xtremerat | be2151fc21d0beb5826cbc81ef3f1cd7a0a3e3ecc7c14df05c190767323d97f3

General

Target

JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe
Size

478KB
MD5

236d68831680ecee7a427f9406f501e6
SHA1

7fc3539c55dc47e052cd032f859d1dce6bba12a5
SHA256

be2151fc21d0beb5826cbc81ef3f1cd7a0a3e3ecc7c14df05c190767323d97f3
SHA512

8a26a775cc368d0b94f859b91be5bf69986c4b1cfebd6086fa2a59b2182faca20d09b56540d484a5178c814928a6197d2a99976f736d13675aad17cbf6d79093
SSDEEP

12288:XWWaRNw6TbC5uKXylBsQIF60eUWXZWOL2ZIjAsd:XWlSXQsQI0JTfL3Pd

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/2932-11-0x0000000010000000-0x0000000010051000-memory.dmp	family_xtremerat
behavioral2/memory/2932-12-0x0000000010000000-0x0000000010051000-memory.dmp	family_xtremerat
behavioral2/memory/2932-13-0x0000000010000000-0x0000000010051000-memory.dmp	family_xtremerat
behavioral2/memory/5044-18-0x0000000010000000-0x0000000010051000-memory.dmp	family_xtremerat
behavioral2/memory/5044-22-0x0000000010000000-0x0000000010051000-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

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\612bayrak.jpg.exe	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe
File created	C:\Windows\SysWOW64\612bayrak.jpg	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4892 set thread context of 2932	4892	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	83

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
3540	5044	WerFault.exe	84
4120	5044	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4892	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe
4892	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4892 wrote to memory of 2932	4892	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	83
PID 4892 wrote to memory of 2932	4892	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	83
PID 4892 wrote to memory of 2932	4892	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	83
PID 4892 wrote to memory of 2932	4892	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	83
PID 4892 wrote to memory of 2932	4892	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	83
PID 4892 wrote to memory of 2932	4892	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	83
PID 4892 wrote to memory of 2932	4892	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	83
PID 4892 wrote to memory of 2932	4892	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	83
PID 4892 wrote to memory of 2932	4892	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	83
PID 4892 wrote to memory of 2932	4892	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	83
PID 4892 wrote to memory of 2932	4892	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	83
PID 4892 wrote to memory of 2932	4892	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	83
PID 4892 wrote to memory of 2932	4892	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	83
PID 2932 wrote to memory of 5044	2932	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	84
PID 2932 wrote to memory of 5044	2932	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	84
PID 2932 wrote to memory of 5044	2932	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	84
PID 2932 wrote to memory of 5044	2932	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	84
PID 2932 wrote to memory of 1524	2932	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	85
PID 2932 wrote to memory of 1524	2932	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	85
PID 2932 wrote to memory of 1524	2932	JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4892
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_236d68831680ecee7a427f9406f501e6.exe"
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2932
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5044
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 484
      4⤵
      Program crash
      PID:3540
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 492
      4⤵
      Program crash
      PID:4120
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:1524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5044 -ip 5044
1⤵
PID:2304

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 5044 -ip 5044
1⤵
PID:4868

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/2932-11-0x0000000010000000-0x0000000010051000-memory.dmp

Filesize
324KB

Download
memory/2932-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2932-13-0x0000000010000000-0x0000000010051000-memory.dmp

Filesize
324KB

Download
memory/2932-12-0x0000000010000000-0x0000000010051000-memory.dmp

Filesize
324KB

Download
memory/4892-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4892-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4892-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4892-10-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4892-1-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4892-3-0x0000000000401000-0x000000000040C000-memory.dmp

Filesize
44KB

Download
memory/4892-0-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4892-2-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4892-16-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4892-15-0x0000000000401000-0x000000000040C000-memory.dmp

Filesize
44KB

Download
memory/5044-18-0x0000000010000000-0x0000000010051000-memory.dmp

Filesize
324KB

Download
memory/5044-22-0x0000000010000000-0x0000000010051000-memory.dmp

Filesize
324KB

Download

Analysis

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