497aa5850a837cc8e6300451222348bdec15dae49abe9379ae474466aad4c854

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26/01/2024, 13:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-26_20d36e99d76fd9d36f95bec56e5b3c15_cryptolocker.exe
Size

68KB
MD5

20d36e99d76fd9d36f95bec56e5b3c15
SHA1

c5764befe82194b1f15565c65c2f814cfb62bd40
SHA256

497aa5850a837cc8e6300451222348bdec15dae49abe9379ae474466aad4c854
SHA512

3339f3f75cb4699e9195cbd45a97e9a604b8406e9c0b943ff7f399e9592dcc51a1c53c46906136ef677dc78fa44714ed29678d506ce7e19f4f4573e7617ae72f
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKU2:DW60sllyWOtEvwDpjwF85U

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/2148-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001224e-14.dat	CryptoLocker_rule2
behavioral1/memory/2216-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/2148-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a00000001224e-14.dat	CryptoLocker_set1
behavioral1/memory/2216-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2216	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2148	2024-01-26_20d36e99d76fd9d36f95bec56e5b3c15_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 2148 wrote to memory of 2216	2148	2024-01-26_20d36e99d76fd9d36f95bec56e5b3c15_cryptolocker.exe	28
PID 2148 wrote to memory of 2216	2148	2024-01-26_20d36e99d76fd9d36f95bec56e5b3c15_cryptolocker.exe	28
PID 2148 wrote to memory of 2216	2148	2024-01-26_20d36e99d76fd9d36f95bec56e5b3c15_cryptolocker.exe	28
PID 2148 wrote to memory of 2216	2148	2024-01-26_20d36e99d76fd9d36f95bec56e5b3c15_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-26_20d36e99d76fd9d36f95bec56e5b3c15_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_20d36e99d76fd9d36f95bec56e5b3c15_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2216

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

Loading Replay Monitor...

Downloads

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

Filesize
68KB

MD5
99b3972a82976571fab103aa13f6e8b1

SHA1
e209269d0b567b50dfc6299f9becee7e39453f91

SHA256
cc503ed290ee670fc74ab180cbdbb6b9d20598d3a873265d182792fcd84d187a

SHA512
8fa4ae66748214e15575412324d01c7c64ace3196aca34e7ea75eeb3ecc836513ea1990b1cf9e383bcfc4544550cc1363d7bc38f51625ee7487ef3b7483969dc

Download Submit
memory/2148-8-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2148-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2148-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2148-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2216-24-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2216-17-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2216-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download