d9afb2bd7c6a24acd85200e8b31b7744c1cea256851f99dcedc67e1afdbfe0e2

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
05/05/2024, 15:32

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General

Target

2024-05-05_7875f3acce80844726616d46120bad95_cryptolocker.exe
Size

38KB
MD5

7875f3acce80844726616d46120bad95
SHA1

734d768187b122895597eba7b9d193cfd9f083b3
SHA256

d9afb2bd7c6a24acd85200e8b31b7744c1cea256851f99dcedc67e1afdbfe0e2
SHA512

303b5ad6d5495e912d3dbea3fecc4db96cffd806638715210670b3a0db8769bcad4c7b40e2182edf0863be7891eb8ac94186817d2b002a8679b137af27c535ee
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSyHmYvV8j:btB9g/WItCSsAGjX7e9N0hunRvGIV8j

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001342e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2984	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2348	2024-05-05_7875f3acce80844726616d46120bad95_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2348	2024-05-05_7875f3acce80844726616d46120bad95_cryptolocker.exe
2984	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 2984	2348	2024-05-05_7875f3acce80844726616d46120bad95_cryptolocker.exe	28
PID 2348 wrote to memory of 2984	2348	2024-05-05_7875f3acce80844726616d46120bad95_cryptolocker.exe	28
PID 2348 wrote to memory of 2984	2348	2024-05-05_7875f3acce80844726616d46120bad95_cryptolocker.exe	28
PID 2348 wrote to memory of 2984	2348	2024-05-05_7875f3acce80844726616d46120bad95_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-05_7875f3acce80844726616d46120bad95_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-05_7875f3acce80844726616d46120bad95_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

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

Filesize
39KB

MD5
23acf5cdc02ecb9ee354ac29107cb752

SHA1
544ac41a1976b5c03628388d5510fe0fb5e77884

SHA256
7892998e9fc351f761419e0869d54e59ba3a242dc1a157243ba426de30a52b14

SHA512
ddd79760c4cb7e6ca57a9db45f59cd991c8f6ecc7aeff5e243f937374c4f84c02cb49a5b316ebaf48f25d503153723cc4f70225740e9e740d5fdb90f6d7fcf2a

Download Submit
memory/2348-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2348-0-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2348-8-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2984-23-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download