cff3aeac6ec2b7afc9d01a2c56ad8f72de4ad30ac365df489b58f95ce7b18a22

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
20-06-2024 05:33

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General

Target

2024-06-20_eba179d2b365ffc8cdb4f354d2e9b53f_cryptolocker.exe
Size

48KB
MD5

eba179d2b365ffc8cdb4f354d2e9b53f
SHA1

df76feca67d2aedcc9cfd1ce4a06d63030c1b0ae
SHA256

cff3aeac6ec2b7afc9d01a2c56ad8f72de4ad30ac365df489b58f95ce7b18a22
SHA512

bcc2fa137e81d33fc97359e743d161d596a8b5e534a3542be2ce389edc2d100c65a2e7296bcde962e552792ac950f4ac845dde8378c9a288b3f9579ec8b54b1b
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPyN:P6QFElP6k+MRQMOtEvwDpjBQpVX3N

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1668-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d00000001226b-11.dat	CryptoLocker_rule2
behavioral1/memory/1668-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2152-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2152-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1668-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d00000001226b-11.dat	CryptoLocker_set1
behavioral1/memory/1668-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2152-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2152-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2152	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1668	2024-06-20_eba179d2b365ffc8cdb4f354d2e9b53f_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 1668 wrote to memory of 2152	1668	2024-06-20_eba179d2b365ffc8cdb4f354d2e9b53f_cryptolocker.exe	28
PID 1668 wrote to memory of 2152	1668	2024-06-20_eba179d2b365ffc8cdb4f354d2e9b53f_cryptolocker.exe	28
PID 1668 wrote to memory of 2152	1668	2024-06-20_eba179d2b365ffc8cdb4f354d2e9b53f_cryptolocker.exe	28
PID 1668 wrote to memory of 2152	1668	2024-06-20_eba179d2b365ffc8cdb4f354d2e9b53f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-20_eba179d2b365ffc8cdb4f354d2e9b53f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-20_eba179d2b365ffc8cdb4f354d2e9b53f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2152

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
48KB

MD5
28829daa64c07d1b8030c7ea872eabb4

SHA1
be54dace8463988022bf360ce21875f14585bc79

SHA256
366fc94cbbbdcc0d01d7e18b667d480cf53e80a940410b644840c75bf33b3b3a

SHA512
ffb1ed92162be91576bec841aedc8b10f7977d6721935a6d5249193a1f218bdbd9dac28a56a45b684bad7de7d719d6ef90b03c30e330361681518fd290bb1c9b

Download Submit
memory/1668-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1668-1-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/1668-2-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/1668-9-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/1668-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2152-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2152-25-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2152-18-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2152-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download