3f292af40ab69396b241af706e4a0573800ffabfd20d25f46ae04752912c150f

Analysis

max time kernel
7s
max time network
11s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/02/2024, 06:34

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Reason

Machine shutdown

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General

Target

a31ef9f516330e4b08bb800e815987aa.exe
Size

60KB
MD5

a31ef9f516330e4b08bb800e815987aa
SHA1

d0cfda0e27f6c86545182c06439000dcc07abe0d
SHA256

3f292af40ab69396b241af706e4a0573800ffabfd20d25f46ae04752912c150f
SHA512

4296984bcb53fe22ace2c309e1dd012f766c7d060042f21d66e7ad746cc76e43a6151c9daf47c5325b744cf2425aa6c97d6ab534575242a949db749fbac5381e
SSDEEP

1536:ZIeA7SppGJYwqqJc1f/oZQW7lQKdf0o+TBYQ5:SeA7Sptw3JAfmX6VYq

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2880	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\1987311981 = "C:\\Users\\Admin\\1987311981.exe"	reg.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1556	a31ef9f516330e4b08bb800e815987aa.exe
Token: SeShutdownPrivilege	2820	shutdown.exe
Token: SeRemoteShutdownPrivilege	2820	shutdown.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1556 wrote to memory of 1508	1556	a31ef9f516330e4b08bb800e815987aa.exe	28
PID 1556 wrote to memory of 1508	1556	a31ef9f516330e4b08bb800e815987aa.exe	28
PID 1556 wrote to memory of 1508	1556	a31ef9f516330e4b08bb800e815987aa.exe	28
PID 1556 wrote to memory of 1508	1556	a31ef9f516330e4b08bb800e815987aa.exe	28
PID 1508 wrote to memory of 2296	1508	cmd.exe	30
PID 1508 wrote to memory of 2296	1508	cmd.exe	30
PID 1508 wrote to memory of 2296	1508	cmd.exe	30
PID 1508 wrote to memory of 2296	1508	cmd.exe	30
PID 1556 wrote to memory of 2820	1556	a31ef9f516330e4b08bb800e815987aa.exe	31
PID 1556 wrote to memory of 2820	1556	a31ef9f516330e4b08bb800e815987aa.exe	31
PID 1556 wrote to memory of 2820	1556	a31ef9f516330e4b08bb800e815987aa.exe	31
PID 1556 wrote to memory of 2820	1556	a31ef9f516330e4b08bb800e815987aa.exe	31
PID 1556 wrote to memory of 2880	1556	a31ef9f516330e4b08bb800e815987aa.exe	33
PID 1556 wrote to memory of 2880	1556	a31ef9f516330e4b08bb800e815987aa.exe	33
PID 1556 wrote to memory of 2880	1556	a31ef9f516330e4b08bb800e815987aa.exe	33
PID 1556 wrote to memory of 2880	1556	a31ef9f516330e4b08bb800e815987aa.exe	33

C:\Users\Admin\AppData\Local\Temp\a31ef9f516330e4b08bb800e815987aa.exe
"C:\Users\Admin\AppData\Local\Temp\a31ef9f516330e4b08bb800e815987aa.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1556
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 1987311981 /t REG_SZ /d "%userprofile%\1987311981.exe" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1508
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 1987311981 /t REG_SZ /d "C:\Users\Admin\1987311981.exe" /f
    3⤵
    - Adds Run key to start application
    PID:2296
- C:\Windows\SysWOW64\shutdown.exe
  "C:\Windows\System32\shutdown.exe" /r /f /t 3
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A31EF9~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2880

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:1800

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:2956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1556-0-0x0000000000290000-0x0000000000297000-memory.dmp

Filesize
28KB

Download
memory/1556-2-0x0000000000D80000-0x0000000000D9E000-memory.dmp

Filesize
120KB

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memory/1800-4-0x00000000029C0000-0x00000000029C1000-memory.dmp

Filesize
4KB

Download
memory/2956-5-0x00000000027E0000-0x00000000027E1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads