9f3757e9a6b164fa608e014e4f2a343301dad771f9942737aff44bad1e4420ab

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27/01/2024, 03:29

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General

Target

2024-01-27_3fc7780544c8a203db6016c07d2b2e61_cryptolocker.exe
Size

100KB
MD5

3fc7780544c8a203db6016c07d2b2e61
SHA1

f33b1671ba1cc690371a096273e76445522d3b2a
SHA256

9f3757e9a6b164fa608e014e4f2a343301dad771f9942737aff44bad1e4420ab
SHA512

79f51db8c40c87ac98c6bdd4bc13ad5d1ffeb4d4f9d5bf973544f383ccfdc7568127664f56f91aaf1e001a1c386e74a6e1343e918418c6af89355587db49da95
SSDEEP

1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNCWw6f4:26a+2OtEvwDpjtzm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00070000000122c4-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00070000000122c4-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2536	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2204	2024-01-27_3fc7780544c8a203db6016c07d2b2e61_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 2204 wrote to memory of 2536	2204	2024-01-27_3fc7780544c8a203db6016c07d2b2e61_cryptolocker.exe	28
PID 2204 wrote to memory of 2536	2204	2024-01-27_3fc7780544c8a203db6016c07d2b2e61_cryptolocker.exe	28
PID 2204 wrote to memory of 2536	2204	2024-01-27_3fc7780544c8a203db6016c07d2b2e61_cryptolocker.exe	28
PID 2204 wrote to memory of 2536	2204	2024-01-27_3fc7780544c8a203db6016c07d2b2e61_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-27_3fc7780544c8a203db6016c07d2b2e61_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_3fc7780544c8a203db6016c07d2b2e61_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2536

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
100KB

MD5
e7367f474c3d822418f76ffc0b4395e8

SHA1
a37adb54f258424788f40968f035cd1b3b0cdae9

SHA256
c99e7a16313adbc500b392dc2bf0ed940a3d93513a41900bd9a43becd5e77241

SHA512
5cd2b6988a2e979c0071ecdef4e5bd863584edc14f0a71e2caa727263f09db2761cab9e23938470aab8e1e6354e8dd722963a29f26256acfdb8c5823625afd9f

Download Submit
memory/2204-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2204-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2204-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2536-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2536-17-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download