7bfb3b9e31909b67944ca94005fe468099ea3eb8244621b3ae43cb8caaff1a6a

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18-02-2024 15:01

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General

Target

2024-02-18_122db273b49b4c08bccdf1d7da13840e_cryptolocker.exe
Size

39KB
MD5

122db273b49b4c08bccdf1d7da13840e
SHA1

4c68afd459510417b0ed284b906a0fe482345fdf
SHA256

7bfb3b9e31909b67944ca94005fe468099ea3eb8244621b3ae43cb8caaff1a6a
SHA512

9afab14573a626362d4d3ceff42ca69a1280856ffff93cc28d9413ba1956093665aaeffdd0f571d815cc25a601ace3179b637b193c0560db9cdad5662bbb6a73
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcfW:X6QFElP6n+gJQMOtEvwDpjBsYK6W

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00070000000122c9-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00070000000122c9-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2652	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2500	2024-02-18_122db273b49b4c08bccdf1d7da13840e_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 2500 wrote to memory of 2652	2500	2024-02-18_122db273b49b4c08bccdf1d7da13840e_cryptolocker.exe	28
PID 2500 wrote to memory of 2652	2500	2024-02-18_122db273b49b4c08bccdf1d7da13840e_cryptolocker.exe	28
PID 2500 wrote to memory of 2652	2500	2024-02-18_122db273b49b4c08bccdf1d7da13840e_cryptolocker.exe	28
PID 2500 wrote to memory of 2652	2500	2024-02-18_122db273b49b4c08bccdf1d7da13840e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_122db273b49b4c08bccdf1d7da13840e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_122db273b49b4c08bccdf1d7da13840e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2652

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\asih.exe

Filesize
39KB

MD5
a984d1373c8cabbbbde43532de2dc7e6

SHA1
b42aa87ba8919006d38b7ebab79fa13c48e5fe5f

SHA256
19425b38a54c4bac9dfb3b4a4465e24c54b9a8f508caeb8fe2221246a04d12ed

SHA512
f5e33e7d642ff49fcd9e8e6ce9d697aeb91c6c86b4487a562099a9c2f3904078111f01b870ee4e76233154183de8c3de78aa15eff78d27255c6b7db8283f1236

Download Submit
memory/2500-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2500-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2500-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2652-16-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2652-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download