9fbe475255a4b31d4845b52155cfe7599f2153bd152150a32cc8b97b9de6abc9

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13/02/2024, 06:10

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General

Target

2024-02-13_c861b516460a29422de670716c304fb9_cryptolocker.exe
Size

93KB
MD5

c861b516460a29422de670716c304fb9
SHA1

be9d59f396888dd2a3c56a3eae28ff27a7d0b9dd
SHA256

9fbe475255a4b31d4845b52155cfe7599f2153bd152150a32cc8b97b9de6abc9
SHA512

e2966d5835ff4c1438a9cabfce96e8b828e2fb631a44dce9685ee1ee6459799e6bb86e3f65df8645a87f06aeb9c96d7a026ae3b0533155861c22efeb3f50b3b2
SSDEEP

1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNC+:26a+2OtEvwDpjtzR

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012264-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012264-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1984	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2008	2024-02-13_c861b516460a29422de670716c304fb9_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 2008 wrote to memory of 1984	2008	2024-02-13_c861b516460a29422de670716c304fb9_cryptolocker.exe	28
PID 2008 wrote to memory of 1984	2008	2024-02-13_c861b516460a29422de670716c304fb9_cryptolocker.exe	28
PID 2008 wrote to memory of 1984	2008	2024-02-13_c861b516460a29422de670716c304fb9_cryptolocker.exe	28
PID 2008 wrote to memory of 1984	2008	2024-02-13_c861b516460a29422de670716c304fb9_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-13_c861b516460a29422de670716c304fb9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_c861b516460a29422de670716c304fb9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1984

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
93KB

MD5
6b366e408fb6f73f296548fabebb9ac9

SHA1
fd0a9b1e0305d7faf0ae7c41829cb854b391744e

SHA256
31210e5c13ba9e084e5e01607030d37e0229005855eb8b5be51bbd87e1a2e510

SHA512
ce7efff5057656bb1b03389ed89254a92775043eac459fb4a2dfe2653b4f553bbee9f5d38e24a61f762ab55a28c82ad955f45c8951d53222122ea41881f32915

Download Submit
memory/1984-15-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2008-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2008-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2008-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download