xtremerat | 1a4755ba998b10a4a4f0db268e4324af1453c9c6d1e12998275116e691eeb850

General

Target

JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe
Size

300KB
MD5

1d4876957c7273b09848839d7f9161fa
SHA1

6fce17d554492814fc8b603c79ea20932caecbff
SHA256

1a4755ba998b10a4a4f0db268e4324af1453c9c6d1e12998275116e691eeb850
SHA512

8964ceb8e3d006192de58caf5703cd1fc7d0b3359901a898ec0b3a599029f109c058c91c48df580724287ee7348495254395b5476544890ba71ee2ed84687841
SSDEEP

6144:BxOZDEYse1072Y1VjBgjcPAG/rFbYTs9IMuLq3MgqjoG53O:tYsx2Y1VjBgjANDFqsyjoY+

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

ro1or.zapto.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/1184-10-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/1184-9-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/1184-8-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/2692-14-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/2692-15-0x0000000010000000-0x0000000010045000-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 1672 set thread context of 1184	1672	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	87

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
2732	2692	WerFault.exe	88
2256	2692	WerFault.exe	88

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_1d4876957c7273b09848839d7f9161fa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1672	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 1184	1672	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	87
PID 1672 wrote to memory of 1184	1672	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	87
PID 1672 wrote to memory of 1184	1672	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	87
PID 1672 wrote to memory of 1184	1672	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	87
PID 1672 wrote to memory of 1184	1672	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	87
PID 1672 wrote to memory of 1184	1672	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	87
PID 1672 wrote to memory of 1184	1672	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	87
PID 1672 wrote to memory of 1184	1672	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	87
PID 1672 wrote to memory of 1184	1672	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	87
PID 1672 wrote to memory of 1184	1672	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	87
PID 1672 wrote to memory of 1184	1672	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	87
PID 1672 wrote to memory of 1184	1672	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	87
PID 1672 wrote to memory of 1184	1672	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	87
PID 1184 wrote to memory of 2692	1184	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	88
PID 1184 wrote to memory of 2692	1184	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	88
PID 1184 wrote to memory of 2692	1184	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	88
PID 1184 wrote to memory of 2692	1184	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	88
PID 1184 wrote to memory of 228	1184	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	89
PID 1184 wrote to memory of 228	1184	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	89
PID 1184 wrote to memory of 228	1184	JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1672
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1d4876957c7273b09848839d7f9161fa.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1184
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2692
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 476
      4⤵
      Program crash
      PID:2732
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 488
      4⤵
      Program crash
      PID:2256
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2692 -ip 2692
1⤵
PID:3496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2692 -ip 2692
1⤵
PID:5116

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/1184-10-0x0000000010000000-0x0000000010045000-memory.dmp

Filesize
276KB

Download
memory/1184-9-0x0000000010000000-0x0000000010045000-memory.dmp

Filesize
276KB

Download
memory/1184-13-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1184-8-0x0000000010000000-0x0000000010045000-memory.dmp

Filesize
276KB

Download
memory/1672-1-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1672-0-0x0000000000401000-0x0000000000403000-memory.dmp

Filesize
8KB

Download
memory/1672-3-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1672-4-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1672-7-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1672-12-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2692-14-0x0000000010000000-0x0000000010045000-memory.dmp

Filesize
276KB

Download
memory/2692-15-0x0000000010000000-0x0000000010045000-memory.dmp

Filesize
276KB

Download

Analysis

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