xworm | 1c4c8d4b80aadd685bf7344b326116a30265c0c1ca7cbaf40f3719b825a2740a

General

Target

ez.exe
Size

46.0MB
MD5

c09e00509d7efa941fd97f50ee999feb
SHA1

117361c0c4d9aee118c7cfa4b44af9c561f2d2f9
SHA256

1c4c8d4b80aadd685bf7344b326116a30265c0c1ca7cbaf40f3719b825a2740a
SHA512

3a4e50e44deb484d296579d5d40e9379cef1a4f62869dd2a753244849019c77837defc4bf3349b68b5f9b61b30ea29f4d5f7d087c0d1b321e06e5d93beb69ca1
SSDEEP

393216:9YXEXR3uzMK0GWSFqlV3lYWmnHGm8mtGDfdJlU8Jq8tA9KxFxCfV:9YXEXhuzMmF26WmnHGrO1

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

trip-thesaurus.gl.at.ply.gg:16715

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2216-1-0x0000000000130000-0x000000000014A000-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
3208	powershell.exe
4520	powershell.exe
5012	powershell.exe
1924	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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	ez.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
4532	SecurityHealthSystray
2920	SecurityHealthSystray

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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SecurityHealthSystray = "C:\\Users\\Admin\\AppData\\Roaming\\SecurityHealthSystray"	ez.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

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
2896	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2216	ez.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1924	powershell.exe
1924	powershell.exe
3208	powershell.exe
3208	powershell.exe
4520	powershell.exe
4520	powershell.exe
5012	powershell.exe
5012	powershell.exe
2216	ez.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2216	ez.exe
Token: SeDebugPrivilege	1924	powershell.exe
Token: SeDebugPrivilege	3208	powershell.exe
Token: SeDebugPrivilege	4520	powershell.exe
Token: SeDebugPrivilege	5012	powershell.exe
Token: SeDebugPrivilege	2216	ez.exe
Token: SeDebugPrivilege	4532	SecurityHealthSystray
Token: SeDebugPrivilege	2920	SecurityHealthSystray

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2216	ez.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2216 wrote to memory of 1924	2216	ez.exe	84
PID 2216 wrote to memory of 1924	2216	ez.exe	84
PID 2216 wrote to memory of 3208	2216	ez.exe	86
PID 2216 wrote to memory of 3208	2216	ez.exe	86
PID 2216 wrote to memory of 4520	2216	ez.exe	88
PID 2216 wrote to memory of 4520	2216	ez.exe	88
PID 2216 wrote to memory of 5012	2216	ez.exe	90
PID 2216 wrote to memory of 5012	2216	ez.exe	90
PID 2216 wrote to memory of 2896	2216	ez.exe	92
PID 2216 wrote to memory of 2896	2216	ez.exe	92

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\ez.exe
"C:\Users\Admin\AppData\Local\Temp\ez.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2216
- 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\ez.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1924
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'ez.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3208
- 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\SecurityHealthSystray'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4520
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SecurityHealthSystray'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5012
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "SecurityHealthSystray" /tr "C:\Users\Admin\AppData\Roaming\SecurityHealthSystray"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2896

C:\Users\Admin\AppData\Roaming\SecurityHealthSystray
C:\Users\Admin\AppData\Roaming\SecurityHealthSystray
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4532

C:\Users\Admin\AppData\Roaming\SecurityHealthSystray
C:\Users\Admin\AppData\Roaming\SecurityHealthSystray
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2920

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

2

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\SecurityHealthSystray.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
944B

MD5
60945d1a2e48da37d4ce8d9c56b6845a

SHA1
83e80a6acbeb44b68b0da00b139471f428a9d6c1

SHA256
314b91c00997034d6e015f40230d90ebbf57de5dc938b62c1a214d591793dbe3

SHA512
5d068f1d6443e26ae3cad1c80f969e50e5860967b314153c4d3b6efd1cfa39f0907c6427bec7fa43db079f258b6357e4e9a1b0b1a36b1481d2049ea0e67909ed

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

Filesize
944B

MD5
b4b6d4cc52b5a3a71149b1f33d94d5de

SHA1
97d3dbdd24919eab70e3b14c68797cefc07e90dd

SHA256
da8c02ce00d5b1e6d4c3667465c7bbc14d7cd5227eb634f3d9690afd488267fe

SHA512
fc894f03709b83df7d2fca2779e1e60549078b67bcdbff0b61c8e5a802982210ae971309c1f92577573299288963ab5c95c6b38cbaedf53dc6062812c57a97af

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_55ntlofs.phd.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\SecurityHealthSystray

Filesize
46.0MB

MD5
c09e00509d7efa941fd97f50ee999feb

SHA1
117361c0c4d9aee118c7cfa4b44af9c561f2d2f9

SHA256
1c4c8d4b80aadd685bf7344b326116a30265c0c1ca7cbaf40f3719b825a2740a

SHA512
3a4e50e44deb484d296579d5d40e9379cef1a4f62869dd2a753244849019c77837defc4bf3349b68b5f9b61b30ea29f4d5f7d087c0d1b321e06e5d93beb69ca1

Download Submit
memory/1924-8-0x00007FFDD3500000-0x00007FFDD3FC1000-memory.dmp

Filesize
10.8MB

Download
memory/1924-18-0x00007FFDD3500000-0x00007FFDD3FC1000-memory.dmp

Filesize
10.8MB

Download
memory/1924-15-0x00007FFDD3500000-0x00007FFDD3FC1000-memory.dmp

Filesize
10.8MB

Download
memory/1924-13-0x0000021675800000-0x0000021675822000-memory.dmp

Filesize
136KB

Download
memory/1924-14-0x00007FFDD3500000-0x00007FFDD3FC1000-memory.dmp

Filesize
10.8MB

Download
memory/2216-0-0x00007FFDD3503000-0x00007FFDD3505000-memory.dmp

Filesize
8KB

Download
memory/2216-53-0x00007FFDD3503000-0x00007FFDD3505000-memory.dmp

Filesize
8KB

Download
memory/2216-57-0x00007FFDD3500000-0x00007FFDD3FC1000-memory.dmp

Filesize
10.8MB

Download
memory/2216-2-0x00007FFDD3500000-0x00007FFDD3FC1000-memory.dmp

Filesize
10.8MB

Download
memory/2216-1-0x0000000000130000-0x000000000014A000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads