fe697a4ac96c951d971aa3ceb4176b6804ae102eaea2085a6f93c9dd12ef7447

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
14/02/2024, 04:01

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General

Target

2024-02-14_89c5c692660532dc2cda3ccab88e4aca_cryptolocker.exe
Size

68KB
MD5

89c5c692660532dc2cda3ccab88e4aca
SHA1

f82c119e063540d2ef7baa0f389594cba1bcd563
SHA256

fe697a4ac96c951d971aa3ceb4176b6804ae102eaea2085a6f93c9dd12ef7447
SHA512

a725b126eb95f2ce299336f3c6358dedfc8ce581efe8ff16bb225b3227acc461a26ae934e5d30e9d71ac309abe6ea744e145d8b97d7888350984e4689e5b39c0
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUbeF:DW60sllyWOtEvwDpjwF852

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2380-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000015626-11.dat	CryptoLocker_rule2
behavioral1/memory/2380-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2820-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2380-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000015626-11.dat	CryptoLocker_set1
behavioral1/memory/2380-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2820-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2820	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2380	2024-02-14_89c5c692660532dc2cda3ccab88e4aca_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 2380 wrote to memory of 2820	2380	2024-02-14_89c5c692660532dc2cda3ccab88e4aca_cryptolocker.exe	28
PID 2380 wrote to memory of 2820	2380	2024-02-14_89c5c692660532dc2cda3ccab88e4aca_cryptolocker.exe	28
PID 2380 wrote to memory of 2820	2380	2024-02-14_89c5c692660532dc2cda3ccab88e4aca_cryptolocker.exe	28
PID 2380 wrote to memory of 2820	2380	2024-02-14_89c5c692660532dc2cda3ccab88e4aca_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_89c5c692660532dc2cda3ccab88e4aca_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_89c5c692660532dc2cda3ccab88e4aca_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2820

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
69KB

MD5
ca8fc72b950016e262086ff9830ccc57

SHA1
26db3875bc23260b29b67fa00cdc2b712d7b37a2

SHA256
0369af51fc1fefb59976f412e6d020675a077147e1330baf4b4672721bc384db

SHA512
0a8374a9cb1845e9cae867c2f3648afc534736c65ebcd8a40ca3da7a9628324fd36f8eeb7c01f67c831214cf87c04b775db059d6258a9225f977fcd3604b9532

Download Submit
memory/2380-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2380-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2380-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2380-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2380-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2820-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2820-18-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2820-20-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download