xtremerat | 23d4c103d5de5b0f9b215a213aa431cc4a500b726bea76bd326c5913f69189b3

General

Target

5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe
Size

56KB
MD5

5158d8d70b950bb864423bca80b809ca
SHA1

df6077f120092cb9e131feef0605cda3ba6c1979
SHA256

23d4c103d5de5b0f9b215a213aa431cc4a500b726bea76bd326c5913f69189b3
SHA512

1e85455969ea6d11a1fc013ddcd395e38afbb690d3fee0c1f281d93311e0caeb3f7e4f7000fbec7811b9a6819ddb806d1b92e71cb349c845df61bc327609f8fa
SSDEEP

768:bKh7PU5H1xSHEBIuM8+SwZMNUyvsUxdY7GPyir5KIExlkAM7U3ta5p:ePIucIVULv1mlUXw90

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

nait.no-ip.biz

Signatures

Detect XtremeRAT payload 8 IoCs

resource	yara_rule
behavioral2/memory/4692-6-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4692-5-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3320-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3740-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4692-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3740-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3320-13-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3740-14-0x0000000010000000-0x000000001004D000-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

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\system32\\InstallDir\\Server.exe restart"	notepad.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}	notepad.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\\system32\\InstallDir\\Server.exe"	notepad.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\Server.exe"	notepad.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\InstallDir\Server.exe	notepad.exe
File created	C:\Windows\SysWOW64\InstallDir\Server.exe	notepad.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4152 set thread context of 4692	4152	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe	84

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4692-2-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4692-4-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4692-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4692-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3320-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3740-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4692-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3740-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3320-13-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3740-14-0x0000000010000000-0x000000001004D000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 4 IoCs

pid	pid_target	Process	procid_target
440	3320	WerFault.exe	85
1632	3740	WerFault.exe	86
1020	3320	WerFault.exe	85
2212	3740	WerFault.exe	86

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	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4152	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe
3740	notepad.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4152 wrote to memory of 4692	4152	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe	84
PID 4152 wrote to memory of 4692	4152	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe	84
PID 4152 wrote to memory of 4692	4152	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe	84
PID 4152 wrote to memory of 4692	4152	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe	84
PID 4152 wrote to memory of 4692	4152	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe	84
PID 4152 wrote to memory of 4692	4152	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe	84
PID 4152 wrote to memory of 4692	4152	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe	84
PID 4152 wrote to memory of 4692	4152	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe	84
PID 4692 wrote to memory of 3320	4692	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe	85
PID 4692 wrote to memory of 3320	4692	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe	85
PID 4692 wrote to memory of 3320	4692	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe	85
PID 4692 wrote to memory of 3320	4692	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe	85
PID 4692 wrote to memory of 3740	4692	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe	86
PID 4692 wrote to memory of 3740	4692	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe	86
PID 4692 wrote to memory of 3740	4692	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe	86
PID 4692 wrote to memory of 3740	4692	5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4152
- C:\Users\Admin\AppData\Local\Temp\5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\5158d8d70b950bb864423bca80b809ca_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4692
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3320
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3320 -s 480
      4⤵
      Program crash
      PID:440
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3320 -s 488
      4⤵
      Program crash
      PID:1020
- - C:\Windows\SysWOW64\notepad.exe
    notepad.exe
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - Adds Run key to start application
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:3740
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3740 -s 976
      4⤵
      Program crash
      PID:1632
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3740 -s 984
      4⤵
      Program crash
      PID:2212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3320 -ip 3320
1⤵
PID:4188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3740 -ip 3740
1⤵
PID:3020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3320 -ip 3320
1⤵
PID:1520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3740 -ip 3740
1⤵
PID:1924

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/3320-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3320-13-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3740-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3740-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3740-14-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4692-2-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4692-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4692-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4692-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4692-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads