a762310970591fc8f3ec3fd2b25028691e8aad5f484c887f770f606fde517a12

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13-02-2024 18:42

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General

Target

2024-02-13_96a744ade6f0d21f59e1d0ed786b238d_cryptolocker.exe
Size

37KB
MD5

96a744ade6f0d21f59e1d0ed786b238d
SHA1

deafc8b0a3684b7b7740744765cb52686e3331bd
SHA256

a762310970591fc8f3ec3fd2b25028691e8aad5f484c887f770f606fde517a12
SHA512

c537a1ad230afa13e80c218d7537636333001ba1f1ce5ce081eb5ea68fe1db176d39119aa7ee2680feaa4108afe4a5a20b06f923b3e673abafc674cfaccdd23a
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZr/0Q:bgX4zYcgTEu6QOaryfjqDDw3sCu5q/b

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012233-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2976	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
3032	2024-02-13_96a744ade6f0d21f59e1d0ed786b238d_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 3032 wrote to memory of 2976	3032	2024-02-13_96a744ade6f0d21f59e1d0ed786b238d_cryptolocker.exe	28
PID 3032 wrote to memory of 2976	3032	2024-02-13_96a744ade6f0d21f59e1d0ed786b238d_cryptolocker.exe	28
PID 3032 wrote to memory of 2976	3032	2024-02-13_96a744ade6f0d21f59e1d0ed786b238d_cryptolocker.exe	28
PID 3032 wrote to memory of 2976	3032	2024-02-13_96a744ade6f0d21f59e1d0ed786b238d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-13_96a744ade6f0d21f59e1d0ed786b238d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_96a744ade6f0d21f59e1d0ed786b238d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2976

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\hasfj.exe

Filesize
37KB

MD5
2a68b48f1e3a5cf5e1b1c9c17cb3d7ef

SHA1
66f3a075da1f4990ec544d4554798d9ae08c08b2

SHA256
268f17d3ff0b075e99bcdda1edd381e2b5d854ed05eaf71edeecfa980fef0550

SHA512
d3e9c7f40fdb7a187229daf4035a649ebdd249b0977baf9b8ca1ae87d94a3dfb4f06b4d15b49474cf5d26e370c0cbbf0fb60443befd8ff19589fed1ec67eea9e

Download Submit
memory/2976-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2976-18-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/3032-0-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/3032-1-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/3032-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download