f47746d1db9cdfa47c27a776df13b873c2ab7a4d5527ed0242ef4a375f139a3a

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
20/02/2024, 06:11

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General

Target

2024-02-20_d5b33dd1d7b5ea09a3953ae8105a8cb9_cryptolocker.exe
Size

99KB
MD5

d5b33dd1d7b5ea09a3953ae8105a8cb9
SHA1

bc47b72b3cefe149937dd28d53e824d0d7f5b76e
SHA256

f47746d1db9cdfa47c27a776df13b873c2ab7a4d5527ed0242ef4a375f139a3a
SHA512

357e58e7136e87839b680f82965d8d43c0317860ecfafcdaef93b76d6377234bb983cb0416fff8b7b5acab0a4dd1d151eab24d140b3d008781cd0ea97d6a98ee
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgpQbCJjR:V6a+pOtEvwDpjtzu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012268-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012268-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2112	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1320	2024-02-20_d5b33dd1d7b5ea09a3953ae8105a8cb9_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 1320 wrote to memory of 2112	1320	2024-02-20_d5b33dd1d7b5ea09a3953ae8105a8cb9_cryptolocker.exe	28
PID 1320 wrote to memory of 2112	1320	2024-02-20_d5b33dd1d7b5ea09a3953ae8105a8cb9_cryptolocker.exe	28
PID 1320 wrote to memory of 2112	1320	2024-02-20_d5b33dd1d7b5ea09a3953ae8105a8cb9_cryptolocker.exe	28
PID 1320 wrote to memory of 2112	1320	2024-02-20_d5b33dd1d7b5ea09a3953ae8105a8cb9_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-20_d5b33dd1d7b5ea09a3953ae8105a8cb9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_d5b33dd1d7b5ea09a3953ae8105a8cb9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1320
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2112

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
99KB

MD5
8e747fe799308c17a5f650dff3562a63

SHA1
ff77ae1047f9216d5608a074c40826bb399d3e7f

SHA256
379a0d5df2ac499347a880b3a502f2b9e9cdaa5e9316cfddffb302235d701de9

SHA512
b40b6dfc7daf617f698b5288ecf541daa501a7893ca9dc71480e12884b78a91fe961979fa4e3330778c9f4bc70b54c960fd2789f2a0dfd5ec2a4aaa57da88468

Download Submit
memory/1320-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1320-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1320-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2112-15-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2112-22-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download