82e4b476ac81890aa30532df6fba854823e3edf1d584b02a7a9802488ba30dff

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27-04-2024 05:22

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General

Target

2024-04-27_fc6d262ebb2fd3b3ada17f8919eda067_cryptolocker.exe
Size

40KB
MD5

fc6d262ebb2fd3b3ada17f8919eda067
SHA1

ab8c497dd180f01e9f3a6fd16d7e5e019d4f9252
SHA256

82e4b476ac81890aa30532df6fba854823e3edf1d584b02a7a9802488ba30dff
SHA512

45150739092357b60a6aa41cfecffa0546cd812883f5a6c32cb00220d29f6fd9cdf779a7493fae1454519703a02fc2181f7e015bbeb58178c577e997c64a8e70
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcfrqjM:X6QFElP6n+gJQMOtEvwDpjBsYK6rx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001231a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001231a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2748	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2412	2024-04-27_fc6d262ebb2fd3b3ada17f8919eda067_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 2412 wrote to memory of 2748	2412	2024-04-27_fc6d262ebb2fd3b3ada17f8919eda067_cryptolocker.exe	28
PID 2412 wrote to memory of 2748	2412	2024-04-27_fc6d262ebb2fd3b3ada17f8919eda067_cryptolocker.exe	28
PID 2412 wrote to memory of 2748	2412	2024-04-27_fc6d262ebb2fd3b3ada17f8919eda067_cryptolocker.exe	28
PID 2412 wrote to memory of 2748	2412	2024-04-27_fc6d262ebb2fd3b3ada17f8919eda067_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-27_fc6d262ebb2fd3b3ada17f8919eda067_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-27_fc6d262ebb2fd3b3ada17f8919eda067_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2748

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
41KB

MD5
5c63e8b21b67354ce95de027217e94d6

SHA1
4a71a12c2fea6bc4fff87320bd564a49ca8c0b19

SHA256
6d17a19a0bd1e6b5213569a867ec726ad0afced99b1191a9773258a6c8df1e10

SHA512
a61ddd9cbb1fd1b294370e8e94cd5895fba96088e3a50dca2bea42b1a6a343efb27211b94bb7d8fcf47a34b982a054d8871f5c782f3cd28386b50539f7f6ebc7

Download Submit
memory/2412-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2412-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2412-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2748-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download