21599aa9480db754297fe007f2c5cfda3ffa78a063d8eda0fce726cfe2f1ee43

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14-02-2024 03:42

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General

Target

2024-02-14_00e4eac2a2c119f16f542c3fa9ebc602_cryptolocker.exe
Size

54KB
MD5

00e4eac2a2c119f16f542c3fa9ebc602
SHA1

25dff950f94fd4bde4c7f5b92055a225ee6e76dc
SHA256

21599aa9480db754297fe007f2c5cfda3ffa78a063d8eda0fce726cfe2f1ee43
SHA512

374859bbe1fc423cd2a97fa49eaa50134edafb057d4a6d94f9b327bdda28957873e938c03590f205d7ec0ac2bccbe0ca196131e595c8d2f27eb72127767c9a5c
SSDEEP

1536:X6QFElP6n+gJBMOtEvwDpjBtE1yILJ0w4:X6a+BOtEvwDpjBOk

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
2812	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2896	2024-02-14_00e4eac2a2c119f16f542c3fa9ebc602_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 2896 wrote to memory of 2812	2896	2024-02-14_00e4eac2a2c119f16f542c3fa9ebc602_cryptolocker.exe	28
PID 2896 wrote to memory of 2812	2896	2024-02-14_00e4eac2a2c119f16f542c3fa9ebc602_cryptolocker.exe	28
PID 2896 wrote to memory of 2812	2896	2024-02-14_00e4eac2a2c119f16f542c3fa9ebc602_cryptolocker.exe	28
PID 2896 wrote to memory of 2812	2896	2024-02-14_00e4eac2a2c119f16f542c3fa9ebc602_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_00e4eac2a2c119f16f542c3fa9ebc602_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_00e4eac2a2c119f16f542c3fa9ebc602_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2812

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
54KB

MD5
9163a2f5ac9ddc539dc8418ce7e89e29

SHA1
e7d19f401f638e4b111136e78a391c3f108a4821

SHA256
1c21b1bd772624b4c1c945a5b2ecd11c2de2c8ed205745b83a9d3a3c450ac956

SHA512
aa6af710573768e240b8009ac1c514aca4fc713176c78c10da5bacee4f583b66f813ca24bcd039b229234db1d766f26b43b29bb88e8bd1d05141d67c5b7f6405

Download Submit
memory/2896-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2896-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2896-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download