xworm | 1446224da9810c06e7336730dab3811c39c8d1d4b200c4e7d568b1440b432f61

General

Target

VelocitySupportTool (1).exe
Size

250KB
MD5

1904b43012a89c4ec5b3c82c7f7e313e
SHA1

3b0eedb1ba0bff205b9d099dd355091229007d04
SHA256

1446224da9810c06e7336730dab3811c39c8d1d4b200c4e7d568b1440b432f61
SHA512

c37e6bba9776516201c28367dcb541ac108a1def13d72eaf311800710c854a794835b7b92075e3b5d61ff3c500e1446004479065e418e3cb0dfb41963123a06e
SSDEEP

3072:0AgVT/y+i3B0ELNv4TW+gLdLY/rxlfP3JIxlR6d0HoG1Bz65/M6If+3Js+3JFkKf:MT/cCTOLoP3JClR6CIG1xBt25

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Attributes

Install_directory
%port%
install_file
USB.exe
pastebin_url
https://pastebin.com/raw/k7RJ4RZQ

Extracted

Family

xworm

Version

5.0

Mutex

0PPzuWGEdxzyPz40

Attributes

Install_directory
%AppData%
install_file
svchost.exe
pastebin_url
https://pastebin.com/raw/0AT3JnEx

aes.plain

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/files/0x001e00000002abb4-6.dat	family_xworm
behavioral1/files/0x001c00000002ac96-19.dat	family_xworm
behavioral1/memory/564-26-0x00000000003D0000-0x00000000003F0000-memory.dmp	family_xworm
behavioral1/memory/3036-28-0x0000000000AB0000-0x0000000000AC0000-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
3128	powershell.exe
1188	powershell.exe
1696	powershell.exe
4988	powershell.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
564	VelocitySupportTools.exe
3036	VelocityFix.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-1-5-21-580533235-1933962784-2718464258-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	VelocityFix.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
1	pastebin.com
4	pastebin.com

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
1	ip-api.com

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

System Information Discovery
T1082

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
2384	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3128	powershell.exe
3128	powershell.exe
1188	powershell.exe
1188	powershell.exe
1696	powershell.exe
1696	powershell.exe
4988	powershell.exe
4988	powershell.exe
3036	VelocityFix.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	564	VelocitySupportTools.exe
Token: SeDebugPrivilege	3036	VelocityFix.exe
Token: SeDebugPrivilege	3128	powershell.exe
Token: SeDebugPrivilege	1188	powershell.exe
Token: SeDebugPrivilege	1696	powershell.exe
Token: SeDebugPrivilege	4988	powershell.exe
Token: SeDebugPrivilege	3036	VelocityFix.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3036	VelocityFix.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3160 wrote to memory of 564	3160	VelocitySupportTool (1).exe	81
PID 3160 wrote to memory of 564	3160	VelocitySupportTool (1).exe	81
PID 3160 wrote to memory of 3036	3160	VelocitySupportTool (1).exe	82
PID 3160 wrote to memory of 3036	3160	VelocitySupportTool (1).exe	82
PID 3036 wrote to memory of 3128	3036	VelocityFix.exe	88
PID 3036 wrote to memory of 3128	3036	VelocityFix.exe	88
PID 3036 wrote to memory of 1188	3036	VelocityFix.exe	90
PID 3036 wrote to memory of 1188	3036	VelocityFix.exe	90
PID 3036 wrote to memory of 1696	3036	VelocityFix.exe	92
PID 3036 wrote to memory of 1696	3036	VelocityFix.exe	92
PID 3036 wrote to memory of 4988	3036	VelocityFix.exe	94
PID 3036 wrote to memory of 4988	3036	VelocityFix.exe	94
PID 3036 wrote to memory of 2384	3036	VelocityFix.exe	96
PID 3036 wrote to memory of 2384	3036	VelocityFix.exe	96

