9ddf8f00a7e8fa0d6ed1bdcab6da6a1a38145525e33821bb87d5987a4ddfc19a

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
06/09/2024, 07:30

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General

Target

2024-09-06_ddfd6734d72544b103dcd4cf2cf7daf6_cryptolocker.exe
Size

27KB
MD5

ddfd6734d72544b103dcd4cf2cf7daf6
SHA1

61d494748ad26584807b7f39da3044faefbf55e3
SHA256

9ddf8f00a7e8fa0d6ed1bdcab6da6a1a38145525e33821bb87d5987a4ddfc19a
SHA512

105a28881d168c397d651a4dadea2d18727a5b7ab3c3e7c6c0f3390260e81f30a872a97e548260f4a5a5f3d8f1271c7af0b82a760cf2f95d23000bb5668e3e6a
SSDEEP

384:bFgFQrdSmuQ8WFqxpj5cpyIuYxVe3FSr+OLfjDp+0g/HNblX7QCOBqR:bFgm5zusFUB2preAr+Ofjg0STX73OBqR

Score

7^/10

discovery upx

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	2024-09-06_ddfd6734d72544b103dcd4cf2cf7daf6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1568	lossy.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2904-0-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral2/files/0x0009000000023472-13.dat	upx
behavioral2/memory/2904-17-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral2/memory/1568-26-0x0000000008000000-0x000000000800E000-memory.dmp	upx

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	2024-09-06_ddfd6734d72544b103dcd4cf2cf7daf6_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 2904 wrote to memory of 1568	2904	2024-09-06_ddfd6734d72544b103dcd4cf2cf7daf6_cryptolocker.exe	84
PID 2904 wrote to memory of 1568	2904	2024-09-06_ddfd6734d72544b103dcd4cf2cf7daf6_cryptolocker.exe	84
PID 2904 wrote to memory of 1568	2904	2024-09-06_ddfd6734d72544b103dcd4cf2cf7daf6_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-06_ddfd6734d72544b103dcd4cf2cf7daf6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-06_ddfd6734d72544b103dcd4cf2cf7daf6_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904
- 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:1568

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
27KB

MD5
7ae2816aae57589db83dcc04733e4a63

SHA1
d02ca0d5b7917769ed8069c6b818406513fe69ed

SHA256
428eb954302e2486f3d6b8bfc81573a84d2ae8ea26c08cb556ed4a9cbc45f54e

SHA512
a85cfbfad57509c36838c11edf0417c8465382261f99a66df5130cde5bac9a204905e159ffa522057e4e338bfdf2406382b0c8ca8fcb49001b5517a460549fe4

Download Submit
memory/1568-19-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/1568-25-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1568-26-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/2904-0-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/2904-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2904-2-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2904-3-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/2904-17-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download