f05700c9cb3ee995d0b557716280c9e79c1f68ee6d57ce7a4f87b0ee4433fe29

Analysis

max time kernel
144s
max time network
179s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
24-11-2022 14:09

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General

Target

f05700c9cb3ee995d0b557716280c9e79c1f68ee6d57ce7a4f87b0ee4433fe29.exe
Size

375KB
MD5

83ccb5c523ac9743f9db41460fe8fcd2
SHA1

25b4f65c963cf5c8ddd5e283e337be74d394768c
SHA256

f05700c9cb3ee995d0b557716280c9e79c1f68ee6d57ce7a4f87b0ee4433fe29
SHA512

8e748c29b7097dcd56f5b7b92d7fcc104d9c11c349f268d258e9b2c6210e2d6bafda2d61b3d97fbe8c2e3b6caffe9b7b995cfee2b3240014029a6775d7af0e99
SSDEEP

6144:rvrQtqccMhb9VxU/aido6WXjQ0WU7+OLBOZYJmQs+gvUUudBfa4AtzqJVHnqRkY4:7cEcc69VixU7+OUZYsmAUUui4azq+iv9

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4760	asg.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
2	ip-api.com

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\SubDir\asg.exe	f05700c9cb3ee995d0b557716280c9e79c1f68ee6d57ce7a4f87b0ee4433fe29.exe
File opened for modification	C:\Windows\SysWOW64\SubDir\asg.exe	f05700c9cb3ee995d0b557716280c9e79c1f68ee6d57ce7a4f87b0ee4433fe29.exe
File opened for modification	C:\Windows\SysWOW64\SubDir\asg.exe	asg.exe
File opened for modification	C:\Windows\SysWOW64\SubDir	asg.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
4180	schtasks.exe
2744	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4200	f05700c9cb3ee995d0b557716280c9e79c1f68ee6d57ce7a4f87b0ee4433fe29.exe
Token: SeDebugPrivilege	4760	asg.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4760	asg.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4200 wrote to memory of 4180	4200	f05700c9cb3ee995d0b557716280c9e79c1f68ee6d57ce7a4f87b0ee4433fe29.exe	67
PID 4200 wrote to memory of 4180	4200	f05700c9cb3ee995d0b557716280c9e79c1f68ee6d57ce7a4f87b0ee4433fe29.exe	67
PID 4200 wrote to memory of 4760	4200	f05700c9cb3ee995d0b557716280c9e79c1f68ee6d57ce7a4f87b0ee4433fe29.exe	69
PID 4200 wrote to memory of 4760	4200	f05700c9cb3ee995d0b557716280c9e79c1f68ee6d57ce7a4f87b0ee4433fe29.exe	69
PID 4760 wrote to memory of 2744	4760	asg.exe	70
PID 4760 wrote to memory of 2744	4760	asg.exe	70

C:\Users\Admin\AppData\Local\Temp\f05700c9cb3ee995d0b557716280c9e79c1f68ee6d57ce7a4f87b0ee4433fe29.exe
"C:\Users\Admin\AppData\Local\Temp\f05700c9cb3ee995d0b557716280c9e79c1f68ee6d57ce7a4f87b0ee4433fe29.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4200
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "WSUS Update Client" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\f05700c9cb3ee995d0b557716280c9e79c1f68ee6d57ce7a4f87b0ee4433fe29.exe" /rl HIGHEST /f
  2⤵
  - Creates scheduled task(s)
  PID:4180
- C:\Windows\SysWOW64\SubDir\asg.exe
  "C:\Windows\SysWOW64\SubDir\asg.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4760
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "WSUS Update Client" /sc ONLOGON /tr "C:\Windows\SysWOW64\SubDir\asg.exe" /rl HIGHEST /f
    3⤵
    - Creates scheduled task(s)
    PID:2744

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\SubDir\asg.exe

Filesize
375KB

MD5
83ccb5c523ac9743f9db41460fe8fcd2

SHA1
25b4f65c963cf5c8ddd5e283e337be74d394768c

SHA256
f05700c9cb3ee995d0b557716280c9e79c1f68ee6d57ce7a4f87b0ee4433fe29

SHA512
8e748c29b7097dcd56f5b7b92d7fcc104d9c11c349f268d258e9b2c6210e2d6bafda2d61b3d97fbe8c2e3b6caffe9b7b995cfee2b3240014029a6775d7af0e99

Download Submit
C:\Windows\SysWOW64\SubDir\asg.exe

Filesize
375KB

MD5
83ccb5c523ac9743f9db41460fe8fcd2

SHA1
25b4f65c963cf5c8ddd5e283e337be74d394768c

SHA256
f05700c9cb3ee995d0b557716280c9e79c1f68ee6d57ce7a4f87b0ee4433fe29

SHA512
8e748c29b7097dcd56f5b7b92d7fcc104d9c11c349f268d258e9b2c6210e2d6bafda2d61b3d97fbe8c2e3b6caffe9b7b995cfee2b3240014029a6775d7af0e99

Download Submit
memory/4200-115-0x0000000000880000-0x0000000000890000-memory.dmp

Filesize
64KB

Download
memory/4200-116-0x00000000010C0000-0x0000000001166000-memory.dmp

Filesize
664KB

Download
memory/4200-117-0x00000000011B0000-0x00000000011C2000-memory.dmp

Filesize
72KB

Download
memory/4200-118-0x0000000002AE0000-0x0000000002B1E000-memory.dmp

Filesize
248KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads