cb658dfff002d0dc901b7e82a7f022ea2c741b575bd706775bd0b098e7075806

Analysis

max time kernel
160s
max time network
169s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2022, 17:37

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

cb658dfff002d0dc901b7e82a7f022ea2c741b575bd706775bd0b098e7075806.exe
Size

58KB
MD5

c93704310fc2929d80f1e2d8ded3c7ca
SHA1

790d221e48fab6172987ee4f34d7fa06be7b7c57
SHA256

cb658dfff002d0dc901b7e82a7f022ea2c741b575bd706775bd0b098e7075806
SHA512

04efd839f864b707ad9e268b2d94a2e9059c0c98feb0f7181e459d1f667256625de808efee7b411e46b236fdda12e93fae298a3145c7be11ce4dc621e90f3199
SSDEEP

768:qqlRcLOBoGq8jkSuC0i/xTcgZWaz2gQZdReuEwTP/e4r2TzF7:qa4VGqa0i/x4yz25b9XTX7o7

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1408	server.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
2000	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	cb658dfff002d0dc901b7e82a7f022ea2c741b575bd706775bd0b098e7075806.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\babe8364d0b44de2ea6e4bcccd70281e.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\babe8364d0b44de2ea6e4bcccd70281e.exe	server.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\babe8364d0b44de2ea6e4bcccd70281e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\babe8364d0b44de2ea6e4bcccd70281e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.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 27 IoCs

pid	Process
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe
1408	server.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1408	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4740 wrote to memory of 1408	4740	cb658dfff002d0dc901b7e82a7f022ea2c741b575bd706775bd0b098e7075806.exe	80
PID 4740 wrote to memory of 1408	4740	cb658dfff002d0dc901b7e82a7f022ea2c741b575bd706775bd0b098e7075806.exe	80
PID 4740 wrote to memory of 1408	4740	cb658dfff002d0dc901b7e82a7f022ea2c741b575bd706775bd0b098e7075806.exe	80
PID 1408 wrote to memory of 2000	1408	server.exe	81
PID 1408 wrote to memory of 2000	1408	server.exe	81
PID 1408 wrote to memory of 2000	1408	server.exe	81

C:\Users\Admin\AppData\Local\Temp\cb658dfff002d0dc901b7e82a7f022ea2c741b575bd706775bd0b098e7075806.exe
"C:\Users\Admin\AppData\Local\Temp\cb658dfff002d0dc901b7e82a7f022ea2c741b575bd706775bd0b098e7075806.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4740
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.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:1408
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:2000

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
58KB

MD5
c93704310fc2929d80f1e2d8ded3c7ca

SHA1
790d221e48fab6172987ee4f34d7fa06be7b7c57

SHA256
cb658dfff002d0dc901b7e82a7f022ea2c741b575bd706775bd0b098e7075806

SHA512
04efd839f864b707ad9e268b2d94a2e9059c0c98feb0f7181e459d1f667256625de808efee7b411e46b236fdda12e93fae298a3145c7be11ce4dc621e90f3199

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
58KB

MD5
c93704310fc2929d80f1e2d8ded3c7ca

SHA1
790d221e48fab6172987ee4f34d7fa06be7b7c57

SHA256
cb658dfff002d0dc901b7e82a7f022ea2c741b575bd706775bd0b098e7075806

SHA512
04efd839f864b707ad9e268b2d94a2e9059c0c98feb0f7181e459d1f667256625de808efee7b411e46b236fdda12e93fae298a3145c7be11ce4dc621e90f3199

Download Submit
memory/1408-138-0x0000000075510000-0x0000000075AC1000-memory.dmp

Filesize
5.7MB

Download
memory/1408-139-0x0000000075510000-0x0000000075AC1000-memory.dmp

Filesize
5.7MB

Download
memory/4740-132-0x0000000075510000-0x0000000075AC1000-memory.dmp

Filesize
5.7MB

Download
memory/4740-137-0x0000000075510000-0x0000000075AC1000-memory.dmp

Filesize
5.7MB

Download