xtremerat | 7de3054bae0aa73e5ceebca435aea90f62b6a3401b989bb5118bbaf89fb33def

General

Target

8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe
Size

49KB
MD5

8174a96006f2acd6ae72b8e8b1657690
SHA1

df00f51fb1bbbe8a8f0726411cc9650906ee1553
SHA256

7de3054bae0aa73e5ceebca435aea90f62b6a3401b989bb5118bbaf89fb33def
SHA512

5a0486afc6e218583694fddb210c23d2591c038a8c6ee57226eddf1aaf20f16e139f0d617e54900a78061fe59aad88917d1487b83c662738f945bd7c7f9afd7d
SSDEEP

1536:zD5gnDtYxE0moj5O/rDjvmKILPmqV0s2koOqjeN:vaD8EJJDD7jm5Cq

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

franco1.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/4708-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4708-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2136-12-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4708-13-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2136-14-0x0000000010000000-0x000000001004D000-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 2644 set thread context of 4708	2644	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe	84

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4708-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4708-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4708-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4708-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2136-12-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4708-13-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2136-14-0x0000000010000000-0x000000001004D000-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
972	2136	WerFault.exe	85
4244	2136	WerFault.exe	85

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	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2644	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2644 wrote to memory of 4708	2644	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe	84
PID 2644 wrote to memory of 4708	2644	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe	84
PID 2644 wrote to memory of 4708	2644	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe	84
PID 2644 wrote to memory of 4708	2644	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe	84
PID 2644 wrote to memory of 4708	2644	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe	84
PID 2644 wrote to memory of 4708	2644	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe	84
PID 2644 wrote to memory of 4708	2644	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe	84
PID 2644 wrote to memory of 4708	2644	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe	84
PID 4708 wrote to memory of 2136	4708	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe	85
PID 4708 wrote to memory of 2136	4708	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe	85
PID 4708 wrote to memory of 2136	4708	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe	85
PID 4708 wrote to memory of 2136	4708	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe	85
PID 4708 wrote to memory of 1684	4708	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe	86
PID 4708 wrote to memory of 1684	4708	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe	86
PID 4708 wrote to memory of 1684	4708	8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2644
- C:\Users\Admin\AppData\Local\Temp\8174a96006f2acd6ae72b8e8b1657690_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4708
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2136
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2136 -s 484
      4⤵
      Program crash
      PID:972
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2136 -s 492
      4⤵
      Program crash
      PID:4244
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:1684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2136 -ip 2136
1⤵
PID:3580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2136 -ip 2136
1⤵
PID:2492

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/2136-12-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2136-14-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2644-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2644-1-0x00000000001C0000-0x00000000001C2000-memory.dmp

Filesize
8KB

Download
memory/2644-8-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4708-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4708-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4708-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4708-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4708-13-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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