xtremerat | 5fb15d3c83c58c31962be33f1483d8834ab9517c60ba7401fae80f94063c0f4c

General

Target

c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe
Size

272KB
MD5

c26177444477d6eb09a7378d1a500554
SHA1

d3684c28d52844658f4dc4bd359371c97437c1f3
SHA256

5fb15d3c83c58c31962be33f1483d8834ab9517c60ba7401fae80f94063c0f4c
SHA512

fd2d4468976e6ccba7b1bf0af4ecbeec242e3bdf56b243a21663d948ea785803718564c5fc99984eb83dacfa3a4d5d84626ddd43a64247f170dc200e928a33ea
SSDEEP

6144:n9XiqwXqQzaZMzRpXEN9Kbdt7SDrJ8LP/xBCY5jQWWNj6:nJiqwXg4PEQdt7SJ8jf5jC6

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

wer99.no-ip.org

Signatures

Detect XtremeRAT payload 11 IoCs

resource	yara_rule
behavioral2/memory/1120-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1120-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1120-5-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1120-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/392-9-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4344-10-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1120-11-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4344-15-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4344-14-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/392-17-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4344-19-0x0000000010000000-0x000000001004A000-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

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}	calc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Program Files (x86)\\InstallDir\\Server.exe restart"	calc.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:\\Program Files (x86)\\InstallDir\\Server.exe"	calc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Program Files (x86)\\InstallDir\\Server.exe"	calc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4976 set thread context of 1120	4976	c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe	87

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\InstallDir\	calc.exe
File opened for modification	C:\Program Files (x86)\InstallDir\Server.exe	calc.exe
File created	C:\Program Files (x86)\InstallDir\Server.exe	calc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 3 IoCs

pid	pid_target	Process	procid_target
5116	392	WerFault.exe	88
60	392	WerFault.exe	88
3168	4344	WerFault.exe	89

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	c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c26177444477d6eb09a7378d1a500554_JaffaCakes118.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	calc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4976	c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe
4344	calc.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4976 wrote to memory of 1120	4976	c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe	87
PID 4976 wrote to memory of 1120	4976	c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe	87
PID 4976 wrote to memory of 1120	4976	c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe	87
PID 4976 wrote to memory of 1120	4976	c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe	87
PID 4976 wrote to memory of 1120	4976	c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe	87
PID 4976 wrote to memory of 1120	4976	c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe	87
PID 4976 wrote to memory of 1120	4976	c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe	87
PID 4976 wrote to memory of 1120	4976	c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe	87
PID 4976 wrote to memory of 1120	4976	c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe	87
PID 4976 wrote to memory of 1120	4976	c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe	87
PID 4976 wrote to memory of 1120	4976	c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe	87
PID 4976 wrote to memory of 1120	4976	c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe	87
PID 4976 wrote to memory of 1120	4976	c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe	87
PID 1120 wrote to memory of 392	1120	c26177444477d6eb09a7378d1a500554_JaffaCakes118.EXE	88
PID 1120 wrote to memory of 392	1120	c26177444477d6eb09a7378d1a500554_JaffaCakes118.EXE	88
PID 1120 wrote to memory of 392	1120	c26177444477d6eb09a7378d1a500554_JaffaCakes118.EXE	88
PID 1120 wrote to memory of 392	1120	c26177444477d6eb09a7378d1a500554_JaffaCakes118.EXE	88
PID 1120 wrote to memory of 4344	1120	c26177444477d6eb09a7378d1a500554_JaffaCakes118.EXE	89
PID 1120 wrote to memory of 4344	1120	c26177444477d6eb09a7378d1a500554_JaffaCakes118.EXE	89
PID 1120 wrote to memory of 4344	1120	c26177444477d6eb09a7378d1a500554_JaffaCakes118.EXE	89
PID 1120 wrote to memory of 4344	1120	c26177444477d6eb09a7378d1a500554_JaffaCakes118.EXE	89

C:\Users\Admin\AppData\Local\Temp\c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c26177444477d6eb09a7378d1a500554_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4976
- C:\Users\Admin\AppData\Local\Temp\c26177444477d6eb09a7378d1a500554_JaffaCakes118.EXE
  "C:\Users\Admin\AppData\Local\Temp\c26177444477d6eb09a7378d1a500554_JaffaCakes118.EXE"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1120
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:392
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 480
      4⤵
      Program crash
      PID:5116
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 488
      4⤵
      Program crash
      PID:60
- - C:\Windows\SysWOW64\calc.exe
    calc.exe
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - Adds Run key to start application
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:4344
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4344 -s 984
      4⤵
      Program crash
      PID:3168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 392 -ip 392
1⤵
PID:4476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 392 -ip 392
1⤵
PID:3592

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4344 -ip 4344
1⤵
PID:4724

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/392-9-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/392-17-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1120-5-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1120-8-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1120-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1120-11-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1120-3-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4344-10-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4344-15-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4344-14-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4344-19-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4976-0-0x0000000000400000-0x0000000000548000-memory.dmp

Filesize
1.3MB

Download
memory/4976-7-0x0000000000400000-0x0000000000548000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads