xtremerat | b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9

General

Target

b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe
Size

21KB
MD5

cecb843de407b6085762057b666dcc60
SHA1

2682ba87248e18bebd7f90237de53307ccfd393d
SHA256

b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9
SHA512

9ff87c05c67ccb815e2cfedb90cc8d8ce1fae6906b92c11638ee97d096aa118ef2035f35dbd9c98d5b03f661c69e2064cd14c58e1ae852bd35d6d34df3e1a81d
SSDEEP

384:PIdmF+TH95xJMu/0PlxjV8BINhuLJ37tMOpuqqz3KK7eIVmhvYndM5SLP5pLR:PIsF8HdbKjV8BX7Vy6K7eIVaAndEKPl

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

hackermeker.no-ip.biz

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/4428-5-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/4656-4-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/780-7-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/4428-10-0x0000000000C80000-0x0000000000C96000-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\{VM2MQM3S-58A6-2OJM-T5A3-K2ITI87YIB71}	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{VM2MQM3S-58A6-2OJM-T5A3-K2ITI87YIB71}\StubPath = "C:\\Windows\\InstallDir\\jk.exe restart"	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe

Deletes itself 1 IoCs

pid	Process
4656	explorer.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\\jk.exe"	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\jk.exe"	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/780-0-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/4428-5-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/4656-4-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/780-7-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/4428-10-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\jk.exe	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe
File created	C:\Windows\InstallDir\jk.exe	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.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	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4428	explorer.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 780 wrote to memory of 4136	780	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe	85
PID 780 wrote to memory of 4136	780	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe	85
PID 780 wrote to memory of 4136	780	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe	85
PID 780 wrote to memory of 2296	780	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe	86
PID 780 wrote to memory of 2296	780	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe	86
PID 780 wrote to memory of 4428	780	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe	87
PID 780 wrote to memory of 4428	780	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe	87
PID 780 wrote to memory of 4428	780	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe	87
PID 780 wrote to memory of 4656	780	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe	88
PID 780 wrote to memory of 4656	780	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe	88
PID 780 wrote to memory of 4656	780	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe	88
PID 780 wrote to memory of 4656	780	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe	88
PID 780 wrote to memory of 4428	780	b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe	87

C:\Users\Admin\AppData\Local\Temp\b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe
"C:\Users\Admin\AppData\Local\Temp\b439daa13221e440f868f139f62f63c8390821ffb81e69b43b899b394d6fbcb9N.exe"
1⤵
- 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:780
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:4136
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:2296
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4428
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/780-0-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/780-7-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/4428-5-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/4428-10-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/4656-4-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads