d464c1e1c41bc07b9c69515b9b355ba6f8a6dc78cf2cc0dc2d6a1824e6c39dfe

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20/02/2024, 07:39

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General

Target

2024-02-20_c6a9fed42d7c6fd9d20651a24b524c92_cryptolocker.exe
Size

54KB
MD5

c6a9fed42d7c6fd9d20651a24b524c92
SHA1

b9979cd59cb31d1caf606d39ae2bb054b634f994
SHA256

d464c1e1c41bc07b9c69515b9b355ba6f8a6dc78cf2cc0dc2d6a1824e6c39dfe
SHA512

4eb52475a286ff4ef4a3f5320227d0c099526f1666dc344ddc68977203246435e2ead00fb40535b4d01d16770848e77cacb800b19e50ebb1624ef9f88916bfb4
SSDEEP

1536:X6QFElP6n+gJBMOtEvwDpjBtE1yILJ0ws:X6a+BOtEvwDpjBOg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001225b-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001225b-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2452	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2408	2024-02-20_c6a9fed42d7c6fd9d20651a24b524c92_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 2408 wrote to memory of 2452	2408	2024-02-20_c6a9fed42d7c6fd9d20651a24b524c92_cryptolocker.exe	28
PID 2408 wrote to memory of 2452	2408	2024-02-20_c6a9fed42d7c6fd9d20651a24b524c92_cryptolocker.exe	28
PID 2408 wrote to memory of 2452	2408	2024-02-20_c6a9fed42d7c6fd9d20651a24b524c92_cryptolocker.exe	28
PID 2408 wrote to memory of 2452	2408	2024-02-20_c6a9fed42d7c6fd9d20651a24b524c92_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-20_c6a9fed42d7c6fd9d20651a24b524c92_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_c6a9fed42d7c6fd9d20651a24b524c92_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2452

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
54KB

MD5
70aabce5ce461b7f5317f6d2b2d4e9e1

SHA1
828d2ee05aba92fa820a9aaaeb7cd11cc5915c9c

SHA256
ad0fa8702044c5acce46b3a5421f669c9460508f6910496f3012d51ec166252a

SHA512
8038f8e9d1e535a06349753d2bd39d514c2c1af22ae0d41e7fac2c9ea4fe804568aa0cf2adcbf24f60a6224038a9529d8c30c746ea738c1a8791898c33b6c538

Download Submit
memory/2408-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2408-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2408-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2452-16-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2452-15-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download