aedfd418fdbc3440a3e56088dd504afa56ec812b55ac2f56b8fee66c485a9116

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
03/06/2024, 02:36

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General

Target

2024-06-03_b9608b645983cb54ecae9033ce7819c6_cryptolocker.exe
Size

46KB
MD5

b9608b645983cb54ecae9033ce7819c6
SHA1

43030da85ee47a85dff010008aa46e3c359cf1f6
SHA256

aedfd418fdbc3440a3e56088dd504afa56ec812b55ac2f56b8fee66c485a9116
SHA512

e62d5b87e01814e59898981699a20ea444e39c24ea6753e71bb6d94fbde5103839bbbd7a58fb2dd07374daa100713f8d7baf56f7d76f99ebd19988548474a27b
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAP6:P6QFElP6k+MRQMOtEvwDpjBQpVX/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2512-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001424e-14.dat	CryptoLocker_rule2
behavioral1/memory/2224-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2512-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2224-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2512-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000001424e-14.dat	CryptoLocker_set1
behavioral1/memory/2224-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2512-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2224-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2224	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2512	2024-06-03_b9608b645983cb54ecae9033ce7819c6_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 2224	2512	2024-06-03_b9608b645983cb54ecae9033ce7819c6_cryptolocker.exe	28
PID 2512 wrote to memory of 2224	2512	2024-06-03_b9608b645983cb54ecae9033ce7819c6_cryptolocker.exe	28
PID 2512 wrote to memory of 2224	2512	2024-06-03_b9608b645983cb54ecae9033ce7819c6_cryptolocker.exe	28
PID 2512 wrote to memory of 2224	2512	2024-06-03_b9608b645983cb54ecae9033ce7819c6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-03_b9608b645983cb54ecae9033ce7819c6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_b9608b645983cb54ecae9033ce7819c6_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:2224

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
d33b57c77d7923c43a0839fdc4572c44

SHA1
5d51d3c8ef80c2037a1a149b02804ac7bf9c948f

SHA256
2ef1322cec73488c071a2572480c5db1388b47e690e958e93756de8d12314f52

SHA512
65842bcd1040c3f884923b13a117c3de9a8941361b567ac7d8ba0344fea3e06b451c39868d19d18a25630cdd89979fd2143f47282663ed95f86f4c0f8c3020a4

Download Submit
memory/2224-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2224-18-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2224-25-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/2224-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2512-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2512-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2512-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2512-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2512-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download