5339854835f35efbead47f0316f3c5b6c7622d9f8524f3965db9dab856da5710

Analysis

max time kernel
198s
max time network
298s
platform
windows10-1703_x64
resource
win10-20240404-es
resource tags

arch:x64arch:x86image:win10-20240404-eslocale:es-esos:windows10-1703-x64systemwindows
submitted
25-08-2024 17:46

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General

Target

FileApp.exe
Size

700.0MB
MD5

043fd5c91f30af1e8ccf540f0ec95012
SHA1

9b295edf164cd6ecd8015c05318d17f57157b02c
SHA256

66ec50e4462ada79582360f410b2012da970c50f9ae3754f81bdc58af3a577a5
SHA512

944caffc5dd65819460c15d5ed655e3c60592b28a9079b4cc1a3ec1238dcb5b5c22babb588d0a1cb125194735fd268732db165fa8c66844dc375b2f52f753516
SSDEEP

98304:tUr3vGNsbo5GbgCpKQaFJrcvYhs4oaNO2RuU:Or3towXM3FuvYmcO24

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.

flow	ioc
3	api.myip.com
4	api.myip.com
5	ipinfo.io
6	ipinfo.io

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4780 set thread context of 2312	4780	FileApp.exe	72

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

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4780 wrote to memory of 2312	4780	FileApp.exe	72
PID 4780 wrote to memory of 2312	4780	FileApp.exe	72
PID 4780 wrote to memory of 2312	4780	FileApp.exe	72
PID 4780 wrote to memory of 2312	4780	FileApp.exe	72
PID 4780 wrote to memory of 2312	4780	FileApp.exe	72
PID 4780 wrote to memory of 2312	4780	FileApp.exe	72
PID 4780 wrote to memory of 2312	4780	FileApp.exe	72
PID 4780 wrote to memory of 2312	4780	FileApp.exe	72
PID 4780 wrote to memory of 2312	4780	FileApp.exe	72
PID 4780 wrote to memory of 2312	4780	FileApp.exe	72

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:4780
- 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:2312

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/2312-7-0x0000000000400000-0x00000000005DF000-memory.dmp

Filesize
1.9MB

Download
memory/2312-11-0x0000000000400000-0x00000000005DF000-memory.dmp

Filesize
1.9MB

Download
memory/2312-13-0x0000000000400000-0x00000000005DF000-memory.dmp

Filesize
1.9MB

Download
memory/2312-10-0x0000000000400000-0x00000000005DF000-memory.dmp

Filesize
1.9MB

Download
memory/4780-0-0x000000007397E000-0x000000007397F000-memory.dmp

Filesize
4KB

Download
memory/4780-1-0x0000000000770000-0x0000000000E3A000-memory.dmp

Filesize
6.8MB

Download
memory/4780-2-0x0000000005840000-0x00000000058DC000-memory.dmp

Filesize
624KB

Download
memory/4780-3-0x0000000073970000-0x000000007405E000-memory.dmp

Filesize
6.9MB

Download
memory/4780-4-0x0000000005960000-0x0000000005BFE000-memory.dmp

Filesize
2.6MB

Download
memory/4780-5-0x0000000006D30000-0x0000000006FCC000-memory.dmp

Filesize
2.6MB

Download
memory/4780-6-0x00000000052B0000-0x00000000052D2000-memory.dmp

Filesize
136KB

Download
memory/4780-9-0x0000000073970000-0x000000007405E000-memory.dmp

Filesize
6.9MB

Download