xtremerat | 84079c86c2b28541dfd30a6593cd1c516cf3ceb6617e1b72c4df32e6e8b0889f

General

Target

54009613e47d93126d37dd7cb4a64534_JaffaCakes118.exe
Size

769KB
MD5

54009613e47d93126d37dd7cb4a64534
SHA1

fa0a507ddcd4dc8a17d85e74448702a2589f5582
SHA256

84079c86c2b28541dfd30a6593cd1c516cf3ceb6617e1b72c4df32e6e8b0889f
SHA512

522d4464727ea425f1e023cc26363124df6c84945472712dc348c9885e2f23bbbb880790e762b5f5249474798583d96bef1f65e9e0a4f756efb3eee73ac9572e
SSDEEP

24576:EoLwQGN2K3yWds0JkKyVDjVM8Qhpa0VUi6O:EoLljadsLhues

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

cuore.no-ip.org

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral1/memory/2844-24-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2920-30-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2844-34-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2844-23-0x0000000010000000-0x000000001004D000-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

Executes dropped EXE 2 IoCs

pid	Process
2696	7PB.exe
2844	7PB.exe

Loads dropped DLL 3 IoCs

pid	Process
2180	54009613e47d93126d37dd7cb4a64534_JaffaCakes118.exe
2180	54009613e47d93126d37dd7cb4a64534_JaffaCakes118.exe
2696	7PB.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2696 set thread context of 2844	2696	7PB.exe	31

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2844-24-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2920-30-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2844-34-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2844-23-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2844-22-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2844-18-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\sexy-singles.jpg	54009613e47d93126d37dd7cb4a64534_JaffaCakes118.exe
File opened for modification	C:\Windows\sexy-singles.jpg	DllHost.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 5 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DllHost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	54009613e47d93126d37dd7cb4a64534_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7PB.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7PB.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2540	DllHost.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2696	7PB.exe
2696	7PB.exe
2540	DllHost.exe
2540	DllHost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2696	2180	54009613e47d93126d37dd7cb4a64534_JaffaCakes118.exe	30
PID 2180 wrote to memory of 2696	2180	54009613e47d93126d37dd7cb4a64534_JaffaCakes118.exe	30
PID 2180 wrote to memory of 2696	2180	54009613e47d93126d37dd7cb4a64534_JaffaCakes118.exe	30
PID 2180 wrote to memory of 2696	2180	54009613e47d93126d37dd7cb4a64534_JaffaCakes118.exe	30
PID 2696 wrote to memory of 2844	2696	7PB.exe	31
PID 2696 wrote to memory of 2844	2696	7PB.exe	31
PID 2696 wrote to memory of 2844	2696	7PB.exe	31
PID 2696 wrote to memory of 2844	2696	7PB.exe	31
PID 2696 wrote to memory of 2844	2696	7PB.exe	31
PID 2696 wrote to memory of 2844	2696	7PB.exe	31
PID 2696 wrote to memory of 2844	2696	7PB.exe	31
PID 2696 wrote to memory of 2844	2696	7PB.exe	31
PID 2696 wrote to memory of 2844	2696	7PB.exe	31
PID 2844 wrote to memory of 2920	2844	7PB.exe	32
PID 2844 wrote to memory of 2920	2844	7PB.exe	32
PID 2844 wrote to memory of 2920	2844	7PB.exe	32
PID 2844 wrote to memory of 2920	2844	7PB.exe	32
PID 2844 wrote to memory of 2920	2844	7PB.exe	32
PID 2844 wrote to memory of 1804	2844	7PB.exe	33
PID 2844 wrote to memory of 1804	2844	7PB.exe	33
PID 2844 wrote to memory of 1804	2844	7PB.exe	33
PID 2844 wrote to memory of 1804	2844	7PB.exe	33
PID 2844 wrote to memory of 1804	2844	7PB.exe	33

C:\Users\Admin\AppData\Local\Temp\54009613e47d93126d37dd7cb4a64534_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\54009613e47d93126d37dd7cb4a64534_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Users\Admin\AppData\Local\Temp\7PB.exe
  "C:\Users\Admin\AppData\Local\Temp\7PB.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2696
- - C:\Users\Admin\AppData\Local\Temp\7PB.exe
    C:\Users\Admin\AppData\Local\Temp\7PB.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2844
  - - C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      4⤵
      System Location Discovery: System Language Discovery
      PID:2920
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      PID:1804

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:2540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

C:\Users\Admin\AppData\Local\Temp\7PB.exe

Filesize
684KB

MD5
b7ad0b8ca1cbf928fcd496108935182e

SHA1
96b7ee99c9cd5ab58efa3e7b4b5eda4cc9856b81

SHA256
a8af2e395a6b12fd67fbfb95eec22717331a1ac3f316b9297776f1b952e2c902

SHA512
8e88cd1c1c4d3ab7006f0127e753ecb9efc08167834c55dcb5daa77a70649bb0e32192694bbe1eb11a1966836ca5c76368742139b892d55f1deca06f99442ffc

Download Submit
C:\Windows\sexy-singles.jpg

Filesize
71KB

MD5
5b7197fa421f14fd57bdaf373418831b

SHA1
520a61ed4ff9e5980cd330129a249808acb78928

SHA256
2ef6870b48dc9fc9a84e26bfe611233d47bc22ea1fd02647f139f9751a7db663

SHA512
4f338ba8ef438a1914c8219a8a5e8b86cb97f95f56b6ac31aaf0d6267091603a4580f7a3acdce958f1e2feccfb8686d0f0393b44a61581c74460240fb12e6186

Download Submit
memory/2180-31-0x0000000002D00000-0x0000000002D02000-memory.dmp

Filesize
8KB

Download
memory/2180-11-0x0000000002BB0000-0x0000000002F6A000-memory.dmp

Filesize
3.7MB

Download
memory/2180-10-0x0000000002BB0000-0x0000000002F6A000-memory.dmp

Filesize
3.7MB

Download
memory/2180-33-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2540-32-0x00000000000B0000-0x00000000000B2000-memory.dmp

Filesize
8KB

Download
memory/2696-12-0x0000000000400000-0x00000000007BA000-memory.dmp

Filesize
3.7MB

Download
memory/2696-27-0x0000000000400000-0x00000000007BA000-memory.dmp

Filesize
3.7MB

Download
memory/2696-20-0x0000000003830000-0x0000000003BEA000-memory.dmp

Filesize
3.7MB

Download
memory/2844-24-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2844-34-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2844-23-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2844-22-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2844-18-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2844-25-0x0000000000400000-0x00000000007BA000-memory.dmp

Filesize
3.7MB

Download
memory/2920-28-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2920-30-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing