4ed99349ca7da5e15e3c9a4717c5e33efa2af9adfef328ee088e29a3f1c4e973

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-10-2024 08:16

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General

Target

2024-10-31_f70917c942f7f839a277aee15e22b9e3_cryptolocker.exe
Size

44KB
MD5

f70917c942f7f839a277aee15e22b9e3
SHA1

4dec50976fdb33a13c0737df35bc081f7fb87934
SHA256

4ed99349ca7da5e15e3c9a4717c5e33efa2af9adfef328ee088e29a3f1c4e973
SHA512

b86465cdc9db88449d04da2816d67c0a2b211d55a3a2ab82b95d1dbdfcbab61c19bcb5f92a6828406f1e619504ef733b837a5ef45aeb574324b41462447c0a0a
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6D8jnPxyVHsn:bIDOw9a0Dwo3P1ojvUSD4Pl

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
236	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2516	2024-10-31_f70917c942f7f839a277aee15e22b9e3_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-31_f70917c942f7f839a277aee15e22b9e3_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lossy.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 236	2516	2024-10-31_f70917c942f7f839a277aee15e22b9e3_cryptolocker.exe	31
PID 2516 wrote to memory of 236	2516	2024-10-31_f70917c942f7f839a277aee15e22b9e3_cryptolocker.exe	31
PID 2516 wrote to memory of 236	2516	2024-10-31_f70917c942f7f839a277aee15e22b9e3_cryptolocker.exe	31
PID 2516 wrote to memory of 236	2516	2024-10-31_f70917c942f7f839a277aee15e22b9e3_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-10-31_f70917c942f7f839a277aee15e22b9e3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-31_f70917c942f7f839a277aee15e22b9e3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:236

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\lossy.exe

Filesize
44KB

MD5
916a225e49ec670818b0cd958a61c529

SHA1
6033abd20b58896d9145d20ae48b00f865d3fb27

SHA256
e78966a67dd7c9dce4377a0f2e4b89b058772b497d04efb082bfb16df126d768

SHA512
6ac112e15f1462872faee5428bb5ce2974304c945f50da585b95d055d33bbc3f120573cdfcd0fa7bcb6c7020751aabf3f5abaaf830566be2ee74a5e30cc01fed

Download Submit
memory/236-22-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/236-15-0x0000000001C90000-0x0000000001C96000-memory.dmp

Filesize
24KB

Download
memory/2516-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2516-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2516-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download