xworm | 5dc9341df08796ab376579f34442247fa6942463974bad85e6d2709a114fe037

General

Target

XBinderOutput.exe
Size

334KB
MD5

bd5a99d1a915d183796d52364729242f
SHA1

d0b0913ac86154d9eb6ab8f22b1b6d0e3682aa51
SHA256

5dc9341df08796ab376579f34442247fa6942463974bad85e6d2709a114fe037
SHA512

1b076341992c63268b4ba400fb0ca9b65b49af09c5fb01553cee1e80da2dc18cd53f920bfa9987bd13b9c2f3b42cad54fc573f3a2ca7a1b9d50b98c32671fb91
SSDEEP

6144:v98Spzgs21x/GJqkntASwQvJzp8kRJoKXqwUHrsTB2zs+FAWKiXG/P16fCt3OY:GKgs2X/gDiVBQTB2zI6TO3O

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.0

C2

silver-bowl.gl.at.ply.gg:684

silver-bowl.gl.at.ply.gg:0684

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e553-17.dat	family_xworm
behavioral2/memory/4332-27-0x0000000000270000-0x000000000028A000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

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

execution

PowerShell

T1059.001

pid	Process
3696	powershell.exe
4012	powershell.exe
3992	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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	XBinderOutput.exe
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	Bootstrapper v4c.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Bootstrapper v4c.lnk	Bootstrapper v4c.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Bootstrapper v4c.lnk	Bootstrapper v4c.exe

Executes dropped EXE 2 IoCs

pid	Process
2332	Bootstrapper v4.exe
4332	Bootstrapper v4c.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bootstrapper v4 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Bootstrapper v4.exe"	XBinderOutput.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bootstrapper v4c = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Bootstrapper v4c.exe"	XBinderOutput.exe

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

Web Service

T1102

flow	ioc
16	pastebin.com
17	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
20	ip-api.com

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3696	powershell.exe
3696	powershell.exe
4012	powershell.exe
4012	powershell.exe
3992	powershell.exe
3992	powershell.exe
4332	Bootstrapper v4c.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4332	Bootstrapper v4c.exe
Token: SeDebugPrivilege	2332	Bootstrapper v4.exe
Token: SeDebugPrivilege	3696	powershell.exe
Token: SeDebugPrivilege	4012	powershell.exe
Token: SeDebugPrivilege	3992	powershell.exe
Token: SeDebugPrivilege	4332	Bootstrapper v4c.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4332	Bootstrapper v4c.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4396 wrote to memory of 2332	4396	XBinderOutput.exe	87
PID 4396 wrote to memory of 2332	4396	XBinderOutput.exe	87
PID 4396 wrote to memory of 4332	4396	XBinderOutput.exe	89
PID 4396 wrote to memory of 4332	4396	XBinderOutput.exe	89
PID 4332 wrote to memory of 3696	4332	Bootstrapper v4c.exe	94
PID 4332 wrote to memory of 3696	4332	Bootstrapper v4c.exe	94
PID 4332 wrote to memory of 4012	4332	Bootstrapper v4c.exe	96
PID 4332 wrote to memory of 4012	4332	Bootstrapper v4c.exe	96
PID 4332 wrote to memory of 3992	4332	Bootstrapper v4c.exe	99
PID 4332 wrote to memory of 3992	4332	Bootstrapper v4c.exe	99

C:\Users\Admin\AppData\Local\Temp\XBinderOutput.exe
"C:\Users\Admin\AppData\Local\Temp\XBinderOutput.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4396
- C:\Users\Admin\AppData\Local\Temp\Bootstrapper v4.exe
  "C:\Users\Admin\AppData\Local\Temp\Bootstrapper v4.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2332
- C:\Users\Admin\AppData\Local\Temp\Bootstrapper v4c.exe
  "C:\Users\Admin\AppData\Local\Temp\Bootstrapper v4c.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4332
- - 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\Bootstrapper v4c.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3696
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Bootstrapper v4c.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4012
- - 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\Bootstrapper v4c.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3992

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

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
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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
f0a41fc9c1123bb127e55ecc66c8f052

SHA1
57152411758fa3df2623cc8a4df6d9fea73652f8

SHA256
a4fe2be2c449e841f6a12d32114672b097fc1058b6f2971a03521220a0228745

SHA512
e3e967adac361ddcf8240cf641f3e77eacfefc61dec725b8ae12e6a94f7d2ebd937fb9eb3cd068a0b3d4306e163dc87773b322bc2dd8b7df93b8103d0e99a900

Download Submit
C:\Users\Admin\AppData\Local\Temp\Bootstrapper v4.exe

Filesize
796KB

MD5
4b94b989b0fe7bec6311153b309dfe81

SHA1
bb50a4bb8a66f0105c5b74f32cd114c672010b22

SHA256
7c4283f5e620b2506bcb273f947def4435d95e143ae3067a783fd3adc873a659

SHA512
fbbe60cf3e5d028d906e7d444b648f7dff8791c333834db8119e0a950532a75fda2e9bd5948f0b210904667923eb7b2c0176140babc497955d227e7d80fb109d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Bootstrapper v4c.exe

Filesize
79KB

MD5
64553acae30df85c70a7e8c1750a21fa

SHA1
a106939b1fdb775c33cfe1ad4007579c0dc8c369

SHA256
03c0c0a803543d40715b14afb48eeb2ad5cffb95d78c99f7eb544610e9099cf5

SHA512
149867abeba71221b2951dd51c15d6aa27cfec9854a5ff721700bab69b86a60d76eab3918872d8a8079fcaf2314fc5434fd0b5c20749c43f9277e55fe165823b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gmigmigo.syq.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2332-31-0x00007FF92B0D0000-0x00007FF92B2C5000-memory.dmp

Filesize
2.0MB

Download
memory/2332-30-0x000001C101280000-0x000001C10134E000-memory.dmp

Filesize
824KB

Download
memory/2332-29-0x00007FF92B0D0000-0x00007FF92B2C5000-memory.dmp

Filesize
2.0MB

Download
memory/2332-33-0x000001C11B870000-0x000001C11B892000-memory.dmp

Filesize
136KB

Download
memory/2332-74-0x00007FF92B0D0000-0x00007FF92B2C5000-memory.dmp

Filesize
2.0MB

Download
memory/4332-73-0x00007FF92B0D0000-0x00007FF92B2C5000-memory.dmp

Filesize
2.0MB

Download
memory/4332-75-0x00007FF92B0D0000-0x00007FF92B2C5000-memory.dmp

Filesize
2.0MB

Download
memory/4332-34-0x00007FF92B0D0000-0x00007FF92B2C5000-memory.dmp

Filesize
2.0MB

Download
memory/4332-27-0x0000000000270000-0x000000000028A000-memory.dmp

Filesize
104KB

Download
memory/4332-25-0x00007FF92B0D0000-0x00007FF92B2C5000-memory.dmp

Filesize
2.0MB

Download
memory/4396-0-0x00007FF92B0D0000-0x00007FF92B2C5000-memory.dmp

Filesize
2.0MB

Download
memory/4396-1-0x0000000000CD0000-0x0000000000D28000-memory.dmp

Filesize
352KB

Download
memory/4396-2-0x00007FF92B0D0000-0x00007FF92B2C5000-memory.dmp

Filesize
2.0MB

Download
memory/4396-26-0x00007FF92B0D0000-0x00007FF92B2C5000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads