xworm | 3e6f0de70c94df15b3aecb8ce4370e26b62fa38a24bf3710d0d9f0a28b4da656

General

Target

BoostFPS.exe
Size

98KB
MD5

20f5290def51514fefaed2b744ed961c
SHA1

546f5c611c1d35c5104e2792c76934746f637987
SHA256

3e6f0de70c94df15b3aecb8ce4370e26b62fa38a24bf3710d0d9f0a28b4da656
SHA512

578c4cc3b0375587d13f4b6f28d063322aa4df1dc3a439bc2f22da57475d191b78f7cc6590483ba4462af5a70d7aa73fb6784ae527e46f8e64cb31b3274ef3e2
SSDEEP

3072:gZtcSVYnM7ByozguHogUDqGB5xY7iBCYs9:gXFyaByoUuInqs0

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

45.141.27.248:7777

Attributes

Install_directory
%AppData%
install_file
svchost.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023c62-9.dat	family_xworm
behavioral2/memory/2952-17-0x0000000000390000-0x00000000003AA000-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
2912	powershell.exe
2036	powershell.exe
2796	powershell.exe
3788	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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	BoostFPS.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	svchost.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	svchost.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
2952	svchost.exe
3936	svchost.exe
2688	svchost.exe
4336	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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	svchost.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
4252	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2796	powershell.exe
2796	powershell.exe
3788	powershell.exe
3788	powershell.exe
2912	powershell.exe
2912	powershell.exe
2036	powershell.exe
2036	powershell.exe
2952	svchost.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2952	svchost.exe
Token: SeDebugPrivilege	2796	powershell.exe
Token: SeDebugPrivilege	3788	powershell.exe
Token: SeDebugPrivilege	2912	powershell.exe
Token: SeDebugPrivilege	2036	powershell.exe
Token: SeDebugPrivilege	2952	svchost.exe
Token: SeDebugPrivilege	3936	svchost.exe
Token: SeDebugPrivilege	2688	svchost.exe
Token: SeDebugPrivilege	4336	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2952	svchost.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 3532	2280	BoostFPS.exe	84
PID 2280 wrote to memory of 3532	2280	BoostFPS.exe	84
PID 2280 wrote to memory of 2952	2280	BoostFPS.exe	86
PID 2280 wrote to memory of 2952	2280	BoostFPS.exe	86
PID 3532 wrote to memory of 672	3532	cmd.exe	87
PID 3532 wrote to memory of 672	3532	cmd.exe	87
PID 3532 wrote to memory of 2788	3532	cmd.exe	88
PID 3532 wrote to memory of 2788	3532	cmd.exe	88
PID 3532 wrote to memory of 4696	3532	cmd.exe	89
PID 3532 wrote to memory of 4696	3532	cmd.exe	89
PID 2952 wrote to memory of 2796	2952	svchost.exe	96
PID 2952 wrote to memory of 2796	2952	svchost.exe	96
PID 2952 wrote to memory of 3788	2952	svchost.exe	99
PID 2952 wrote to memory of 3788	2952	svchost.exe	99
PID 2952 wrote to memory of 2912	2952	svchost.exe	102
PID 2952 wrote to memory of 2912	2952	svchost.exe	102
PID 2952 wrote to memory of 2036	2952	svchost.exe	105
PID 2952 wrote to memory of 2036	2952	svchost.exe	105
PID 2952 wrote to memory of 4252	2952	svchost.exe	107
PID 2952 wrote to memory of 4252	2952	svchost.exe	107

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\BoostFPS.exe
"C:\Users\Admin\AppData\Local\Temp\BoostFPS.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\FPS_BY FILMGODX.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3532
- - C:\Windows\system32\mode.com
    Mode 100,25
    3⤵
    PID:672
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:2788
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "prompt #$H#$E# & echo on & for %b in (1) do rem"
    3⤵
    PID:4696
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.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:2952
- - 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:2796
- - 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:3788
- - 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:2912
- - 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:2036
- - 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:4252

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3936

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2688

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4336

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\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
62623d22bd9e037191765d5083ce16a3

SHA1
4a07da6872672f715a4780513d95ed8ddeefd259

SHA256
95d79fd575bbd21540e378fcbc1cd00d16f51af62ce15bae7080bb72c24e2010

SHA512
9a448b7a0d867466c2ea04ab84d2a9485d5fd20ab53b2b854f491831ee3f1d781b94d2635f7b0b35cb9f2d373cd52c67570879a56a42ed66bc9db06962ed4992

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\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
83685d101174171875b4a603a6c2a35c

SHA1
37be24f7c4525e17fa18dbd004186be3a9209017

SHA256
0c557845aab1da497bbff0e8fbe65cabf4cb2804b97ba8ae8c695a528af70870

SHA512
005a97a8e07b1840abdcef86a7881fd9bdc8acbfdf3eafe1dceb6374060626d81d789e57d87ca4096a39e28d5cca00f8945edff0a747591691ae75873d2b3fb5

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ggugmc0m.dy1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\FPS_BY FILMGODX.bat

Filesize
6KB

MD5
73fa858851ab9f0cb193111d183a3ba5

SHA1
3b6b20d02ce3e39a45b94984d150009e6ea501cb

SHA256
c63a1b8c63acb2c4cab3617934a7a88a7b7dc19a2a1144b7f1b1207ff95f26bb

SHA512
a08237eff698b5fee0909d1fc71a317d64408fd6cce378a259f7d3ac52577a927b553a10182d5d6552868d21a41a961760f49a987bbbaeadabefeee659457ba4

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

Filesize
77KB

MD5
a50564ade45c0a409bb38c06673d6ab9

SHA1
91fd3510c4ccdc50d0eb08249c945271171d5f9f

SHA256
120b13c9edbd9f2fff0ca2e31efb17cef3cac1ea1b4025e8bc7b512f74021a6e

SHA512
7fb99769609027e850c5d6d69912b5dfe82025f24947fa9bff8d88a966ffda315dee8c77086ef171cf75089b6b4d6cb98975b53cbba040c40af50248c4f65cd0

Download Submit
memory/2280-1-0x0000000000040000-0x000000000005E000-memory.dmp

Filesize
120KB

Download
memory/2280-0-0x00007FFD8D673000-0x00007FFD8D675000-memory.dmp

Filesize
8KB

Download
memory/2796-25-0x000002219DD00000-0x000002219DD22000-memory.dmp

Filesize
136KB

Download
memory/2952-19-0x00007FFD8D670000-0x00007FFD8E131000-memory.dmp

Filesize
10.8MB

Download
memory/2952-68-0x00007FFD8D670000-0x00007FFD8E131000-memory.dmp

Filesize
10.8MB

Download
memory/2952-17-0x0000000000390000-0x00000000003AA000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads