ab5046728ae15e3d2a0bf24a9f0f3bacc6adf3cd09dae411771fda56ddea533b

Analysis

max time kernel
161s
max time network
175s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2022, 19:43

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General

Target

ab5046728ae15e3d2a0bf24a9f0f3bacc6adf3cd09dae411771fda56ddea533b.exe
Size

151KB
MD5

b0f9ce4e927a37035f8c70af45389a4f
SHA1

0d4322e633ad7f2483b16e51359507b5256a49ca
SHA256

ab5046728ae15e3d2a0bf24a9f0f3bacc6adf3cd09dae411771fda56ddea533b
SHA512

56914c5623ecc87cff1dde10342e36e1b23efae3ab0a324877cbd9489f7926a2e6d632b979a32bf4d944aa2ad70c375166292454afeabd16725979207b258765
SSDEEP

3072:1bRbVSvT5MiRI33wIXHoDJfeIJlghKkAXjjxTqq1mBYiO:1bWvT5MiRI33wNXdkATtT71mB

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4968	system.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
4604	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	ab5046728ae15e3d2a0bf24a9f0f3bacc6adf3cd09dae411771fda56ddea533b.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cc6885fb771802b45c9dcc628f9ad989.exe	system.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cc6885fb771802b45c9dcc628f9ad989.exe	system.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cc6885fb771802b45c9dcc628f9ad989 = "\"C:\\ProgramData\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\cc6885fb771802b45c9dcc628f9ad989 = "\"C:\\ProgramData\\system.exe\" .."	system.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe
4968	system.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4968	system.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4056 wrote to memory of 4968	4056	ab5046728ae15e3d2a0bf24a9f0f3bacc6adf3cd09dae411771fda56ddea533b.exe	84
PID 4056 wrote to memory of 4968	4056	ab5046728ae15e3d2a0bf24a9f0f3bacc6adf3cd09dae411771fda56ddea533b.exe	84
PID 4056 wrote to memory of 4968	4056	ab5046728ae15e3d2a0bf24a9f0f3bacc6adf3cd09dae411771fda56ddea533b.exe	84
PID 4968 wrote to memory of 4604	4968	system.exe	85
PID 4968 wrote to memory of 4604	4968	system.exe	85
PID 4968 wrote to memory of 4604	4968	system.exe	85

C:\Users\Admin\AppData\Local\Temp\ab5046728ae15e3d2a0bf24a9f0f3bacc6adf3cd09dae411771fda56ddea533b.exe
"C:\Users\Admin\AppData\Local\Temp\ab5046728ae15e3d2a0bf24a9f0f3bacc6adf3cd09dae411771fda56ddea533b.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4056
- C:\ProgramData\system.exe
  "C:\ProgramData\system.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4968
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\ProgramData\system.exe" "system.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:4604

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\system.exe

Filesize
151KB

MD5
b0f9ce4e927a37035f8c70af45389a4f

SHA1
0d4322e633ad7f2483b16e51359507b5256a49ca

SHA256
ab5046728ae15e3d2a0bf24a9f0f3bacc6adf3cd09dae411771fda56ddea533b

SHA512
56914c5623ecc87cff1dde10342e36e1b23efae3ab0a324877cbd9489f7926a2e6d632b979a32bf4d944aa2ad70c375166292454afeabd16725979207b258765

Download Submit
C:\ProgramData\system.exe

Filesize
151KB

MD5
b0f9ce4e927a37035f8c70af45389a4f

SHA1
0d4322e633ad7f2483b16e51359507b5256a49ca

SHA256
ab5046728ae15e3d2a0bf24a9f0f3bacc6adf3cd09dae411771fda56ddea533b

SHA512
56914c5623ecc87cff1dde10342e36e1b23efae3ab0a324877cbd9489f7926a2e6d632b979a32bf4d944aa2ad70c375166292454afeabd16725979207b258765

Download Submit
memory/4056-132-0x0000000074DF0000-0x00000000753A1000-memory.dmp

Filesize
5.7MB

Download
memory/4056-133-0x0000000074DF0000-0x00000000753A1000-memory.dmp

Filesize
5.7MB

Download
memory/4056-137-0x0000000074DF0000-0x00000000753A1000-memory.dmp

Filesize
5.7MB

Download
memory/4968-138-0x0000000074DF0000-0x00000000753A1000-memory.dmp

Filesize
5.7MB

Download
memory/4968-140-0x0000000074DF0000-0x00000000753A1000-memory.dmp

Filesize
5.7MB

Download