35989d338a724f36f3fff9f61c2366079b2629e131a12c5fe2d8ebf162150663

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
31/05/2024, 08:29

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General

Target

2024-05-31_93025753cb3f8f540998709ade0b8361_cryptolocker.exe
Size

62KB
MD5

93025753cb3f8f540998709ade0b8361
SHA1

8dad78fcf470d1fd8411dfa6494b8d716b55dddb
SHA256

35989d338a724f36f3fff9f61c2366079b2629e131a12c5fe2d8ebf162150663
SHA512

89dd96544627be5331a67929332a90918a779a902b6ce0179e00804b1fc55bcbc9c239ead3e6871d58bdb2e48ff46eaf37b56b390ac189aa98546c90c7a59724
SSDEEP

768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG95:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2768-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0007000000012120-11.dat	CryptoLocker_rule2
behavioral1/memory/3048-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2768-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3048-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2768-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0007000000012120-11.dat	CryptoLocker_set1
behavioral1/memory/3048-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2768-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3048-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3048	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2768	2024-05-31_93025753cb3f8f540998709ade0b8361_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2768 wrote to memory of 3048	2768	2024-05-31_93025753cb3f8f540998709ade0b8361_cryptolocker.exe	28
PID 2768 wrote to memory of 3048	2768	2024-05-31_93025753cb3f8f540998709ade0b8361_cryptolocker.exe	28
PID 2768 wrote to memory of 3048	2768	2024-05-31_93025753cb3f8f540998709ade0b8361_cryptolocker.exe	28
PID 2768 wrote to memory of 3048	2768	2024-05-31_93025753cb3f8f540998709ade0b8361_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-31_93025753cb3f8f540998709ade0b8361_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_93025753cb3f8f540998709ade0b8361_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2768
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3048

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\misid.exe

Filesize
63KB

MD5
944be653853beab8e1d2b5e20aabe174

SHA1
d3b3e77ad59f5f3dfc2fb0031ccf15c8c019d86c

SHA256
011f6e3dc6669868f071fe2683f915456f7399adf3b71a16c4b25b810b14e792

SHA512
7b0ee6ee53d947d41b53b983741a8a85a5d68a9f0eb8d9487d8f7f7bbbd844eaf22609c42552e369a78f2c1256501df6ff88a5690fd340979a397af0eaa9a5c5

Download Submit
memory/2768-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2768-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2768-2-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2768-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2768-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3048-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3048-25-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download