75f61bd4b30bc45d7f4cd3047744be5587572c84f4760cefe96d61323e163356

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09-05-2024 03:33

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General

Target

2024-05-09_3852adf14bc45b21708ab99508391548_cryptolocker.exe
Size

36KB
MD5

3852adf14bc45b21708ab99508391548
SHA1

efc17fe9895cff011f305ef0899dbc15a6ad5050
SHA256

75f61bd4b30bc45d7f4cd3047744be5587572c84f4760cefe96d61323e163356
SHA512

b1432e09af1d888f729342c36bfed1aed4a488c83c204727afe7e5c9a8e7268e20e65b10212cc1ebe168a9803dceb0750cab5a8591857968f324d8a52e810eba
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0q8bKW0E:btB9g/WItCSsAGjX7r3BTAKWN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001470b-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2976	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2292	2024-05-09_3852adf14bc45b21708ab99508391548_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
2292	2024-05-09_3852adf14bc45b21708ab99508391548_cryptolocker.exe
2976	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2976	2292	2024-05-09_3852adf14bc45b21708ab99508391548_cryptolocker.exe	28
PID 2292 wrote to memory of 2976	2292	2024-05-09_3852adf14bc45b21708ab99508391548_cryptolocker.exe	28
PID 2292 wrote to memory of 2976	2292	2024-05-09_3852adf14bc45b21708ab99508391548_cryptolocker.exe	28
PID 2292 wrote to memory of 2976	2292	2024-05-09_3852adf14bc45b21708ab99508391548_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-09_3852adf14bc45b21708ab99508391548_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_3852adf14bc45b21708ab99508391548_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2292
- 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:2976

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
36KB

MD5
2acbfbc7a6b8bdf2e6cb116222df035f

SHA1
4b1ab047e589ab25497afcff43d051b25537510d

SHA256
5435d08891d42c49cd6a1b948c29ab4a804a2226dfc2e7ce4eebaadd770a4a74

SHA512
d0b1b981f4830b8a3b0ad3c1ac32479a29b379a7d84c2b1da2517f13043a117408927eb5373afee90ebc8ac281eda493754620be6cb93030c3bef8e8446dbf35

Download Submit
memory/2292-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2292-0-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2292-8-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2976-23-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download