551635faabad2413c7a6971d45d3d8c40f00118d19ec82c747312ee21cff730f

Analysis

max time kernel
140s
max time network
117s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27-01-2024 16:19

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General

Target

7ab49522641d18540a3d53e399ca707c.exe
Size

43KB
MD5

7ab49522641d18540a3d53e399ca707c
SHA1

708783f71f85d0e8b17004fd9f847f8d37fa6764
SHA256

551635faabad2413c7a6971d45d3d8c40f00118d19ec82c747312ee21cff730f
SHA512

6abfbedf8bd148688ecb0a6c3ebd631f553055a3319a6b438db51edaab0dcd369bb3ea16088c0e4592c9885ac920359de1407c83f9635273ff00e3bccb110a9f
SSDEEP

768:ooaWpdp2wK/rhBNn1kLSvhxrShFStVrhJifXNko/BHpJ8oMkNYzMHhCZTon:oep2z/tBN1karShFStVrQWspiopNYoHy

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "userinit.exe,C:\\Windows\\system32\\ntos.exe,"	7ab49522641d18540a3d53e399ca707c.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ntos.exe	7ab49522641d18540a3d53e399ca707c.exe
File created	C:\Windows\SysWOW64\ntos.exe	7ab49522641d18540a3d53e399ca707c.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1948	7ab49522641d18540a3d53e399ca707c.exe
1948	7ab49522641d18540a3d53e399ca707c.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1948	7ab49522641d18540a3d53e399ca707c.exe

C:\Users\Admin\AppData\Local\Temp\7ab49522641d18540a3d53e399ca707c.exe
"C:\Users\Admin\AppData\Local\Temp\7ab49522641d18540a3d53e399ca707c.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1948-0-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/1948-6-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/1948-1-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download