b6741fd0892886081495371ab187b5e40c53cd535b1f793ca57a8f8038746f4b

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/05/2024, 05:59

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General

Target

2024-05-22_995219425fe418029342971ffcef8445_cryptolocker.exe
Size

41KB
MD5

995219425fe418029342971ffcef8445
SHA1

309085ba4b2db58e3764dd5cc8deff674fa021aa
SHA256

b6741fd0892886081495371ab187b5e40c53cd535b1f793ca57a8f8038746f4b
SHA512

304792f2e0f7fe6d336611b4796ec36284bb2a1e16476b65e93d87f559180ba8e6bd5a068c6f69ae353ba7bbe9425ccb12a8972cf2d9674982e2fae7dbce8bcb
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAsKuDkh:ZzFbxmLPWQMOtEvwDpjLeJAsKcW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001269e-15.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1572	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2868	2024-05-22_995219425fe418029342971ffcef8445_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 2868 wrote to memory of 1572	2868	2024-05-22_995219425fe418029342971ffcef8445_cryptolocker.exe	28
PID 2868 wrote to memory of 1572	2868	2024-05-22_995219425fe418029342971ffcef8445_cryptolocker.exe	28
PID 2868 wrote to memory of 1572	2868	2024-05-22_995219425fe418029342971ffcef8445_cryptolocker.exe	28
PID 2868 wrote to memory of 1572	2868	2024-05-22_995219425fe418029342971ffcef8445_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-22_995219425fe418029342971ffcef8445_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_995219425fe418029342971ffcef8445_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1572

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

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
41KB

MD5
971718663130d0d18e652a1f08e43911

SHA1
8123b1344a87195b0af217afc7e467b8c01ed115

SHA256
17297aa7b3cddfc2044c56b17c9b36eddc66ea7022dc3ac3a0a7629397574858

SHA512
26365f2c732ca5143ccb6636a274f6d5ce269cab084310b2e51442fc8ae5f86625902af424478410ed612f304fb4d2c63d39b7988b3f81d03455228698bb4073

Download Submit
memory/1572-17-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1572-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1572-24-0x0000000000230000-0x00000000002B0000-memory.dmp

Filesize
512KB

Download
memory/1572-26-0x0000000000230000-0x00000000002B0000-memory.dmp

Filesize
512KB

Download
memory/2868-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2868-1-0x0000000000230000-0x0000000000270000-memory.dmp

Filesize
256KB

Download
memory/2868-3-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2868-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2868-14-0x0000000000230000-0x0000000000270000-memory.dmp

Filesize
256KB

Download