xtremerat | fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
04-12-2024 09:24

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General

Target

fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe
Size

192KB
MD5

0725580895dbf96decb73d2347c1bfc7
SHA1

714a98668b4a18ee2e65711f2d835a14feaabee8
SHA256

fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6
SHA512

18824d545374946fadfa2efc1a7f4137c5a7a131fa582cd177a61932f36f19ddaed1f4addf2e9971bec9c4151c00028956f83fac4e227264ea396bd3cccba03f
SSDEEP

6144:H4FF5HbInVW5GJZ2tNYLj8MfsimYwYdlSk:H4+VzYKj86sgR1

Score

10^/10

xtremerat bootkit discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral1/memory/2808-50-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2424-14-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2808-52-0x0000000000C80000-0x0000000000C96000-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 2 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\{5460C4DF-B266-909E-CB58-E32B79832EB2}	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe

Adds Run key to start application 2 TTPs 2 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"	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.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	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2420 set thread context of 2424	2420	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	30

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2808-50-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2424-14-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2424-13-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2424-11-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2808-52-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\Server.exe	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe
File created	C:\Windows\InstallDir\Server.exe	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.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 3 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	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2420	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe
2808	explorer.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2424	2420	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	30
PID 2420 wrote to memory of 2424	2420	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	30
PID 2420 wrote to memory of 2424	2420	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	30
PID 2420 wrote to memory of 2424	2420	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	30
PID 2420 wrote to memory of 2424	2420	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	30
PID 2420 wrote to memory of 2424	2420	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	30
PID 2420 wrote to memory of 2424	2420	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	30
PID 2420 wrote to memory of 2424	2420	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	30
PID 2420 wrote to memory of 2424	2420	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	30
PID 2424 wrote to memory of 2740	2424	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	31
PID 2424 wrote to memory of 2740	2424	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	31
PID 2424 wrote to memory of 2740	2424	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	31
PID 2424 wrote to memory of 2740	2424	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	31
PID 2424 wrote to memory of 2808	2424	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	32
PID 2424 wrote to memory of 2808	2424	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	32
PID 2424 wrote to memory of 2808	2424	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	32
PID 2424 wrote to memory of 2808	2424	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	32
PID 2424 wrote to memory of 2808	2424	fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe	32

C:\Users\Admin\AppData\Local\Temp\fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe
"C:\Users\Admin\AppData\Local\Temp\fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.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\fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe
  "C:\Users\Admin\AppData\Local\Temp\fd6b9a4e42648347bcfcdeb2d5e7f4b602364d22d70dcf79f1bdbf4722af96a6.exe"
  2⤵
  - 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 WriteProcessMemory
  PID:2424
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:2740
- - C:\Windows\SysWOW64\explorer.exe
    explorer.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2808

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

Replay Monitor

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Downloads

memory/2420-30-0x0000000002750000-0x0000000002751000-memory.dmp

Filesize
4KB

Download
memory/2420-33-0x00000000027A0000-0x00000000027A1000-memory.dmp

Filesize
4KB

Download
memory/2420-9-0x0000000002650000-0x0000000002750000-memory.dmp

Filesize
1024KB

Download
memory/2420-0-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-6-0x0000000002660000-0x0000000002661000-memory.dmp

Filesize
4KB

Download
memory/2420-5-0x0000000002660000-0x0000000002661000-memory.dmp

Filesize
4KB

Download
memory/2420-4-0x0000000002650000-0x0000000002651000-memory.dmp

Filesize
4KB

Download
memory/2420-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-42-0x0000000002C20000-0x0000000002C9F000-memory.dmp

Filesize
508KB

Download
memory/2420-41-0x00000000025D0000-0x00000000025D1000-memory.dmp

Filesize
4KB

Download
memory/2420-40-0x0000000002650000-0x0000000002750000-memory.dmp

Filesize
1024KB

Download
memory/2420-39-0x00000000027F0000-0x00000000027F1000-memory.dmp

Filesize
4KB

Download
memory/2420-29-0x0000000002760000-0x0000000002761000-memory.dmp

Filesize
4KB

Download
memory/2420-12-0x0000000002650000-0x0000000002750000-memory.dmp

Filesize
1024KB

Download
memory/2420-38-0x00000000027D0000-0x00000000027D1000-memory.dmp

Filesize
4KB

Download
memory/2420-37-0x00000000027E0000-0x00000000027E1000-memory.dmp

Filesize
4KB

Download
memory/2420-36-0x00000000027B0000-0x00000000027B1000-memory.dmp

Filesize
4KB

Download
memory/2420-28-0x00000000023F0000-0x00000000023F1000-memory.dmp

Filesize
4KB

Download
memory/2420-34-0x0000000002790000-0x0000000002791000-memory.dmp

Filesize
4KB

Download
memory/2420-15-0x0000000002650000-0x0000000002750000-memory.dmp

Filesize
1024KB

Download
memory/2420-32-0x0000000002770000-0x0000000002771000-memory.dmp

Filesize
4KB

Download
memory/2420-31-0x0000000002780000-0x0000000002781000-memory.dmp

Filesize
4KB

Download
memory/2420-8-0x0000000002650000-0x0000000002750000-memory.dmp

Filesize
1024KB

Download
memory/2420-10-0x0000000002650000-0x0000000002750000-memory.dmp

Filesize
1024KB

Download
memory/2420-35-0x00000000027C0000-0x00000000027C1000-memory.dmp

Filesize
4KB

Download
memory/2420-27-0x0000000002440000-0x0000000002441000-memory.dmp

Filesize
4KB

Download
memory/2420-26-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2420-25-0x0000000001BC0000-0x0000000001BC1000-memory.dmp

Filesize
4KB

Download
memory/2420-24-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

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

Filesize
4KB

Download
memory/2420-22-0x00000000025E0000-0x00000000025E1000-memory.dmp

Filesize
4KB

Download
memory/2420-21-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2420-20-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2420-19-0x00000000025B0000-0x00000000025B1000-memory.dmp

Filesize
4KB

Download
memory/2420-18-0x0000000000250000-0x0000000000260000-memory.dmp

Filesize
64KB

Download
memory/2420-17-0x0000000002650000-0x0000000002750000-memory.dmp

Filesize
1024KB

Download
memory/2420-3-0x0000000002650000-0x0000000002651000-memory.dmp

Filesize
4KB

Download
memory/2420-1-0x00000000025C0000-0x00000000025C3000-memory.dmp

Filesize
12KB

Download
memory/2420-16-0x0000000002650000-0x0000000002750000-memory.dmp

Filesize
1024KB

Download
memory/2424-11-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2424-14-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2424-13-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2808-48-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2808-50-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2808-52-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads