1eed0bad17a92c4c08a8a86082b58925979395d38cb348191c674e3d33900c30

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
23/05/2024, 22:22

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General

Target

2024-05-23_0db333c2c2153c6b4b7d2b1659d50cfa_cryptolocker.exe
Size

54KB
MD5

0db333c2c2153c6b4b7d2b1659d50cfa
SHA1

af6d7acddc1404fe362f873066118220f431d5fa
SHA256

1eed0bad17a92c4c08a8a86082b58925979395d38cb348191c674e3d33900c30
SHA512

27ff0e2d2ed45d8a4cd5bd2caff2f9013bc7eda66ce0d8d661d6cb63628689b6e17d832f470c1e833d8dfde6a41df532622f768c945ed325fd720ed013d41733
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6E5:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7w

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012279-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012279-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2444	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1740	2024-05-23_0db333c2c2153c6b4b7d2b1659d50cfa_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
1740	2024-05-23_0db333c2c2153c6b4b7d2b1659d50cfa_cryptolocker.exe
2444	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 2444	1740	2024-05-23_0db333c2c2153c6b4b7d2b1659d50cfa_cryptolocker.exe	28
PID 1740 wrote to memory of 2444	1740	2024-05-23_0db333c2c2153c6b4b7d2b1659d50cfa_cryptolocker.exe	28
PID 1740 wrote to memory of 2444	1740	2024-05-23_0db333c2c2153c6b4b7d2b1659d50cfa_cryptolocker.exe	28
PID 1740 wrote to memory of 2444	1740	2024-05-23_0db333c2c2153c6b4b7d2b1659d50cfa_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-23_0db333c2c2153c6b4b7d2b1659d50cfa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_0db333c2c2153c6b4b7d2b1659d50cfa_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1740
- 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:2444

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
54KB

MD5
47e5344e9dd3ec0ca9dce8c56c9593e9

SHA1
17fe2e42cd072642a58df768133f2b08a7823828

SHA256
0159cf9bc6ce3131653ea1ca971effbb1ce113a8d9d5ffdc5e8676c7fd6426a4

SHA512
93f6d8abb65c0dfd8eb25fc578214a3f3765b1b0b624541d06a6aa78947681dd2e1e124dfa6a29ae7647676fbe1b855d5aaa43d9a4579fc7b9a916beb3bd35f7

Download Submit
memory/1740-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1740-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1740-8-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2444-23-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download