712fd202cb9fa7bb29ca3cbe98ee1666ff1a6a831689d1d15a8f67ee59de48f4

Analysis

max time kernel
151s
max time network
158s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/04/2024, 19:31

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General

Target

2024-04-10_71c123b7b14cd25ae73b95da0e5c9f84_cryptolocker.exe
Size

78KB
MD5

71c123b7b14cd25ae73b95da0e5c9f84
SHA1

d3b3fe13eae32dc8897998a61faa29f10bd4a38f
SHA256

712fd202cb9fa7bb29ca3cbe98ee1666ff1a6a831689d1d15a8f67ee59de48f4
SHA512

8b9d9f2c55d5fd3ebc0f1d32f1019a04abf0baeeaeac15a069ee98e8980fa41ef0018202394218bc4a90e668c16524b8b56821ea4d5f5c75121527542e5a2cca
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVNluoA:V6a+pOtEvwDpjvpW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012266-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012266-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3040	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2020	2024-04-10_71c123b7b14cd25ae73b95da0e5c9f84_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 2020 wrote to memory of 3040	2020	2024-04-10_71c123b7b14cd25ae73b95da0e5c9f84_cryptolocker.exe	28
PID 2020 wrote to memory of 3040	2020	2024-04-10_71c123b7b14cd25ae73b95da0e5c9f84_cryptolocker.exe	28
PID 2020 wrote to memory of 3040	2020	2024-04-10_71c123b7b14cd25ae73b95da0e5c9f84_cryptolocker.exe	28
PID 2020 wrote to memory of 3040	2020	2024-04-10_71c123b7b14cd25ae73b95da0e5c9f84_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-10_71c123b7b14cd25ae73b95da0e5c9f84_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-10_71c123b7b14cd25ae73b95da0e5c9f84_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3040

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
78KB

MD5
88335aa575c00ecfab93a74d023a618f

SHA1
72188233eb4e4ee7de3e7281f37c2c5a3f032175

SHA256
55c8d0c5c49b40813e948a146663b9314360960c043ad8a5d4418dc8f8202105

SHA512
5738d4fe9fe7a439c719f2f0e6a8c7dfb4e31c92a9574153470ed15132d2c72c8a52261c2d2009c40692e06bf6b74a7c4f15d82b67396b6cee46466b4881e1ad

Download Submit
memory/2020-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2020-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2020-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3040-16-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/3040-15-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download