aa4229a429cbe3ed64ab5f378f35e8890d12633b2e974ec98ffee93c31bac564

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15-04-2024 21:34

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General

Target

2024-04-15_9ac79ab2ee187f72fed9a0cb7abeeb5b_cryptolocker.exe
Size

40KB
MD5

9ac79ab2ee187f72fed9a0cb7abeeb5b
SHA1

381362e52c261163999e0576f16ea2d05d2c6fc7
SHA256

aa4229a429cbe3ed64ab5f378f35e8890d12633b2e974ec98ffee93c31bac564
SHA512

bc0e286d9123cb90956288519da1aa653dc0139c8701ce673672b35f90619e6b6fd0cdc1e565a09c4c1033f307f54344f0743c0ec7d688647b2601e6e04b181a
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9xgy1l:bIDOw9a0Dwo3P1ojvUSD79yy1l

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012267-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2580	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2160	2024-04-15_9ac79ab2ee187f72fed9a0cb7abeeb5b_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 2160 wrote to memory of 2580	2160	2024-04-15_9ac79ab2ee187f72fed9a0cb7abeeb5b_cryptolocker.exe	28
PID 2160 wrote to memory of 2580	2160	2024-04-15_9ac79ab2ee187f72fed9a0cb7abeeb5b_cryptolocker.exe	28
PID 2160 wrote to memory of 2580	2160	2024-04-15_9ac79ab2ee187f72fed9a0cb7abeeb5b_cryptolocker.exe	28
PID 2160 wrote to memory of 2580	2160	2024-04-15_9ac79ab2ee187f72fed9a0cb7abeeb5b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-15_9ac79ab2ee187f72fed9a0cb7abeeb5b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_9ac79ab2ee187f72fed9a0cb7abeeb5b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2160
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2580

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\lossy.exe

Filesize
40KB

MD5
f61bd749f1bac099f0cb21893c5aeb02

SHA1
18edac23a5fca75f80035ffa63db33772f213ae0

SHA256
37404d7780c688ee7936b187fee5e44416e43658a3a0b4f881a285b5888c2538

SHA512
ae9dab0b5c173dae70f47c589d356c24010df53808f39f40362388509aa2780151c7ba5c365425f663203e31ec315b1de6afefa5772e55f484f50077a3b79c7f

Download Submit
memory/2160-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2160-1-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2160-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2580-15-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2580-18-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download