xtremerat | 4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-02-2025 17:06

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General

Target

4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe
Size

437KB
MD5

18f04c2f005278d06c0fc31d58f1f932
SHA1

a77eeddaccd2cd65f4bd0296c7144f7c51b5465c
SHA256

4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570
SHA512

78cad9d92a506c0aad2f141b15c6c41fb03327ffc4649eed5fb51758a15a7afda5ee2b5a8f4a1b726a9bd4baae2b98267f244e8f41c2cd737ab6965dd136b495
SSDEEP

6144:7+gfX21hzSxL4MTdxAre2yHVmJc8usCuaTT5fixVqFFbnVDnqr8se0dn8J07S:6m21hzSKUDhHU5xaTpix+VDnqw30V8p

Score

10^/10

xtremerat bootkit discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

aimenutchiwa.no-ip.org

ƺB2ະ㼺貭 aimenutchiwa2.no-ip.org

aimenutchiwa3.no-ip.org

Signatures

Detect XtremeRAT payload 8 IoCs

resource	yara_rule
behavioral1/memory/2860-35-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2860-38-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2680-41-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2860-45-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2588-44-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2588-48-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2680-50-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2588-51-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat

XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
persistence spyware rat xtremerat
Xtremerat family
xtremerat

Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{TWW12QCI-A210-A2GL-4150-L66HX145S800}	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{TWW12QCI-A210-A2GL-4150-L66HX145S800}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	explorer.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{TWW12QCI-A210-A2GL-4150-L66HX145S800}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{TWW12QCI-A210-A2GL-4150-L66HX145S800}\StubPath = "C:\\Windows\\InstallDir\\Server.exe"	svchost.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	svchost.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2420 set thread context of 2860	2420	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	30

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2860-35-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2860-38-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2860-34-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2860-31-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2680-41-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2860-45-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2588-44-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2588-48-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2680-50-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2588-51-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\Server.exe	explorer.exe
File created	C:\Windows\InstallDir\Server.exe	explorer.exe
File opened for modification	C:\Windows\InstallDir\	explorer.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 4 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe

Modifies registry class 3 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2420	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe
2588	explorer.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2860	2420	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	30
PID 2420 wrote to memory of 2860	2420	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	30
PID 2420 wrote to memory of 2860	2420	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	30
PID 2420 wrote to memory of 2860	2420	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	30
PID 2420 wrote to memory of 2860	2420	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	30
PID 2420 wrote to memory of 2860	2420	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	30
PID 2420 wrote to memory of 2860	2420	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	30
PID 2420 wrote to memory of 2860	2420	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	30
PID 2420 wrote to memory of 2860	2420	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	30
PID 2860 wrote to memory of 2680	2860	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	31
PID 2860 wrote to memory of 2680	2860	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	31
PID 2860 wrote to memory of 2680	2860	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	31
PID 2860 wrote to memory of 2680	2860	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	31
PID 2860 wrote to memory of 2680	2860	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	31
PID 2860 wrote to memory of 2588	2860	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	32
PID 2860 wrote to memory of 2588	2860	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	32
PID 2860 wrote to memory of 2588	2860	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	32
PID 2860 wrote to memory of 2588	2860	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	32
PID 2860 wrote to memory of 2588	2860	4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe	32

C:\Users\Admin\AppData\Local\Temp\4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe
"C:\Users\Admin\AppData\Local\Temp\4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Users\Admin\AppData\Local\Temp\4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe
  "C:\Users\Admin\AppData\Local\Temp\4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2860
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:2680
- - C:\Windows\SysWOW64\explorer.exe
    explorer.exe
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - Adds Run key to start application
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

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:\Windows\InstallDir\Server.exe

Filesize
437KB

MD5
18f04c2f005278d06c0fc31d58f1f932

SHA1
a77eeddaccd2cd65f4bd0296c7144f7c51b5465c

SHA256
4bf9add46dda1210bcee973d9bf0b8df605c53a9dda0a51bab6967f007f74570

SHA512
78cad9d92a506c0aad2f141b15c6c41fb03327ffc4649eed5fb51758a15a7afda5ee2b5a8f4a1b726a9bd4baae2b98267f244e8f41c2cd737ab6965dd136b495

Download Submit
memory/2420-25-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-16-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-17-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-0-0x0000000000400000-0x00000000007FF000-memory.dmp

Filesize
4.0MB

Download
memory/2420-15-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-14-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-12-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-11-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-10-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-9-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-8-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-7-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-6-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-5-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-4-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-24-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2420-2-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-22-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2420-28-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2420-27-0x00000000002C0000-0x00000000002C3000-memory.dmp

Filesize
12KB

Download
memory/2420-26-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-13-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-3-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-23-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2420-21-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2420-20-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2420-19-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2420-18-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2420-1-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2420-36-0x0000000000400000-0x00000000007FF000-memory.dmp

Filesize
4.0MB

Download
memory/2420-32-0x0000000000400000-0x00000000007FF000-memory.dmp

Filesize
4.0MB

Download
memory/2588-44-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2588-48-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2588-51-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2680-41-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2680-39-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2680-50-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2860-37-0x0000000000400000-0x00000000007FF000-memory.dmp

Filesize
4.0MB

Download
memory/2860-38-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2860-34-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2860-31-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2860-45-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2860-35-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads