xtremerat | bda10e0579b0d2ed9404e5ec4241dab9534541c743e4e0f161500616107f5dda

General

Target

JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe
Size

357KB
MD5

a10bbd35a1ae3f09ca564c67a3f7b14c
SHA1

27915fbd0a61cccc9a4daba085396dd909add072
SHA256

bda10e0579b0d2ed9404e5ec4241dab9534541c743e4e0f161500616107f5dda
SHA512

c7deeed15e17e89a42a5df4e4422ba05074637f53b28d395ac3d09e49ef084c0bc09a2e823cdddf694f239c86e4201d6a72eed38cffe026a5f519fb945cbad4e
SSDEEP

6144:JWcxpO+bR4UxifbZE5p/FXhDUTBVUXLzOIgpLULhZwxJVTtl/W1dYgDtgUVMT:JWcx0mR6bZw7XBUqhgR0arVTXW1d1eUo

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/3528-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3528-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4720-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3528-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4720-12-0x0000000010000000-0x000000001004D000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1300 set thread context of 3528	1300	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe	84

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3528-4-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3528-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3528-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3528-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4720-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3528-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4720-12-0x0000000010000000-0x000000001004D000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4376	4720	WerFault.exe	85
1872	4720	WerFault.exe	85

System Location Discovery: System Language Discovery 1 TTPs 3 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_a10bbd35a1ae3f09ca564c67a3f7b14c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1300	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1300 wrote to memory of 3528	1300	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe	84
PID 1300 wrote to memory of 3528	1300	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe	84
PID 1300 wrote to memory of 3528	1300	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe	84
PID 1300 wrote to memory of 3528	1300	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe	84
PID 1300 wrote to memory of 3528	1300	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe	84
PID 1300 wrote to memory of 3528	1300	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe	84
PID 1300 wrote to memory of 3528	1300	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe	84
PID 1300 wrote to memory of 3528	1300	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe	84
PID 3528 wrote to memory of 4720	3528	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe	85
PID 3528 wrote to memory of 4720	3528	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe	85
PID 3528 wrote to memory of 4720	3528	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe	85
PID 3528 wrote to memory of 4720	3528	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe	85
PID 3528 wrote to memory of 2768	3528	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe	87
PID 3528 wrote to memory of 2768	3528	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe	87
PID 3528 wrote to memory of 2768	3528	JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1300
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a10bbd35a1ae3f09ca564c67a3f7b14c.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3528
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4720
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4720 -s 484
      4⤵
      Program crash
      PID:4376
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4720 -s 492
      4⤵
      Program crash
      PID:1872
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4720 -ip 4720
1⤵
PID:2268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4720 -ip 4720
1⤵
PID:2420

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

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Downloads

memory/1300-0-0x0000000000400000-0x00000000004A3000-memory.dmp

Filesize
652KB

Download
memory/1300-7-0x0000000000400000-0x00000000004A3000-memory.dmp

Filesize
652KB

Download
memory/3528-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3528-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3528-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3528-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3528-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4720-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4720-12-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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