xworm | 1bbed9ce42fa9fc59da66af162fb7b5b13bfba8a197b8b81c32d780e3e6dab83

Analysis

max time kernel
136s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-01-2025 18:00

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General

Target

Uzi - Virtualizer.exe
Size

1.5MB
MD5

19e10caeb8e008c60153b2b2a6702da1
SHA1

0919cc85e5a5a947ca6f335e6bc22f945f210e40
SHA256

1bbed9ce42fa9fc59da66af162fb7b5b13bfba8a197b8b81c32d780e3e6dab83
SHA512

c6c2eff95674ebb581dfedb383dbd551e5bb5db8e57302e3dd6ec8c122e73266d4cc779576dda57c17cbea87ead50039e418493788bcb3548a0d4834e6058616
SSDEEP

49152:ATg85+uqK7elPJFjvPmp8ke3oZg9yClEWpSCFLHypui:Ur5+lq6/jWp8ke3oZgYudLHy

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

road-stars.gl.at.ply.gg:55299

Attributes

Install_directory
%Userprofile%
install_file
svchost.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023b72-6.dat	family_xworm
behavioral2/memory/3400-19-0x00000000008C0000-0x00000000008D8000-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
3768	powershell.exe
1000	powershell.exe
1876	powershell.exe
552	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	Keyauth-Host.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	Uzi - Virtualizer.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 4 IoCs

pid	Process
3400	Keyauth-Host.exe
4496	Uzivert Private.exe
4076	svchost.exe
5068	svchost.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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\svchost.exe"	Keyauth-Host.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
15	ip-api.com

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

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName	taskmgr.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4820	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
552	powershell.exe
552	powershell.exe
3768	powershell.exe
3768	powershell.exe
1000	powershell.exe
1000	powershell.exe
1876	powershell.exe
1876	powershell.exe
3400	Keyauth-Host.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe

Suspicious use of AdjustPrivilegeToken 13 IoCs

description	pid	Process
Token: SeDebugPrivilege	3400	Keyauth-Host.exe
Token: SeDebugPrivilege	552	powershell.exe
Token: SeDebugPrivilege	3768	powershell.exe
Token: SeDebugPrivilege	1000	powershell.exe
Token: SeDebugPrivilege	1876	powershell.exe
Token: SeDebugPrivilege	3400	Keyauth-Host.exe
Token: SeDebugPrivilege	2308	taskmgr.exe
Token: SeSystemProfilePrivilege	2308	taskmgr.exe
Token: SeCreateGlobalPrivilege	2308	taskmgr.exe
Token: 33	2308	taskmgr.exe
Token: SeIncBasePriorityPrivilege	2308	taskmgr.exe
Token: SeDebugPrivilege	4076	svchost.exe
Token: SeDebugPrivilege	5068	svchost.exe

Suspicious use of FindShellTrayWindow 36 IoCs

pid	Process
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe

Suspicious use of SendNotifyMessage 36 IoCs

pid	Process
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe
2308	taskmgr.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3400	Keyauth-Host.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1528 wrote to memory of 3400	1528	Uzi - Virtualizer.exe	82
PID 1528 wrote to memory of 3400	1528	Uzi - Virtualizer.exe	82
PID 1528 wrote to memory of 4496	1528	Uzi - Virtualizer.exe	83
PID 1528 wrote to memory of 4496	1528	Uzi - Virtualizer.exe	83
PID 3400 wrote to memory of 552	3400	Keyauth-Host.exe	86
PID 3400 wrote to memory of 552	3400	Keyauth-Host.exe	86
PID 3400 wrote to memory of 3768	3400	Keyauth-Host.exe	88
PID 3400 wrote to memory of 3768	3400	Keyauth-Host.exe	88
PID 3400 wrote to memory of 1000	3400	Keyauth-Host.exe	90
PID 3400 wrote to memory of 1000	3400	Keyauth-Host.exe	90
PID 3400 wrote to memory of 1876	3400	Keyauth-Host.exe	92
PID 3400 wrote to memory of 1876	3400	Keyauth-Host.exe	92
PID 3400 wrote to memory of 4820	3400	Keyauth-Host.exe	94
PID 3400 wrote to memory of 4820	3400	Keyauth-Host.exe	94

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\Uzi - Virtualizer.exe
"C:\Users\Admin\AppData\Local\Temp\Uzi - Virtualizer.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1528
- C:\Users\Admin\AppData\Local\Temp\Keyauth-Host.exe
  "C:\Users\Admin\AppData\Local\Temp\Keyauth-Host.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3400
- - 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\Keyauth-Host.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:552
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Keyauth-Host.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3768
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1000
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1876
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\svchost.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4820
- C:\Users\Admin\AppData\Local\Temp\Uzivert Private.exe
  "C:\Users\Admin\AppData\Local\Temp\Uzivert Private.exe"
  2⤵
  - Executes dropped EXE
  PID:4496

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2308

C:\Users\Admin\svchost.exe
C:\Users\Admin\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4076

C:\Users\Admin\svchost.exe
C:\Users\Admin\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

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\CLR_v4.0\UsageLogs\svchost.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

