xtremerat | f35859dd6d0f0db6e0af9b0aa57cbea9b31386f961c8a5e898a0c65e7fb25786

General

Target

JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe
Size

104KB
MD5

11cb857ecd7fb2227bbbaf4b6b1c6f89
SHA1

0b954eed5f7e49c98cd237e5075e759a7b0b34b0
SHA256

f35859dd6d0f0db6e0af9b0aa57cbea9b31386f961c8a5e898a0c65e7fb25786
SHA512

3e2e38e9146a04804cff39320a8fb976eaab864f0af69777c395f171cd72107b3b4ccaa99d58ba0284a8e42e25233cbd3fef9cd2887e01d65f2d6048473d2fce
SSDEEP

3072:hkNBF21BhrTEC/V9E0htgO1uEThDnPIVLqSo3izNbfn32:eolAOgENncp2iZf32

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Signatures

Detect XtremeRAT payload 7 IoCs

resource	yara_rule
behavioral2/memory/5060-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/5060-5-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/5060-6-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/5060-7-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/5044-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/5060-9-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/5044-10-0x0000000010000000-0x000000001004A000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4992 set thread context of 5060	4992	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.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
2144	5044	WerFault.exe	84
1996	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	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4992	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4992 wrote to memory of 5060	4992	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	83
PID 4992 wrote to memory of 5060	4992	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	83
PID 4992 wrote to memory of 5060	4992	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	83
PID 4992 wrote to memory of 5060	4992	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	83
PID 4992 wrote to memory of 5060	4992	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	83
PID 4992 wrote to memory of 5060	4992	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	83
PID 4992 wrote to memory of 5060	4992	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	83
PID 4992 wrote to memory of 5060	4992	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	83
PID 4992 wrote to memory of 5060	4992	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	83
PID 4992 wrote to memory of 5060	4992	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	83
PID 4992 wrote to memory of 5060	4992	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	83
PID 4992 wrote to memory of 5060	4992	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	83
PID 4992 wrote to memory of 5060	4992	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	83
PID 5060 wrote to memory of 5044	5060	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	84
PID 5060 wrote to memory of 5044	5060	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	84
PID 5060 wrote to memory of 5044	5060	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	84
PID 5060 wrote to memory of 5044	5060	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	84
PID 5060 wrote to memory of 4572	5060	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	85
PID 5060 wrote to memory of 4572	5060	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	85
PID 5060 wrote to memory of 4572	5060	JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4992
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_11cb857ecd7fb2227bbbaf4b6b1c6f89.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5060
- - 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 480
      4⤵
      Program crash
      PID:2144
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 488
      4⤵
      Program crash
      PID:1996
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 5044 -ip 5044
1⤵
PID:756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 5044 -ip 5044
1⤵
PID:4928

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

Loading Replay Monitor...

Downloads

memory/5044-8-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/5044-10-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/5060-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/5060-5-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/5060-6-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/5060-7-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/5060-9-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download

Analysis

Sharing