5eda382d3da7c37d50870ceeeffa57d5ad0bc321f15daa74f02d0ade470333b9

Analysis

max time kernel
150s
max time network
157s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16/03/2024, 04:29

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General

Target

2024-03-16_197d7b87a582eb3ae01252d50b343ca8_cryptolocker.exe
Size

47KB
MD5

197d7b87a582eb3ae01252d50b343ca8
SHA1

1c5e8436ffa48aa7c4b1cf9a338ff473f3ab3e36
SHA256

5eda382d3da7c37d50870ceeeffa57d5ad0bc321f15daa74f02d0ade470333b9
SHA512

8e1012367a491c4cbd8cea67bc6c441041e6946cd7375d58efc25a51a63a9a540a5ec5c56063e237f597b07e4e26f64bf8ec2933aa0e057047aaaf8f749b1412
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpebVIYLHA3Kx1:o1KhxqwtdgI2MyzNORQtOflIwoHNV2X0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012247-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012247-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2096	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2900	2024-03-16_197d7b87a582eb3ae01252d50b343ca8_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
2900	2024-03-16_197d7b87a582eb3ae01252d50b343ca8_cryptolocker.exe
2096	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2900 wrote to memory of 2096	2900	2024-03-16_197d7b87a582eb3ae01252d50b343ca8_cryptolocker.exe	28
PID 2900 wrote to memory of 2096	2900	2024-03-16_197d7b87a582eb3ae01252d50b343ca8_cryptolocker.exe	28
PID 2900 wrote to memory of 2096	2900	2024-03-16_197d7b87a582eb3ae01252d50b343ca8_cryptolocker.exe	28
PID 2900 wrote to memory of 2096	2900	2024-03-16_197d7b87a582eb3ae01252d50b343ca8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-16_197d7b87a582eb3ae01252d50b343ca8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-16_197d7b87a582eb3ae01252d50b343ca8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2900
- 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:2096

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
48KB

MD5
43eb60f5174f8184a28382b52f6f325a

SHA1
522439d9f937b60c3ddc4945237fd4e08ab5363a

SHA256
83d51def423d85d1f0de9802da7eacc1bc1ed972f524faf1545ddd2c7212c02c

SHA512
747300c2d971f111150cac6565148bc9519d2e06b9f0265e224b3d03264464f34cbe6a5a89ece1708dcc6abe2aeb07cdaa3afdc7d612c7f32e2856cbac33e30c

Download Submit
memory/2096-17-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2900-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2900-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2900-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download