fbb4fd4faa095562ddadd649d9c4c86c5dc207969a36aa2a5f64ec40118873bc

Analysis

max time kernel
39s
max time network
44s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
04-10-2022 00:58

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General

Target

fbb4fd4faa095562ddadd649d9c4c86c5dc207969a36aa2a5f64ec40118873bc.exe
Size

159KB
MD5

448079e7811c266d2008db5b6b98a320
SHA1

8e3a30ba48d36bdeb32f444594c70f2853e9d4a5
SHA256

fbb4fd4faa095562ddadd649d9c4c86c5dc207969a36aa2a5f64ec40118873bc
SHA512

5f95e44972e7b4eca153fd8f301a0834a3cc4f97e885e73b57f6bb06e78f7c247cea4172b86943f4a2b5fced8cf99f508b2d07979c3905403689b89d725bfa06
SSDEEP

3072:b1dlKwgj23+Oz05YoNozdQRMzsb5n6VZlu5rayBCNdAYwB96OaX0e9:b1dlZro5ydRsF61RYCNd7wr6ODA

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
892	Server.exe

Loads dropped DLL 1 IoCs

pid	Process
1976	fbb4fd4faa095562ddadd649d9c4c86c5dc207969a36aa2a5f64ec40118873bc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1552	892	WerFault.exe	26

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 892	1976	fbb4fd4faa095562ddadd649d9c4c86c5dc207969a36aa2a5f64ec40118873bc.exe	26
PID 1976 wrote to memory of 892	1976	fbb4fd4faa095562ddadd649d9c4c86c5dc207969a36aa2a5f64ec40118873bc.exe	26
PID 1976 wrote to memory of 892	1976	fbb4fd4faa095562ddadd649d9c4c86c5dc207969a36aa2a5f64ec40118873bc.exe	26
PID 1976 wrote to memory of 892	1976	fbb4fd4faa095562ddadd649d9c4c86c5dc207969a36aa2a5f64ec40118873bc.exe	26
PID 892 wrote to memory of 1552	892	Server.exe	27
PID 892 wrote to memory of 1552	892	Server.exe	27
PID 892 wrote to memory of 1552	892	Server.exe	27

C:\Users\Admin\AppData\Local\Temp\fbb4fd4faa095562ddadd649d9c4c86c5dc207969a36aa2a5f64ec40118873bc.exe
"C:\Users\Admin\AppData\Local\Temp\fbb4fd4faa095562ddadd649d9c4c86c5dc207969a36aa2a5f64ec40118873bc.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Extracted\Server.exe
  "C:\Extracted\Server.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:892
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 892 -s 656
    3⤵
    - Program crash
    PID:1552

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Extracted\Server.exe

Filesize
100KB

MD5
51ebc2d3d5d4a7482df580d302825dbb

SHA1
15c438d46983bbf488476eb77206fd7329df2fff

SHA256
47248fb669123a817078676f26f52761ff51198b01027cccb0aa47cea665fdea

SHA512
348e02d1b42e52c363c28e2dadc7ba248adc0177b91b67444e4165b19e7b998a51c366ca1520ca8ee59c12ecb06f46d2bf709d4296022413c820d6e9aa69b17a

Download Submit
C:\Extracted\Server.exe

Filesize
100KB

MD5
51ebc2d3d5d4a7482df580d302825dbb

SHA1
15c438d46983bbf488476eb77206fd7329df2fff

SHA256
47248fb669123a817078676f26f52761ff51198b01027cccb0aa47cea665fdea

SHA512
348e02d1b42e52c363c28e2dadc7ba248adc0177b91b67444e4165b19e7b998a51c366ca1520ca8ee59c12ecb06f46d2bf709d4296022413c820d6e9aa69b17a

Download Submit
\Extracted\Server.exe

Filesize
100KB

MD5
51ebc2d3d5d4a7482df580d302825dbb

SHA1
15c438d46983bbf488476eb77206fd7329df2fff

SHA256
47248fb669123a817078676f26f52761ff51198b01027cccb0aa47cea665fdea

SHA512
348e02d1b42e52c363c28e2dadc7ba248adc0177b91b67444e4165b19e7b998a51c366ca1520ca8ee59c12ecb06f46d2bf709d4296022413c820d6e9aa69b17a

Download Submit
memory/892-56-0x0000000000000000-mapping.dmp

Download
memory/892-59-0x00000000013B0000-0x00000000013D0000-memory.dmp

Filesize
128KB

Download
memory/892-60-0x00000000001E0000-0x00000000001EA000-memory.dmp

Filesize
40KB

Download
memory/892-61-0x0000000000500000-0x000000000050C000-memory.dmp

Filesize
48KB

Download
memory/1552-62-0x0000000000000000-mapping.dmp

Download
memory/1976-54-0x0000000074D81000-0x0000000074D83000-memory.dmp

Filesize
8KB

Download