cfa9c110d0827f529c3e10f13259e8d298f22273ec32e4c67e82fa2ed8cf3a3f

Analysis

max time kernel
151s
max time network
145s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-04-2024 02:44

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General

Target

2024-04-17_f29cbc682746b4e80bbb4cbdc01c5abb_cryptolocker.exe
Size

94KB
MD5

f29cbc682746b4e80bbb4cbdc01c5abb
SHA1

ca5ac573ac3ae757537a460fccbb584f44f2ba05
SHA256

cfa9c110d0827f529c3e10f13259e8d298f22273ec32e4c67e82fa2ed8cf3a3f
SHA512

64c92bc63c5e8662c09089ae08e338ea945733736b37ff67268b212edff2f4899bd3fbbc0ff420b674d6a7b1db82135f0943ba3f8bd3a3609dba1f6bd4dbf058
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMgi:V6a+pOtEvwDpjtzm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000f0000000122de-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000f0000000122de-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1856	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1476	2024-04-17_f29cbc682746b4e80bbb4cbdc01c5abb_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 1476 wrote to memory of 1856	1476	2024-04-17_f29cbc682746b4e80bbb4cbdc01c5abb_cryptolocker.exe	28
PID 1476 wrote to memory of 1856	1476	2024-04-17_f29cbc682746b4e80bbb4cbdc01c5abb_cryptolocker.exe	28
PID 1476 wrote to memory of 1856	1476	2024-04-17_f29cbc682746b4e80bbb4cbdc01c5abb_cryptolocker.exe	28
PID 1476 wrote to memory of 1856	1476	2024-04-17_f29cbc682746b4e80bbb4cbdc01c5abb_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-17_f29cbc682746b4e80bbb4cbdc01c5abb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-17_f29cbc682746b4e80bbb4cbdc01c5abb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1476
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1856

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
94KB

MD5
e38b17dd73d3dc3a449bc3533e743167

SHA1
e6a12ba12b2ac6d31ba61bee330c4fe3d77bc6ae

SHA256
c1f13b4c0c4f0b2fc8bad0b854640a6367b998b8d4a4fbdfc908bea67eb18094

SHA512
84bee1e063e22be0b9ab3d4fd7c69683c238f1fdace82791a2ed5505ff76d1bec929f0a67787ceac92e691ba9d9f85129e5cd23388c0f862c47ecb1ae8c1f4ea

Download Submit
memory/1476-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1476-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1476-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1856-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1856-18-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download