c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e

Analysis

max time kernel
190s
max time network
237s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
27/11/2022, 13:04

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General

Target

c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.exe
Size

395KB
MD5

64ae49b76e77e91648702ec307366574
SHA1

c3caacaa85a4e1264055b7b58e51942035c1b63d
SHA256

c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e
SHA512

7d72c6ebe3899b25ab4da8b48799ff8fb6d9061b758064ea6179973153d9c759fc35808901a23c8d05e102ec0e903c34f5339737ee9e75587ee50694c019f39b
SSDEEP

3072:uI3YNRJObPbVvz6LCntoiZQQFKAYiVWMHbzJLTpOegl9DywuINy6TKzm9E2Gktg1:5aRJObALCntHQQ0D2uFOfL36

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1556	fac.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
664	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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b37339a5d0012a54f56c15061b561449.exe	fac.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b37339a5d0012a54f56c15061b561449.exe	fac.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-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b37339a5d0012a54f56c15061b561449 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\fac.exe\" .."	fac.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\b37339a5d0012a54f56c15061b561449 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\fac.exe\" .."	fac.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 15 IoCs

pid	Process
1556	fac.exe
1556	fac.exe
1556	fac.exe
1556	fac.exe
1556	fac.exe
1556	fac.exe
1556	fac.exe
1556	fac.exe
1556	fac.exe
1556	fac.exe
1556	fac.exe
1556	fac.exe
1556	fac.exe
1556	fac.exe
1556	fac.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1556	fac.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2476 wrote to memory of 1556	2476	c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.exe	83
PID 2476 wrote to memory of 1556	2476	c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.exe	83
PID 2476 wrote to memory of 1556	2476	c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.exe	83
PID 1556 wrote to memory of 664	1556	fac.exe	84
PID 1556 wrote to memory of 664	1556	fac.exe	84
PID 1556 wrote to memory of 664	1556	fac.exe	84

C:\Users\Admin\AppData\Local\Temp\c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.exe
"C:\Users\Admin\AppData\Local\Temp\c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2476
- C:\Users\Admin\AppData\Local\Temp\fac.exe
  "C:\Users\Admin\AppData\Local\Temp\fac.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:1556
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\fac.exe" "fac.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:664

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\fac.exe

Filesize
395KB

MD5
64ae49b76e77e91648702ec307366574

SHA1
c3caacaa85a4e1264055b7b58e51942035c1b63d

SHA256
c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e

SHA512
7d72c6ebe3899b25ab4da8b48799ff8fb6d9061b758064ea6179973153d9c759fc35808901a23c8d05e102ec0e903c34f5339737ee9e75587ee50694c019f39b

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

Filesize
395KB

MD5
64ae49b76e77e91648702ec307366574

SHA1
c3caacaa85a4e1264055b7b58e51942035c1b63d

SHA256
c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e

SHA512
7d72c6ebe3899b25ab4da8b48799ff8fb6d9061b758064ea6179973153d9c759fc35808901a23c8d05e102ec0e903c34f5339737ee9e75587ee50694c019f39b

Download Submit
memory/1556-137-0x0000000074710000-0x0000000074CC1000-memory.dmp

Filesize
5.7MB

Download
memory/1556-140-0x0000000074710000-0x0000000074CC1000-memory.dmp

Filesize
5.7MB

Download
memory/2476-132-0x0000000074710000-0x0000000074CC1000-memory.dmp

Filesize
5.7MB

Download
memory/2476-133-0x0000000074710000-0x0000000074CC1000-memory.dmp

Filesize
5.7MB

Download
memory/2476-138-0x0000000074710000-0x0000000074CC1000-memory.dmp

Filesize
5.7MB

Download