1993c53bfecc16db8e8a1609a9612573bed7a396dbe223894f68a403c6772bdc

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
17-02-2024 18:28

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General

Target

2024-02-17_2df329feacc268e1244a2c51f8cda134_cryptolocker.exe
Size

55KB
MD5

2df329feacc268e1244a2c51f8cda134
SHA1

5f49389f78e4aed588c6e58d6194146b9c3d8ad7
SHA256

1993c53bfecc16db8e8a1609a9612573bed7a396dbe223894f68a403c6772bdc
SHA512

02d200b17222dba73fa5bf64f6a6a158a904f20ae30fe1c64463d5ebeedb42e9ac0005715b08ab9ee0ed065574c32255a01f6de396fdf698a217f64a31ec8e95
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5QJz7WwfeW:6j+1NMOtEvwDpjr8oxEqW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1764-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000015626-11.dat	CryptoLocker_rule2
behavioral1/memory/1764-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3004-20-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1764-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000015626-11.dat	CryptoLocker_set1
behavioral1/memory/1764-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3004-20-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral1/memory/1764-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000a000000015626-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1764-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/3004-20-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
3004	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1764	2024-02-17_2df329feacc268e1244a2c51f8cda134_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 1764 wrote to memory of 3004	1764	2024-02-17_2df329feacc268e1244a2c51f8cda134_cryptolocker.exe	28
PID 1764 wrote to memory of 3004	1764	2024-02-17_2df329feacc268e1244a2c51f8cda134_cryptolocker.exe	28
PID 1764 wrote to memory of 3004	1764	2024-02-17_2df329feacc268e1244a2c51f8cda134_cryptolocker.exe	28
PID 1764 wrote to memory of 3004	1764	2024-02-17_2df329feacc268e1244a2c51f8cda134_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-17_2df329feacc268e1244a2c51f8cda134_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_2df329feacc268e1244a2c51f8cda134_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1764
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3004

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
55KB

MD5
9da81489b3fd465c2389a4113b91b719

SHA1
e1e3f1482540c84bbfb9d5470348603b591f0db2

SHA256
fefa9e35d4b65648ad3fd3f0ed98f0aca9e8c51dbc0f0ecbd117493ff341e22a

SHA512
b89ac8d1ebcf6c34a57233617f56d2f23b44e278a6e01dea7223e65d4d5a4fcd2dfc8eaeee213a2b2b3860469c0add25b9cc5f6f0592247068e42687d2273215

Download Submit
memory/1764-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1764-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1764-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1764-9-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1764-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3004-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3004-17-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/3004-20-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download