5f672a3191b1ffba988862a2c5e9a97bcfa797f780c5878787947528244dd9c4

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
22/04/2024, 10:59

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General

Target

2024-04-22_be602adfd437ff555964cbf8c52b82c9_cryptolocker.exe
Size

41KB
MD5

be602adfd437ff555964cbf8c52b82c9
SHA1

c62fbc5a4c892c5787c40ec903b9d0a2cc9475d7
SHA256

5f672a3191b1ffba988862a2c5e9a97bcfa797f780c5878787947528244dd9c4
SHA512

08ccb11744d18275c40f7a9e13c88fe5a99a1e960a45b55ad44e849f273150d5cdbcdf5a6425ab571a42de6627f9971b1074b41f00efae377e489b3afb645af3
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9x3e:bIDOw9a0Dwo3P1ojvUSD79Re

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001650c-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3036	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2060	2024-04-22_be602adfd437ff555964cbf8c52b82c9_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 2060 wrote to memory of 3036	2060	2024-04-22_be602adfd437ff555964cbf8c52b82c9_cryptolocker.exe	28
PID 2060 wrote to memory of 3036	2060	2024-04-22_be602adfd437ff555964cbf8c52b82c9_cryptolocker.exe	28
PID 2060 wrote to memory of 3036	2060	2024-04-22_be602adfd437ff555964cbf8c52b82c9_cryptolocker.exe	28
PID 2060 wrote to memory of 3036	2060	2024-04-22_be602adfd437ff555964cbf8c52b82c9_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-22_be602adfd437ff555964cbf8c52b82c9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-22_be602adfd437ff555964cbf8c52b82c9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:3036

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\lossy.exe

Filesize
41KB

MD5
db6274dea317b44751cd6ec8747d4e52

SHA1
e23fe6e339ad139dd88a18eb962710c638c09d3c

SHA256
b6d91e0559c3936090ca8ff2b2b355fb1cd5bea54294d0afbcfd4c16d7a9c833

SHA512
9e5a4eaf1c74b685e4c8362e9aa0cb84e903ab53962ec02904e37b9b627c52cd9564c38b4cc5f28e23edce183259336b348b1901206b3350232c1ecf67b85f03

Download Submit
memory/2060-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2060-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2060-8-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/3036-15-0x0000000001C90000-0x0000000001C96000-memory.dmp

Filesize
24KB

Download
memory/3036-17-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download