xtremerat | f5a4fe49a050d203aa082f124c28656c630f9412a7cfcbffd0481ae611aab0fe

General

Target

f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe
Size

108KB
MD5

f270c62d26b0fb5e22fedcefde6bc415
SHA1

95c1d077d6e7898876242929d520af63f668834e
SHA256

f5a4fe49a050d203aa082f124c28656c630f9412a7cfcbffd0481ae611aab0fe
SHA512

06da0c88631a74cec8cc992f6bdaa02a265eef748b0743a66afcf11e61dbb1bb00f2b64ff116e3fbcb7f45037a59a5d56cdda499d7bb560d3deccb1c3b36e30e
SSDEEP

1536:/fb0BwlEnkco5YG9pMvqc/qxh1zcQe5VEExUVS3i8Yzv90PB8Qd:wBFG9CyfCQ03ji8YL909d

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 8 IoCs

resource	yara_rule
behavioral2/memory/4432-5-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4608-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3344-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4432-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3344-12-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3344-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3344-14-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4608-16-0x0000000010000000-0x000000001004D000-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
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\{4JS7M4M0-WO13-CYDT-LITD-2ITF43270MAY}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4JS7M4M0-WO13-CYDT-LITD-2ITF43270MAY}\StubPath = "C:\\Windows\\system32\\InstallDir\\Server.exe restart"	svchost.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"	svchost.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"	svchost.exe

Drops file in System32 directory 2 IoCs

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2572 set thread context of 4432	2572	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe	83

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4432-2-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4432-4-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4432-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4432-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4608-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3344-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4432-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3344-12-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3344-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3344-14-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4608-16-0x0000000010000000-0x000000001004D000-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
1740	3344	WerFault.exe	85
868	4608	WerFault.exe	84
5016	3344	WerFault.exe	85
348	4608	WerFault.exe	84

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	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2572	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe
3344	svchost.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2572 wrote to memory of 4432	2572	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe	83
PID 2572 wrote to memory of 4432	2572	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe	83
PID 2572 wrote to memory of 4432	2572	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe	83
PID 2572 wrote to memory of 4432	2572	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe	83
PID 2572 wrote to memory of 4432	2572	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe	83
PID 2572 wrote to memory of 4432	2572	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe	83
PID 2572 wrote to memory of 4432	2572	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe	83
PID 2572 wrote to memory of 4432	2572	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe	83
PID 4432 wrote to memory of 4608	4432	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe	84
PID 4432 wrote to memory of 4608	4432	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe	84
PID 4432 wrote to memory of 4608	4432	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe	84
PID 4432 wrote to memory of 4608	4432	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe	84
PID 4432 wrote to memory of 3344	4432	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe	85
PID 4432 wrote to memory of 3344	4432	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe	85
PID 4432 wrote to memory of 3344	4432	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe	85
PID 4432 wrote to memory of 3344	4432	f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2572
- C:\Users\Admin\AppData\Local\Temp\f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f270c62d26b0fb5e22fedcefde6bc415_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4432
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4608
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4608 -s 480
      4⤵
      Program crash
      PID:868
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4608 -s 488
      4⤵
      Program crash
      PID:348
- - C:\Windows\SysWOW64\svchost.exe
    svchost.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:3344
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 972
      4⤵
      Program crash
      PID:1740
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 968
      4⤵
      Program crash
      PID:5016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4608 -ip 4608
1⤵
PID:3780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3344 -ip 3344
1⤵
PID:3252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3344 -ip 3344
1⤵
PID:1972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4608 -ip 4608
1⤵
PID:3724

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3344-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3344-12-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3344-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3344-14-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4432-2-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4432-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4432-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4432-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4432-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4608-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4608-16-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads