c62a44b8b69687a69da464a1d7c955a1c29cde9443ecc04029b9ac9aaa177324

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
12/05/2024, 06:42

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General

Target

2024-05-12_eda0f69644f0cc5b82a92d0f86648f9c_cryptolocker.exe
Size

39KB
MD5

eda0f69644f0cc5b82a92d0f86648f9c
SHA1

170cc74b2099da87a1096b171e3197e1bd214a1d
SHA256

c62a44b8b69687a69da464a1d7c955a1c29cde9443ecc04029b9ac9aaa177324
SHA512

5528b00cacae7cb8848b604652da703ece3779a226ce8d97a22085d3af208ff5215833e775208bc142546612326ad462fcd195520cad575b9a087dfea1a02b94
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYaBx:qDdFJy3QMOtEvwDpjjWMl7TdX

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1684-1-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012280-11.dat	CryptoLocker_rule2
behavioral1/memory/2312-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1684-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2312-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1684-1-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000012280-11.dat	CryptoLocker_set1
behavioral1/memory/2312-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1684-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2312-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/memory/1684-1-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x0009000000012280-11.dat	UPX
behavioral1/memory/2312-17-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/1684-15-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2312-27-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2312	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1684	2024-05-12_eda0f69644f0cc5b82a92d0f86648f9c_cryptolocker.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1684-1-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0009000000012280-11.dat	upx
behavioral1/memory/2312-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1684-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2312-27-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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 1684 wrote to memory of 2312	1684	2024-05-12_eda0f69644f0cc5b82a92d0f86648f9c_cryptolocker.exe	28
PID 1684 wrote to memory of 2312	1684	2024-05-12_eda0f69644f0cc5b82a92d0f86648f9c_cryptolocker.exe	28
PID 1684 wrote to memory of 2312	1684	2024-05-12_eda0f69644f0cc5b82a92d0f86648f9c_cryptolocker.exe	28
PID 1684 wrote to memory of 2312	1684	2024-05-12_eda0f69644f0cc5b82a92d0f86648f9c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-12_eda0f69644f0cc5b82a92d0f86648f9c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_eda0f69644f0cc5b82a92d0f86648f9c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2312

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
39KB

MD5
7fd8392aae7e70145f96763aa7b6a89a

SHA1
3791374540b37c6a59b37b7b4c96aecd62e650fb

SHA256
dfaf9ff2102744bd71c1c2215d74333c8f38a94799de6b153849218a9d7621f2

SHA512
425f79e338d30884962d44ac67f3c960d95ed1c395ef2b76600b4da8665ba695d5771f796720233a18dc2adfed5cdda48f8cbeb95e860413cc37eacbce7ebd2f

Download Submit
memory/1684-1-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1684-0-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1684-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1684-9-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1684-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2312-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2312-19-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2312-26-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2312-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download