ebace89d2f818de7df93bdf2961c654be44bc708509c36f41f2d8b3204fd6fdc

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
30-05-2024 23:04

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General

Target

2024-05-30_7161875766663ba0b78a331841c0ce8a_cryptolocker.exe
Size

64KB
MD5

7161875766663ba0b78a331841c0ce8a
SHA1

701071de185fd977938b909e35bef2e30aca0d6e
SHA256

ebace89d2f818de7df93bdf2961c654be44bc708509c36f41f2d8b3204fd6fdc
SHA512

e6b989fdcc73df6a964680fa044583974cf5e585e7e95f547011defa66dc8ed32dfe0ed066484f41b33823a6950ec126904f48ea02376654459a145e7279f73e
SSDEEP

1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61vSbgtsiU:BbdDmjr+OtEvwDpjM8V

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2716-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d00000001226b-11.dat	CryptoLocker_rule2
behavioral1/memory/1056-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2716-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1056-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/1056-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2716-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1056-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/memory/2716-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x000d00000001226b-11.dat	UPX
behavioral1/memory/1056-17-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2716-16-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/1056-27-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
1056	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2716	2024-05-30_7161875766663ba0b78a331841c0ce8a_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 2716 wrote to memory of 1056	2716	2024-05-30_7161875766663ba0b78a331841c0ce8a_cryptolocker.exe	28
PID 2716 wrote to memory of 1056	2716	2024-05-30_7161875766663ba0b78a331841c0ce8a_cryptolocker.exe	28
PID 2716 wrote to memory of 1056	2716	2024-05-30_7161875766663ba0b78a331841c0ce8a_cryptolocker.exe	28
PID 2716 wrote to memory of 1056	2716	2024-05-30_7161875766663ba0b78a331841c0ce8a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-30_7161875766663ba0b78a331841c0ce8a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_7161875766663ba0b78a331841c0ce8a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2716
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1056

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
65KB

MD5
ad7759ba2f66db8dd95d621ae25fd16b

SHA1
cd82687e0ce38145e76b175da71a0a9d9b087e86

SHA256
0790d498483b7c133538d235e94129f5e9b01b74ef7b23fa0621716b06f5ac40

SHA512
5314e92c0c0d2c797280863403b88acbc46e31e4d9e189c755005c4a8de6ec5f96914baf98fcbf910a1a77a2660d72ec4dedd01b3e1c0d63e94c2cd3eba137dd

Download Submit
memory/1056-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1056-19-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1056-26-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1056-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2716-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2716-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2716-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2716-9-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2716-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download