xtremerat | 2b9f5309188f2c3e09c24b8e5045588c60aee962a0f0d7878001051ae2a2e230

General

Target

JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe
Size

80KB
MD5

b79cbfb9f299a26c81d60b0457611b17
SHA1

6cb2e7a802187530e70911d9086748f7267adae3
SHA256

2b9f5309188f2c3e09c24b8e5045588c60aee962a0f0d7878001051ae2a2e230
SHA512

9a75e44b74662dbfa3553d7796b07694b71f936c3a00145a641fd1a57b53a30c08dbd1351320245ad1378fb8869ea5a48c5886d1c9c325e40451993a30b530ce
SSDEEP

1536:CoDkIv7NZRGc7lcjEoAPf3R/rD45ZfElKns9:Co9dlHoAH3ijfElKs9

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

azweb.zapto.org

ƕĖWebcamIaxweb.zapto.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral1/memory/5212-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/5212-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/5616-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/5212-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/5616-11-0x0000000010000000-0x000000001004D000-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 6012 set thread context of 5212	6012	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe	85

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/5212-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/5212-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/5212-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/5212-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/5616-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/5212-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/5616-11-0x0000000010000000-0x000000001004D000-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
4556	5616	WerFault.exe	88
4636	5616	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_b79cbfb9f299a26c81d60b0457611b17.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
6012	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 6012 wrote to memory of 5212	6012	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe	85
PID 6012 wrote to memory of 5212	6012	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe	85
PID 6012 wrote to memory of 5212	6012	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe	85
PID 6012 wrote to memory of 5212	6012	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe	85
PID 6012 wrote to memory of 5212	6012	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe	85
PID 6012 wrote to memory of 5212	6012	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe	85
PID 6012 wrote to memory of 5212	6012	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe	85
PID 6012 wrote to memory of 5212	6012	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe	85
PID 6012 wrote to memory of 5212	6012	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe	85
PID 5212 wrote to memory of 5616	5212	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe	88
PID 5212 wrote to memory of 5616	5212	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe	88
PID 5212 wrote to memory of 5616	5212	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe	88
PID 5212 wrote to memory of 5616	5212	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe	88
PID 5212 wrote to memory of 4040	5212	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe	89
PID 5212 wrote to memory of 4040	5212	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe	89
PID 5212 wrote to memory of 4040	5212	JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:6012
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b79cbfb9f299a26c81d60b0457611b17.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5212
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5616
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5616 -s 472
      4⤵
      Program crash
      PID:4556
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5616 -s 500
      4⤵
      Program crash
      PID:4636
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5616 -ip 5616
1⤵
PID:4580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 5616 -ip 5616
1⤵
PID:4872

Network

MITRE ATT&CK Enterprise v16

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/5212-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/5212-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/5212-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/5212-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/5212-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/5616-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/5616-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/6012-0-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/6012-6-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download

Analysis

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