xtremerat | 2700f8789dfefdfcd391ca9d89acd60d2cf5b49f4110c69baa04acfd3f5f9f2d

General

Target

JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe
Size

252KB
MD5

f4e819232565cee858b9ca81ba9c5321
SHA1

00b2d1282135e0bac771bb92927cf8861f83ab17
SHA256

2700f8789dfefdfcd391ca9d89acd60d2cf5b49f4110c69baa04acfd3f5f9f2d
SHA512

3d09181c325c2b16596a17cdf50544dcd50fe0bf1e3c38465ac49564a98794ceb97cf4892ad4055d81637a5875bc6565a8e99132c87e924da63c407cc4735732
SSDEEP

6144:cvkckiRGLZZPcj0nN/G6MCaP3xmMuCKczll6:a0iRGTPKz6MtJdurV

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

skullfire.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/2000-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2000-5-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2000-6-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4844-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4844-9-0x0000000010000000-0x000000001004A000-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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
44	1156	Process not Found

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 884 set thread context of 2000	884	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	88

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
2196	4844	WerFault.exe	89
2964	4844	WerFault.exe	89

System Location Discovery: System Language Discovery 1 TTPs 4 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_f4e819232565cee858b9ca81ba9c5321.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3540	MicrosoftEdgeUpdate.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
884	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 884 wrote to memory of 2000	884	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	88
PID 884 wrote to memory of 2000	884	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	88
PID 884 wrote to memory of 2000	884	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	88
PID 884 wrote to memory of 2000	884	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	88
PID 884 wrote to memory of 2000	884	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	88
PID 884 wrote to memory of 2000	884	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	88
PID 884 wrote to memory of 2000	884	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	88
PID 884 wrote to memory of 2000	884	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	88
PID 884 wrote to memory of 2000	884	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	88
PID 884 wrote to memory of 2000	884	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	88
PID 884 wrote to memory of 2000	884	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	88
PID 884 wrote to memory of 2000	884	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	88
PID 884 wrote to memory of 2000	884	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	88
PID 2000 wrote to memory of 4844	2000	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	89
PID 2000 wrote to memory of 4844	2000	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	89
PID 2000 wrote to memory of 4844	2000	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	89
PID 2000 wrote to memory of 4844	2000	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	89
PID 2000 wrote to memory of 1176	2000	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	90
PID 2000 wrote to memory of 1176	2000	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	90
PID 2000 wrote to memory of 1176	2000	JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:884
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f4e819232565cee858b9ca81ba9c5321.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2000
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4844
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4844 -s 480
      4⤵
      Program crash
      PID:2196
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4844 -s 488
      4⤵
      Program crash
      PID:2964
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:1176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4844 -ip 4844
1⤵
PID:632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4844 -ip 4844
1⤵
PID:1640

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIyIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODMzNzEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NDE5Mjc1MzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjAyNDI0MjkyIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:3540

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/884-0-0x0000000000400000-0x00000000004D6000-memory.dmp

Filesize
856KB

Download
memory/884-1-0x0000000000401000-0x00000000004B5000-memory.dmp

Filesize
720KB

Download
memory/884-7-0x0000000000400000-0x00000000004D6000-memory.dmp

Filesize
856KB

Download
memory/2000-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2000-5-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2000-6-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4844-8-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4844-9-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download

Analysis

Sharing