597faed8a70a5ada7897f456afeb6ee321ceb7bfc010c1331a0bea0ac9bc2a30

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
30-05-2024 04:01

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General

Target

2024-05-30_8591c784b2b6b1b5578d1be90af83fb4_cryptolocker.exe
Size

47KB
MD5

8591c784b2b6b1b5578d1be90af83fb4
SHA1

7f37ba9b9214b0246101796e90334725f9309e4f
SHA256

597faed8a70a5ada7897f456afeb6ee321ceb7bfc010c1331a0bea0ac9bc2a30
SHA512

cbd41a5e739c6d5c23ad2cf2071df405e96a6eb4de93a1a442843561cd23fe38fbdea8a7789d773766ee5c33bd7606d59ccc118941a8500be5cce1db7a1430df
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPcN:P6QFElP6k+MRQMOtEvwDpjBQpVXt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/3012-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b0000000153c7-11.dat	CryptoLocker_rule2
behavioral1/memory/3012-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3012-13-0x0000000002840000-0x000000000284B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1904-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/3012-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b0000000153c7-11.dat	CryptoLocker_set1
behavioral1/memory/3012-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3012-13-0x0000000002840000-0x000000000284B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1904-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1904	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3012	2024-05-30_8591c784b2b6b1b5578d1be90af83fb4_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 3012 wrote to memory of 1904	3012	2024-05-30_8591c784b2b6b1b5578d1be90af83fb4_cryptolocker.exe	28
PID 3012 wrote to memory of 1904	3012	2024-05-30_8591c784b2b6b1b5578d1be90af83fb4_cryptolocker.exe	28
PID 3012 wrote to memory of 1904	3012	2024-05-30_8591c784b2b6b1b5578d1be90af83fb4_cryptolocker.exe	28
PID 3012 wrote to memory of 1904	3012	2024-05-30_8591c784b2b6b1b5578d1be90af83fb4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-30_8591c784b2b6b1b5578d1be90af83fb4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_8591c784b2b6b1b5578d1be90af83fb4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1904

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
47KB

MD5
a725dcb6ff5635aa0130545e7911a364

SHA1
4a688c9dfb77e7710da9cc394d2e01e324e58c6e

SHA256
b2a947a7a8361804daa2d6ea155fd974601de3f406ee9a0830f6f426ab1e0cb0

SHA512
0e8a6c089abef462a9f227b93add61870c6e478b620ee5e9ca37bb455fbe57c51b83197345be3d66e510c81bcfee07943ff71b343a74fd76a683086d82f1482b

Download Submit
memory/1904-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1904-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1904-18-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/3012-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3012-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3012-2-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/3012-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3012-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3012-13-0x0000000002840000-0x000000000284B000-memory.dmp

Filesize
44KB

Download