02b602066be74f0524968f8438f159387cca0c067a6f89fab8ef54109de6cbeb

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19-03-2024 01:28

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General

Target

2024-03-19_ecee75eddb8951bea748e706519ad86d_cryptolocker.exe
Size

50KB
MD5

ecee75eddb8951bea748e706519ad86d
SHA1

789ce5054ea343fd3562e1bec824606683bd3697
SHA256

02b602066be74f0524968f8438f159387cca0c067a6f89fab8ef54109de6cbeb
SHA512

7dde62928ca19fbb4d0250206b95ccaa4f8d14e7e853a94a1fb9b2c92cd415c3ffa6115756f31b6a4074b9c166fa0eb90d89cba093781f40a1e3f6e56d705f73
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIKG:aq7tdgI2MyzNORQtOflIwoHNV2XBFV74

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012248-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012248-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2124	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1684	2024-03-19_ecee75eddb8951bea748e706519ad86d_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1684	2024-03-19_ecee75eddb8951bea748e706519ad86d_cryptolocker.exe
2124	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1684 wrote to memory of 2124	1684	2024-03-19_ecee75eddb8951bea748e706519ad86d_cryptolocker.exe	28
PID 1684 wrote to memory of 2124	1684	2024-03-19_ecee75eddb8951bea748e706519ad86d_cryptolocker.exe	28
PID 1684 wrote to memory of 2124	1684	2024-03-19_ecee75eddb8951bea748e706519ad86d_cryptolocker.exe	28
PID 1684 wrote to memory of 2124	1684	2024-03-19_ecee75eddb8951bea748e706519ad86d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-19_ecee75eddb8951bea748e706519ad86d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_ecee75eddb8951bea748e706519ad86d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2124

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\hurok.exe

Filesize
51KB

MD5
c8c920d0b3c15cbd9017ab06bf273c3c

SHA1
fa321210dccc58adfff603f4812dc16e10a75529

SHA256
acaf782bd65aaf8be0cbee516e9f29baa480fac96d5268cf1c313c44cc676b74

SHA512
4e991117aafb027dc5c69978827478b53bc56dd5218f03155d37505606e219210422392b2b73f17a7fc8056e395c74c5ac128a4a002a1f42ed0a7b8b67ed4d92

Download Submit
memory/1684-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1684-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1684-2-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2124-16-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download