xworm | 28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b

General

Target

28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe
Size

150KB
MD5

d5c26e12be6264033efd9e5e0662a953
SHA1

e4570cecc53e5e916c06e38c62221f27af7a1225
SHA256

28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b
SHA512

adbb48ebda59c9b804ddaf4561a0679436987d6deef883d632f0eeb30adbc9c812f09eeefbbaef013f3139a5b6e3665af276a283c5ef73031861b49d01136b55
SSDEEP

3072:Ahd295oBFr9DnO/nk4NpVq8BxFRzaqF+o2GQJ7/JzqVfGvM:AaLonr9jgVqwlL

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

p-never.gl.at.ply.gg:57388

Mutex

EKx5toUcZoEkFlZt

Attributes

Install_directory
%AppData%
install_file
svchost.exe

aes.plain

Signatures

Detect Xworm Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1740-1-0x00000000012F0000-0x000000000131C000-memory.dmp	family_xworm
C:\Users\Admin\AppData\Roaming\svchost.exe	family_xworm
behavioral1/memory/836-37-0x00000000003B0000-0x00000000003DC000-memory.dmp	family_xworm
behavioral1/memory/1664-40-0x00000000010D0000-0x00000000010FC000-memory.dmp	family_xworm

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

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid process

2516 powershell.exe
2688 powershell.exe
2416 powershell.exe
2648 powershell.exe

pid	process
2516	powershell.exe
2688	powershell.exe
2416	powershell.exe
2648	powershell.exe

Drops startup file 2 IoCs

Processes:

28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe

Executes dropped EXE 2 IoCs

Processes:

svchost.exesvchost.exe

pid process

836 svchost.exe
1664 svchost.exe

pid	process
836	svchost.exe
1664	svchost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

1476 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid process

2648 powershell.exe
2516 powershell.exe
2688 powershell.exe
2416 powershell.exe

pid	process
1476	schtasks.exe

pid	process
2648	powershell.exe
2516	powershell.exe
2688	powershell.exe
2416	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exepowershell.exepowershell.exepowershell.exepowershell.exesvchost.exesvchost.exe

description	pid	process
Token: SeDebugPrivilege	1740	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe
Token: SeDebugPrivilege	2648	powershell.exe
Token: SeDebugPrivilege	2516	powershell.exe
Token: SeDebugPrivilege	2688	powershell.exe
Token: SeDebugPrivilege	2416	powershell.exe
Token: SeDebugPrivilege	1740	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe
Token: SeDebugPrivilege	836	svchost.exe
Token: SeDebugPrivilege	1664	svchost.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exetaskeng.exe

description	pid	process	target process
PID 1740 wrote to memory of 2648	1740	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe	powershell.exe
PID 1740 wrote to memory of 2648	1740	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe	powershell.exe
PID 1740 wrote to memory of 2648	1740	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe	powershell.exe
PID 1740 wrote to memory of 2516	1740	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe	powershell.exe
PID 1740 wrote to memory of 2516	1740	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe	powershell.exe
PID 1740 wrote to memory of 2516	1740	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe	powershell.exe
PID 1740 wrote to memory of 2688	1740	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe	powershell.exe
PID 1740 wrote to memory of 2688	1740	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe	powershell.exe
PID 1740 wrote to memory of 2688	1740	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe	powershell.exe
PID 1740 wrote to memory of 2416	1740	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe	powershell.exe
PID 1740 wrote to memory of 2416	1740	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe	powershell.exe
PID 1740 wrote to memory of 2416	1740	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe	powershell.exe
PID 1740 wrote to memory of 1476	1740	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe	schtasks.exe
PID 1740 wrote to memory of 1476	1740	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe	schtasks.exe
PID 1740 wrote to memory of 1476	1740	28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe	schtasks.exe
PID 1244 wrote to memory of 836	1244	taskeng.exe	svchost.exe
PID 1244 wrote to memory of 836	1244	taskeng.exe	svchost.exe
PID 1244 wrote to memory of 836	1244	taskeng.exe	svchost.exe
PID 1244 wrote to memory of 1664	1244	taskeng.exe	svchost.exe
PID 1244 wrote to memory of 1664	1244	taskeng.exe	svchost.exe
PID 1244 wrote to memory of 1664	1244	taskeng.exe	svchost.exe

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\28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe
"C:\Users\Admin\AppData\Local\Temp\28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1740

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\28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2648

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2516

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'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2688

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2416

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"
2⤵
- Creates scheduled task(s)
PID:1476

C:\Windows\system32\taskeng.exe
taskeng.exe {A360F814-F690-432C-90E8-C888799D602D} S-1-5-21-2297530677-1229052932-2803917579-1000:HKULBIBU\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1244

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:836

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1664

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize
7KB

MD5
db2560e5d1c6ee6027cb00718b675e02

SHA1
34ee3c78d41dda494077b6611109a4ec12513dd6

SHA256
993cf5b3aac7f2f94c00ec986f65c36a5c6b1fc65c1ce56e61fa9012715b3deb

SHA512
09ad2c5f0cb04faed17e0effaf1dfb0725901a7476e8fb19fce5444bdfee54d76c971397c69545c52c098c8a82b98584af152f46445f26013eaa3696d72a62ea

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe
Filesize
150KB

MD5
d5c26e12be6264033efd9e5e0662a953

SHA1
e4570cecc53e5e916c06e38c62221f27af7a1225

SHA256
28c951715ea1f1e20db6e2694c8b9676837190d4ff1c49c6c9f7cb41b899a91b

SHA512
adbb48ebda59c9b804ddaf4561a0679436987d6deef883d632f0eeb30adbc9c812f09eeefbbaef013f3139a5b6e3665af276a283c5ef73031861b49d01136b55

Download Submit
\??\PIPE\srvsvc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/836-37-0x00000000003B0000-0x00000000003DC000-memory.dmp

Filesize
176KB

Download
memory/1664-40-0x00000000010D0000-0x00000000010FC000-memory.dmp

Filesize
176KB

Download
memory/1740-32-0x000007FEF5B03000-0x000007FEF5B04000-memory.dmp

Filesize
4KB

Download
memory/1740-1-0x00000000012F0000-0x000000000131C000-memory.dmp

Filesize
176KB

Download
memory/1740-0-0x000007FEF5B03000-0x000007FEF5B04000-memory.dmp

Filesize
4KB

Download
memory/1740-33-0x000000001B1F0000-0x000000001B270000-memory.dmp

Filesize
512KB

Download
memory/1740-31-0x000000001B1F0000-0x000000001B270000-memory.dmp

Filesize
512KB

Download
memory/2516-14-0x000000001B650000-0x000000001B932000-memory.dmp

Filesize
2.9MB

Download
memory/2516-15-0x0000000002250000-0x0000000002258000-memory.dmp

Filesize
32KB

Download
memory/2648-8-0x0000000002720000-0x0000000002728000-memory.dmp

Filesize
32KB

Download
memory/2648-7-0x000000001B500000-0x000000001B7E2000-memory.dmp

Filesize
2.9MB

Download
memory/2648-6-0x0000000002A20000-0x0000000002AA0000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads