cdae91ddc322e438c907425abe815289d055b32a6656db7a8e1cfc9f70005a0c

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/02/2024, 14:36

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General

Target

2024-02-18_727584a589cee1c561c3f2ccb108de6d_cryptolocker.exe
Size

62KB
MD5

727584a589cee1c561c3f2ccb108de6d
SHA1

68b433d9f871d5b5fc38c3b43be4ed76f2c0bbfa
SHA256

cdae91ddc322e438c907425abe815289d055b32a6656db7a8e1cfc9f70005a0c
SHA512

2a9349f5c316d472d1cc672405d5ba049e9f9eb83477192d58210aff895d07b0c18cd1a7ee86d0870ce78e3a12e8d254882c545e84a188fa4832374ba3203963
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299SQj:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7N

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012274-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012274-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2128	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2188	2024-02-18_727584a589cee1c561c3f2ccb108de6d_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
2188	2024-02-18_727584a589cee1c561c3f2ccb108de6d_cryptolocker.exe
2128	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2188 wrote to memory of 2128	2188	2024-02-18_727584a589cee1c561c3f2ccb108de6d_cryptolocker.exe	28
PID 2188 wrote to memory of 2128	2188	2024-02-18_727584a589cee1c561c3f2ccb108de6d_cryptolocker.exe	28
PID 2188 wrote to memory of 2128	2188	2024-02-18_727584a589cee1c561c3f2ccb108de6d_cryptolocker.exe	28
PID 2188 wrote to memory of 2128	2188	2024-02-18_727584a589cee1c561c3f2ccb108de6d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_727584a589cee1c561c3f2ccb108de6d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_727584a589cee1c561c3f2ccb108de6d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2188
- 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:2128

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
63KB

MD5
aadc42f6cc51fabe033abacf9491f8fa

SHA1
dcc47d3b6d43810ffa6becdf3c425d76e390cc88

SHA256
beb32e4b5bded518a0280c627d5a9caf54738f2f23e4ad5a097a30a396796eb6

SHA512
a658f990a20c405b2a3c40956f38b75303e5d75386599041df147a851a52ca3107e94abab3b3a3209a27fbdc3c813d29709678ff709b0bdc54d24e5046e425c5

Download Submit
memory/2128-23-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2188-0-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2188-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2188-1-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download