c17b90434e71d60695070efd00fbbce84fd5b67bd4afda4b7d9b535d063b8bec

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17/04/2024, 15:35

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General

Target

2024-04-17_87307b110ddb0f43a7c1946c8100efef_cryptolocker.exe
Size

39KB
MD5

87307b110ddb0f43a7c1946c8100efef
SHA1

36b2768be7d64e95d6ada1540572c236646d2a8c
SHA256

c17b90434e71d60695070efd00fbbce84fd5b67bd4afda4b7d9b535d063b8bec
SHA512

d53a0057cb69b4896e65749f62a8e27606121f38c10178d63a52e60dc44faa7b2ffec2bc354ca4ef504147a2188be9ae467041bc67affd0c00c05eba231b8a62
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcfrl:X6QFElP6n+gJQMOtEvwDpjBsYK6rl

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1972	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2032	2024-04-17_87307b110ddb0f43a7c1946c8100efef_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 2032 wrote to memory of 1972	2032	2024-04-17_87307b110ddb0f43a7c1946c8100efef_cryptolocker.exe	28
PID 2032 wrote to memory of 1972	2032	2024-04-17_87307b110ddb0f43a7c1946c8100efef_cryptolocker.exe	28
PID 2032 wrote to memory of 1972	2032	2024-04-17_87307b110ddb0f43a7c1946c8100efef_cryptolocker.exe	28
PID 2032 wrote to memory of 1972	2032	2024-04-17_87307b110ddb0f43a7c1946c8100efef_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-17_87307b110ddb0f43a7c1946c8100efef_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-17_87307b110ddb0f43a7c1946c8100efef_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1972

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
39KB

MD5
fae9b91c30c3c727fa650463c5399445

SHA1
e7893c56e228d95909fb9cd298eeb7fca19a7b08

SHA256
9330b241af2389fb4cf76ccd7274750cf27a651eff40584a39db46d1489859e9

SHA512
93715eb2fcc3afde7d9a1b30fe7c40443089d2045ad4bcee98aa848700d2c5393ca2a7a2609d6cce4d5048d165c87e88ecca78bfff670cef94cab6ac4213e79d

Download Submit
memory/1972-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2032-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2032-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2032-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download