3cf552d5e55d46f64468149ba01ee30da79d8e9e23dfe63c558f04809a804e97

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10-05-2024 02:55

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General

Target

2024-05-10_60838f40eac5ea2ba6d36e64797bdf8d_cryptolocker.exe
Size

50KB
MD5

60838f40eac5ea2ba6d36e64797bdf8d
SHA1

ed982e113dedf97d075f85b5877b5e82a5b44ce8
SHA256

3cf552d5e55d46f64468149ba01ee30da79d8e9e23dfe63c558f04809a804e97
SHA512

e962d171fcc18e345302beadf68da2e89ce7a118d6faef38c336ae380556a28b1a91756fd455cd33c0b88527654e8fa7cc0a237bb5eaec3bbb756c37a8dfab88
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZYY:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLiY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014e5a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014e5a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2520	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2192	2024-05-10_60838f40eac5ea2ba6d36e64797bdf8d_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 2520	2192	2024-05-10_60838f40eac5ea2ba6d36e64797bdf8d_cryptolocker.exe	28
PID 2192 wrote to memory of 2520	2192	2024-05-10_60838f40eac5ea2ba6d36e64797bdf8d_cryptolocker.exe	28
PID 2192 wrote to memory of 2520	2192	2024-05-10_60838f40eac5ea2ba6d36e64797bdf8d_cryptolocker.exe	28
PID 2192 wrote to memory of 2520	2192	2024-05-10_60838f40eac5ea2ba6d36e64797bdf8d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-10_60838f40eac5ea2ba6d36e64797bdf8d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_60838f40eac5ea2ba6d36e64797bdf8d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2520

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\asih.exe

Filesize
50KB

MD5
a5e5a0f2ff0ce3597068e8543c115324

SHA1
59437955b5501b6150f7d57fd2e71d42b5ad46d3

SHA256
9953b80bd5b79d01b51daf19bed842846326434f3d4d1f2080f43fd94aea196a

SHA512
7694444f48e8ed4ee5ad8eff1256627278185b0254fc0b981ea2bd4768216fe791675cf041c11edc4cea24326df482b2f83b81a78bf42a0b7aabbacb39f62610

Download Submit
memory/2192-0-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2192-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2192-8-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2520-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2520-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download