b6ae71edaaeef7e8280754804e34dd75553560a6452549faca58b0653705a8b1

Analysis

max time kernel
134s
max time network
144s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16-04-2024 07:26

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General

Target

2024-04-16_16108135a5677494f690efc6570080f4_cryptolocker.exe
Size

74KB
MD5

16108135a5677494f690efc6570080f4
SHA1

d53440ae27201e3fa514d02f4d39ed73acb48f5b
SHA256

b6ae71edaaeef7e8280754804e34dd75553560a6452549faca58b0653705a8b1
SHA512

e61237edfbf310b829514571c983955e5b45226d4c5221dd659a087f0738488ee7cd48f856b7837cb24cddae08a34f6fab87377fd30f248533924fc703fd1f3c
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsO:X6a+SOtEvwDpjBZYvQd2l

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001223d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001223d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2836	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1412	2024-04-16_16108135a5677494f690efc6570080f4_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 1412 wrote to memory of 2836	1412	2024-04-16_16108135a5677494f690efc6570080f4_cryptolocker.exe	28
PID 1412 wrote to memory of 2836	1412	2024-04-16_16108135a5677494f690efc6570080f4_cryptolocker.exe	28
PID 1412 wrote to memory of 2836	1412	2024-04-16_16108135a5677494f690efc6570080f4_cryptolocker.exe	28
PID 1412 wrote to memory of 2836	1412	2024-04-16_16108135a5677494f690efc6570080f4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-16_16108135a5677494f690efc6570080f4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-16_16108135a5677494f690efc6570080f4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1412
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2836

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
74KB

MD5
8f78652cba0143f47edb1a7d599a23ba

SHA1
63878c189d2032a51a2d2276461858820c2b0688

SHA256
35bee34fd03b4967aa80f852ed80874a383c8d3f4e56a3c2585590618b749cf0

SHA512
0dfe9181ec297196c221c26545e5a935485c2bf5142a98a3dfb71488f251017c964895b140eae0990fda2dfdbc70c317ee9bc796d731f28e7a5d394f7d8ff818

Download Submit
memory/1412-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1412-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1412-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2836-15-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download