xworm | c1154d35742a0359eb645c7b5db4590096de42bfaee33701ed17758bed0ce8e7

Reason

Machine shutdown

General

Target

Aq.exe
Size

58KB
MD5

74bc243ae7a708ff855d909cd335015e
SHA1

1ae8eaa354fb74477eff655768044fbe4c70061e
SHA256

c1154d35742a0359eb645c7b5db4590096de42bfaee33701ed17758bed0ce8e7
SHA512

8c73551601b6683cb417678b6f9306333c7f7ab87ec38a3a2b6e16399e9ea58dd6e21b8de28dfb215bd3d64669095a1fdc3af40ab45963f7824fc434f91b75e1
SSDEEP

1536:1eh4s4QPbdRsdhz/IbHYfcOeHJ6xuOyQnQua:kxRsHUbHocBUuOJnNa

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

IDKTOBEHONESTNIGAS-56344.portmap.io:56344

Attributes

Install_directory
%LocalAppData%

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral3/memory/2280-1-0x0000000000F80000-0x0000000000F94000-memory.dmp	family_xworm
behavioral3/files/0x002200000002ab45-48.dat	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 3 IoCs

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

execution

PowerShell

T1059.001

pid	Process
764	powershell.exe
1296	powershell.exe
4680	powershell.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
1200	Aq.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-1-5-21-3870231897-2573482396-1083937135-1000\Software\Microsoft\Windows\CurrentVersion\Run\Aq = "C:\\Users\\Admin\\AppData\\Local\\Aq.exe"	Aq.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
1	ip-api.com

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

System Information Discovery
T1082

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292114432"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4290799360"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365268"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292114432"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365268"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "217"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = 99ebff004cc2ff000091f8000078d4000067c000003e9200001a6800f7630c00	LogonUI.exe

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
4416	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1296	powershell.exe
1296	powershell.exe
4680	powershell.exe
4680	powershell.exe
764	powershell.exe
764	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2280	Aq.exe
Token: SeDebugPrivilege	1296	powershell.exe
Token: SeDebugPrivilege	4680	powershell.exe
Token: SeDebugPrivilege	764	powershell.exe
Token: SeDebugPrivilege	2280	Aq.exe
Token: SeDebugPrivilege	1200	Aq.exe
Token: SeShutdownPrivilege	752	shutdown.exe
Token: SeRemoteShutdownPrivilege	752	shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1516	LogonUI.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 1296	2280	Aq.exe	79
PID 2280 wrote to memory of 1296	2280	Aq.exe	79
PID 2280 wrote to memory of 4680	2280	Aq.exe	81
PID 2280 wrote to memory of 4680	2280	Aq.exe	81
PID 2280 wrote to memory of 764	2280	Aq.exe	83
PID 2280 wrote to memory of 764	2280	Aq.exe	83
PID 2280 wrote to memory of 4416	2280	Aq.exe	85
PID 2280 wrote to memory of 4416	2280	Aq.exe	85
PID 2280 wrote to memory of 752	2280	Aq.exe	88
PID 2280 wrote to memory of 752	2280	Aq.exe	88

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\Aq.exe
"C:\Users\Admin\AppData\Local\Temp\Aq.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- 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\Local\Temp\Aq.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1296
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Aq.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4680
- 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\Aq.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:764
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Aq" /tr "C:\Users\Admin\AppData\Local\Aq.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4416
- C:\Windows\SYSTEM32\shutdown.exe
  shutdown.exe /f /s /t 0
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:752

C:\Users\Admin\AppData\Local\Aq.exe
C:\Users\Admin\AppData\Local\Aq.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1200

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39af055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:1516

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

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Aq.exe

Filesize
58KB

MD5
74bc243ae7a708ff855d909cd335015e

SHA1
1ae8eaa354fb74477eff655768044fbe4c70061e

SHA256
c1154d35742a0359eb645c7b5db4590096de42bfaee33701ed17758bed0ce8e7

SHA512
8c73551601b6683cb417678b6f9306333c7f7ab87ec38a3a2b6e16399e9ea58dd6e21b8de28dfb215bd3d64669095a1fdc3af40ab45963f7824fc434f91b75e1

Download Submit
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
6903d57eed54e89b68ebb957928d1b99

SHA1
fade011fbf2e4bc044d41e380cf70bd6a9f73212

SHA256
36cbb00b016c9f97645fb628ef72b524dfbdf6e08d626e5c837bbbb9075dcb52

SHA512
c192ea9810fd22de8378269235c1035aa1fe1975a53c876fe4a7acc726c020f94773c21e4e4771133f9fcedb0209f0a5324c594c1db5b28fe1b27644db4fdc9e

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

Filesize
944B

MD5
781da0576417bf414dc558e5a315e2be

SHA1
215451c1e370be595f1c389f587efeaa93108b4c

SHA256
41a5aef8b0bbeea2766f40a7bba2c78322379f167c610f7055ccb69e7db030fe

SHA512
24e283aa30a2903ebe154dad49b26067a45e46fec57549ad080d3b9ec3f272044efaaed3822d067837f5521262192f466c47195ffe7f75f8c7c5dcf3159ea737

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_s4zpjlzi.tbe.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1296-3-0x00007FFF84F10000-0x00007FFF859D2000-memory.dmp

Filesize
10.8MB

Download
memory/1296-13-0x00007FFF84F10000-0x00007FFF859D2000-memory.dmp

Filesize
10.8MB

Download
memory/1296-14-0x00007FFF84F10000-0x00007FFF859D2000-memory.dmp

Filesize
10.8MB

Download
memory/1296-15-0x00007FFF84F10000-0x00007FFF859D2000-memory.dmp

Filesize
10.8MB

Download
memory/1296-16-0x00007FFF84F10000-0x00007FFF859D2000-memory.dmp

Filesize
10.8MB

Download
memory/1296-19-0x00007FFF84F10000-0x00007FFF859D2000-memory.dmp

Filesize
10.8MB

Download
memory/1296-12-0x00000261C7410000-0x00000261C7432000-memory.dmp

Filesize
136KB

Download
memory/2280-0-0x00007FFF84F13000-0x00007FFF84F15000-memory.dmp

Filesize
8KB

Download
memory/2280-2-0x00007FFF84F10000-0x00007FFF859D2000-memory.dmp

Filesize
10.8MB

Download
memory/2280-45-0x00007FFF84F13000-0x00007FFF84F15000-memory.dmp

Filesize
8KB

Download
memory/2280-1-0x0000000000F80000-0x0000000000F94000-memory.dmp

Filesize
80KB

Download
memory/2280-50-0x00007FFF84F10000-0x00007FFF859D2000-memory.dmp

Filesize
10.8MB

Download
memory/2280-55-0x00007FFF84F10000-0x00007FFF859D2000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads