xtremerat | 457b9a2c7a47ed94815c999b521016bc178a758af63a2c7e7940dda2a8e0c315

General

Target

d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe
Size

534KB
MD5

d40a96c9c09c1d2022a3c6a575f1ee55
SHA1

c3c76d8ebd653952b58d59a916975997c3dd98ab
SHA256

457b9a2c7a47ed94815c999b521016bc178a758af63a2c7e7940dda2a8e0c315
SHA512

ad3bdc48391e70516151643245ee53528071d5fd8a03b239995af19c450b2da9ab4708cf9dc4bb3a7cc049a37c99e91a6295df16fc1775e592a4d8437d38fc0f
SSDEEP

6144:YUG1GCwehM2h0jUUOr4O7xFJ9uIOVX4sF+1TIYm:wPhM1jsMkDTIh

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/4284-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4284-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4144-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4284-12-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4144-13-0x0000000010000000-0x000000001004D000-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

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4284-4-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4284-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4284-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4284-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4144-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4284-12-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4144-13-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2608 set thread context of 4284	2608	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe	85

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
3376	4144	WerFault.exe	86
2788	4144	WerFault.exe	86

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	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2608	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2608 wrote to memory of 4284	2608	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe	85
PID 2608 wrote to memory of 4284	2608	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe	85
PID 2608 wrote to memory of 4284	2608	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe	85
PID 2608 wrote to memory of 4284	2608	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe	85
PID 2608 wrote to memory of 4284	2608	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe	85
PID 2608 wrote to memory of 4284	2608	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe	85
PID 2608 wrote to memory of 4284	2608	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe	85
PID 2608 wrote to memory of 4284	2608	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe	85
PID 4284 wrote to memory of 4144	4284	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe	86
PID 4284 wrote to memory of 4144	4284	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe	86
PID 4284 wrote to memory of 4144	4284	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe	86
PID 4284 wrote to memory of 4144	4284	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe	86
PID 4284 wrote to memory of 336	4284	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe	88
PID 4284 wrote to memory of 336	4284	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe	88
PID 4284 wrote to memory of 336	4284	d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe	88

C:\Users\Admin\AppData\Local\Temp\d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2608
- C:\Users\Admin\AppData\Local\Temp\d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d40a96c9c09c1d2022a3c6a575f1ee55_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4284
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4144
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4144 -s 472
      4⤵
      Program crash
      PID:3376
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4144 -s 488
      4⤵
      Program crash
      PID:2788
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4144 -ip 4144
1⤵
PID:3772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4144 -ip 4144
1⤵
PID:2224

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

memory/2608-0-0x0000000000400000-0x0000000000502000-memory.dmp

Filesize
1.0MB

Download
memory/2608-9-0x0000000000400000-0x0000000000502000-memory.dmp

Filesize
1.0MB

Download
memory/4144-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4144-13-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4284-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4284-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4284-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4284-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4284-12-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing