3354a132ee98572c71798194de12cf37d9be8c0fc1f79ff058907c5d85557b60

Analysis

max time kernel
93s
max time network
129s
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, 03:22

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General

Target

2024-09-12_052ea9cbfbde199402e4ed7eb7abf884_cryptolocker.exe
Size

58KB
MD5

052ea9cbfbde199402e4ed7eb7abf884
SHA1

48ff4e4d0dbc9aa4903db4f2b367b5ac0665308a
SHA256

3354a132ee98572c71798194de12cf37d9be8c0fc1f79ff058907c5d85557b60
SHA512

ba6e54abe0b70204b3cdb7498d1ed2cb439539b21615861597ef0227b997f7bf365121d6462e02b0a991c581198e8240b2f58d39e989281925560d1af53b9e58
SSDEEP

768:bP9g/WItCSsAfFaeOcfXVr3BPOz5CFBmNuFgUjlgcS7:bP9g/xtCS3Dxx0X

Score

7^/10

discovery upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 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	2024-09-12_052ea9cbfbde199402e4ed7eb7abf884_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
3376	gewos.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4928-0-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/files/0x0009000000023420-13.dat	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	2024-09-12_052ea9cbfbde199402e4ed7eb7abf884_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gewos.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4928 wrote to memory of 3376	4928	2024-09-12_052ea9cbfbde199402e4ed7eb7abf884_cryptolocker.exe	85
PID 4928 wrote to memory of 3376	4928	2024-09-12_052ea9cbfbde199402e4ed7eb7abf884_cryptolocker.exe	85
PID 4928 wrote to memory of 3376	4928	2024-09-12_052ea9cbfbde199402e4ed7eb7abf884_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-12_052ea9cbfbde199402e4ed7eb7abf884_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-12_052ea9cbfbde199402e4ed7eb7abf884_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4928
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3376

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

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Downloads

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

Filesize
58KB

MD5
49437dec4deef2cfe4b5cbd25701b6b5

SHA1
3177817fb215b72bb4d409cf0cb897004a96d2de

SHA256
3835c4a85e8c17ecd8efb413cc2e77d752a36db31a129ad4383dfcb5a0e2eb5f

SHA512
8368822b5a397b9bea03d4eb7cc86e34a13734f65684d5c38b1cc1a9e6ae33b62273d4e694be1949e2ac828720be1669d626f7e8a973a06393bd8e727e272571

Download Submit
C:\Users\Admin\AppData\Local\Temp\gewosik.exe

Filesize
184B

MD5
af4070636db5fe36aea9edc6bb5a2e0c

SHA1
e8f044c749440916c6b44f192241195732b4993d

SHA256
f86a4d649940e4b111f04fe4f51cd58a173ecace3adc35a3c4feafdfe143a3fe

SHA512
985af5253b2ef1798d0c84835948d34150c7d59dfbd677e9fdd454d7fb56eccc76a5fa94abef6402862f82f26e38ec3f410105c89d5df2c01e22f62df8de51b6

Download Submit
memory/3376-26-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/4928-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4928-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4928-2-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4928-3-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download