c2c658747e33f69ebf452b856415b686fa53d876e61ca9135d8bb0f21ca421d5

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/04/2024, 22:22

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General

Target

2024-04-10_0c56f57977ac9da7ff6f4ddf03e357d3_cryptolocker.exe
Size

46KB
MD5

0c56f57977ac9da7ff6f4ddf03e357d3
SHA1

2d88258b87b32badcbf6552f350b00c24d50a688
SHA256

c2c658747e33f69ebf452b856415b686fa53d876e61ca9135d8bb0f21ca421d5
SHA512

a875d4fcd355b2f809c8ebd0fa21b5a757162cac128749d3657c9e899af4249e5157d44a4489229a68ec336edbebbfc3f3e4547b8668711291dc7974ae225759
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/DpkcR:P6Q0ElP6G+gJQMOtEvwDpjB8WMlfR

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-24.dat	CryptoLocker_rule2
behavioral1/memory/2900-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2508-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2508-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2900-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-24.dat	CryptoLocker_set1
behavioral1/memory/2900-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2508-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2508-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2900-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2900	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2508	2024-04-10_0c56f57977ac9da7ff6f4ddf03e357d3_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 2508 wrote to memory of 2900	2508	2024-04-10_0c56f57977ac9da7ff6f4ddf03e357d3_cryptolocker.exe	28
PID 2508 wrote to memory of 2900	2508	2024-04-10_0c56f57977ac9da7ff6f4ddf03e357d3_cryptolocker.exe	28
PID 2508 wrote to memory of 2900	2508	2024-04-10_0c56f57977ac9da7ff6f4ddf03e357d3_cryptolocker.exe	28
PID 2508 wrote to memory of 2900	2508	2024-04-10_0c56f57977ac9da7ff6f4ddf03e357d3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-10_0c56f57977ac9da7ff6f4ddf03e357d3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-10_0c56f57977ac9da7ff6f4ddf03e357d3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2900

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\asih.exe

Filesize
46KB

MD5
be0a1847eac413dfffb68461edbf05bf

SHA1
5381ffbaab955b602daa245cbad1bad991b78796

SHA256
fc8788c5234b3980c6f3dd82b6a7ffb431044f1ae1d54c11384841efe7d357e6

SHA512
05fa076ee33be389a0d8acf6abd2f1bde8cec92ebd0f95e76e1785531d67ec29a3b14f480f735b4b121add98010586c932bfcd52b1b624e5147c7e3f86a193d8

Download Submit
memory/2508-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2508-5-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2508-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2508-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2508-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2900-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2900-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2900-25-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download