3afb2fdb6921234c1c6c8a3fb09103b17a4acde227984c9fc30d11d43e64c574

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 11:07

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General

Target

2024-02-23_dfaab30b365dc211b0f24bf343958370_cryptolocker.exe
Size

70KB
MD5

dfaab30b365dc211b0f24bf343958370
SHA1

fca05d1d5b844915283e2ade24a89a2e9db7cf22
SHA256

3afb2fdb6921234c1c6c8a3fb09103b17a4acde227984c9fc30d11d43e64c574
SHA512

8441511655872adde83604cd9b37a3fa8aad90de5955041a71cf18b4565a6c0745b7ce0671d84338f02cc0e1c5ae86fec8a06a0e02b28699198f2181c0251ded
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZOud:DW60sllyWOtEvwDpjwF85v

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/1512-2-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x00090000000122be-11.dat	CryptoLocker_rule2
behavioral1/memory/2368-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/1512-2-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x00090000000122be-11.dat	CryptoLocker_set1
behavioral1/memory/2368-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2368	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1512	2024-02-23_dfaab30b365dc211b0f24bf343958370_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 1512 wrote to memory of 2368	1512	2024-02-23_dfaab30b365dc211b0f24bf343958370_cryptolocker.exe	28
PID 1512 wrote to memory of 2368	1512	2024-02-23_dfaab30b365dc211b0f24bf343958370_cryptolocker.exe	28
PID 1512 wrote to memory of 2368	1512	2024-02-23_dfaab30b365dc211b0f24bf343958370_cryptolocker.exe	28
PID 1512 wrote to memory of 2368	1512	2024-02-23_dfaab30b365dc211b0f24bf343958370_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_dfaab30b365dc211b0f24bf343958370_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_dfaab30b365dc211b0f24bf343958370_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1512
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2368

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
70KB

MD5
98f8a8b7a3d625709a5e6169c577b320

SHA1
d7d2f038f62524a8d52fa286a094aca1fc2efa7d

SHA256
ccdc1533687d048f44826bf1f54fada1774eed0cb572cf0a1bce486d82db1c93

SHA512
beaa2f0d02713e31ba88d048949ef4464364455cc9aaa5e9bcacaf80681546b6febd2cf137398d30abf82875bf598f3aa2d5c4a1658eb1f425a5e4d08582c449

Download Submit
memory/1512-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1512-2-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1512-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1512-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2368-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2368-17-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2368-24-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download