e261d12990953c728f8d9819693852ee8737427a65123014261d6c017c5ec60f

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 08:29

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General

Target

2024-05-21_361510194b9858c85f465043d22e96b5_cryptolocker.exe
Size

55KB
MD5

361510194b9858c85f465043d22e96b5
SHA1

bcd79ebb5a17f9994a64d8f936038ecce013a214
SHA256

e261d12990953c728f8d9819693852ee8737427a65123014261d6c017c5ec60f
SHA512

25fd17ca82f1d010dc08254cf55c81ee4aed6bdc22c2c8845aa529b2304ba5c908794df18226de218db9cd5cdd666ff4b313fa0afcd8931c227462d0b1affcd6
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdO5UjL:ZVxkGOtEvwDpjcm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000f000000012331-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2980	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2316	2024-05-21_361510194b9858c85f465043d22e96b5_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 2316 wrote to memory of 2980	2316	2024-05-21_361510194b9858c85f465043d22e96b5_cryptolocker.exe	28
PID 2316 wrote to memory of 2980	2316	2024-05-21_361510194b9858c85f465043d22e96b5_cryptolocker.exe	28
PID 2316 wrote to memory of 2980	2316	2024-05-21_361510194b9858c85f465043d22e96b5_cryptolocker.exe	28
PID 2316 wrote to memory of 2980	2316	2024-05-21_361510194b9858c85f465043d22e96b5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-21_361510194b9858c85f465043d22e96b5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_361510194b9858c85f465043d22e96b5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2980

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
75c2992071ecce031b7c7e1206edbb95

SHA1
855ca709e65c094e87bacbf1c12dd837bd07d1d9

SHA256
442bebb465f177490412b5f3bb5aa81a41b904b2db7651a0d340dd6cae29d697

SHA512
22002d867d420ba01a301fc00ce7471a74b11dc816011393cbd0df79ba5e2c91b126e4679019c038fe5d3a8354e2d035562a2ae7c5a6feb4e81be0367de6355e

Download Submit
memory/2316-1-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2316-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2316-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2980-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2980-23-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2980-22-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2980-24-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download