ec937a8ff2d99701a30f46f1631298ef50d6932e20a956fcc9c356c4e9bacf27

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
12-09-2024 17:21

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General

Target

2024-09-12_4f84de85d333c950b15cb5fece586187_cryptolocker.exe
Size

50KB
MD5

4f84de85d333c950b15cb5fece586187
SHA1

581e6c0431d346966704668e63f921bbf5e3cd6e
SHA256

ec937a8ff2d99701a30f46f1631298ef50d6932e20a956fcc9c356c4e9bacf27
SHA512

2e0b08ae9f869e87fa88d6ef7ccff6aa64b879a7eafb671a2d4f149aa16277f39d5656a4fbfa5da56a3579cf58e8b2b78a05827381a8019b5236a1462fe73d79
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBC1SleKAP2o7kCc:bIDOw9a0DwitDZ0leBZ7o

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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	2024-09-12_4f84de85d333c950b15cb5fece586187_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5080	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	2024-09-12_4f84de85d333c950b15cb5fece586187_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lossy.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 5080	1956	2024-09-12_4f84de85d333c950b15cb5fece586187_cryptolocker.exe	85
PID 1956 wrote to memory of 5080	1956	2024-09-12_4f84de85d333c950b15cb5fece586187_cryptolocker.exe	85
PID 1956 wrote to memory of 5080	1956	2024-09-12_4f84de85d333c950b15cb5fece586187_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-12_4f84de85d333c950b15cb5fece586187_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-12_4f84de85d333c950b15cb5fece586187_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1956
- 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:5080

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
50KB

MD5
b6562259eb5aa0d3e5ed5f54acc7ea2f

SHA1
c4965ea030d5fdeae2588a82eecc8052ad326c04

SHA256
eef1a03e432350c1158e787af63f8059ddefbaaee47d125b66393a34ddafb1c8

SHA512
7012212ce716381060130aea64833c6e437a28be3190d95661b13921184def9ded63b66c65c656ab5132c4220785ace1c61d88fb52347e043e0d97141afa06b5

Download Submit
memory/1956-0-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/1956-1-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/1956-2-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/5080-17-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/5080-18-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download