54a144181f0bd513364b8999db018836ad3051cfcd1d22a1a625c0baa6fdbb4e

Analysis

max time kernel
132s
max time network
142s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12/02/2024, 20:33

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General

Target

2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe
Size

54KB
MD5

df55cf0e5aa893e08b81a61df5ac114c
SHA1

b97112ea098a6a904793f6451f891ed5c40dd755
SHA256

54a144181f0bd513364b8999db018836ad3051cfcd1d22a1a625c0baa6fdbb4e
SHA512

42fee0936b3df09035b97605328bf044a537f983f1066bc18a72b3819018462e145c678a94cd0b034e1ebf253134aa50804f82fa3180189feb7cb3b7940a3bd4
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTiSfQaV2L0zNnm:X6QFElP6n+gJBMOtEvwDpjBtE1yILum

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001223b-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001223b-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2760	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2120	2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_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 2120 wrote to memory of 2760	2120	2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe	28
PID 2120 wrote to memory of 2760	2120	2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe	28
PID 2120 wrote to memory of 2760	2120	2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe	28
PID 2120 wrote to memory of 2760	2120	2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2760

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
54KB

MD5
9ae4ecab7cce36360baefcf119bbfcf5

SHA1
a6ba43302a965cc3cdb8c5a0d7ef9c83f4dcc6ed

SHA256
d950f5942460fda1187401ba1941d95d00b54a928beb836a0e43dc26fe0a286c

SHA512
69d811b4190c7cd97d3e4b5678cfbf772853bb07cfbd55cb83d72d48d545f6cf0daab35e5e5359a54ca7a6b20ec3d26d8c1c94dcbdeb2fdae06f320ae4d3ed77

Download Submit
memory/2120-0-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2120-1-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2120-7-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2760-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2760-17-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download