f57c24c7461d67e55443fd09f1435b75947e2a0fa373317aef0158b2f9d779ed

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
08/06/2024, 20:48

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General

Target

2024-06-08_d39be122e002879b51f0c37bc498e76e_cryptolocker.exe
Size

49KB
MD5

d39be122e002879b51f0c37bc498e76e
SHA1

56d94189d90e46a8dcc20f245b4a68953f4e181e
SHA256

f57c24c7461d67e55443fd09f1435b75947e2a0fa373317aef0158b2f9d779ed
SHA512

97ce24a8007cefa0f8e811706a99d3e81764b1a7c5b8789a94f2cc96bac711fbdc2fe7e330e7adcef354d61e76a29afeeadf83dbb16b17b1d70d492a83029527
SSDEEP

768:79inqyNR/QtOOtEvwDpjBKccJVODvy3Sp8LM:79mqyNhQMOtEvwDpjBzckqSuw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2192-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000014e5a-11.dat	CryptoLocker_rule2
behavioral1/memory/2192-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2000-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2192-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000014e5a-11.dat	CryptoLocker_set1
behavioral1/memory/2192-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2000-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2000	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2192	2024-06-08_d39be122e002879b51f0c37bc498e76e_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 2192 wrote to memory of 2000	2192	2024-06-08_d39be122e002879b51f0c37bc498e76e_cryptolocker.exe	28
PID 2192 wrote to memory of 2000	2192	2024-06-08_d39be122e002879b51f0c37bc498e76e_cryptolocker.exe	28
PID 2192 wrote to memory of 2000	2192	2024-06-08_d39be122e002879b51f0c37bc498e76e_cryptolocker.exe	28
PID 2192 wrote to memory of 2000	2192	2024-06-08_d39be122e002879b51f0c37bc498e76e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-08_d39be122e002879b51f0c37bc498e76e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-08_d39be122e002879b51f0c37bc498e76e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2000

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
49KB

MD5
9148a6457b273696bab0b23f3348debd

SHA1
ad9f2b584ff886cb9c9b87abcccc977021bcaf19

SHA256
46f0ce5884187f2e87d467d228f4c22ae2168156ebec7409f5a0b326ee42e529

SHA512
b3a7b33355bd38e31a4615b24cd12f43dccf3d24ab2158e3ad3252f41a1140cf540d8ad3bf4c638704e8c450d4a484c89c3e60aaf05c360916a0ca243cfdf86b

Download Submit
memory/2000-17-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2000-25-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2000-24-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2192-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2192-2-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/2192-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2192-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2192-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download