4245b5f00175fec23b63f37c08ec78a5c6433e37ff9fa9a7fd6cb1c8f758f72d

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
14/02/2024, 13:45

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General

Target

2024-02-14_7da4062943d3ae57c224177db1197eae_cryptolocker.exe
Size

37KB
MD5

7da4062943d3ae57c224177db1197eae
SHA1

1ad2367d9bc7b97ef88b7099389c6a2605a07817
SHA256

4245b5f00175fec23b63f37c08ec78a5c6433e37ff9fa9a7fd6cb1c8f758f72d
SHA512

2c5aa30209f8055821734b3a0147e8696b87dd7d1ab3e2ccafeeae4be8b0ef9fd13c41ed869d645fb2a6465621fe0ec0da6970690654d86374ec8be9bdfe1409
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZnfS:bgX4zYcgTEu6QOaryfjqDDw3sCu5mS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000120f8-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2324	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2480	2024-02-14_7da4062943d3ae57c224177db1197eae_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 2480 wrote to memory of 2324	2480	2024-02-14_7da4062943d3ae57c224177db1197eae_cryptolocker.exe	28
PID 2480 wrote to memory of 2324	2480	2024-02-14_7da4062943d3ae57c224177db1197eae_cryptolocker.exe	28
PID 2480 wrote to memory of 2324	2480	2024-02-14_7da4062943d3ae57c224177db1197eae_cryptolocker.exe	28
PID 2480 wrote to memory of 2324	2480	2024-02-14_7da4062943d3ae57c224177db1197eae_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_7da4062943d3ae57c224177db1197eae_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_7da4062943d3ae57c224177db1197eae_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2480
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2324

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\hasfj.exe

Filesize
37KB

MD5
8cae125a9e30b8a66243f1daf3cadb47

SHA1
8c4f47c5dce67bda8e0110b19b2ab24760d94a67

SHA256
9e3ce08d883451c84a5a2725156f62aaa19720f91656d54a6a7673417ad65cba

SHA512
5f0691b1090f3822f71729686eff66cecb22f1bf4b715b050690ef4979bcff12f34c1bc9fee23c4195e4bc46c6954269789f9066b99ad35e61d141b292347c8e

Download Submit
memory/2324-15-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2324-17-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2480-0-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2480-1-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2480-2-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download