ff444abe2ef4783528da9633644b2877b3dc5f394023fee698006eb168b5f6f3

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07-09-2024 08:23

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General

Target

2024-09-07_780a356aeb532188c460d4af5b1446c5_cryptolocker.exe
Size

49KB
MD5

780a356aeb532188c460d4af5b1446c5
SHA1

99b16dead669ed02e5ec94798bce615876047abc
SHA256

ff444abe2ef4783528da9633644b2877b3dc5f394023fee698006eb168b5f6f3
SHA512

80a321711387c0bbffb75205ba745db2b663b54c4c2a21588bfa2e0bd3d244419df8998d2925d0c52248f74764c2532b174634edb22912b8d7401080caae66f6
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6D8jnPx9UnuDLlD+w/:bIDOw9a0Dwo3P1ojvUSD4PInyD1

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	2024-09-07_780a356aeb532188c460d4af5b1446c5_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
940	lossy.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	lossy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-07_780a356aeb532188c460d4af5b1446c5_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3520 wrote to memory of 940	3520	2024-09-07_780a356aeb532188c460d4af5b1446c5_cryptolocker.exe	84
PID 3520 wrote to memory of 940	3520	2024-09-07_780a356aeb532188c460d4af5b1446c5_cryptolocker.exe	84
PID 3520 wrote to memory of 940	3520	2024-09-07_780a356aeb532188c460d4af5b1446c5_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-07_780a356aeb532188c460d4af5b1446c5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-07_780a356aeb532188c460d4af5b1446c5_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3520
- 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:940

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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

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

Filesize
49KB

MD5
1955804f24e60f7fdf1b157ae7ae12a6

SHA1
3c4de09d57d64ca6c5e790c5c0ea3c44a1fe53c0

SHA256
83f40a8c4bbfe08d5e0651428c3327ca216decc482a4a3797b8aeed64faf28ad

SHA512
2d7fedd22f2799d011cb9659eeb632295c0513aa3ad00ef90b1bad3aa49fe156804b471984aa0d38e03f3984d71ce082fd42014f0010b018525155679398ba6b

Download Submit
memory/940-17-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3520-0-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/3520-1-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/3520-2-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download