0732e73d481ef2f0e87eddda5f2007980b029dfee54e95b515d4681ccdcb9995

Analysis

max time kernel
83s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
01/04/2023, 18:51

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General

Target

tmp.exe
Size

607KB
MD5

88d4b33b0854a8e8855e83346db43ed0
SHA1

614062b3c025aca295d894d686c06d6d87e503ab
SHA256

0732e73d481ef2f0e87eddda5f2007980b029dfee54e95b515d4681ccdcb9995
SHA512

d8e425eb5888d856d43bdc77c60a4df59da00f2c6fa5d539e985c15a475d97227c98b0f2d2d78d7ffb1a10a1c86d0cbef08c3cf21f0c7903eb912680860a80b9
SSDEEP

6144:GM+FB2QUmqzxBL6i0pqe3O5LLFnbHaGvpoMOsYOl0WXVKFE:GM8kFmwr+igqe3EHrHrYOl0WXVKC

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1636	Microsoft Defender Antivirus.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
11	ip-api.com

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Microsoft Defender Antivirus\Microsoft Defender Antivirus.exe	tmp.exe
File opened for modification	C:\Windows\SysWOW64\Microsoft Defender Antivirus\Microsoft Defender Antivirus.exe	tmp.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
4828	schtasks.exe
2484	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	620	tmp.exe
Token: SeDebugPrivilege	1636	Microsoft Defender Antivirus.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 620 wrote to memory of 4828	620	tmp.exe	84
PID 620 wrote to memory of 4828	620	tmp.exe	84
PID 620 wrote to memory of 1636	620	tmp.exe	86
PID 620 wrote to memory of 1636	620	tmp.exe	86
PID 1636 wrote to memory of 2484	1636	Microsoft Defender Antivirus.exe	87
PID 1636 wrote to memory of 2484	1636	Microsoft Defender Antivirus.exe	87

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:620
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "Microsoft Defender Antivirus" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\tmp.exe" /rl HIGHEST /f
  2⤵
  - Creates scheduled task(s)
  PID:4828
- C:\Windows\SysWOW64\Microsoft Defender Antivirus\Microsoft Defender Antivirus.exe
  "C:\Windows\SysWOW64\Microsoft Defender Antivirus\Microsoft Defender Antivirus.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1636
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "Microsoft Defender Antivirus" /sc ONLOGON /tr "C:\Windows\SysWOW64\Microsoft Defender Antivirus\Microsoft Defender Antivirus.exe" /rl HIGHEST /f
    3⤵
    - Creates scheduled task(s)
    PID:2484

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\Microsoft Defender Antivirus\Microsoft Defender Antivirus.exe

Filesize
607KB

MD5
88d4b33b0854a8e8855e83346db43ed0

SHA1
614062b3c025aca295d894d686c06d6d87e503ab

SHA256
0732e73d481ef2f0e87eddda5f2007980b029dfee54e95b515d4681ccdcb9995

SHA512
d8e425eb5888d856d43bdc77c60a4df59da00f2c6fa5d539e985c15a475d97227c98b0f2d2d78d7ffb1a10a1c86d0cbef08c3cf21f0c7903eb912680860a80b9

Download Submit
C:\Windows\SysWOW64\Microsoft Defender Antivirus\Microsoft Defender Antivirus.exe

Filesize
607KB

MD5
88d4b33b0854a8e8855e83346db43ed0

SHA1
614062b3c025aca295d894d686c06d6d87e503ab

SHA256
0732e73d481ef2f0e87eddda5f2007980b029dfee54e95b515d4681ccdcb9995

SHA512
d8e425eb5888d856d43bdc77c60a4df59da00f2c6fa5d539e985c15a475d97227c98b0f2d2d78d7ffb1a10a1c86d0cbef08c3cf21f0c7903eb912680860a80b9

Download Submit
memory/620-133-0x0000000000140000-0x000000000018A000-memory.dmp

Filesize
296KB

Download
memory/620-134-0x000000001C380000-0x000000001C390000-memory.dmp

Filesize
64KB

Download
memory/620-135-0x000000001C2E0000-0x000000001C2F2000-memory.dmp

Filesize
72KB

Download
memory/620-136-0x000000001C340000-0x000000001C37C000-memory.dmp

Filesize
240KB

Download
memory/1636-142-0x0000000001050000-0x0000000001060000-memory.dmp

Filesize
64KB

Download
memory/1636-143-0x0000000001050000-0x0000000001060000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads