6c11fdb411f2a9b781e3e32a11d6879561433f519753d3c9ee8b1385339f7997

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12-02-2024 13:37

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General

Target

2024-02-12_5e48584063fbef67a4cee3bdf1bca4f2_cryptolocker.exe
Size

37KB
MD5

5e48584063fbef67a4cee3bdf1bca4f2
SHA1

bbf20439b5ec877a4a9b209a695f8a92e1f4022f
SHA256

6c11fdb411f2a9b781e3e32a11d6879561433f519753d3c9ee8b1385339f7997
SHA512

7f72aad9cec1ee804b8ae69e970e99905d8a23ddea1ac729581805a54ae109ce469a0bdf97c906a88137dac92f0b1dd8c9b8bc555e1b3d3d9750eeca32c40a66
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkLNRk2:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkLH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2296-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012252-11.dat	CryptoLocker_rule2
behavioral1/memory/2296-13-0x0000000002700000-0x000000000270B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2296-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2692-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2296-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000012252-11.dat	CryptoLocker_set1
behavioral1/memory/2296-13-0x0000000002700000-0x000000000270B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2296-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2692-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2692	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2296	2024-02-12_5e48584063fbef67a4cee3bdf1bca4f2_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 2296 wrote to memory of 2692	2296	2024-02-12_5e48584063fbef67a4cee3bdf1bca4f2_cryptolocker.exe	28
PID 2296 wrote to memory of 2692	2296	2024-02-12_5e48584063fbef67a4cee3bdf1bca4f2_cryptolocker.exe	28
PID 2296 wrote to memory of 2692	2296	2024-02-12_5e48584063fbef67a4cee3bdf1bca4f2_cryptolocker.exe	28
PID 2296 wrote to memory of 2692	2296	2024-02-12_5e48584063fbef67a4cee3bdf1bca4f2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-12_5e48584063fbef67a4cee3bdf1bca4f2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_5e48584063fbef67a4cee3bdf1bca4f2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2692

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
38KB

MD5
1e0f2979138aa4b61a360912484acf16

SHA1
302fbaf135530cf1636d19889ade86423b621b43

SHA256
b9b7cc2a89418e53021972d6c889b1ae436944ff52d95194291df254e3a88c82

SHA512
cf501966b6d99addf90b3c1cfba95474efdababfb85515563d92aa969befcbbcc00b8306bf52d10dceae58d2103b3a54a92d2175e27880c647c06d3533aa48fd

Download Submit
memory/2296-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2296-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2296-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2296-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2296-13-0x0000000002700000-0x000000000270B000-memory.dmp

Filesize
44KB

Download
memory/2296-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2692-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2692-19-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2692-26-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download