xtremerat | 828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584b

Analysis

max time kernel
117s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-12-2024 08:38

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General

Target

828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe
Size

192KB
MD5

cce95b5fbbefe57e375f4269a7084b20
SHA1

777f897a6c0fc7f20aa58f1c07b211059344fd7c
SHA256

828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584b
SHA512

4559672d7413ecbd46fc585101a3dce60cfdd0ee751c969e723eeea913e16ddd5831233b782bbe66d9aae10dea1b9f076d774de793e8eaa7d867db1709313a07
SSDEEP

3072:HFeFF53XcYMT96HM0XUGXU2Fo21364EoiJeeI+StSqYLj8MfseR1zA7Yw9+dlSk:H4FF5HbInVW5GJZ2tNYLj8MfsimYwYd9

Score

10^/10

xtremerat bootkit discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral1/memory/2632-39-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2664-46-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2664-48-0x0000000000C80000-0x0000000000C96000-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}	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.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"	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.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"	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.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	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2840 set thread context of 2632	2840	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	30

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2632-35-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2632-39-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2632-37-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2664-46-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2664-48-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\Server.exe	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe
File created	C:\Windows\InstallDir\Server.exe	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.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	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2840	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe
2664	explorer.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2840 wrote to memory of 2632	2840	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	30
PID 2840 wrote to memory of 2632	2840	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	30
PID 2840 wrote to memory of 2632	2840	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	30
PID 2840 wrote to memory of 2632	2840	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	30
PID 2840 wrote to memory of 2632	2840	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	30
PID 2840 wrote to memory of 2632	2840	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	30
PID 2840 wrote to memory of 2632	2840	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	30
PID 2840 wrote to memory of 2632	2840	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	30
PID 2840 wrote to memory of 2632	2840	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	30
PID 2632 wrote to memory of 2636	2632	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	31
PID 2632 wrote to memory of 2636	2632	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	31
PID 2632 wrote to memory of 2636	2632	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	31
PID 2632 wrote to memory of 2636	2632	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	31
PID 2632 wrote to memory of 2664	2632	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	32
PID 2632 wrote to memory of 2664	2632	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	32
PID 2632 wrote to memory of 2664	2632	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	32
PID 2632 wrote to memory of 2664	2632	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	32
PID 2632 wrote to memory of 2664	2632	828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe	32

C:\Users\Admin\AppData\Local\Temp\828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe
"C:\Users\Admin\AppData\Local\Temp\828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.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:2840
- C:\Users\Admin\AppData\Local\Temp\828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.exe
  "C:\Users\Admin\AppData\Local\Temp\828f6dd5d0be24ea0b517a5d939c7e2dde84239fea9b6b9eeea89ee383f5584bN.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:2632
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:2636
- - C:\Windows\SysWOW64\explorer.exe
    explorer.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2664

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/2632-35-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2632-37-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2632-39-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2664-48-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2664-44-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2664-46-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2840-23-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2840-20-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2840-10-0x00000000025D0000-0x00000000025D1000-memory.dmp

Filesize
4KB

Download
memory/2840-33-0x00000000027A0000-0x00000000027A1000-memory.dmp

Filesize
4KB

Download
memory/2840-34-0x00000000027C0000-0x00000000027C1000-memory.dmp

Filesize
4KB

Download
memory/2840-32-0x00000000027B0000-0x00000000027B1000-memory.dmp

Filesize
4KB

Download
memory/2840-31-0x0000000002640000-0x0000000002641000-memory.dmp

Filesize
4KB

Download
memory/2840-30-0x0000000002790000-0x0000000002791000-memory.dmp

Filesize
4KB

Download
memory/2840-29-0x0000000002610000-0x0000000002611000-memory.dmp

Filesize
4KB

Download
memory/2840-28-0x0000000002630000-0x0000000002631000-memory.dmp

Filesize
4KB

Download
memory/2840-27-0x00000000025F0000-0x00000000025F1000-memory.dmp

Filesize
4KB

Download
memory/2840-26-0x0000000002600000-0x0000000002601000-memory.dmp

Filesize
4KB

Download
memory/2840-25-0x00000000025D0000-0x00000000025D1000-memory.dmp

Filesize
4KB

Download
memory/2840-24-0x00000000025E0000-0x00000000025E1000-memory.dmp

Filesize
4KB

Download
memory/2840-0-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2840-22-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/2840-21-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/2840-9-0x00000000025E0000-0x00000000025E1000-memory.dmp

Filesize
4KB

Download
memory/2840-19-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2840-18-0x0000000001DD0000-0x0000000001DD1000-memory.dmp

Filesize
4KB

Download
memory/2840-17-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2840-16-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2840-15-0x00000000025A0000-0x00000000025A1000-memory.dmp

Filesize
4KB

Download
memory/2840-14-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2840-13-0x0000000000620000-0x0000000000621000-memory.dmp

Filesize
4KB

Download
memory/2840-12-0x0000000000240000-0x0000000000250000-memory.dmp

Filesize
64KB

Download
memory/2840-8-0x00000000025E0000-0x00000000025E1000-memory.dmp

Filesize
4KB

Download
memory/2840-2-0x0000000001DC0000-0x0000000001DC3000-memory.dmp

Filesize
12KB

Download
memory/2840-40-0x0000000002C20000-0x0000000002C9F000-memory.dmp

Filesize
508KB

Download
memory/2840-3-0x00000000025D0000-0x00000000025D1000-memory.dmp

Filesize
4KB

Download
memory/2840-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2840-5-0x00000000025E0000-0x00000000025E1000-memory.dmp

Filesize
4KB

Download
memory/2840-7-0x00000000025E0000-0x00000000025E1000-memory.dmp

Filesize
4KB

Download
memory/2840-6-0x00000000025E0000-0x00000000025E1000-memory.dmp

Filesize
4KB

Download
memory/2840-4-0x00000000025D0000-0x00000000025D1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads