xworm | 1731919d2dc81ad27833aaaf162c923c8c0e9ec12f0517c7db0409b74e9550c6

Analysis

max time kernel
147s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
01/07/2024, 18:28

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General

Target

zvgfd-main/Output.exe
Size

15KB
MD5

ebe778bb7f785aafdabde3dc83ff3d32
SHA1

cddb3c522dc1193eec1a2f8f2bdaba4e11122632
SHA256

cad85a4084b9e95b65dc2bcf70a1417c94ef700ee83b52c12444115d08cea0b7
SHA512

cbd3ffc44124da5a7e2de6141c96ce68d731655bc8a0406892815c9edbe4469c211e7abaa868abd0578147d69ecace36e0d97e490e51b15a158919eb4a91855a
SSDEEP

384:gY2c0yTTyDsTawMGGbb0Br8XDnKrH9DzLXl:h2cre2rHFL1

Score

10^/10

xworm defense_evasion execution persistence rat trojan

Malware Config

Extracted

Family

xworm

super-nearest.gl.at.ply.gg:17835

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral27/files/0x0009000000023540-6.dat	family_xworm
behavioral27/memory/2280-9-0x0000000000230000-0x000000000024A000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
4300	powershell.exe
4984	powershell.exe

Downloads MZ/PE file

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-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation	Output.exe
Key value queried	\REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2280	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-1-5-21-200405930-3877336739-3533750831-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XxX = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	Output.exe

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

Web Service

T1102

flow	ioc
12	raw.githubusercontent.com
13	raw.githubusercontent.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
32	ip-api.com

Hide Artifacts: Hidden Files and Directories 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2020	cmd.exe

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1604	timeout.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1864	Output.exe
1864	Output.exe
4984	powershell.exe
4984	powershell.exe
4300	powershell.exe
4300	powershell.exe
2280	svchost.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1864	Output.exe
Token: SeDebugPrivilege	2280	svchost.exe
Token: SeDebugPrivilege	4984	powershell.exe
Token: SeDebugPrivilege	4300	powershell.exe
Token: SeDebugPrivilege	2280	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2280	svchost.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 2020	1864	Output.exe	88
PID 1864 wrote to memory of 2020	1864	Output.exe	88
PID 1864 wrote to memory of 2020	1864	Output.exe	88
PID 2020 wrote to memory of 1688	2020	cmd.exe	90
PID 2020 wrote to memory of 1688	2020	cmd.exe	90
PID 2020 wrote to memory of 1688	2020	cmd.exe	90
PID 1864 wrote to memory of 2280	1864	Output.exe	91
PID 1864 wrote to memory of 2280	1864	Output.exe	91
PID 1864 wrote to memory of 3688	1864	Output.exe	92
PID 1864 wrote to memory of 3688	1864	Output.exe	92
PID 1864 wrote to memory of 3688	1864	Output.exe	92
PID 3688 wrote to memory of 1604	3688	cmd.exe	94
PID 3688 wrote to memory of 1604	3688	cmd.exe	94
PID 3688 wrote to memory of 1604	3688	cmd.exe	94
PID 2280 wrote to memory of 4984	2280	svchost.exe	99
PID 2280 wrote to memory of 4984	2280	svchost.exe	99
PID 2280 wrote to memory of 4300	2280	svchost.exe	101
PID 2280 wrote to memory of 4300	2280	svchost.exe	101

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1688	attrib.exe

C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Output.exe
"C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Output.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1864
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /c attrib +h "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:2020
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Views/modifies file attributes
    PID:1688
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2280
- - 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:4984
- - 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:4300
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c timeout /t 1 && DEL /f Output.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3688
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 1
    3⤵
    - Delays execution with timeout.exe
    PID:1604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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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
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wupljgzk.ytx.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
79KB

MD5
a378eb40a60e9a4fb826d90b919dbc34

SHA1
46921006940cda5096b30e0788a5c8e4bddb9137

SHA256
356643a10605dba3e7497cb2cbc586951d99dcb95e9fa8a64b65a6fe4d874ef6

SHA512
2a73b843c3f8c508ead9e8fb73a2f1231d0f0cdc6a483e48a403f891710b9c94e79fca9be499f857a0a7a8189b056464d0e1d37ddae22704951dab66ab719505

Download Submit
memory/1864-1-0x0000000000C50000-0x0000000000C5A000-memory.dmp

Filesize
40KB

Download
memory/1864-2-0x00000000056C0000-0x0000000005726000-memory.dmp

Filesize
408KB

Download
memory/1864-3-0x0000000006060000-0x0000000006604000-memory.dmp

Filesize
5.6MB

Download
memory/1864-4-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/1864-0-0x000000007474E000-0x000000007474F000-memory.dmp

Filesize
4KB

Download
memory/1864-11-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/2280-9-0x0000000000230000-0x000000000024A000-memory.dmp

Filesize
104KB

Download
memory/2280-10-0x00007FFB17363000-0x00007FFB17365000-memory.dmp

Filesize
8KB

Download
memory/2280-36-0x00007FFB17363000-0x00007FFB17365000-memory.dmp

Filesize
8KB

Download
memory/4984-12-0x000002A8D3330000-0x000002A8D3352000-memory.dmp

Filesize
136KB

Download