344ed2e27618aa51d3af356c2b0153419549af1ff61e55b04e633d7e88ee0d13

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2024, 04:29

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General

Target

2024-09-19_731e90c74813b81dca2991deda78f4a2_cryptolocker.exe
Size

45KB
MD5

731e90c74813b81dca2991deda78f4a2
SHA1

5134f0451e942f801f966daa29e6658129977861
SHA256

344ed2e27618aa51d3af356c2b0153419549af1ff61e55b04e633d7e88ee0d13
SHA512

d66c179c838f33cf7d062e3e5db1eeb77a578c96a57cfcde99cad368ec4af92b0ce3ae48882701c9c1c06e35fa0020a604b18cedc267d43ed86ca9405cbb018f
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAIie0LHumD:bCDOw9aMDooc+vAlXnD

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	2024-09-19_731e90c74813b81dca2991deda78f4a2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1980	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	2024-09-19_731e90c74813b81dca2991deda78f4a2_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 2928 wrote to memory of 1980	2928	2024-09-19_731e90c74813b81dca2991deda78f4a2_cryptolocker.exe	82
PID 2928 wrote to memory of 1980	2928	2024-09-19_731e90c74813b81dca2991deda78f4a2_cryptolocker.exe	82
PID 2928 wrote to memory of 1980	2928	2024-09-19_731e90c74813b81dca2991deda78f4a2_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-19_731e90c74813b81dca2991deda78f4a2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_731e90c74813b81dca2991deda78f4a2_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2928
- 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:1980

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
46KB

MD5
cbb50f055a8aba2b99179fcac6a472fc

SHA1
34a1f831b4b895759706b08d2ba9e463d713be40

SHA256
98cdcce6bdb833b560db65bb51292afc4aea1b846a57c58ee2c64d38ac0cbaa5

SHA512
31bc1aa880308105f84cad2355ee13f94492efa54b0b15413c742b34a79acc8980a2f88e5e03b307c916b93d34efc20d828474b5c2abf36ee4573aa6308d867e

Download Submit
memory/1980-19-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/1980-25-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/1980-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2928-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2928-1-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/2928-2-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/2928-4-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/2928-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download