24512ca4826c41f53900f852efc8b90ab985e4285f3ba1324074996a6a5add41

Analysis

max time kernel
150s
max time network
157s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/03/2024, 04:37

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General

Target

2024-03-28_51e1bca78bb9e6e99b198ab7cd74e97b_cryptolocker.exe
Size

45KB
MD5

51e1bca78bb9e6e99b198ab7cd74e97b
SHA1

c59e3a5eb588da1935bd75b910cd797d52f1cce9
SHA256

24512ca4826c41f53900f852efc8b90ab985e4285f3ba1324074996a6a5add41
SHA512

edda67a8c32b3775039e9ae56dc8df669f05de41e93194bfd3c6cf5f3d1dd000da52b422df32578e522c42b01fb90b93dbfb2ffcabba5378bf822f99ec76f5b0
SSDEEP

768:79inqyNR/QtOOtEvwDpjBKccJVODvyLUVmK:79mqyNhQMOtEvwDpjBzckp7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/2240-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012267-11.dat	CryptoLocker_rule2
behavioral1/memory/2240-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/2240-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000012267-11.dat	CryptoLocker_set1
behavioral1/memory/2240-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2760	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2240	2024-03-28_51e1bca78bb9e6e99b198ab7cd74e97b_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 2240 wrote to memory of 2760	2240	2024-03-28_51e1bca78bb9e6e99b198ab7cd74e97b_cryptolocker.exe	28
PID 2240 wrote to memory of 2760	2240	2024-03-28_51e1bca78bb9e6e99b198ab7cd74e97b_cryptolocker.exe	28
PID 2240 wrote to memory of 2760	2240	2024-03-28_51e1bca78bb9e6e99b198ab7cd74e97b_cryptolocker.exe	28
PID 2240 wrote to memory of 2760	2240	2024-03-28_51e1bca78bb9e6e99b198ab7cd74e97b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-28_51e1bca78bb9e6e99b198ab7cd74e97b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_51e1bca78bb9e6e99b198ab7cd74e97b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2760

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
45KB

MD5
1e310faf5a4f2051fce5d30e2bf015dd

SHA1
0e5842c197e251384ed221f00a514b844ace46c5

SHA256
e8275a098961134652291fabcd98694e6209ef0f6511a15bcb24b511c2f723ca

SHA512
b7f1c32c1d72c125d39fccde3d346d67a1a2b2a308103016242b7e92408894d4bfae3e8c866fff47dab64ec5816f9b659bd4a218d3b15c7a87e91bafb8347ca0

Download Submit
memory/2240-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2240-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2240-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2240-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2240-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2760-17-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2760-19-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download