9c279a961213bb1bdbc4944555da05dbe20fc89a8d557493fa86f217bdb36b2d

Resubmissions

03-11-2024 11:03

241103-m5srbs1qfs 5

03-09-2024 16:16

240903-tqvqpssbrg 10

03-09-2024 15:55

240903-tdaj1a1anq 6

Analysis

max time kernel
186s
max time network
301s
platform
windows10-1703_x64
resource
win10-20240611-es
resource tags

arch:x64arch:x86image:win10-20240611-eslocale:es-esos:windows10-1703-x64systemwindows
submitted
03-09-2024 16:16

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General

Target

FileApp.exe
Size

739.0MB
MD5

a6f1c5f8ff75ca1e78f55e1a05b44b39
SHA1

b3a15feeee3c80425027f0f19901a8475f64f014
SHA256

7357bdbe52a049e175f5005711fde9fbddde36ad6419006f0c3cf13ed1cb70e3
SHA512

a3503a34bee2e531e7d0175a5dc99d7d2a652bbb53d91a9ac6534cbffe1d907f04384ddc48c2bd16e77435d8b0b97118145f3d2e7c9512f2005c9ae900814c68
SSDEEP

98304:GMzgISSXaYGFQime2hKRculpYX8GRlwc2h00SQDFaFue:G4SGaRFb3TlpYlwcODFaI

Score

6^/10

discovery

Malware Config

Signatures

Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

8 ipinfo.io
3 api64.ipify.org
4 api64.ipify.org
7 ipinfo.io
Suspicious use of SetThreadContext 1 IoCs

Processes:

FileApp.exe

description pid process target process

PID 3612 set thread context of 2804 3612 FileApp.exe RegAsm.exe

flow	ioc
8	ipinfo.io
3	api64.ipify.org
4	api64.ipify.org
7	ipinfo.io

description	pid	process	target process
PID 3612 set thread context of 2804	3612	FileApp.exe	RegAsm.exe

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

Processes:

FileApp.exeRegAsm.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FileApp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

FileApp.exe

description	pid	process	target process
PID 3612 wrote to memory of 2804	3612	FileApp.exe	RegAsm.exe
PID 3612 wrote to memory of 2804	3612	FileApp.exe	RegAsm.exe
PID 3612 wrote to memory of 2804	3612	FileApp.exe	RegAsm.exe
PID 3612 wrote to memory of 2804	3612	FileApp.exe	RegAsm.exe
PID 3612 wrote to memory of 2804	3612	FileApp.exe	RegAsm.exe
PID 3612 wrote to memory of 2804	3612	FileApp.exe	RegAsm.exe
PID 3612 wrote to memory of 2804	3612	FileApp.exe	RegAsm.exe
PID 3612 wrote to memory of 2804	3612	FileApp.exe	RegAsm.exe
PID 3612 wrote to memory of 2804	3612	FileApp.exe	RegAsm.exe
PID 3612 wrote to memory of 2804	3612	FileApp.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\FileApp.exe
"C:\Users\Admin\AppData\Local\Temp\FileApp.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3612
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2804-5-0x0000000000400000-0x00000000005E0000-memory.dmp

Filesize
1.9MB

Download
memory/2804-8-0x0000000000400000-0x00000000005E0000-memory.dmp

Filesize
1.9MB

Download
memory/2804-10-0x0000000000400000-0x00000000005E0000-memory.dmp

Filesize
1.9MB

Download
memory/2804-7-0x0000000000400000-0x00000000005E0000-memory.dmp

Filesize
1.9MB

Download
memory/3612-0-0x000000007376E000-0x000000007376F000-memory.dmp

Filesize
4KB

Download
memory/3612-1-0x0000000000CE0000-0x00000000015FC000-memory.dmp

Filesize
9.1MB

Download
memory/3612-2-0x0000000006010000-0x00000000060AC000-memory.dmp

Filesize
624KB

Download
memory/3612-3-0x00000000063B0000-0x00000000066AE000-memory.dmp

Filesize
3.0MB

Download
memory/3612-4-0x00000000061B0000-0x00000000061D2000-memory.dmp

Filesize
136KB

Download