xworm | 7892c9f14967696e15b99b3eac66d65643357c9a4315f5e8210c8437c6617888

General

Target

0x0007000000016d42-20.exe
Size

75KB
MD5

8d6e86e6e799c75bd5123534bdbf411b
SHA1

9fc526e97077ed2a5e78371fdab5ab7ecf789368
SHA256

7892c9f14967696e15b99b3eac66d65643357c9a4315f5e8210c8437c6617888
SHA512

8cd6e706c3f36d7cb1d6eed3717fd3e96863b6fcf4ee3425f7b08823b8dc364a1de215b578310a3d1fddd98f9eb648ddeafd85d8a2feed399d46fba7dba09265
SSDEEP

1536:2Z6tgBI11qoEgGBfCDYsN+bT0IrgLSUtmf6/rhtOs4eJ9SYUh:2Z1I11qoGBgYA+bgIEOe9htOs4eJjO

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

45.145.41.178:1111

Attributes

Install_directory
%AppData%
install_file
Windows Defender Notification.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4796-1-0x0000000000F50000-0x0000000000F6A000-memory.dmp	family_xworm
behavioral2/files/0x0014000000023a7c-58.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 4 IoCs

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

execution

PowerShell

T1059.001

pid	Process
3860	powershell.exe
4000	powershell.exe
4056	powershell.exe
1824	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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	0x0007000000016d42-20.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Defender Notification.lnk	0x0007000000016d42-20.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Defender Notification.lnk	0x0007000000016d42-20.exe

Executes dropped EXE 2 IoCs

pid	Process
3424	Windows Defender Notification.exe
4800	Windows Defender Notification.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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Defender Notification = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Defender Notification.exe"	0x0007000000016d42-20.exe

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
3296	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4056	powershell.exe
4056	powershell.exe
1824	powershell.exe
1824	powershell.exe
3860	powershell.exe
3860	powershell.exe
4000	powershell.exe
4000	powershell.exe
4796	0x0007000000016d42-20.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	4796	0x0007000000016d42-20.exe
Token: SeDebugPrivilege	4056	powershell.exe
Token: SeDebugPrivilege	1824	powershell.exe
Token: SeDebugPrivilege	3860	powershell.exe
Token: SeDebugPrivilege	4000	powershell.exe
Token: SeDebugPrivilege	4796	0x0007000000016d42-20.exe
Token: SeDebugPrivilege	3424	Windows Defender Notification.exe
Token: SeDebugPrivilege	4800	Windows Defender Notification.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4796	0x0007000000016d42-20.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4796 wrote to memory of 4056	4796	0x0007000000016d42-20.exe	90
PID 4796 wrote to memory of 4056	4796	0x0007000000016d42-20.exe	90
PID 4796 wrote to memory of 1824	4796	0x0007000000016d42-20.exe	93
PID 4796 wrote to memory of 1824	4796	0x0007000000016d42-20.exe	93
PID 4796 wrote to memory of 3860	4796	0x0007000000016d42-20.exe	96
PID 4796 wrote to memory of 3860	4796	0x0007000000016d42-20.exe	96
PID 4796 wrote to memory of 4000	4796	0x0007000000016d42-20.exe	98
PID 4796 wrote to memory of 4000	4796	0x0007000000016d42-20.exe	98
PID 4796 wrote to memory of 3296	4796	0x0007000000016d42-20.exe	100
PID 4796 wrote to memory of 3296	4796	0x0007000000016d42-20.exe	100

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\0x0007000000016d42-20.exe
"C:\Users\Admin\AppData\Local\Temp\0x0007000000016d42-20.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4796
- 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\0x0007000000016d42-20.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4056
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '0x0007000000016d42-20.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1824
- 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\Windows Defender Notification.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3860
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Windows Defender Notification.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4000
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Windows Defender Notification" /tr "C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3296

C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe
"C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3424

C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe
"C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4800

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Windows Defender Notification.exe.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
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
944B

MD5
efd3e404f60d1332fb6ecc7a864c9da7

SHA1
c3cd53812d738045585193ce161d17ee709c674f

SHA256
969eae6cc8e2555f0478adaa7d31bd5545c5a115889361e79ef0abdf19c4371d

SHA512
510dd5f018beebedd2d8aa3b8064a013846fe55ca97e5116523a551799ffb7116849bc39a91891adb55e7c7f142e1312bf5fa7659450172b4fd6f5ab3aa90bfe

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

Filesize
944B

MD5
67e8893616f805af2411e2f4a1411b2a

SHA1
39bf1e1a0ddf46ce7c136972120f512d92827dcd

SHA256
ca0dfe104c1bf27f7e01999fcdabc16c6400c3da937c832c26bdbca322381d31

SHA512
164e911a9935e75c8be1a6ec3d31199a16ba2a1064da6c09d771b2a38dd7fddd142301ef55d67d90f306d3a454a1ce7b72e129ea42e44500b9b8c623a8d98b4d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uqtvrdtp.54e.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe

Filesize
75KB

MD5
8d6e86e6e799c75bd5123534bdbf411b

SHA1
9fc526e97077ed2a5e78371fdab5ab7ecf789368

SHA256
7892c9f14967696e15b99b3eac66d65643357c9a4315f5e8210c8437c6617888

SHA512
8cd6e706c3f36d7cb1d6eed3717fd3e96863b6fcf4ee3425f7b08823b8dc364a1de215b578310a3d1fddd98f9eb648ddeafd85d8a2feed399d46fba7dba09265

Download Submit
memory/4056-12-0x00007FFAEEA30000-0x00007FFAEF4F1000-memory.dmp

Filesize
10.8MB

Download
memory/4056-17-0x00007FFAEEA30000-0x00007FFAEF4F1000-memory.dmp

Filesize
10.8MB

Download
memory/4056-14-0x00007FFAEEA30000-0x00007FFAEF4F1000-memory.dmp

Filesize
10.8MB

Download
memory/4056-13-0x00007FFAEEA30000-0x00007FFAEF4F1000-memory.dmp

Filesize
10.8MB

Download
memory/4056-7-0x000001F4CBD90000-0x000001F4CBDB2000-memory.dmp

Filesize
136KB

Download
memory/4796-0-0x00007FFAEEA33000-0x00007FFAEEA35000-memory.dmp

Filesize
8KB

Download
memory/4796-56-0x00007FFAEEA30000-0x00007FFAEF4F1000-memory.dmp

Filesize
10.8MB

Download
memory/4796-57-0x00007FFAEEA30000-0x00007FFAEF4F1000-memory.dmp

Filesize
10.8MB

Download
memory/4796-1-0x0000000000F50000-0x0000000000F6A000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads