c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e

General

Target

c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.exe
Size

395KB
MD5

64ae49b76e77e91648702ec307366574
SHA1

c3caacaa85a4e1264055b7b58e51942035c1b63d
SHA256

c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e
SHA512

7d72c6ebe3899b25ab4da8b48799ff8fb6d9061b758064ea6179973153d9c759fc35808901a23c8d05e102ec0e903c34f5339737ee9e75587ee50694c019f39b
SSDEEP

3072:uI3YNRJObPbVvz6LCntoiZQQFKAYiVWMHbzJLTpOegl9DywuINy6TKzm9E2Gktg1:5aRJObALCntHQQ0D2uFOfL36

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
900	fac.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
1864	netsh.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

Loads dropped DLL 1 IoCs

pid	Process
1324	c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.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-1-5-21-4063495947-34355257-727531523-1000\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 18 IoCs

pid	Process
900	fac.exe
900	fac.exe
900	fac.exe
900	fac.exe
900	fac.exe
900	fac.exe
900	fac.exe
900	fac.exe
900	fac.exe
900	fac.exe
900	fac.exe
900	fac.exe
900	fac.exe
900	fac.exe
900	fac.exe
900	fac.exe
900	fac.exe
900	fac.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	900	fac.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1324 wrote to memory of 900	1324	c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.exe	27
PID 1324 wrote to memory of 900	1324	c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.exe	27
PID 1324 wrote to memory of 900	1324	c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.exe	27
PID 1324 wrote to memory of 900	1324	c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.exe	27
PID 900 wrote to memory of 1864	900	fac.exe	28
PID 900 wrote to memory of 1864	900	fac.exe	28
PID 900 wrote to memory of 1864	900	fac.exe	28
PID 900 wrote to memory of 1864	900	fac.exe	28

C:\Users\Admin\AppData\Local\Temp\c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.exe
"C:\Users\Admin\AppData\Local\Temp\c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1324
- 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:900
- - 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:1864

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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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
\Users\Admin\AppData\Local\Temp\fac.exe

Filesize
395KB

MD5
64ae49b76e77e91648702ec307366574

SHA1
c3caacaa85a4e1264055b7b58e51942035c1b63d

SHA256
c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e

SHA512
7d72c6ebe3899b25ab4da8b48799ff8fb6d9061b758064ea6179973153d9c759fc35808901a23c8d05e102ec0e903c34f5339737ee9e75587ee50694c019f39b

Download Submit
memory/900-63-0x00000000748F0000-0x0000000074E9B000-memory.dmp

Filesize
5.7MB

Download
memory/900-65-0x00000000748F0000-0x0000000074E9B000-memory.dmp

Filesize
5.7MB

Download
memory/1324-54-0x0000000075AC1000-0x0000000075AC3000-memory.dmp

Filesize
8KB

Download
memory/1324-55-0x00000000748F0000-0x0000000074E9B000-memory.dmp

Filesize
5.7MB

Download
memory/1324-61-0x00000000748F0000-0x0000000074E9B000-memory.dmp

Filesize
5.7MB

Download

Analysis

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