xtremerat | b2ea376b9355740b3b9a6340451719bca4d931fbf6c4be2da5a5985f19e47342

General

Target

JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe
Size

172KB
MD5

06352d4f781fe57b0c8201054e70f532
SHA1

84c4f62b3fc93bd144dc9e14d5cb9e056a963630
SHA256

b2ea376b9355740b3b9a6340451719bca4d931fbf6c4be2da5a5985f19e47342
SHA512

6a944d081dd45275e2c4751fd14ced0778aacb15bbb1242582de2938ae4d40cb66070f9e3ce8dfbd3de4302148fa693d2d5ac2c237cb95954d4051fc0068fac3
SSDEEP

1536:12KhrcWIa9so/DLOCoMlezuldK1vmJ7Kx19b6oP7d3UnWEE/n:12/WIk7MSdBJmXdP7N5

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/2896-5-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2896-6-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2700-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2896-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2700-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2700-10-0x0000000010000000-0x000000001004D000-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 3396 set thread context of 2896	3396	JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe	83

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2896-2-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2896-4-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2896-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2896-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2700-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2896-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2700-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2700-10-0x0000000010000000-0x000000001004D000-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
2448	2700	WerFault.exe	84
2320	2700	WerFault.exe	84

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_06352d4f781fe57b0c8201054e70f532.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3396	JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3396 wrote to memory of 2896	3396	JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe	83
PID 3396 wrote to memory of 2896	3396	JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe	83
PID 3396 wrote to memory of 2896	3396	JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe	83
PID 3396 wrote to memory of 2896	3396	JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe	83
PID 3396 wrote to memory of 2896	3396	JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe	83
PID 3396 wrote to memory of 2896	3396	JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe	83
PID 3396 wrote to memory of 2896	3396	JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe	83
PID 3396 wrote to memory of 2896	3396	JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe	83
PID 2896 wrote to memory of 2700	2896	JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe	84
PID 2896 wrote to memory of 2700	2896	JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe	84
PID 2896 wrote to memory of 2700	2896	JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe	84
PID 2896 wrote to memory of 2700	2896	JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3396
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_06352d4f781fe57b0c8201054e70f532.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2896
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2700
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 720
      4⤵
      Program crash
      PID:2448
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 784
      4⤵
      Program crash
      PID:2320

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2700 -ip 2700
1⤵
PID:4956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2700 -ip 2700
1⤵
PID:4624

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/2700-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2700-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2700-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2896-2-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2896-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2896-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2896-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2896-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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