577539a472cff9c914049012b79319002212aac48c556a02eb2b042940c42d5a

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19/02/2024, 00:49

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General

Target

2024-02-19_ead8c90434a9403000d62d30ed969bce_cryptolocker.exe
Size

32KB
MD5

ead8c90434a9403000d62d30ed969bce
SHA1

b3c4c24aefa173b9b9a88476dbfcd4bd0319026d
SHA256

577539a472cff9c914049012b79319002212aac48c556a02eb2b042940c42d5a
SHA512

0147b3b04466886b10dcf23843717d09bf67981a92361f759bc122811fe6110c37eb27f5811925c7c60f9a321eee5e5bfedd425f996e7cad8b628e0f8726dfd9
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2BoRjm:btB9g/WItCSsAGjX7r3Bo4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012252-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2196	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1708	2024-02-19_ead8c90434a9403000d62d30ed969bce_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
1708	2024-02-19_ead8c90434a9403000d62d30ed969bce_cryptolocker.exe
2196	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 2196	1708	2024-02-19_ead8c90434a9403000d62d30ed969bce_cryptolocker.exe	28
PID 1708 wrote to memory of 2196	1708	2024-02-19_ead8c90434a9403000d62d30ed969bce_cryptolocker.exe	28
PID 1708 wrote to memory of 2196	1708	2024-02-19_ead8c90434a9403000d62d30ed969bce_cryptolocker.exe	28
PID 1708 wrote to memory of 2196	1708	2024-02-19_ead8c90434a9403000d62d30ed969bce_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_ead8c90434a9403000d62d30ed969bce_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_ead8c90434a9403000d62d30ed969bce_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1708
- 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:2196

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
32KB

MD5
1efccfe886efc07e42341f681a78f282

SHA1
0674b9a2524f8ccf45106c8d231b3f072afd501f

SHA256
f057ca84627a8179cbad49fcfafd12aa7966493286594ba5b2343cbed1aa694e

SHA512
455e1e923dcad7188188ef10f54785b1b21017f958d3255e7651be15dc8fd48ad602555b0f85e6f84fdeadc7521465ca5c2c5c0c6ccdabcf8e83d80fa3c098ad

Download Submit
memory/1708-0-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/1708-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1708-2-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2196-19-0x00000000001F0000-0x00000000001F6000-memory.dmp

Filesize
24KB

Download