145633926f053d37dc5d7d555d444d310e10cbf298f589457a2bcca5eb196860

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20/02/2024, 01:26

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General

Target

2024-02-20_1f70d10feb59a8aa2412c852bdc3deea_cryptolocker.exe
Size

30KB
MD5

1f70d10feb59a8aa2412c852bdc3deea
SHA1

e63d0494f6b086aac1623af56794e7b8daa1098f
SHA256

145633926f053d37dc5d7d555d444d310e10cbf298f589457a2bcca5eb196860
SHA512

b54cd3b4fce2b88fddc5a40bfe0d06ef123479588b84593db0a73e1380097ca77df545f425daf9c03af0d27ad9e8e2a9756b96ab2af8dc3bd1977f0cf6e8d1c9
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9RXmo:b7o/2n1TCraU6GD1a4Xt9Rt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012251-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2672	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2324	2024-02-20_1f70d10feb59a8aa2412c852bdc3deea_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
2324	2024-02-20_1f70d10feb59a8aa2412c852bdc3deea_cryptolocker.exe
2672	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 2672	2324	2024-02-20_1f70d10feb59a8aa2412c852bdc3deea_cryptolocker.exe	28
PID 2324 wrote to memory of 2672	2324	2024-02-20_1f70d10feb59a8aa2412c852bdc3deea_cryptolocker.exe	28
PID 2324 wrote to memory of 2672	2324	2024-02-20_1f70d10feb59a8aa2412c852bdc3deea_cryptolocker.exe	28
PID 2324 wrote to memory of 2672	2324	2024-02-20_1f70d10feb59a8aa2412c852bdc3deea_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-20_1f70d10feb59a8aa2412c852bdc3deea_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_1f70d10feb59a8aa2412c852bdc3deea_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2672

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\rewok.exe

Filesize
31KB

MD5
dad86d97a4aeb071d22236697db36c05

SHA1
4f618dc4b8a609918d2f7bb320d94ae49aa6183f

SHA256
00c02b2f8cb57678c511a7266514db0b42a85e84df47d1634b1ac7f6120b2bea

SHA512
03dde01a72f640d1f31557c6600e18c3be0bda35f1b5cfcc2b4d0a334d401009f643954e58d3ac30b73bdd934091ca967a2b42fdfd948d4fb957d480d1008a00

Download Submit
memory/2324-0-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2324-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2324-8-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2672-18-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download