ddb9fbe1466215b7fe544f6cdb700c36afbf8c79c76b9b0e27cf16efaa71c5ec

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
04/12/2022, 14:16

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General

Target

ddb9fbe1466215b7fe544f6cdb700c36afbf8c79c76b9b0e27cf16efaa71c5ec.exe
Size

33KB
MD5

72d83b61847efab6d09999506a4d7a18
SHA1

408dcace71fed3d6ec7c8f628ec84cbdebd7e108
SHA256

ddb9fbe1466215b7fe544f6cdb700c36afbf8c79c76b9b0e27cf16efaa71c5ec
SHA512

5d7b86aa56f2c1491bff40bb8e8c0180727f65ecf86785a25fc03cfd33cd655364743bc322357072eeca9e25ec8832466291172339dfd16376fcc92550044e33
SSDEEP

768:BDtodNkDnNQqajgp5yWmeF6qQ4wRbx6nV:BR9DnNQqacJmeF7gbx6nV

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4992	Win8.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
4964	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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	ddb9fbe1466215b7fe544f6cdb700c36afbf8c79c76b9b0e27cf16efaa71c5ec.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3406813a45cf8bdcd106619234d16e2b.exe	Win8.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3406813a45cf8bdcd106619234d16e2b.exe	Win8.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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3406813a45cf8bdcd106619234d16e2b = "\"C:\\Users\\Admin\\AppData\\Roaming\\Win8.exe\" .."	Win8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\3406813a45cf8bdcd106619234d16e2b = "\"C:\\Users\\Admin\\AppData\\Roaming\\Win8.exe\" .."	Win8.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
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe
4992	Win8.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4992	Win8.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4728 wrote to memory of 4992	4728	ddb9fbe1466215b7fe544f6cdb700c36afbf8c79c76b9b0e27cf16efaa71c5ec.exe	81
PID 4728 wrote to memory of 4992	4728	ddb9fbe1466215b7fe544f6cdb700c36afbf8c79c76b9b0e27cf16efaa71c5ec.exe	81
PID 4728 wrote to memory of 4992	4728	ddb9fbe1466215b7fe544f6cdb700c36afbf8c79c76b9b0e27cf16efaa71c5ec.exe	81
PID 4992 wrote to memory of 4964	4992	Win8.exe	82
PID 4992 wrote to memory of 4964	4992	Win8.exe	82
PID 4992 wrote to memory of 4964	4992	Win8.exe	82

C:\Users\Admin\AppData\Local\Temp\ddb9fbe1466215b7fe544f6cdb700c36afbf8c79c76b9b0e27cf16efaa71c5ec.exe
"C:\Users\Admin\AppData\Local\Temp\ddb9fbe1466215b7fe544f6cdb700c36afbf8c79c76b9b0e27cf16efaa71c5ec.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4728
- C:\Users\Admin\AppData\Roaming\Win8.exe
  "C:\Users\Admin\AppData\Roaming\Win8.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:4992
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Win8.exe" "Win8.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:4964

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:\Users\Admin\AppData\Roaming\Win8.exe

Filesize
33KB

MD5
72d83b61847efab6d09999506a4d7a18

SHA1
408dcace71fed3d6ec7c8f628ec84cbdebd7e108

SHA256
ddb9fbe1466215b7fe544f6cdb700c36afbf8c79c76b9b0e27cf16efaa71c5ec

SHA512
5d7b86aa56f2c1491bff40bb8e8c0180727f65ecf86785a25fc03cfd33cd655364743bc322357072eeca9e25ec8832466291172339dfd16376fcc92550044e33

Download Submit
C:\Users\Admin\AppData\Roaming\Win8.exe

Filesize
33KB

MD5
72d83b61847efab6d09999506a4d7a18

SHA1
408dcace71fed3d6ec7c8f628ec84cbdebd7e108

SHA256
ddb9fbe1466215b7fe544f6cdb700c36afbf8c79c76b9b0e27cf16efaa71c5ec

SHA512
5d7b86aa56f2c1491bff40bb8e8c0180727f65ecf86785a25fc03cfd33cd655364743bc322357072eeca9e25ec8832466291172339dfd16376fcc92550044e33

Download Submit
memory/4728-132-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/4728-133-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/4728-137-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/4992-139-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/4992-140-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download