af67ba1f07486b97d3b8ba3ee488357d404dc7dcbca9e55cb71b137030e872d4

Analysis

max time kernel
152s
max time network
156s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26-03-2024 14:23

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General

Target

2024-03-26_0341d646b560cf5eca11043f243aec91_cryptolocker.exe
Size

40KB
MD5

0341d646b560cf5eca11043f243aec91
SHA1

d66cabec5912fcbafe52fd7bc60256f50af96fff
SHA256

af67ba1f07486b97d3b8ba3ee488357d404dc7dcbca9e55cb71b137030e872d4
SHA512

2237499818a4cf893ff4c021714679b80f0278fe46ec05700531c337d3811ca32b26c54fa722a89b8ac68ed2888a2c25dc2a8d9417550788b236fa1e6755ddc5
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5axRV8X:V6QFElP6n+gMQMOtEvwDpjyaYa6X

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012247-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012247-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3028	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2908	2024-03-26_0341d646b560cf5eca11043f243aec91_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 2908 wrote to memory of 3028	2908	2024-03-26_0341d646b560cf5eca11043f243aec91_cryptolocker.exe	28
PID 2908 wrote to memory of 3028	2908	2024-03-26_0341d646b560cf5eca11043f243aec91_cryptolocker.exe	28
PID 2908 wrote to memory of 3028	2908	2024-03-26_0341d646b560cf5eca11043f243aec91_cryptolocker.exe	28
PID 2908 wrote to memory of 3028	2908	2024-03-26_0341d646b560cf5eca11043f243aec91_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_0341d646b560cf5eca11043f243aec91_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_0341d646b560cf5eca11043f243aec91_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2908
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3028

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
40KB

MD5
33f50ef4ca37a160095ef929e3dd13a2

SHA1
c5ed301673e7a15327920bf4d0a5cd1dee0f5913

SHA256
e5e0f9bc858851fed77e31a4d6eccb89494eba533aaf31354bb024176295e849

SHA512
6708f8566e930951b9d4fdb0b167b70594626a65c8f5c43084ffac17a8b546d36f19f552c0121a30c0de5802b489e982a0cbbacd78559285bfde745a77c9e371

Download Submit
memory/2908-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2908-1-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2908-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3028-15-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/3028-19-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download