d7857fc0a042c61f686f4183a28176b3c5706befcdf38e13d4e99ab7cb4f5bf8

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
05-09-2024 16:49

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General

Target

2024-09-05_ef2f222d35ceccbd54b3e5d537055907_cryptolocker.exe
Size

43KB
MD5

ef2f222d35ceccbd54b3e5d537055907
SHA1

9562414cd193e9dcc86469576fd8d43a8547d933
SHA256

d7857fc0a042c61f686f4183a28176b3c5706befcdf38e13d4e99ab7cb4f5bf8
SHA512

940e409ab0226a412edbec8df0d70d1270d959d8ffeee8e9fafac7f89f7ee98b0be0646e6f23c2a280d31a8f79cb595165e8a9c5c8339b13d244853c86263cf8
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtA/:bCDOw9aMDooc+vA/

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	2024-09-05_ef2f222d35ceccbd54b3e5d537055907_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
60	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	2024-09-05_ef2f222d35ceccbd54b3e5d537055907_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3764 wrote to memory of 60	3764	2024-09-05_ef2f222d35ceccbd54b3e5d537055907_cryptolocker.exe	83
PID 3764 wrote to memory of 60	3764	2024-09-05_ef2f222d35ceccbd54b3e5d537055907_cryptolocker.exe	83
PID 3764 wrote to memory of 60	3764	2024-09-05_ef2f222d35ceccbd54b3e5d537055907_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-09-05_ef2f222d35ceccbd54b3e5d537055907_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_ef2f222d35ceccbd54b3e5d537055907_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3764
- 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:60

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
43KB

MD5
7d69a76eb471b8f0b546ceeda9df7db0

SHA1
a1f9555065035ddb1a4030b81690bdc9e1ea9599

SHA256
0b059522743cc94331627b0364e8a51deb71da678b951b5092b1c7570c514dc1

SHA512
6af76cdd0e7620c819a3fb24a2538f0815d1f9f015c4e5a5216958e2aa50ca5ddd85c0aaed3b190830f51ab4d62a1e31f5d877e1ab0ed931a81fce771fd36fd1

Download Submit
memory/60-25-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/60-19-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/60-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3764-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3764-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/3764-2-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/3764-3-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/3764-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download