xworm | dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8

General

Target

dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe
Size

506KB
MD5

ce7db8bb0bf0e611dd14dd507b88f0bd
SHA1

edea5e5f4d8ca559210e01a9882e9a2dc99b6ffb
SHA256

dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8
SHA512

4e162916255fc12062fc00dd3d30bfec8b26db7aa5df454e852e35c2f01b168620c3b6eb300812e1e119d93a8963efd36418ab4351a30d9cdb69cca8442e95c6
SSDEEP

12288:IrgGh4koEP2fgULk+R02jr0QQ/sYNVo5W:IOPdTtR0TQQU4Vo5W

Score

10^/10

xworm discovery rat trojan

Malware Config

Extracted

Family

xworm

C2

rency.ydns.eu:59012

wqo9.firewall-gateway.de:59012

Attributes

Install_directory
%AppData%
install_file
MicroSoftOutlook.exe

Signatures

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral1/memory/2984-19-0x0000000000400000-0x0000000000418000-memory.dmp	family_xworm
behavioral1/memory/2984-17-0x0000000000400000-0x0000000000418000-memory.dmp	family_xworm
behavioral1/memory/2984-15-0x0000000000400000-0x0000000000418000-memory.dmp	family_xworm
behavioral1/memory/2984-11-0x0000000000400000-0x0000000000418000-memory.dmp	family_xworm
behavioral1/memory/2984-9-0x0000000000400000-0x0000000000418000-memory.dmp	family_xworm

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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MicroSoftOutlook.lnk	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MicroSoftOutlook.lnk	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe

Loads dropped DLL 1 IoCs

pid	Process
2984	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1968 set thread context of 2984	1968	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe	31

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 2 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	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2984	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2984	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe
Token: SeDebugPrivilege	2984	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2984	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 2984	1968	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe	31
PID 1968 wrote to memory of 2984	1968	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe	31
PID 1968 wrote to memory of 2984	1968	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe	31
PID 1968 wrote to memory of 2984	1968	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe	31
PID 1968 wrote to memory of 2984	1968	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe	31
PID 1968 wrote to memory of 2984	1968	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe	31
PID 1968 wrote to memory of 2984	1968	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe	31
PID 1968 wrote to memory of 2984	1968	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe	31
PID 1968 wrote to memory of 2984	1968	dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe	31

C:\Users\Admin\AppData\Local\Temp\dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe
"C:\Users\Admin\AppData\Local\Temp\dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Users\Admin\AppData\Local\Temp\dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe
  "C:\Users\Admin\AppData\Local\Temp\dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8.exe"
  2⤵
  - Drops startup file
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2984

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

\Users\Admin\AppData\Roaming\MicroSoftOutlook.exe

Filesize
506KB

MD5
ce7db8bb0bf0e611dd14dd507b88f0bd

SHA1
edea5e5f4d8ca559210e01a9882e9a2dc99b6ffb

SHA256
dff135bed1773d2314078ee9c461bdf377ee85e67330233a1e8d65d89071eee8

SHA512
4e162916255fc12062fc00dd3d30bfec8b26db7aa5df454e852e35c2f01b168620c3b6eb300812e1e119d93a8963efd36418ab4351a30d9cdb69cca8442e95c6

Download Submit
memory/1968-0-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/1968-1-0x0000000000A90000-0x0000000000B14000-memory.dmp

Filesize
528KB

Download
memory/1968-2-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/1968-3-0x0000000000920000-0x0000000000938000-memory.dmp

Filesize
96KB

Download
memory/1968-4-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/1968-5-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/1968-6-0x0000000004370000-0x00000000043CC000-memory.dmp

Filesize
368KB

Download
memory/1968-21-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2984-15-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2984-17-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2984-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2984-11-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2984-9-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2984-8-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2984-20-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2984-19-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2984-7-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2984-27-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2984-28-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2984-29-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing