7caddda27cafc2d8c9b840e795b383193dc1c80d14dad0bf3cb6940668db73c5

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29-04-2024 03:57

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General

Target

2024-04-29_ee34df132bb64b552e2ff40217852b8b_cryptolocker.exe
Size

67KB
MD5

ee34df132bb64b552e2ff40217852b8b
SHA1

fef3d89cd49fa78507cbf0e06f85ac2946f96ffe
SHA256

7caddda27cafc2d8c9b840e795b383193dc1c80d14dad0bf3cb6940668db73c5
SHA512

c4dcbc2a58af5bb79f3c53e19a1e87073665522b3b28cbfb513b739182d5d660bf63f01f2540ec5abfccea45a852747ac1da4a112704ee0a4f4fc0a88d5ab37b
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLU:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7l

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001450b-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001450b-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2940	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2944	2024-04-29_ee34df132bb64b552e2ff40217852b8b_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
2944	2024-04-29_ee34df132bb64b552e2ff40217852b8b_cryptolocker.exe
2940	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2944 wrote to memory of 2940	2944	2024-04-29_ee34df132bb64b552e2ff40217852b8b_cryptolocker.exe	28
PID 2944 wrote to memory of 2940	2944	2024-04-29_ee34df132bb64b552e2ff40217852b8b_cryptolocker.exe	28
PID 2944 wrote to memory of 2940	2944	2024-04-29_ee34df132bb64b552e2ff40217852b8b_cryptolocker.exe	28
PID 2944 wrote to memory of 2940	2944	2024-04-29_ee34df132bb64b552e2ff40217852b8b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-29_ee34df132bb64b552e2ff40217852b8b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-29_ee34df132bb64b552e2ff40217852b8b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2944
- 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:2940

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

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Downloads

\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
67KB

MD5
23e273d98fd65eeeed2610df65eed226

SHA1
c0f99fc6b77c2ce0d5999f4bb8242091fee120ad

SHA256
50b063252531edbb3d928ebc6760d99d4288cb0b06cac1104df40bd58f574d8e

SHA512
3d7a26169c681dfd341d7b40c5d399062f6388997f8e6ed9a763c295f1e52e5fb6cc8c349a69b664931baec91fa037ac7488761b34bcd1b5e268d67413d06b5b

Download Submit
memory/2940-23-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2944-0-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2944-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2944-8-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download