f205d33e6d4897acc0e722badec73f1bdebb314918da2a6b1a63b900ec4de630

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
28-04-2024 19:28

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General

Target

2024-04-28_49549d202b1b52a2a38c01dd4434c35f_cryptolocker.exe
Size

61KB
MD5

49549d202b1b52a2a38c01dd4434c35f
SHA1

74e8903edaa5d751c944c12c42fe4a3d60ee43ec
SHA256

f205d33e6d4897acc0e722badec73f1bdebb314918da2a6b1a63b900ec4de630
SHA512

25093720f82bfee2c9876fd4ff009d94b81a7da9e3ecbbae11b5ab9d8c08783fba3c03647cb6a9c1567523e788f4697da6d8f43e2389c224d66bbe857887a4a7
SSDEEP

768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG9p:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWRK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1776-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000015cbd-11.dat	CryptoLocker_rule2
behavioral1/memory/3048-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3048-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1776-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000015cbd-11.dat	CryptoLocker_set1
behavioral1/memory/3048-15-0x0000000000500000-0x000000000050B000-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
1776	2024-04-28_49549d202b1b52a2a38c01dd4434c35f_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 1776 wrote to memory of 3048	1776	2024-04-28_49549d202b1b52a2a38c01dd4434c35f_cryptolocker.exe	28
PID 1776 wrote to memory of 3048	1776	2024-04-28_49549d202b1b52a2a38c01dd4434c35f_cryptolocker.exe	28
PID 1776 wrote to memory of 3048	1776	2024-04-28_49549d202b1b52a2a38c01dd4434c35f_cryptolocker.exe	28
PID 1776 wrote to memory of 3048	1776	2024-04-28_49549d202b1b52a2a38c01dd4434c35f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-28_49549d202b1b52a2a38c01dd4434c35f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_49549d202b1b52a2a38c01dd4434c35f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1776
- 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
61KB

MD5
4fdf20364d80f76b44436f64829a5a98

SHA1
57995e8bfe03920d9f19668d4d29b07e07c1fe04

SHA256
766b2431b16408efa47d929b56debee20f4d89f0ab245ed1d2a9fe8fddf0fc7a

SHA512
fdae624b251d6c4c2489dcf50d79dc6adea493efa0513965164436abc701dc6e9ed1b287f5b902bbeb0a7534804e9b2173d661c4c184957894143e01bcde0be0

Download Submit
memory/1776-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1776-1-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/1776-9-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1776-8-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3048-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3048-17-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/3048-24-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

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

Filesize
44KB

Download