875068bcb2f6d59e1e2ba9d410ad4d29f4b94b0833af9f918c07962eb9b98c55

Analysis

max time kernel
149s
max time network
168s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2022, 09:08

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General

Target

875068bcb2f6d59e1e2ba9d410ad4d29f4b94b0833af9f918c07962eb9b98c55.exe
Size

26KB
MD5

63e0755fdfbf9de0cf7a2953af111300
SHA1

9f81c0d2f9ca4076d6b65b439926bfab3979c047
SHA256

875068bcb2f6d59e1e2ba9d410ad4d29f4b94b0833af9f918c07962eb9b98c55
SHA512

8091df8352777653f41e916987b31fa4d27d356c68c5c768f5ed83f013312434e4b19423521da7802df7b769ad03e2c7c546c573a6c4a185e929e321b005dcaa
SSDEEP

768:q5nOnCK5+0NkJBVT9ixyZCNude5GHllixkFfcfX9yet:1kJ/YxyAo86jf2get

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
5004	system.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
1220	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	875068bcb2f6d59e1e2ba9d410ad4d29f4b94b0833af9f918c07962eb9b98c55.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\12ce4e06a81e8d54fd01d9b762f1b1bb.exe	system.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\12ce4e06a81e8d54fd01d9b762f1b1bb.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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\12ce4e06a81e8d54fd01d9b762f1b1bb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\12ce4e06a81e8d54fd01d9b762f1b1bb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\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
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe
5004	system.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5004	system.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 380 wrote to memory of 5004	380	875068bcb2f6d59e1e2ba9d410ad4d29f4b94b0833af9f918c07962eb9b98c55.exe	82
PID 380 wrote to memory of 5004	380	875068bcb2f6d59e1e2ba9d410ad4d29f4b94b0833af9f918c07962eb9b98c55.exe	82
PID 380 wrote to memory of 5004	380	875068bcb2f6d59e1e2ba9d410ad4d29f4b94b0833af9f918c07962eb9b98c55.exe	82
PID 5004 wrote to memory of 1220	5004	system.exe	83
PID 5004 wrote to memory of 1220	5004	system.exe	83
PID 5004 wrote to memory of 1220	5004	system.exe	83

C:\Users\Admin\AppData\Local\Temp\875068bcb2f6d59e1e2ba9d410ad4d29f4b94b0833af9f918c07962eb9b98c55.exe
"C:\Users\Admin\AppData\Local\Temp\875068bcb2f6d59e1e2ba9d410ad4d29f4b94b0833af9f918c07962eb9b98c55.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:380
- C:\Users\Admin\AppData\Local\Temp\system.exe
  "C:\Users\Admin\AppData\Local\Temp\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:5004
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system.exe" "system.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1220

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

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Downloads

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

Filesize
26KB

MD5
63e0755fdfbf9de0cf7a2953af111300

SHA1
9f81c0d2f9ca4076d6b65b439926bfab3979c047

SHA256
875068bcb2f6d59e1e2ba9d410ad4d29f4b94b0833af9f918c07962eb9b98c55

SHA512
8091df8352777653f41e916987b31fa4d27d356c68c5c768f5ed83f013312434e4b19423521da7802df7b769ad03e2c7c546c573a6c4a185e929e321b005dcaa

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

Filesize
26KB

MD5
63e0755fdfbf9de0cf7a2953af111300

SHA1
9f81c0d2f9ca4076d6b65b439926bfab3979c047

SHA256
875068bcb2f6d59e1e2ba9d410ad4d29f4b94b0833af9f918c07962eb9b98c55

SHA512
8091df8352777653f41e916987b31fa4d27d356c68c5c768f5ed83f013312434e4b19423521da7802df7b769ad03e2c7c546c573a6c4a185e929e321b005dcaa

Download Submit
memory/380-132-0x0000000075360000-0x0000000075911000-memory.dmp

Filesize
5.7MB

Download
memory/380-136-0x0000000075360000-0x0000000075911000-memory.dmp

Filesize
5.7MB

Download
memory/5004-138-0x0000000075360000-0x0000000075911000-memory.dmp

Filesize
5.7MB

Download
memory/5004-139-0x0000000075360000-0x0000000075911000-memory.dmp

Filesize
5.7MB

Download