ec556b654a240b7b256cb9a8ae785963fd232e18e6c48e896272984eca847d4f

Analysis

max time kernel
150s
max time network
157s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
09/05/2024, 20:24

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General

Target

2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe
Size

68KB
MD5

3042696e30608a27beae9522dea2a2b6
SHA1

302071c513bf13d71a834c43b42a13720bcc8257
SHA256

ec556b654a240b7b256cb9a8ae785963fd232e18e6c48e896272984eca847d4f
SHA512

75c368ecc0344840272a7fd759f730d18cef3295fa1cb789e979158e272b73aed6a5a8a11c9484980200b4c3c774f597209db700ca6510c123796744a30c6b9f
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLEZ:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7h

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001226b-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001226b-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2816	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
3048	2024-05-09_3042696e30608a27beae9522dea2a2b6_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
3048	2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe
2816	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2816	3048	2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe	28
PID 3048 wrote to memory of 2816	3048	2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe	28
PID 3048 wrote to memory of 2816	3048	2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe	28
PID 3048 wrote to memory of 2816	3048	2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3048
- 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:2816

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
68KB

MD5
5d0bcb4e844cb46ba469ce074ced48c9

SHA1
9b77646caaefc4c983621e95c1382020e05a8f32

SHA256
464a1b783d6c73ae57f0a21b2b697b66ac97b0fe93d3003e1764fe32b6018e74

SHA512
7bfb185c4ca59e05190336cac00711c06c66ce92d7309e6302e9be20728e8e3a5be3d7faafb55ee6607411d7924b3856926df8650c5a253d091eb76a68d52c7d

Download Submit
memory/2816-23-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/3048-0-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/3048-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3048-8-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download