xworm | ed83e0889ed251a46197ea2877dc74957a67551f746d64cda4dbd870b883db1d

General

Target

N2COB_Excellent2.0.exe
Size

69KB
MD5

5d37e31fe1b07076f070f06d7a2cf9fb
SHA1

b0731819832701056f1799ee1f52a222fcb93b65
SHA256

ed83e0889ed251a46197ea2877dc74957a67551f746d64cda4dbd870b883db1d
SHA512

fc7313180542fa84e0e3727f8692a42c4e2e2e10586dc7bd918dbe40450cb525e1b1e3e2043a745da7d5bee60310edcf817a889de38eeae4f815588083dd2d5d
SSDEEP

1536:EZjRQtLD7nNd0K1Pz3NmG6kF+b1Wm7bc6JOyTjfhk:GWLD7TPb4G6kF+b1Z7jOyXfhk

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

develop-transition.gl.at.ply.gg:40000

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3144-1-0x0000000000010000-0x0000000000028000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2392	powershell.exe
2628	powershell.exe
2828	powershell.exe
4840	powershell.exe

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-1-5-21-2593460650-190333679-3676257533-1000\Control Panel\International\Geo\Nation	N2COB_Excellent2.0.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	N2COB_Excellent2.0.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	N2COB_Excellent2.0.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-1-5-21-2593460650-190333679-3676257533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	N2COB_Excellent2.0.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2392	powershell.exe
2392	powershell.exe
2392	powershell.exe
2628	powershell.exe
2628	powershell.exe
2628	powershell.exe
2828	powershell.exe
2828	powershell.exe
2828	powershell.exe
4840	powershell.exe
4840	powershell.exe
3144	N2COB_Excellent2.0.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3144	N2COB_Excellent2.0.exe
Token: SeDebugPrivilege	2392	powershell.exe
Token: SeDebugPrivilege	2628	powershell.exe
Token: SeDebugPrivilege	2828	powershell.exe
Token: SeDebugPrivilege	4840	powershell.exe
Token: SeDebugPrivilege	3144	N2COB_Excellent2.0.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3144	N2COB_Excellent2.0.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3144 wrote to memory of 2392	3144	N2COB_Excellent2.0.exe	95
PID 3144 wrote to memory of 2392	3144	N2COB_Excellent2.0.exe	95
PID 3144 wrote to memory of 2628	3144	N2COB_Excellent2.0.exe	97
PID 3144 wrote to memory of 2628	3144	N2COB_Excellent2.0.exe	97
PID 3144 wrote to memory of 2828	3144	N2COB_Excellent2.0.exe	99
PID 3144 wrote to memory of 2828	3144	N2COB_Excellent2.0.exe	99
PID 3144 wrote to memory of 4840	3144	N2COB_Excellent2.0.exe	101
PID 3144 wrote to memory of 4840	3144	N2COB_Excellent2.0.exe	101

C:\Users\Admin\AppData\Local\Temp\N2COB_Excellent2.0.exe
"C:\Users\Admin\AppData\Local\Temp\N2COB_Excellent2.0.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3144
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\N2COB_Excellent2.0.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2392
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'N2COB_Excellent2.0.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2628
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2828
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

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

Query Registry

1

T1012

System Information Discovery

2

T1082

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
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

Filesize
944B

MD5
28a4b014470142f34fdbbaf0bc8d9317

SHA1
bf6487c7127d9e396b343dbd652c3d96902e4fc4

SHA256
e3e552ac32773c5511eb60a159c709f475e8e066b9ffeef6d8f32df9899ef9b2

SHA512
08b7d6fd067fe3eda7135b4fdf57972eebd7b6f0436036001fbc06a4874555367ea896c0d76908e78263795224ea89ba1adb65a2870a3527e377c8acac9664e6

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

Filesize
944B

MD5
9c740b7699e2363ac4ecdf496520ca35

SHA1
aa8691a8c56500d82c5fc8c35209bc6fe50ab1d9

SHA256
be96c91b62ba9ba7072ab89e66543328c9e4395150f9dbe8067332d94a3ecc61

SHA512
8885683f96353582eb871209e766e7eba1a72a2837ce27ea298b7b5b169621d1fa3fce25346b6bfd258b52642644234da9559d4e765a2023a5a5fc1f544cc7af

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_f4l1vbdf.v04.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2392-11-0x0000029CF8030000-0x0000029CF8052000-memory.dmp

Filesize
136KB

Download
memory/2392-14-0x00007FFD17620000-0x00007FFD180E1000-memory.dmp

Filesize
10.8MB

Download
memory/2392-17-0x00007FFD17620000-0x00007FFD180E1000-memory.dmp

Filesize
10.8MB

Download
memory/2392-13-0x00007FFD17620000-0x00007FFD180E1000-memory.dmp

Filesize
10.8MB

Download
memory/2392-12-0x00007FFD17620000-0x00007FFD180E1000-memory.dmp

Filesize
10.8MB

Download
memory/3144-0-0x00007FFD17623000-0x00007FFD17625000-memory.dmp

Filesize
8KB

Download
memory/3144-1-0x0000000000010000-0x0000000000028000-memory.dmp

Filesize
96KB

Download
memory/3144-56-0x00007FFD17620000-0x00007FFD180E1000-memory.dmp

Filesize
10.8MB

Download
memory/3144-57-0x00007FFD17620000-0x00007FFD180E1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads