8fc2f9001d875fd0d411fd8949f24887ba10fbb60761a66884c3ec82e2b1b593

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/03/2024, 05:28

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General

Target

2024-03-09_4b96bdf2520a0666935c80e5932f8220_cryptolocker.exe
Size

63KB
MD5

4b96bdf2520a0666935c80e5932f8220
SHA1

88e5fe1afc5dd9a7bc09d9cb523d4813716cfcf8
SHA256

8fc2f9001d875fd0d411fd8949f24887ba10fbb60761a66884c3ec82e2b1b593
SHA512

d46a8f66d53d5779d6e037e6f0c1da117eb453c87e9dc287514c35b9847195f2c9d3e3a79284375ef73cf8685a7434cbfbb009d26eb66b4dbdbcc8367cb4175a
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbmh85u:V6a+pOtEvwDpjvN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224f-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224f-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2292	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2004	2024-03-09_4b96bdf2520a0666935c80e5932f8220_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 2004 wrote to memory of 2292	2004	2024-03-09_4b96bdf2520a0666935c80e5932f8220_cryptolocker.exe	28
PID 2004 wrote to memory of 2292	2004	2024-03-09_4b96bdf2520a0666935c80e5932f8220_cryptolocker.exe	28
PID 2004 wrote to memory of 2292	2004	2024-03-09_4b96bdf2520a0666935c80e5932f8220_cryptolocker.exe	28
PID 2004 wrote to memory of 2292	2004	2024-03-09_4b96bdf2520a0666935c80e5932f8220_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-09_4b96bdf2520a0666935c80e5932f8220_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_4b96bdf2520a0666935c80e5932f8220_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2292

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
63KB

MD5
d9da40114872cdf7d1dc16092e239b0b

SHA1
539d6658be388228578b5c06104e18c32106bb8d

SHA256
7237b953fad575dec9938e8ae3954311e8026aa2ec39a70211598628039307fa

SHA512
3ab0e8acd253d0d00b2a93b5e658708083bae73fc831fc806102bde12ac3f3421840a2d2486a7fef502b2d02e1a12c1586987fd0c404ab325d2d166e7b7c0925

Download Submit
memory/2004-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2004-1-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2004-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2292-16-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2292-15-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download