827955284cc9f25bc8d8423f4c5d9b1ba1cde3c231b59e8e8700d886ce887663

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
15-05-2024 15:04

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General

Target

2024-05-15_6bac12e2aa28b0fc01d1efd6cf6bd68a_cryptolocker.exe
Size

48KB
MD5

6bac12e2aa28b0fc01d1efd6cf6bd68a
SHA1

bc87fcb312b279d48419357bd36dd997406ea268
SHA256

827955284cc9f25bc8d8423f4c5d9b1ba1cde3c231b59e8e8700d886ce887663
SHA512

e37244e6bfce12e657dbb192d00ed8190539168cad764a42ac989bf664c17c2f444b9ef92619353649009bd7d00184e3ca714b8ca63fa76f4176783956548f25
SSDEEP

768:79inqyNR/QtOOtEvwDpjBKccJVODvy3Sp8LC:79mqyNhQMOtEvwDpjBzckqSuG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/848-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000e000000012122-11.dat	CryptoLocker_rule2
behavioral1/memory/848-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/848-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000e000000012122-11.dat	CryptoLocker_set1
behavioral1/memory/848-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2248	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
848	2024-05-15_6bac12e2aa28b0fc01d1efd6cf6bd68a_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 848 wrote to memory of 2248	848	2024-05-15_6bac12e2aa28b0fc01d1efd6cf6bd68a_cryptolocker.exe	28
PID 848 wrote to memory of 2248	848	2024-05-15_6bac12e2aa28b0fc01d1efd6cf6bd68a_cryptolocker.exe	28
PID 848 wrote to memory of 2248	848	2024-05-15_6bac12e2aa28b0fc01d1efd6cf6bd68a_cryptolocker.exe	28
PID 848 wrote to memory of 2248	848	2024-05-15_6bac12e2aa28b0fc01d1efd6cf6bd68a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-15_6bac12e2aa28b0fc01d1efd6cf6bd68a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-15_6bac12e2aa28b0fc01d1efd6cf6bd68a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:848
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2248

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
48KB

MD5
1ae8e913b022292e75877013f0aab587

SHA1
58383fb8accc487e5cc59c093258fdb756e9cd52

SHA256
3c80183c55271000bc75b5017af970cbed6f242a47fc37230740559ca746adad

SHA512
ba9191abd3adf27752ba1c0eae59a8d44c97007b8d667d39e1d7f2962795096e797321bf1eb492b2408f5af86bc237d0fe3e4876025bf07c7a6e08373e629d01

Download Submit
memory/848-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/848-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/848-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/848-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/848-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2248-17-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2248-24-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download