Filesize
944B

MD5
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

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

Filesize
944B

MD5
eb033be02578f9635ec47bdc1de5c3fb

SHA1
ec356bc87381354a06baa9c30e8c3ac3d30e0f6f

SHA256
bd827af3192bf83c75a32e51ed2de83bd3b90d6b99350721a189a57cec15d063

SHA512
4d8778503646f7016df73ff9d204760f4fe4d2b24157920ac3e5651653373975b2f2d229530143059f11b16c42822ad7963e628ad6066022ee712c17d90595ed

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

Filesize
944B

MD5
10890cda4b6eab618e926c4118ab0647

SHA1
1e1d63b73a0e6c7575f458b3c7917a9ce5ba776d

SHA256
00f8a035324d39bd62e6dee5e1b480069015471c487ebee4479e6990ea9ddb14

SHA512
a2ee84006c24a36f25e0bca0772430d64e3791f233da916aecdeae6712763e77d55bbbd00dc8f6b2b3887f3c26ab3980b96c5f46cc823e81e28abbbc5fc78221

Download Submit
C:\Users\Admin\AppData\Local\Temp\Keyauth-Host.exe

Filesize
74KB

MD5
682f9a9f1a1c950efcc9a37adcddeb8a

SHA1
eab7b22299d7f4b838dd4b57862491d6e728ee22

SHA256
7fd8250dc06501a85472d75de54bc63bb98cfbca6e7cf560cae046bee0685a48

SHA512
471e5a4c668375da48525fadf8cb9cd3eff9fb4756d48c319ad5b5f1dcf88960630fc576cc2b5297ab3039b52a3f9c4239de19ef3e49026cf7c20d21cc0424a4

Download Submit
C:\Users\Admin\AppData\Local\Temp\Uzivert Private.exe

Filesize
3.0MB

MD5
e623c22e7cacd3d1f3e3a1c1979eff93

SHA1
dcab81a1bc9d0795789390f3584ea681c10e9a4f

SHA256
ddcf28e8153abbc3c5a2ccbf0928a5d83fe5b797cfa3b056723c967fa44ec4be

SHA512
90cd113467568864f7059305282bccf02f0afba2289ad315e8441216771718966bb604e5dd0e84a99af1ab9513479fa0d414a9190992c1869e1e90bfef940831

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xnxumnbw.fjq.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk

Filesize
780B

MD5
62bff6595dd414d8ddb2701e4584a95e

SHA1
915cd9a54d021eef5a539e72d955b22c75d487b3

SHA256
ca04203317cee0b19241eddeeb65daa852b06539de670d3ec33b37eab6f80fc7

SHA512
11bfa01ded2caf6716cee0a79e5d6b9ee67064c0fc63450fe8edf77df48c5f7cf897f8618bbaa9f8adc35fb564d2c9153a083ab69138e7ce5ad59b0a6ebfb68a

Download Submit
memory/552-36-0x0000015572C40000-0x0000015572C62000-memory.dmp

Filesize
136KB

Download
memory/1528-25-0x00007FF9862B0000-0x00007FF986D71000-memory.dmp

Filesize
10.8MB

Download
memory/1528-10-0x00007FF9862B0000-0x00007FF986D71000-memory.dmp

Filesize
10.8MB

Download
memory/1528-0-0x00007FF9862B3000-0x00007FF9862B5000-memory.dmp

Filesize
8KB

Download
memory/1528-1-0x00000000003C0000-0x0000000000550000-memory.dmp

Filesize
1.6MB

Download
memory/2308-88-0x000002833D030000-0x000002833D031000-memory.dmp

Filesize
4KB

Download
memory/2308-90-0x000002833D030000-0x000002833D031000-memory.dmp

Filesize
4KB

Download
memory/2308-85-0x000002833D030000-0x000002833D031000-memory.dmp

Filesize
4KB

Download
memory/2308-81-0x000002833D030000-0x000002833D031000-memory.dmp

Filesize
4KB

Download
memory/2308-80-0x000002833D030000-0x000002833D031000-memory.dmp

Filesize
4KB

Download
memory/2308-79-0x000002833D030000-0x000002833D031000-memory.dmp

Filesize
4KB

Download
memory/2308-91-0x000002833D030000-0x000002833D031000-memory.dmp

Filesize
4KB

Download
memory/2308-86-0x000002833D030000-0x000002833D031000-memory.dmp

Filesize
4KB

Download
memory/2308-89-0x000002833D030000-0x000002833D031000-memory.dmp

Filesize
4KB

Download
memory/2308-87-0x000002833D030000-0x000002833D031000-memory.dmp

Filesize
4KB

Download
memory/3400-26-0x00007FF9862B0000-0x00007FF986D71000-memory.dmp

Filesize
10.8MB

Download
memory/3400-77-0x00007FF9862B0000-0x00007FF986D71000-memory.dmp

Filesize
10.8MB

Download
memory/3400-78-0x00007FF9862B0000-0x00007FF986D71000-memory.dmp

Filesize
10.8MB

Download
memory/3400-21-0x00007FF9862B0000-0x00007FF986D71000-memory.dmp

Filesize
10.8MB

Download
memory/3400-19-0x00000000008C0000-0x00000000008D8000-memory.dmp

Filesize
96KB

Download