2bfa18eb1219849a96f43843d277010a2aaab50498a61751ad900975be5aeb5d

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/03/2024, 19:48

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General

Target

2024-03-10_6504598480a531df3f21b25068513287_cryptolocker.exe
Size

386KB
MD5

6504598480a531df3f21b25068513287
SHA1

ef1771140b3ddd264fad921427dd414c37c78c3c
SHA256

2bfa18eb1219849a96f43843d277010a2aaab50498a61751ad900975be5aeb5d
SHA512

d68fa47694e3cf64e11e368f0110ac4c733683d6579949d9b663620b0092a2c72041cae80bd074e1bfbc3bed6ef91cea4dd8f2e0be623233f48135bb788f4891
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXt:nnOflT/ZFIjBz3xjTxynGUOUhXt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224d-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2552	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1796	2024-03-10_6504598480a531df3f21b25068513287_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 1796 wrote to memory of 2552	1796	2024-03-10_6504598480a531df3f21b25068513287_cryptolocker.exe	28
PID 1796 wrote to memory of 2552	1796	2024-03-10_6504598480a531df3f21b25068513287_cryptolocker.exe	28
PID 1796 wrote to memory of 2552	1796	2024-03-10_6504598480a531df3f21b25068513287_cryptolocker.exe	28
PID 1796 wrote to memory of 2552	1796	2024-03-10_6504598480a531df3f21b25068513287_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-10_6504598480a531df3f21b25068513287_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_6504598480a531df3f21b25068513287_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1796
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2552

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

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
387KB

MD5
d67cbfb549ced33955c3680df612cd7d

SHA1
dc01270c9261f3f08c8e39bda0885fc0b371fbed

SHA256
98271114fa3c74721f7cfaadbaa563216fdb79026b9fe049645aec30e11dd35c

SHA512
f4f516d8ab4392eab85cbeb676efeea9dfdde628c8f76639c8317c445e7d220ecdf71003b5daf17101adf3b5878cdca1a920ad25a85ccb1f92fbe5ab344796aa

Download Submit
memory/1796-0-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/1796-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/1796-8-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2552-15-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/2552-20-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download