xworm | 0c610042b3f514a3fbf737244f8a38e7fe5fc5d795471bb73daadd3a0181f5d2

General

Target

thegreatestexploitSCRIPT.exe
Size

1.1MB
MD5

6355193424d5f27e804335671d67b4d2
SHA1

46fb86d88ab38698367394de0cccfd3ba55d419e
SHA256

0c610042b3f514a3fbf737244f8a38e7fe5fc5d795471bb73daadd3a0181f5d2
SHA512

ff0e72dbbc870419f875522b12bfd7bd99d56228d04e517a01e20b0c139f737dd7dfff99145ab6b2c24a51cfef8a4a3b091c058501d746a348f3bcebd607d075
SSDEEP

24576:qXltYB64AmZ4r448WV3RQW6UpPNbwlebQD4PZxIb1p68eclgSDOk:ESMsUPFRplBk4BxYysgAO

Score

10^/10

xworm discovery persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

published-philadelphia.gl.at.ply.gg:8848

localhost:8848

127.0.0.1:8848

Attributes

Install_directory
%AppData%
install_file
xdwdNotepad++.exe

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/memory/380-2-0x0000000000840000-0x0000000000C8A000-memory.dmp	family_xworm
behavioral1/memory/2836-23-0x0000000000AB0000-0x0000000000EFA000-memory.dmp	family_xworm
behavioral1/memory/2836-28-0x0000000000AB0000-0x0000000000EFA000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000\Control Panel\International\Geo\Nation	thegreatestexploitSCRIPT.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xdwdNotepad++.lnk	thegreatestexploitSCRIPT.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xdwdNotepad++.lnk	thegreatestexploitSCRIPT.exe

Executes dropped EXE 1 IoCs

pid	Process
2836	xdwdNotepad++.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xdwdNotepad++ = "C:\\Users\\Admin\\AppData\\Roaming\\xdwdNotepad++.exe"	thegreatestexploitSCRIPT.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
23	ip-api.com

Suspicious use of NtSetInformationThreadHideFromDebugger 11 IoCs

pid	Process
380	thegreatestexploitSCRIPT.exe
380	thegreatestexploitSCRIPT.exe
380	thegreatestexploitSCRIPT.exe
380	thegreatestexploitSCRIPT.exe
380	thegreatestexploitSCRIPT.exe
380	thegreatestexploitSCRIPT.exe
380	thegreatestexploitSCRIPT.exe
380	thegreatestexploitSCRIPT.exe
2836	xdwdNotepad++.exe
2836	xdwdNotepad++.exe
380	thegreatestexploitSCRIPT.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	thegreatestexploitSCRIPT.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xdwdNotepad++.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4616	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
380	thegreatestexploitSCRIPT.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	380	thegreatestexploitSCRIPT.exe
Token: SeDebugPrivilege	380	thegreatestexploitSCRIPT.exe
Token: SeDebugPrivilege	2836	xdwdNotepad++.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
380	thegreatestexploitSCRIPT.exe
380	thegreatestexploitSCRIPT.exe
2836	xdwdNotepad++.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 380 wrote to memory of 4616	380	thegreatestexploitSCRIPT.exe	90
PID 380 wrote to memory of 4616	380	thegreatestexploitSCRIPT.exe	90
PID 380 wrote to memory of 4616	380	thegreatestexploitSCRIPT.exe	90

C:\Users\Admin\AppData\Local\Temp\thegreatestexploitSCRIPT.exe
"C:\Users\Admin\AppData\Local\Temp\thegreatestexploitSCRIPT.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:380
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "xdwdNotepad++" /tr "C:\Users\Admin\AppData\Roaming\xdwdNotepad++.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4616

C:\Users\Admin\AppData\Roaming\xdwdNotepad++.exe
C:\Users\Admin\AppData\Roaming\xdwdNotepad++.exe
1⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\xdwdNotepad++.exe

Filesize
1.1MB

MD5
6355193424d5f27e804335671d67b4d2

SHA1
46fb86d88ab38698367394de0cccfd3ba55d419e

SHA256
0c610042b3f514a3fbf737244f8a38e7fe5fc5d795471bb73daadd3a0181f5d2

SHA512
ff0e72dbbc870419f875522b12bfd7bd99d56228d04e517a01e20b0c139f737dd7dfff99145ab6b2c24a51cfef8a4a3b091c058501d746a348f3bcebd607d075

Download Submit
memory/380-4-0x0000000006720000-0x0000000006786000-memory.dmp

Filesize
408KB

Download
memory/380-16-0x00000000748CE000-0x00000000748CF000-memory.dmp

Filesize
4KB

Download
memory/380-3-0x0000000006680000-0x000000000671C000-memory.dmp

Filesize
624KB

Download
memory/380-0-0x0000000000840000-0x0000000000C8A000-memory.dmp

Filesize
4.3MB

Download
memory/380-5-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/380-10-0x0000000008250000-0x00000000087F4000-memory.dmp

Filesize
5.6MB

Download
memory/380-11-0x0000000008030000-0x00000000080C2000-memory.dmp

Filesize
584KB

Download
memory/380-12-0x0000000007FD0000-0x0000000007FDA000-memory.dmp

Filesize
40KB

Download
memory/380-2-0x0000000000840000-0x0000000000C8A000-memory.dmp

Filesize
4.3MB

Download
memory/380-17-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/380-15-0x0000000000840000-0x0000000000C8A000-memory.dmp

Filesize
4.3MB

Download
memory/380-1-0x00000000748CE000-0x00000000748CF000-memory.dmp

Filesize
4KB

Download
memory/2836-23-0x0000000000AB0000-0x0000000000EFA000-memory.dmp

Filesize
4.3MB

Download
memory/2836-24-0x0000000000AB0000-0x0000000000EFA000-memory.dmp

Filesize
4.3MB

Download
memory/2836-25-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/2836-28-0x0000000000AB0000-0x0000000000EFA000-memory.dmp

Filesize
4.3MB

Download
memory/2836-29-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads