1874546ca2388e7877a03ef575c35b46bdc83475c95b6c71c547fffefb61787b

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
23/01/2024, 12:34

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General

Target

2024-01-23_88bc52bf3788b5b8aeaabf7584439241_cryptolocker.exe
Size

37KB
MD5

88bc52bf3788b5b8aeaabf7584439241
SHA1

068b9b6287a7947f006aa71090dd6c97fa68246f
SHA256

1874546ca2388e7877a03ef575c35b46bdc83475c95b6c71c547fffefb61787b
SHA512

3b6a4ef39c13663a326e4be99ac7a71517732e298e3d4f6f2ff5c25b881fe468449dc1d2aa6fba16546202de273a390658b2c8a059e3fdcffc128c72d74d2701
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcfZ:X6QFElP6n+gJQMOtEvwDpjBsYK6Z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012266-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012266-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2072	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2652	2024-01-23_88bc52bf3788b5b8aeaabf7584439241_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 2652 wrote to memory of 2072	2652	2024-01-23_88bc52bf3788b5b8aeaabf7584439241_cryptolocker.exe	28
PID 2652 wrote to memory of 2072	2652	2024-01-23_88bc52bf3788b5b8aeaabf7584439241_cryptolocker.exe	28
PID 2652 wrote to memory of 2072	2652	2024-01-23_88bc52bf3788b5b8aeaabf7584439241_cryptolocker.exe	28
PID 2652 wrote to memory of 2072	2652	2024-01-23_88bc52bf3788b5b8aeaabf7584439241_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-23_88bc52bf3788b5b8aeaabf7584439241_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-23_88bc52bf3788b5b8aeaabf7584439241_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2072

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
38KB

MD5
4a28cb3c590de46f3368805544e54483

SHA1
a9c8e0618d1dab733374ae3b4f8236b715531018

SHA256
6399f53711445edf4f00fdb3996a324bc13ccf0057f608e34fb4a5525433c1a1

SHA512
f2c28f7b5bb4c3d3da6391358f7a7da28f04b387acc04a5a8db739d0da85d4f5d3c03db600199ab910c08d33270bded33535236e5ed471b47b9b6cd46bfa7b40

Download Submit
memory/2072-15-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2072-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2652-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2652-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2652-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download