xtremerat | 1be1e3c54902c2fa8481888505ec900185231713ed07fc85e140f489965f6855

Analysis

max time kernel
149s
max time network
138s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-01-2025 00:32

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General

Target

JaffaCakes118_40d95f0aae2b8cfaaa5d7c1d30b2e5eb.exe
Size

621KB
MD5

40d95f0aae2b8cfaaa5d7c1d30b2e5eb
SHA1

e5ab01d677560b0b4136b3a2197096360d0d66fd
SHA256

1be1e3c54902c2fa8481888505ec900185231713ed07fc85e140f489965f6855
SHA512

926220911b2176443bc6392d7fbe3727f3de37e1660e8e5e6cc7d2d600b38c3ce46d81d2e1d1d6a7c7637c402afab9c7ed0791187360012ff8d9d31f8f049936
SSDEEP

12288:Z4BL/9Z2VngICLCi+wLquqMBBUsebeFZnbXCQJiI:ZKlZ3IK+Eqib86nTTs

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/2912-28-0x0000000000C80000-0x0000000000C95000-memory.dmp	family_xtremerat
behavioral1/memory/2188-33-0x0000000000C80000-0x0000000000C95000-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 4 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\{XXOI178Y-H533-RC7V-U410-K7NT8L525846}	SERVER.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{XXOI178Y-H533-RC7V-U410-K7NT8L525846}\StubPath = "C:\\Windows\\system32\\InstallDir\\ctfmon.exe restart"	SERVER.EXE
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{XXOI178Y-H533-RC7V-U410-K7NT8L525846}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{XXOI178Y-H533-RC7V-U410-K7NT8L525846}\StubPath = "C:\\Windows\\system32\\InstallDir\\ctfmon.exe"	svchost.exe

Executes dropped EXE 2 IoCs

pid	Process
2376	AFONSOBR LOADER V08.EXE
2188	SERVER.EXE

Loads dropped DLL 4 IoCs

pid	Process
2520	JaffaCakes118_40d95f0aae2b8cfaaa5d7c1d30b2e5eb.exe
2520	JaffaCakes118_40d95f0aae2b8cfaaa5d7c1d30b2e5eb.exe
2520	JaffaCakes118_40d95f0aae2b8cfaaa5d7c1d30b2e5eb.exe
2520	JaffaCakes118_40d95f0aae2b8cfaaa5d7c1d30b2e5eb.exe

Adds Run key to start application 2 TTPs 4 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\\ctfmon.exe"	SERVER.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\ctfmon.exe"	SERVER.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\InstallDir\\ctfmon.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\ctfmon.exe"	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\InstallDir\ctfmon.exe	SERVER.EXE
File created	C:\Windows\SysWOW64\InstallDir\ctfmon.exe	SERVER.EXE

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0008000000016c4e-12.dat	upx
behavioral1/memory/2520-14-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral1/memory/2912-28-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral1/memory/2188-33-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx

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 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	JaffaCakes118_40d95f0aae2b8cfaaa5d7c1d30b2e5eb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AFONSOBR LOADER V08.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SERVER.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE
2376	AFONSOBR LOADER V08.EXE

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2188	SERVER.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2376	2520	JaffaCakes118_40d95f0aae2b8cfaaa5d7c1d30b2e5eb.exe	31
PID 2520 wrote to memory of 2376	2520	JaffaCakes118_40d95f0aae2b8cfaaa5d7c1d30b2e5eb.exe	31
PID 2520 wrote to memory of 2376	2520	JaffaCakes118_40d95f0aae2b8cfaaa5d7c1d30b2e5eb.exe	31
PID 2520 wrote to memory of 2376	2520	JaffaCakes118_40d95f0aae2b8cfaaa5d7c1d30b2e5eb.exe	31
PID 2520 wrote to memory of 2188	2520	JaffaCakes118_40d95f0aae2b8cfaaa5d7c1d30b2e5eb.exe	32
PID 2520 wrote to memory of 2188	2520	JaffaCakes118_40d95f0aae2b8cfaaa5d7c1d30b2e5eb.exe	32
PID 2520 wrote to memory of 2188	2520	JaffaCakes118_40d95f0aae2b8cfaaa5d7c1d30b2e5eb.exe	32
PID 2520 wrote to memory of 2188	2520	JaffaCakes118_40d95f0aae2b8cfaaa5d7c1d30b2e5eb.exe	32
PID 2188 wrote to memory of 2912	2188	SERVER.EXE	33
PID 2188 wrote to memory of 2912	2188	SERVER.EXE	33
PID 2188 wrote to memory of 2912	2188	SERVER.EXE	33
PID 2188 wrote to memory of 2912	2188	SERVER.EXE	33
PID 2188 wrote to memory of 2912	2188	SERVER.EXE	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40d95f0aae2b8cfaaa5d7c1d30b2e5eb.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40d95f0aae2b8cfaaa5d7c1d30b2e5eb.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Users\Admin\AppData\Local\Temp\AFONSOBR LOADER V08.EXE
  "C:\Users\Admin\AppData\Local\Temp\AFONSOBR LOADER V08.EXE"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2376
- C:\Users\Admin\AppData\Local\Temp\SERVER.EXE
  "C:\Users\Admin\AppData\Local\Temp\SERVER.EXE"
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2188
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:2912

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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

\Users\Admin\AppData\Local\Temp\AFONSOBR LOADER V08.EXE

Filesize
540KB

MD5
6501b34429972096598dc19a688ededf

SHA1
607de33670c1fd3fac85520c3b2069c6d2aca8df

SHA256
960e6263f86c20eb885c4c5e7660aa24c4aff11512b246c154eee4dbf52d8c0b

SHA512
85caeaa2b2e2d03eb4048b6a3d396df03553273df6e18e6b517202e1944fa639ccd41c766275ea12e65854d697542619aa02b0d486c1243ce368157531100046

Download Submit
\Users\Admin\AppData\Local\Temp\SERVER.EXE

Filesize
19KB

MD5
f8a143bbe52fa1e447505fe32d2afda5

SHA1
381806c29114a754a49db2b71c357bdc2104e034

SHA256
da0a25ac122265f455909be484b02c855ecf4f2cdfec076d4a8fc79bb6f5f6d2

SHA512
7c37300147c245788368c58f6bf6c68c43524ca2815c93b5aaf9b2f72136868d6801832f410248f5193774293c1540adbf4476d26b55f53263245af0503ad292

Download Submit
memory/2188-33-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/2376-11-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2376-31-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2376-34-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/2520-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2520-32-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2912-28-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/2912-26-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download