xtremerat | 3592e6d24f86015afec4b94e9d7b037a642a71b11fd27c0083aef8d22257b5f2

General

Target

JaffaCakes118_6811fb576444744493588618ef27c831.exe
Size

111KB
MD5

6811fb576444744493588618ef27c831
SHA1

aaf907d26f14bd8f5cae499c808ea1dc66d57dcc
SHA256

3592e6d24f86015afec4b94e9d7b037a642a71b11fd27c0083aef8d22257b5f2
SHA512

cce853dc43e1c96d1a0be968b300dec1a23301c34afc5661e6e08cf8f3ab4527d985cff7fbb7945f107127e764908e31a5a85b68253209bf779fa951de151e2b
SSDEEP

3072:DdvVjqqdqqqLJqMPaZ0JKYf5hPSMNWrw7JfPZF7e+U9Fn:DdvVjqqdqqqLJqkdhPYrorK+U

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

mimmo86.no-ip.org

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/1804-24-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4444-26-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1804-27-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4444-28-0x0000000010000000-0x000000001004D000-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 1164 set thread context of 1804	1164	JaffaCakes118_6811fb576444744493588618ef27c831.exe	84

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1804-20-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1804-22-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1804-25-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1804-24-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4444-26-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1804-27-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4444-28-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64	JaffaCakes118_6811fb576444744493588618ef27c831.exe

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
3688	4444	WerFault.exe	86
1844	4444	WerFault.exe	86

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_6811fb576444744493588618ef27c831.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6811fb576444744493588618ef27c831.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1164	JaffaCakes118_6811fb576444744493588618ef27c831.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1164 wrote to memory of 1804	1164	JaffaCakes118_6811fb576444744493588618ef27c831.exe	84
PID 1164 wrote to memory of 1804	1164	JaffaCakes118_6811fb576444744493588618ef27c831.exe	84
PID 1164 wrote to memory of 1804	1164	JaffaCakes118_6811fb576444744493588618ef27c831.exe	84
PID 1164 wrote to memory of 1804	1164	JaffaCakes118_6811fb576444744493588618ef27c831.exe	84
PID 1164 wrote to memory of 1804	1164	JaffaCakes118_6811fb576444744493588618ef27c831.exe	84
PID 1164 wrote to memory of 1804	1164	JaffaCakes118_6811fb576444744493588618ef27c831.exe	84
PID 1164 wrote to memory of 1804	1164	JaffaCakes118_6811fb576444744493588618ef27c831.exe	84
PID 1164 wrote to memory of 1804	1164	JaffaCakes118_6811fb576444744493588618ef27c831.exe	84
PID 1804 wrote to memory of 4444	1804	JaffaCakes118_6811fb576444744493588618ef27c831.exe	86
PID 1804 wrote to memory of 4444	1804	JaffaCakes118_6811fb576444744493588618ef27c831.exe	86
PID 1804 wrote to memory of 4444	1804	JaffaCakes118_6811fb576444744493588618ef27c831.exe	86
PID 1804 wrote to memory of 4444	1804	JaffaCakes118_6811fb576444744493588618ef27c831.exe	86
PID 1804 wrote to memory of 2116	1804	JaffaCakes118_6811fb576444744493588618ef27c831.exe	87
PID 1804 wrote to memory of 2116	1804	JaffaCakes118_6811fb576444744493588618ef27c831.exe	87
PID 1804 wrote to memory of 2116	1804	JaffaCakes118_6811fb576444744493588618ef27c831.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6811fb576444744493588618ef27c831.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6811fb576444744493588618ef27c831.exe"
1⤵
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1164
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6811fb576444744493588618ef27c831.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6811fb576444744493588618ef27c831.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1804
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4444
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4444 -s 480
      4⤵
      Program crash
      PID:3688
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4444 -s 492
      4⤵
      Program crash
      PID:1844
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 4444 -ip 4444
1⤵
PID:1232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4444 -ip 4444
1⤵
PID:3036

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/1164-17-0x0000000002880000-0x0000000002890000-memory.dmp

Filesize
64KB

Download
memory/1164-5-0x00000000005D0000-0x00000000005E0000-memory.dmp

Filesize
64KB

Download
memory/1164-13-0x0000000002840000-0x0000000002850000-memory.dmp

Filesize
64KB

Download
memory/1164-8-0x0000000000610000-0x0000000000620000-memory.dmp

Filesize
64KB

Download
memory/1164-11-0x0000000002820000-0x0000000002830000-memory.dmp

Filesize
64KB

Download
memory/1164-10-0x0000000000630000-0x0000000000640000-memory.dmp

Filesize
64KB

Download
memory/1164-16-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/1164-0-0x0000000000400000-0x000000000041C600-memory.dmp

Filesize
113KB

Download
memory/1164-15-0x0000000002860000-0x0000000002870000-memory.dmp

Filesize
64KB

Download
memory/1164-14-0x0000000002850000-0x0000000002860000-memory.dmp

Filesize
64KB

Download
memory/1164-12-0x0000000002830000-0x0000000002840000-memory.dmp

Filesize
64KB

Download
memory/1164-9-0x0000000000620000-0x0000000000630000-memory.dmp

Filesize
64KB

Download
memory/1164-4-0x00000000005C0000-0x00000000005D0000-memory.dmp

Filesize
64KB

Download
memory/1164-2-0x0000000000540000-0x0000000000550000-memory.dmp

Filesize
64KB

Download
memory/1164-1-0x0000000000530000-0x0000000000540000-memory.dmp

Filesize
64KB

Download
memory/1164-3-0x00000000005B0000-0x00000000005C0000-memory.dmp

Filesize
64KB

Download
memory/1164-23-0x0000000000400000-0x000000000041C600-memory.dmp

Filesize
113KB

Download
memory/1164-7-0x0000000000600000-0x0000000000610000-memory.dmp

Filesize
64KB

Download
memory/1164-6-0x00000000005F0000-0x0000000000600000-memory.dmp

Filesize
64KB

Download
memory/1804-22-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1804-25-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1804-24-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1804-27-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1804-20-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4444-28-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4444-26-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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