4b80632f9872df1d63b18612561267b581afb15a63b2ef08ec93d9230de990e0

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
28/02/2024, 15:49

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General

Target

2024-02-28_7eac65a0423da77dd4490c6e54135ecf_cryptolocker.exe
Size

74KB
MD5

7eac65a0423da77dd4490c6e54135ecf
SHA1

1fd7c6c0fae5e083c492855cd7b265bc0c25b8bc
SHA256

4b80632f9872df1d63b18612561267b581afb15a63b2ef08ec93d9230de990e0
SHA512

4112fdba34a582e36037c448dc38cc56a8c38d1cfbddfc6eb21ba86c2fa53f5e0ce6133fb04501513187b1333b9ae387eab2b71140482c2dac4b3689d321c3db
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1sQgg:X6a+SOtEvwDpjBZYvQd2x

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012252-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012252-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2992	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2256	2024-02-28_7eac65a0423da77dd4490c6e54135ecf_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 2256 wrote to memory of 2992	2256	2024-02-28_7eac65a0423da77dd4490c6e54135ecf_cryptolocker.exe	28
PID 2256 wrote to memory of 2992	2256	2024-02-28_7eac65a0423da77dd4490c6e54135ecf_cryptolocker.exe	28
PID 2256 wrote to memory of 2992	2256	2024-02-28_7eac65a0423da77dd4490c6e54135ecf_cryptolocker.exe	28
PID 2256 wrote to memory of 2992	2256	2024-02-28_7eac65a0423da77dd4490c6e54135ecf_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-28_7eac65a0423da77dd4490c6e54135ecf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_7eac65a0423da77dd4490c6e54135ecf_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2992

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
74KB

MD5
143e951457336ad23910da9696145d10

SHA1
a74e02071c172c261daef106299ebb8390f0d746

SHA256
6dd5e75478fb2a81f42faec5c09828dd9acd44e301cf04069a30c8df6e75a8cc

SHA512
31be475d95593f74e113a7aed2cd001d259b50b2e206b8074992499c9653cddbabfbb0d0f9e0b010ef5f572c3dfb7f36fa43562df3666a3328192d99a1a0abc8

Download Submit
memory/2256-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2256-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2256-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2992-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2992-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download