xtremerat | 1ea484be3ea61982df30782c4c436a16457ac833ffe3cc3585c452a6118a8d0e

General

Target

JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe
Size

525KB
MD5

ebc4ec87b3860a46a0b72ca06a593548
SHA1

e9b040c86a47fe8d46e3946de9f82996e5a9b7ce
SHA256

1ea484be3ea61982df30782c4c436a16457ac833ffe3cc3585c452a6118a8d0e
SHA512

3240dfceac27f5f13d151a766e277a1dc9481c68611f69e6119efd0266b11f213ba30ced289958baa5cc7bba6a72848f9c8fe30ed6645cacbad573c9749dd467
SSDEEP

12288:GeuHRzxyzTfDFiWmI9SHD4/rKphvwfF/L9fYBr0pF87:F8RVynVCHD4zKphod/LSrf

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

aldkffd.zapto.org

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/384-25-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/3652-27-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/3652-30-0x0000000010000000-0x000000001004B000-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

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/4304-22-0x0000000000400000-0x00000000004CC000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4304 set thread context of 384	4304	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe	83

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/384-18-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/384-21-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/384-25-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/4304-22-0x0000000000400000-0x00000000004CC000-memory.dmp	upx
behavioral2/memory/3652-27-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/3652-30-0x0000000010000000-0x000000001004B000-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
2952	3652	WerFault.exe	84
4332	3652	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_ebc4ec87b3860a46a0b72ca06a593548.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4304	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe
4304	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe
4304	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4304	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe
4304	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe
4304	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4304 wrote to memory of 384	4304	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe	83
PID 4304 wrote to memory of 384	4304	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe	83
PID 4304 wrote to memory of 384	4304	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe	83
PID 4304 wrote to memory of 384	4304	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe	83
PID 4304 wrote to memory of 384	4304	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe	83
PID 4304 wrote to memory of 384	4304	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe	83
PID 4304 wrote to memory of 384	4304	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe	83
PID 4304 wrote to memory of 384	4304	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe	83
PID 384 wrote to memory of 3652	384	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe	84
PID 384 wrote to memory of 3652	384	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe	84
PID 384 wrote to memory of 3652	384	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe	84
PID 384 wrote to memory of 3652	384	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe	84
PID 384 wrote to memory of 4892	384	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe	85
PID 384 wrote to memory of 4892	384	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe	85
PID 384 wrote to memory of 4892	384	JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4304
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ebc4ec87b3860a46a0b72ca06a593548.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:384
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3652
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 480
      4⤵
      Program crash
      PID:2952
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 488
      4⤵
      Program crash
      PID:4332
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3652 -ip 3652
1⤵
PID:4960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3652 -ip 3652
1⤵
PID:3216

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

C:\Users\Admin\AppData\Local\Temp\aut9CFB.tmp

Filesize
31KB

MD5
963c7a7d7918ee3b9fccde8e0f13029a

SHA1
5c59aa66b251513ad724b439baff01b1c70b0efb

SHA256
2ba65620123bc0f66ec0c72abdb872d36c4edfb0d51859586db133e03db7a265

SHA512
82a39afc7fdadc58892b1862519f5ee5062d2d7721c11f22d8124b9014f69da66aa93e66e87f07be72ac9db6c19efb51e11adbba6316b1c25f8405cd47c749f1

Download Submit
memory/384-29-0x0000000075910000-0x0000000075A00000-memory.dmp

Filesize
960KB

Download
memory/384-25-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/384-26-0x0000000075910000-0x0000000075A00000-memory.dmp

Filesize
960KB

Download
memory/384-21-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/384-18-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/3652-31-0x0000000075910000-0x0000000075A00000-memory.dmp

Filesize
960KB

Download
memory/3652-30-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/3652-28-0x0000000075910000-0x0000000075A00000-memory.dmp

Filesize
960KB

Download
memory/3652-27-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/4304-4-0x0000000077822000-0x0000000077823000-memory.dmp

Filesize
4KB

Download
memory/4304-24-0x0000000075910000-0x0000000075A00000-memory.dmp

Filesize
960KB

Download
memory/4304-10-0x0000000075910000-0x0000000075A00000-memory.dmp

Filesize
960KB

Download
memory/4304-8-0x0000000075910000-0x0000000075A00000-memory.dmp

Filesize
960KB

Download
memory/4304-23-0x00000000009B0000-0x00000000009FE000-memory.dmp

Filesize
312KB

Download
memory/4304-3-0x0000000000A70000-0x0000000000A80000-memory.dmp

Filesize
64KB

Download
memory/4304-1-0x00000000009B0000-0x00000000009FE000-memory.dmp

Filesize
312KB

Download
memory/4304-9-0x0000000075910000-0x0000000075A00000-memory.dmp

Filesize
960KB

Download
memory/4304-22-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4304-5-0x0000000003470000-0x0000000003480000-memory.dmp

Filesize
64KB

Download
memory/4304-7-0x0000000075910000-0x0000000075A00000-memory.dmp

Filesize
960KB

Download
memory/4304-6-0x0000000075930000-0x0000000075931000-memory.dmp

Filesize
4KB

Download
memory/4304-2-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4304-0-0x0000000000980000-0x0000000000981000-memory.dmp

Filesize
4KB

Download

Analysis

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