58d3994ee7bab73f97993cee3b2e05862c36df7045f26003db465c0692b93b88

Analysis

max time kernel
149s
max time network
158s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
21-02-2024 11:38

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General

Target

2024-02-21_942e05ca457134297db8e31fc1140874_cryptolocker.exe
Size

50KB
MD5

942e05ca457134297db8e31fc1140874
SHA1

33800b7ae658ca75c4afc63827afbc6f53ac2414
SHA256

58d3994ee7bab73f97993cee3b2e05862c36df7045f26003db465c0692b93b88
SHA512

a2dc5e14b02a46410d6264e1e7c4370385d02b39622007932ba59e394f78874562c0eeaaee6a58edef561d7782ce3fdd02b244e51ab2f07f2bdf8420f0f51619
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxmlca96Xg:X6QFElP6n+gJBMOtEvwDpjBtExmlFv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012267-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012267-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2108	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2512	2024-02-21_942e05ca457134297db8e31fc1140874_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 2512 wrote to memory of 2108	2512	2024-02-21_942e05ca457134297db8e31fc1140874_cryptolocker.exe	28
PID 2512 wrote to memory of 2108	2512	2024-02-21_942e05ca457134297db8e31fc1140874_cryptolocker.exe	28
PID 2512 wrote to memory of 2108	2512	2024-02-21_942e05ca457134297db8e31fc1140874_cryptolocker.exe	28
PID 2512 wrote to memory of 2108	2512	2024-02-21_942e05ca457134297db8e31fc1140874_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_942e05ca457134297db8e31fc1140874_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_942e05ca457134297db8e31fc1140874_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2108

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
50KB

MD5
7efdbf7cda8246307c11b9fd9c319139

SHA1
7668e415512800d194061e7c331244c761080fd4

SHA256
69e4eaa4fc63993573e08b429b16e717083d7c9518b4a0606d9e19a432d5f3b2

SHA512
4233964d8651e0e9de988d01623bcbb6fca3e5a2660d0024f829707ea89c7e111c9d142df2f29a93df5bfda54ad8df8de8a2dbb3480419ef5e696ee78a880d03

Download Submit
memory/2108-15-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2108-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2512-0-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2512-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2512-3-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download