xworm | fabc467aee7674695a0e55e90f4d7136835d9876fddeac5a9af3e4a071772af5

General

Target

Client1.exe
Size

57KB
MD5

1e0aa64bead9e0338618646b79e4a77b
SHA1

8c3985be98bbfbbc02a0ec6d2d5801483251cf84
SHA256

fabc467aee7674695a0e55e90f4d7136835d9876fddeac5a9af3e4a071772af5
SHA512

eef3fc34edf692ef633080f3fc8ae84c3c60ade77774d994186337a25b9bc26c0a7b0b011d9b03fffbe26c5c3516b3befe4d4fb843d3350d97abdd33b8dcdf83
SSDEEP

768:HBywQrCTMMHowDEBB1MlaXe18di8Zkbkjyh16HUdWVgOLIh6mpN:HE5MIBlQaX68HkbkjyhiUsVgOLID

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

park-meetup.gl.at.ply.gg:62592

Attributes

Install_directory
%AppData%
install_file
test.exe
telegram
https://api.telegram.org/bot7562309856:AAFIj99L-jF0g413E29-ASuHw7g8dapP63M/sendMessage?chat_id=7880028202

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral3/memory/5036-1-0x0000000000880000-0x0000000000894000-memory.dmp	family_xworm
behavioral3/files/0x001b00000002b3dc-12.dat	family_xworm

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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\test.lnk	Client1.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\test.lnk	Client1.exe

Executes dropped EXE 2 IoCs

pid	Process
2064	test.exe
4452	test.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-1-5-21-2873637269-1458872900-2373203793-1000\Software\Microsoft\Windows\CurrentVersion\Run\test = "C:\\Users\\Admin\\AppData\\Roaming\\test.exe"	Client1.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

defense_evasion

pid	Process
1636	timeout.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2873637269-1458872900-2373203793-1000_Classes\Local Settings\MuiCache	MiniSearchHost.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
5756	schtasks.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5036	Client1.exe
Token: SeDebugPrivilege	2064	test.exe
Token: SeDebugPrivilege	4452	test.exe

Suspicious use of FindShellTrayWindow 9 IoCs

pid	Process
5036	Client1.exe
5036	Client1.exe
5036	Client1.exe
5036	Client1.exe
5036	Client1.exe
5036	Client1.exe
5036	Client1.exe
5036	Client1.exe
5036	Client1.exe

Suspicious use of SendNotifyMessage 9 IoCs

pid	Process
5036	Client1.exe
5036	Client1.exe
5036	Client1.exe
5036	Client1.exe
5036	Client1.exe
5036	Client1.exe
5036	Client1.exe
5036	Client1.exe
5036	Client1.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
6048	MiniSearchHost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 5036 wrote to memory of 5756	5036	Client1.exe	87
PID 5036 wrote to memory of 5756	5036	Client1.exe	87
PID 5036 wrote to memory of 5644	5036	Client1.exe	98
PID 5036 wrote to memory of 5644	5036	Client1.exe	98
PID 5036 wrote to memory of 4348	5036	Client1.exe	100
PID 5036 wrote to memory of 4348	5036	Client1.exe	100
PID 4348 wrote to memory of 1636	4348	cmd.exe	102
PID 4348 wrote to memory of 1636	4348	cmd.exe	102

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\Client1.exe
"C:\Users\Admin\AppData\Local\Temp\Client1.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:5036
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "test" /tr "C:\Users\Admin\AppData\Roaming\test.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:5756
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /delete /f /tn "test"
  2⤵
  PID:5644
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp1D9B.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4348
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1636

C:\Users\Admin\AppData\Roaming\test.exe
C:\Users\Admin\AppData\Roaming\test.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2064

C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe
"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:6048

C:\Users\Admin\AppData\Roaming\test.exe
C:\Users\Admin\AppData\Roaming\test.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4452

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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\Microsoft\CLR_v4.0\UsageLogs\test.exe.log

Filesize
654B

MD5
2cbbb74b7da1f720b48ed31085cbd5b8

SHA1
79caa9a3ea8abe1b9c4326c3633da64a5f724964

SHA256
e31b18f21621d9983bfdf1ea3e53884a9d58b8ffd79e0e5790da6f3a81a8b9d3

SHA512
ecf02d5240e0c1c005d3ab393aa7eff62bd498c2db5905157e2bf6d29e1b663228a9583950842629d1a4caef404c8941a0c7799b1a3bd1eb890a09fdb7efcff9

Download Submit
C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchHoverUnifiedTileModelCache.dat

Filesize
24KB

MD5
aa5f023c947a39567aa77454805172c5

SHA1
2eeb0726882d0f09dc2d63f69ed40aa60ed205bd

SHA256
e8164ec588c417d10454e45cfd179ff2db21b9327c6bf75112e245dc5be4fd4b

SHA512
249439d8114d1f29b570ee9c5e742b922ac525af26a0ba5054892faaff80ac3af04cb55283e74373bd6b2ff8226584ea3e8c66d7e5ea1da0ff93fcf365cb2155

Download Submit
C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchHoverUnifiedTileModelCache.dat

Filesize
24KB

MD5
2ff5abf5c4b9149a19245eb28c0c6613

SHA1
7a9fd1ea4ff86b8476d054623d3fba36322c34cc

SHA256
6c8602dc88149327a96d492ded042038b3a743ef517abb653945f2f1945bb372

SHA512
c51182916c0f09b989a0b068845a355a108e2ff7ee0254e1690f32902e40e2c9c7be44876f5954c20e48317fef4d9cd93000e9b54678599ca045c1096a547b51

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1D9B.tmp.bat

Filesize
159B

MD5
dddb96e35043307594dafb09f44efb7a

SHA1
bff323c893c42dec5f612f4e0fe63719e86353b6

SHA256
19b2bdbfccf79a27aa7e5e17b99f34656b9d97cb4a15d5dca659e868e971855e

SHA512
cd1c3f25f4e906ec7483159e7254e1cc7b9d28c902bfceb080b582f5e28d74ff4dbb0133b4d564a267ced8df0eecf1c7bea9fb75c7555d6c537d91586fdc7a74

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

Filesize
57KB

MD5
1e0aa64bead9e0338618646b79e4a77b

SHA1
8c3985be98bbfbbc02a0ec6d2d5801483251cf84

SHA256
fabc467aee7674695a0e55e90f4d7136835d9876fddeac5a9af3e4a071772af5

SHA512
eef3fc34edf692ef633080f3fc8ae84c3c60ade77774d994186337a25b9bc26c0a7b0b011d9b03fffbe26c5c3516b3befe4d4fb843d3350d97abdd33b8dcdf83

Download Submit
memory/2064-16-0x00007FFB70D00000-0x00007FFB717C2000-memory.dmp

Filesize
10.8MB

Download
memory/2064-14-0x00007FFB70D00000-0x00007FFB717C2000-memory.dmp

Filesize
10.8MB

Download
memory/5036-8-0x00007FFB70D03000-0x00007FFB70D05000-memory.dmp

Filesize
8KB

Download
memory/5036-11-0x00000000010E0000-0x00000000010EA000-memory.dmp

Filesize
40KB

Download
memory/5036-9-0x00007FFB70D00000-0x00007FFB717C2000-memory.dmp

Filesize
10.8MB

Download
memory/5036-0-0x00007FFB70D03000-0x00007FFB70D05000-memory.dmp

Filesize
8KB

Download
memory/5036-7-0x000000001C340000-0x000000001C444000-memory.dmp

Filesize
1.0MB

Download
memory/5036-36-0x000000001C330000-0x000000001C33C000-memory.dmp

Filesize
48KB

Download
memory/5036-6-0x00007FFB70D00000-0x00007FFB717C2000-memory.dmp

Filesize
10.8MB

Download
memory/5036-1-0x0000000000880000-0x0000000000894000-memory.dmp

Filesize
80KB

Download
memory/5036-45-0x00007FFB70D00000-0x00007FFB717C2000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads