b1ebcffa6843b81df89eefb069949f37009d1ab8bc7cfc651523eee2791de9ac

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
15/06/2024, 18:29

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General

Target

2024-06-15_1dcaa0044fa6100c66e5d77c8eb74e96_cryptolocker.exe
Size

47KB
MD5

1dcaa0044fa6100c66e5d77c8eb74e96
SHA1

859653f07d15c6342c734a0d4af9e5cf3811203d
SHA256

b1ebcffa6843b81df89eefb069949f37009d1ab8bc7cfc651523eee2791de9ac
SHA512

4c1fb1e5e9f0e02558f17dcfe7f455a334bd0368cf2c59e80bc36d69c829e835388c8077b18095792e160dfffa0a9795321d4e8cc17f851596fc2e33b0e6b742
SSDEEP

384:e/4wODQkzonAYsju5N/surDQtOOtEvwDpjqIGROqS/WccJVJwi2B5oCCM8CLW2Vl:79inqyNR/QtOOtEvwDpjBKccJVODvy3U

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2372-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000500000000b309-11.dat	CryptoLocker_rule2
behavioral1/memory/2372-13-0x0000000000620000-0x000000000062F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2372-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2372-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000500000000b309-11.dat	CryptoLocker_set1
behavioral1/memory/2372-13-0x0000000000620000-0x000000000062F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2372-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2488	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2372	2024-06-15_1dcaa0044fa6100c66e5d77c8eb74e96_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 2372 wrote to memory of 2488	2372	2024-06-15_1dcaa0044fa6100c66e5d77c8eb74e96_cryptolocker.exe	28
PID 2372 wrote to memory of 2488	2372	2024-06-15_1dcaa0044fa6100c66e5d77c8eb74e96_cryptolocker.exe	28
PID 2372 wrote to memory of 2488	2372	2024-06-15_1dcaa0044fa6100c66e5d77c8eb74e96_cryptolocker.exe	28
PID 2372 wrote to memory of 2488	2372	2024-06-15_1dcaa0044fa6100c66e5d77c8eb74e96_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-15_1dcaa0044fa6100c66e5d77c8eb74e96_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-15_1dcaa0044fa6100c66e5d77c8eb74e96_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2488

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\asih.exe

Filesize
47KB

MD5
11d61962772c699e50222e9058acbf28

SHA1
634974e60ca3886cb0c1c85ba229233b3198e63e

SHA256
1bcb1453ddf2e47f58fed710985e5531b94e47624d10630ecc1b57371a7dab07

SHA512
ce9e4184e6c721887c0ff24e47dc8f2745f00cef5f9e1f546caa725eff8b12e187c670eb63c69113d2ca615dd9c9ee8844d63c5e5d9492ed6d530c1f07ccabc5

Download Submit
memory/2372-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2372-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2372-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2372-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2372-13-0x0000000000620000-0x000000000062F000-memory.dmp

Filesize
60KB

Download
memory/2372-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2488-18-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2488-25-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download