xworm | 710eaf9862498e7ef2b2024783336c69bdb489ddc0b7028af6cc8510d19a733d

General

Target

newtt.pdf.exe
Size

972KB
MD5

0897304e5e056318413b793477142018
SHA1

09299856fae087ac29d25cea697d974858a77796
SHA256

8999a5fbe146e6183a2bffaae420236be218f3de96342e67642af88b2847b480
SHA512

90258358ec5bae8dc594b4521ecae40b17fd0e48749a6991eb0a461db1d47d4e415482ef911b3a15cfd96a4722a0441c3701dd40d4f805cd64dce9098fe8a8d9
SSDEEP

24576:cu6J33O0c+JY5UZ+XC0kGso6FaP3pRbWY:Gu0c++OCvkGs9FavOY

Score

10^/10

Malware Config

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1860-20-0x0000000000560000-0x0000000000570000-memory.dmp	family_xworm

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

Drops startup file 3 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
840	Keily.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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	RegSvcs.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x0007000000023cc5-9.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 840 set thread context of 1860	840	Keily.exe	83

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	newtt.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Keily.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1860	RegSvcs.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
840	Keily.exe
840	Keily.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1860	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
3176	newtt.pdf.exe
3176	newtt.pdf.exe
840	Keily.exe
840	Keily.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
3176	newtt.pdf.exe
3176	newtt.pdf.exe
840	Keily.exe
840	Keily.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1860	RegSvcs.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3176 wrote to memory of 840	3176	newtt.pdf.exe	82
PID 3176 wrote to memory of 840	3176	newtt.pdf.exe	82
PID 3176 wrote to memory of 840	3176	newtt.pdf.exe	82
PID 840 wrote to memory of 1860	840	Keily.exe	83
PID 840 wrote to memory of 1860	840	Keily.exe	83
PID 840 wrote to memory of 1860	840	Keily.exe	83
PID 840 wrote to memory of 1860	840	Keily.exe	83

C:\Users\Admin\AppData\Local\Temp\newtt.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\newtt.pdf.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3176
- C:\Users\Admin\AppData\Local\ageless\Keily.exe
  "C:\Users\Admin\AppData\Local\Temp\newtt.pdf.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:840
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\newtt.pdf.exe"
    3⤵
    - Drops startup file
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

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\Local\Temp\subpredication

Filesize
38KB

MD5
dddff28c705d3422a8b18cbdffd2d1ea

SHA1
4e18309a2caa0c186f1ce2b7cdc483429dde3d84

SHA256
2725d7547d369a8a2154ab86a8feb055596bfe2ccbfc2412c5ceabae2d946c4c

SHA512
d57be806ea43aa0ada997477527904ff30e39bc980e0b557ce0958cd48b88780da68cc2723d66549c5c283a03e8e20aa9580030e09ae255cac7a2b79ae6c2355

Download Submit
C:\Users\Admin\AppData\Local\ageless\Keily.exe

Filesize
972KB

MD5
0897304e5e056318413b793477142018

SHA1
09299856fae087ac29d25cea697d974858a77796

SHA256
8999a5fbe146e6183a2bffaae420236be218f3de96342e67642af88b2847b480

SHA512
90258358ec5bae8dc594b4521ecae40b17fd0e48749a6991eb0a461db1d47d4e415482ef911b3a15cfd96a4722a0441c3701dd40d4f805cd64dce9098fe8a8d9

Download Submit
memory/840-18-0x00000000011E0000-0x00000000015E0000-memory.dmp

Filesize
4.0MB

Download
memory/1860-22-0x0000000004BC0000-0x0000000004C5C000-memory.dmp

Filesize
624KB

Download
memory/1860-20-0x0000000000560000-0x0000000000570000-memory.dmp

Filesize
64KB

Download
memory/1860-21-0x000000007505E000-0x000000007505F000-memory.dmp

Filesize
4KB

Download
memory/1860-27-0x0000000005810000-0x0000000005DB4000-memory.dmp

Filesize
5.6MB

Download
memory/1860-28-0x0000000005690000-0x0000000005722000-memory.dmp

Filesize
584KB

Download
memory/1860-29-0x0000000005660000-0x000000000566A000-memory.dmp

Filesize
40KB

Download
memory/1860-30-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/1860-31-0x000000007505E000-0x000000007505F000-memory.dmp

Filesize
4KB

Download
memory/1860-32-0x00000000057A0000-0x0000000005806000-memory.dmp

Filesize
408KB

Download
memory/1860-33-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/3176-6-0x0000000001770000-0x0000000001B70000-memory.dmp

Filesize
4.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads