58b0985b45d713c9a03c2ef9595270129a529d7568918bd86a7f05942941b317

Analysis

max time kernel
121s
max time network
189s
platform
windows10-1703_x64
resource
win10-20240404-es
resource tags

arch:x64arch:x86image:win10-20240404-eslocale:es-esos:windows10-1703-x64systemwindows
submitted
03/10/2024, 15:21

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General

Target

AppFile.exe
Size

179KB
MD5

7307f847abfcd35990a654365798aa0d
SHA1

db4657fbc9f8a455b1d2859d79a76e55802c490e
SHA256

2459237113947163c34ed3d3abc3dcf5599e68d193ee55e2c3590a30a1b7c8fd
SHA512

c773c8a646d0fa2a0fbe7ed0227fbde4fc8049ebb81d5525f477774117242181b5c7a3de52b9091cd44c7b4f335151488e4287535524e8ef639c2fe6e084d3c0
SSDEEP

3072:HRbKsrzJCso3JOGyQdrQO7TxoX6DCcbo/XopLxXHPQ/UEYJ:xzro3J3dXGKOXopLNvQ/UEYJ

Score

10^/10

discovery evasion

Malware Config

Signatures

Modifies firewall policy service 3 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\C:\ = "1"	AppFile.exe

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
2	api64.ipify.org
5	api64.ipify.org
6	ipinfo.io
7	ipinfo.io

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\GroupPolicy	AppFile.exe
File opened for modification	C:\Windows\SysWOW64\GroupPolicy\gpt.ini	AppFile.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	AppFile.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	AppFile.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	AppFile.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1952	AppFile.exe
1952	AppFile.exe

C:\Users\Admin\AppData\Local\Temp\AppFile.exe
"C:\Users\Admin\AppData\Local\Temp\AppFile.exe"
1⤵
- Modifies firewall policy service
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1952

\??\c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc
1⤵
PID:428

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
PID:1844

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

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/1952-0-0x0000000073116000-0x00000000733D2000-memory.dmp

Filesize
2.7MB

Download
memory/1952-1-0x0000000002960000-0x0000000002961000-memory.dmp

Filesize
4KB

Download
memory/1952-3-0x0000000002A80000-0x0000000002A81000-memory.dmp

Filesize
4KB

Download
memory/1952-7-0x0000000002AF0000-0x0000000002AF1000-memory.dmp

Filesize
4KB

Download
memory/1952-6-0x0000000002AE0000-0x0000000002AE1000-memory.dmp

Filesize
4KB

Download
memory/1952-5-0x0000000002AD0000-0x0000000002AD1000-memory.dmp

Filesize
4KB

Download
memory/1952-4-0x0000000002AC0000-0x0000000002AC1000-memory.dmp

Filesize
4KB

Download
memory/1952-2-0x0000000002A70000-0x0000000002A71000-memory.dmp

Filesize
4KB

Download
memory/1952-8-0x0000000072F80000-0x0000000073915000-memory.dmp

Filesize
9.6MB

Download
memory/1952-18-0x0000000073116000-0x00000000733D2000-memory.dmp

Filesize
2.7MB

Download
memory/1952-19-0x0000000072F80000-0x0000000073915000-memory.dmp

Filesize
9.6MB

Download