bf58c05f3cd932766ffc04f4ae5ce7fc26d09667ac0e2d77f19addd278f3efc4

Analysis

max time kernel
108s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2024, 02:57

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General

Target

bf58c05f3cd932766ffc04f4ae5ce7fc26d09667ac0e2d77f19addd278f3efc4N.exe
Size

60KB
MD5

2f530366cda1f67ed768602b22abcbc0
SHA1

8db72b4f33d8e7f8c37c4d84027dcbbbb7755af4
SHA256

bf58c05f3cd932766ffc04f4ae5ce7fc26d09667ac0e2d77f19addd278f3efc4
SHA512

ba3fd31eed9e79fd2fb495cfe86fa81224634d9087e218ecdfdc6a92873bd0858abcfe8a694bdefc6f2546f594a506f059e787fcd80328e8b3876e52b34f4d55
SSDEEP

384:asjPGY2HXgrkEYYhQ98E8I1XAV/QcaYpATUgch1A9NB/erxFpk2Zb/:aePG5H8XhKD8ISZQjkgs1lxFVb/

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	bf58c05f3cd932766ffc04f4ae5ce7fc26d09667ac0e2d77f19addd278f3efc4N.exe

Executes dropped EXE 1 IoCs

pid	Process
4476	winupdate.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	bf58c05f3cd932766ffc04f4ae5ce7fc26d09667ac0e2d77f19addd278f3efc4N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4780 wrote to memory of 4476	4780	bf58c05f3cd932766ffc04f4ae5ce7fc26d09667ac0e2d77f19addd278f3efc4N.exe	82
PID 4780 wrote to memory of 4476	4780	bf58c05f3cd932766ffc04f4ae5ce7fc26d09667ac0e2d77f19addd278f3efc4N.exe	82
PID 4780 wrote to memory of 4476	4780	bf58c05f3cd932766ffc04f4ae5ce7fc26d09667ac0e2d77f19addd278f3efc4N.exe	82

C:\Users\Admin\AppData\Local\Temp\bf58c05f3cd932766ffc04f4ae5ce7fc26d09667ac0e2d77f19addd278f3efc4N.exe
"C:\Users\Admin\AppData\Local\Temp\bf58c05f3cd932766ffc04f4ae5ce7fc26d09667ac0e2d77f19addd278f3efc4N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4780
- C:\Users\Admin\AppData\Local\Temp\winupdate.exe
  "C:\Users\Admin\AppData\Local\Temp\winupdate.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4476

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\winupdate.exe

Filesize
60KB

MD5
e2353217ef276732a37e2ff1552abbab

SHA1
cc2b5e7667f6bf2599ddff0ea757aa2022209d47

SHA256
cc51c2029bd46bebe2651fca06c1531da77e8530001f105e0594478f100d09b2

SHA512
79f5f575fa5a05f2375b8c8709ed46d8eee87858ccfacac839817e5158babfd0446628148135c87f5498a1494abdeb73edf9d692fef11770982e83270d68e2e5

Download Submit
memory/4476-11-0x0000000000500000-0x0000000000512000-memory.dmp

Filesize
72KB

Download
memory/4780-0-0x0000000000500000-0x0000000000512000-memory.dmp

Filesize
72KB

Download
memory/4780-1-0x0000000000501000-0x0000000000502000-memory.dmp

Filesize
4KB

Download
memory/4780-10-0x0000000000500000-0x0000000000512000-memory.dmp

Filesize
72KB

Download