93495626c607398182101b53da3530d78c551a553eea407b0671f0cf467eb906

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09-05-2024 05:05

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General

Target

2024-05-09_a72daeba7734997b3bbc87eda6c33319_cryptolocker.exe
Size

57KB
MD5

a72daeba7734997b3bbc87eda6c33319
SHA1

089b21273dcf136f3bcd1723a0c500a6e1c224ce
SHA256

93495626c607398182101b53da3530d78c551a553eea407b0671f0cf467eb906
SHA512

ad680b089686fbae581846ac56309b0379768ace1c5593201e98250f0cc32d3469129b0f8596dee34dc806fa5d73f18432d1e930a05774adbedbe15a078d977d
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/iVTab3GRuv3VylsPQQWTa/2wGa:79mqyNhQMOtEvwDpjBPY7xv3gy9WTAca

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2972-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001444f-11.dat	CryptoLocker_rule2
behavioral1/memory/2540-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2972-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2972-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001444f-11.dat	CryptoLocker_set1
behavioral1/memory/2540-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2972-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2540	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2972	2024-05-09_a72daeba7734997b3bbc87eda6c33319_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 2972 wrote to memory of 2540	2972	2024-05-09_a72daeba7734997b3bbc87eda6c33319_cryptolocker.exe	28
PID 2972 wrote to memory of 2540	2972	2024-05-09_a72daeba7734997b3bbc87eda6c33319_cryptolocker.exe	28
PID 2972 wrote to memory of 2540	2972	2024-05-09_a72daeba7734997b3bbc87eda6c33319_cryptolocker.exe	28
PID 2972 wrote to memory of 2540	2972	2024-05-09_a72daeba7734997b3bbc87eda6c33319_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-09_a72daeba7734997b3bbc87eda6c33319_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_a72daeba7734997b3bbc87eda6c33319_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2540

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
57KB

MD5
b80a31aa3e1d18d93c3de70f01cf55b5

SHA1
53c6ee2aaf88443222a88959146aec4c2f8e95d8

SHA256
a1bbe3bdfc99a9239912e50a17028b224bfd6f7bc3cb5bfd2b88dda92bf11504

SHA512
e547276c10ceb3a0c16808743a0bdf4203dca6aa1ebd4a07f15ce772ba8440c06e04602891e939492e44def324d830842fbd343a86c98e94fd208690f71e59b2

Download Submit
memory/2540-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2972-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2972-1-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2972-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2972-9-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2972-14-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download