiper.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	wiper.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	wiper.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	wiper.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	wiper.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	wiper.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	wiper.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	wiper.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	wiper.exe
File opened for modification	C:\Users\Public\desktop.ini	wiper.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	wiper.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	wiper.exe
File opened for modification	C:\Users\Public\Libraries\desktop.ini	wiper.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	wiper.exe
File opened for modification	C:\Users\Public\Recorded TV\desktop.ini	wiper.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	wiper.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1616	shutdown.exe
Token: SeRemoteShutdownPrivilege	1616	shutdown.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2476 wrote to memory of 1056	2476	wiper.exe	33
PID 2476 wrote to memory of 1056	2476	wiper.exe	33
PID 2476 wrote to memory of 1056	2476	wiper.exe	33
PID 1056 wrote to memory of 1616	1056	cmd.exe	34
PID 1056 wrote to memory of 1616	1056	cmd.exe	34
PID 1056 wrote to memory of 1616	1056	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\aaaa\wiper.exe
"C:\Users\Admin\AppData\Local\Temp\aaaa\wiper.exe"
1⤵
- Drops desktop.ini file(s)
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
PID:2476
- C:\Windows\system32\cmd.exe
  cmd.exe /c shutdown /S /T 0 /F
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1056
- - C:\Windows\system32\shutdown.exe
    shutdown /S /T 0 /F
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1616

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:1176

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:2076

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1176-925-0x0000000002D80000-0x0000000002D81000-memory.dmp

Filesize
4KB

Download
memory/2076-926-0x0000000002AB0000-0x0000000002AB1000-memory.dmp

Filesize
4KB

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Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads