183a4addae91f3ea0dc99c6d2b1513b5b2d67cef2b969ac9208b18f12a0cdaa8

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
26/04/2024, 05:24

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General

Target

2024-04-26_055585e7c14656a4f850d125e1fdbc9c_cryptolocker.exe
Size

46KB
MD5

055585e7c14656a4f850d125e1fdbc9c
SHA1

df2dbdba65b6f57a4006580e954645a7c98d1593
SHA256

183a4addae91f3ea0dc99c6d2b1513b5b2d67cef2b969ac9208b18f12a0cdaa8
SHA512

b8a104b23863c8655e6827feac39b72d2236d5887045f1633fc7680317686b5d5e62022aa0c307271e9c41c10ae2b403fabac8c5f5b9f8e0af745fe9aab8c90e
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/Dpkq:P6Q0ElP6G+gJQMOtEvwDpjB8WMlt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1600-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012252-11.dat	CryptoLocker_rule2
behavioral1/memory/1600-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2516-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1600-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000012252-11.dat	CryptoLocker_set1
behavioral1/memory/1600-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2516-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2516	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1600	2024-04-26_055585e7c14656a4f850d125e1fdbc9c_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 1600 wrote to memory of 2516	1600	2024-04-26_055585e7c14656a4f850d125e1fdbc9c_cryptolocker.exe	28
PID 1600 wrote to memory of 2516	1600	2024-04-26_055585e7c14656a4f850d125e1fdbc9c_cryptolocker.exe	28
PID 1600 wrote to memory of 2516	1600	2024-04-26_055585e7c14656a4f850d125e1fdbc9c_cryptolocker.exe	28
PID 1600 wrote to memory of 2516	1600	2024-04-26_055585e7c14656a4f850d125e1fdbc9c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-26_055585e7c14656a4f850d125e1fdbc9c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_055585e7c14656a4f850d125e1fdbc9c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2516

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
46KB

MD5
83d35c637c44dde2b69f62c7edd927f7

SHA1
01c016e806687af6c3a543dded0764ff0abbc776

SHA256
d85477b50a90b3f15829de709d65e17c04f83a1ae7f97df1edcbd0c8f666fe77

SHA512
7768d273402fd5c37791b03b00fa05155d3a77cea1356eceb90a31dbf3795d68ea16508510689aae26bdea05f49fea6e7073f3a1052f08ba8602aef3371c4220

Download Submit
memory/1600-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1600-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1600-3-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1600-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1600-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2516-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2516-17-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download