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\VelocitySupportTool (1).exe
"C:\Users\Admin\AppData\Local\Temp\VelocitySupportTool (1).exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3160
- C:\Users\Admin\AppData\Roaming\VelocitySupportTools.exe
  "C:\Users\Admin\AppData\Roaming\VelocitySupportTools.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:564
- C:\Users\Admin\AppData\Roaming\VelocityFix.exe
  "C:\Users\Admin\AppData\Roaming\VelocityFix.exe"
  2⤵
  - 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:3036
- - 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\VelocityFix.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3128
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'VelocityFix.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1188
- - 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\svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1696
- - 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:4988
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

Filesize
944B

MD5
1a9fa92a4f2e2ec9e244d43a6a4f8fb9

SHA1
9910190edfaccece1dfcc1d92e357772f5dae8f7

SHA256
0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888

SHA512
5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64

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

Filesize
944B

MD5
80b42fe4c6cf64624e6c31e5d7f2d3b3

SHA1
1f93e7dd83b86cb900810b7e3e43797868bf7d93

SHA256
ee20a5b38a6674366efda276dbbf0b43eb54efd282acfc1033042f6b53a80d4d

SHA512
83c1c744c15a8b427a1d3af677ec3bfd0353875a60fe886c41570981e17467ebbb59619b960ca8c5c3ab1430946b0633ea200b7e7d84ab6dca88b60c50055573

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

Filesize
944B

MD5
6f0e62045515b66d0a0105abc22dbf19

SHA1
894d685122f3f3c9a3457df2f0b12b0e851b394c

SHA256
529811e4d3496c559f3bd92cd877b93b719c3ac4834202aa76ab9e16e25f9319

SHA512
f78426df6032ee77f8c463446ab1c6bb4669ef7a2463dead831ec4ff83a07d7dc702d79372d8bcaf4594bf0fb6e11e9f027f3e0325de9b19be5f51b7b80ed54a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_g5mj0g3c.tbe.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\VelocityFix.exe

Filesize
39KB

MD5
53bfc0f8986b70724e4823f47241f6aa

SHA1
62e79122cea2f27e6f093fa484e5aa7795088ccc

SHA256
9286f18acfd1a8277f23da9a1079b571587c9bd5f28dbcff51845b933595426c

SHA512
5abbfbcc2e5cff491f4d213f4b83047f50e1de77d67631d510c7b540965c5f03a7611a0f1e79479d3a05a1e2f05fee6180b47ececc96c78f2e38ee5fa06430f2

Download Submit
C:\Users\Admin\AppData\Roaming\VelocitySupportTools.exe

Filesize
103KB

MD5
3d47fe184f91ceb1bd0d4c213da5ebfa

SHA1
05ca3411a2b89f0c7884024f48b51e7574862992

SHA256
f0879c8017351b9cebbb546ea14f323ddb777cd97e435bb2de904ac28aa8525f

SHA512
1975ed404e30d674806a8209982cf5c81ec7b057178e5597195ca89d79406ddc1edcd25a3e6098e74ac5ce220e9a9975cb2bcbff4d2de8abfa7952c1902ff256

Download Submit
memory/564-26-0x00000000003D0000-0x00000000003F0000-memory.dmp

Filesize
128KB

Download
memory/564-31-0x00007FFEE3EF0000-0x00007FFEE49B2000-memory.dmp

Filesize
10.8MB

Download
memory/564-32-0x00007FFEE3EF0000-0x00007FFEE49B2000-memory.dmp

Filesize
10.8MB

Download
memory/564-29-0x00007FFEE3EF0000-0x00007FFEE49B2000-memory.dmp

Filesize
10.8MB

Download
memory/3036-30-0x00007FFEE3EF0000-0x00007FFEE49B2000-memory.dmp

Filesize
10.8MB

Download
memory/3036-28-0x0000000000AB0000-0x0000000000AC0000-memory.dmp

Filesize
64KB

Download
memory/3128-38-0x0000016131AA0000-0x0000016131AC2000-memory.dmp

Filesize
136KB

Download
memory/3160-0-0x00007FFEE3EF3000-0x00007FFEE3EF5000-memory.dmp

Filesize
8KB

Download
memory/3160-1-0x0000000000010000-0x0000000000054000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads