xworm | 56747e2199faa9d6a532d07432f7f784f1ab773bfbae4bc2c4384574c035a260

General

Target

Luxury Crypter‌.exe
Size

7.0MB
MD5

f52edee9472d973f7aedaa58baed96e6
SHA1

dee4734806f0a47e81627a66b2c75e5ec37b6b1a
SHA256

56747e2199faa9d6a532d07432f7f784f1ab773bfbae4bc2c4384574c035a260
SHA512

1568f66ea43208900e1800ac59946f92d426d05d00783decdce31eb088ec54cd467adf640e5b2a5388f5ee6ccd2840dfe551f9ae18c06b168a469ec18a85ef0b
SSDEEP

98304:bmurSHFk4vh9IWa/LP3Nm9Zlxne1uxetbDEgovbddnY6Jy3yH/O:b6m7P3Nm9ZWiADEp5F0R

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Extracted

Family

xworm

C2

146.190.110.91:3389

Attributes

Install_directory
%AppData%
install_file
svchost.exe
telegram
https://api.telegram.org/bot7023899363:AAFEzgbfWzhyE32Lf95TKSRYEYXMd4AfMyk/sendMessage?chat_id=6354844663

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\svchost.exe	family_xworm
behavioral2/memory/1708-16-0x0000000000EE0000-0x0000000000EF6000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Command and Scripting Interpreter: PowerShell 1 TTPs 5 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.exepowershell.exe

pid process

2400 powershell.exe
2736 powershell.exe
2724 powershell.exe
2592 powershell.exe
1904 powershell.exe

pid	process
2400	powershell.exe
2736	powershell.exe
2724	powershell.exe
2592	powershell.exe
1904	powershell.exe

Drops startup file 3 IoCs

Processes:

svchost.exemsedgewebview2.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	svchost.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\msedgewebview2.exe.lnk	msedgewebview2.exe

Executes dropped EXE 5 IoCs

Processes:

Luxury Crypter.exesvchost.exemsedgewebview2.exemsedgewebview2.exemsedgewebview2.exe

pid process

2164 Luxury Crypter.exe
1708 svchost.exe
3052 msedgewebview2.exe
2772 msedgewebview2.exe
2220 msedgewebview2.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
discovery

System Language Discovery
T1614.001

Processes:

Luxury Crypter.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Luxury Crypter.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1112 timeout.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

Processes:

schtasks.exe

pid process

1900 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

svchost.exemsedgewebview2.exe

pid process

1708 svchost.exe
2772 msedgewebview2.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exesvchost.exepowershell.exe

pid process

2400 powershell.exe
2736 powershell.exe
2724 powershell.exe
2592 powershell.exe
1708 svchost.exe
1904 powershell.exe

pid	process
2164	Luxury Crypter.exe
1708	svchost.exe
3052	msedgewebview2.exe
2772	msedgewebview2.exe
2220	msedgewebview2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Luxury Crypter.exe

pid	process
1112	timeout.exe

pid	process
1900	schtasks.exe

pid	process
1708	svchost.exe
2772	msedgewebview2.exe

pid	process
2400	powershell.exe
2736	powershell.exe
2724	powershell.exe
2592	powershell.exe
1708	svchost.exe
1904	powershell.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

Processes:

svchost.exepowershell.exepowershell.exepowershell.exepowershell.exemsedgewebview2.exepowershell.exemsedgewebview2.exe

description	pid	process
Token: SeDebugPrivilege	1708	svchost.exe
Token: SeDebugPrivilege	2400	powershell.exe
Token: SeDebugPrivilege	2736	powershell.exe
Token: SeDebugPrivilege	2724	powershell.exe
Token: SeDebugPrivilege	2592	powershell.exe
Token: SeDebugPrivilege	1708	svchost.exe
Token: SeDebugPrivilege	3052	msedgewebview2.exe
Token: SeDebugPrivilege	1904	powershell.exe
Token: SeDebugPrivilege	2772	msedgewebview2.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

svchost.exe

pid process

1708 svchost.exe

pid	process
1708	svchost.exe

Suspicious use of WriteProcessMemory 40 IoCs

Processes:

Luxury Crypter‌.exesvchost.exemsedgewebview2.execmd.exetaskeng.exe

description	pid	process	target process
PID 2900 wrote to memory of 2164	2900	Luxury Crypter‌.exe	Luxury Crypter.exe
PID 2900 wrote to memory of 2164	2900	Luxury Crypter‌.exe	Luxury Crypter.exe
PID 2900 wrote to memory of 2164	2900	Luxury Crypter‌.exe	Luxury Crypter.exe
PID 2900 wrote to memory of 2164	2900	Luxury Crypter‌.exe	Luxury Crypter.exe
PID 2900 wrote to memory of 1708	2900	Luxury Crypter‌.exe	svchost.exe
PID 2900 wrote to memory of 1708	2900	Luxury Crypter‌.exe	svchost.exe
PID 2900 wrote to memory of 1708	2900	Luxury Crypter‌.exe	svchost.exe
PID 1708 wrote to memory of 2400	1708	svchost.exe	powershell.exe
PID 1708 wrote to memory of 2400	1708	svchost.exe	powershell.exe
PID 1708 wrote to memory of 2400	1708	svchost.exe	powershell.exe
PID 2900 wrote to memory of 3052	2900	Luxury Crypter‌.exe	msedgewebview2.exe
PID 2900 wrote to memory of 3052	2900	Luxury Crypter‌.exe	msedgewebview2.exe
PID 2900 wrote to memory of 3052	2900	Luxury Crypter‌.exe	msedgewebview2.exe
PID 1708 wrote to memory of 2736	1708	svchost.exe	powershell.exe
PID 1708 wrote to memory of 2736	1708	svchost.exe	powershell.exe
PID 1708 wrote to memory of 2736	1708	svchost.exe	powershell.exe
PID 1708 wrote to memory of 2724	1708	svchost.exe	powershell.exe
PID 1708 wrote to memory of 2724	1708	svchost.exe	powershell.exe
PID 1708 wrote to memory of 2724	1708	svchost.exe	powershell.exe
PID 1708 wrote to memory of 2592	1708	svchost.exe	powershell.exe
PID 1708 wrote to memory of 2592	1708	svchost.exe	powershell.exe
PID 1708 wrote to memory of 2592	1708	svchost.exe	powershell.exe
PID 3052 wrote to memory of 1904	3052	msedgewebview2.exe	powershell.exe
PID 3052 wrote to memory of 1904	3052	msedgewebview2.exe	powershell.exe
PID 3052 wrote to memory of 1904	3052	msedgewebview2.exe	powershell.exe
PID 3052 wrote to memory of 1900	3052	msedgewebview2.exe	schtasks.exe
PID 3052 wrote to memory of 1900	3052	msedgewebview2.exe	schtasks.exe
PID 3052 wrote to memory of 1900	3052	msedgewebview2.exe	schtasks.exe
PID 3052 wrote to memory of 2772	3052	msedgewebview2.exe	msedgewebview2.exe
PID 3052 wrote to memory of 2772	3052	msedgewebview2.exe	msedgewebview2.exe
PID 3052 wrote to memory of 2772	3052	msedgewebview2.exe	msedgewebview2.exe
PID 3052 wrote to memory of 2904	3052	msedgewebview2.exe	cmd.exe
PID 3052 wrote to memory of 2904	3052	msedgewebview2.exe	cmd.exe
PID 3052 wrote to memory of 2904	3052	msedgewebview2.exe	cmd.exe
PID 2904 wrote to memory of 1112	2904	cmd.exe	timeout.exe
PID 2904 wrote to memory of 1112	2904	cmd.exe	timeout.exe
PID 2904 wrote to memory of 1112	2904	cmd.exe	timeout.exe
PID 904 wrote to memory of 2220	904	taskeng.exe	msedgewebview2.exe
PID 904 wrote to memory of 2220	904	taskeng.exe	msedgewebview2.exe
PID 904 wrote to memory of 2220	904	taskeng.exe	msedgewebview2.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\Luxury Crypter‌.exe
"C:\Users\Admin\AppData\Local\Temp\Luxury Crypter‌.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2900
- C:\Users\Admin\AppData\Local\Temp\Luxury Crypter.exe
  "C:\Users\Admin\AppData\Local\Temp\Luxury Crypter.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2164
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1708
- - 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:2400
- - 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:2736
- - 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:2724
- - 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:2592
- C:\ProgramData\msedgewebview2.exe
  "C:\ProgramData\msedgewebview2.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3052
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\ACCApi'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1904
- - C:\Windows\system32\schtasks.exe
    "schtasks.exe" /create /tn msedgewebview2 /tr "C:\Users\Admin\AppData\Local\ACCApi\msedgewebview2.exe" /st 17:57 /du 23:59 /sc daily /ri 1 /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1900
- - C:\Users\Admin\AppData\Local\ACCApi\msedgewebview2.exe
    "C:\Users\Admin\AppData\Local\ACCApi\msedgewebview2.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious use of AdjustPrivilegeToken
    PID:2772
- - C:\Windows\system32\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpDF09.tmp.cmd""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2904
  - - C:\Windows\system32\timeout.exe
      timeout 6
      4⤵
      Delays execution with timeout.exe
      PID:1112

C:\Windows\system32\taskeng.exe
taskeng.exe {BC017E15-0F6A-44C9-B28F-D996B4A908DF} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:904
- C:\Users\Admin\AppData\Local\ACCApi\msedgewebview2.exe
  C:\Users\Admin\AppData\Local\ACCApi\msedgewebview2.exe
  2⤵
  - Executes dropped EXE
  PID:2220

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

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Luxury Crypter.exe

Filesize
8.8MB

MD5
9c55d8c0b720f652e4ad3753e9939b99

SHA1
ee69da72e65d44638f352791b2114887e2110384

SHA256
44a220f92ce2822d3d8e9c7ded429c9e53f650224759c8ec75c49706716fda77

SHA512
ea88bcf9b289ef4b2ba34f3b7818aee672867418d4e8fb29d5fac99688e30babfc21a7279151397ef47f8d852b8129ed63a42eec7e1a5bd598c744af9da320b7

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDF09.tmp.cmd

Filesize
147B

MD5
6de81bf833c7f1db84a4ec547404e4d1

SHA1
0373d43f9d1de573b8d41fc68401a0345a40f985

SHA256
956f94a9b9ef4cb133374310584a64082a67357453584e4f4283b7b6b83a0db8

SHA512
bb6749a368c133469489f389a4c92601d3edbf9fddd6571af3bff1238726dde1b39be8f30c0147b909903c43ed8ea8bf62575cfd8046b1151383da1235792a9e

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\HKTGCRC0JAOBU91RFUSB.temp

Filesize
7KB

MD5
ce4cd5361919c2ba61132f2b3490f901

SHA1
dd2a8c33770491ca7d9dabd0c0e22b634c41edcc

SHA256
e9e86bbad8625448ac1fec082f13978aae452077158575b652a31f58068063cc

SHA512
0f08b0de0a6ea781343de0e1d11c2f0682540d4daa9f514183c84bedd727a644f35a408c1f2646b53b607f3fa543d422127fd5801539ee26db8591ac323a7884

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

Filesize
67KB

MD5
39f4793e3bd69fde3059e02b84875bef

SHA1
4ae174ff10e05e7946c6220b2ef7565830596b3c

SHA256
eee698d53132459d85ad39ef66c6b33769dbf69469a346a1ea26c13eebfb4102

SHA512
4642ba370d794ffc0dac13a84f8ea3501f9a88a0d2584daecbb340b92cce1dd14c46b7d9d5f4a27a60c1365584f995aa7e93fdc70c4775425f5b3590f6eeec50

Download Submit
\??\PIPE\srvsvc

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/1708-16-0x0000000000EE0000-0x0000000000EF6000-memory.dmp

Filesize
88KB

Download
memory/1708-75-0x0000000000D00000-0x0000000000D0C000-memory.dmp

Filesize
48KB

Download
memory/1904-59-0x000000001B640000-0x000000001B922000-memory.dmp

Filesize
2.9MB

Download
memory/1904-60-0x00000000028E0000-0x00000000028E8000-memory.dmp

Filesize
32KB

Download
memory/2164-17-0x0000000000B10000-0x00000000013EA000-memory.dmp

Filesize
8.9MB

Download
memory/2400-22-0x000000001B760000-0x000000001BA42000-memory.dmp

Filesize
2.9MB

Download
memory/2400-23-0x0000000001E20000-0x0000000001E28000-memory.dmp

Filesize
32KB

Download
memory/2592-50-0x0000000002910000-0x0000000002918000-memory.dmp

Filesize
32KB

Download
memory/2592-49-0x000000001B4C0000-0x000000001B7A2000-memory.dmp

Filesize
2.9MB

Download
memory/2736-38-0x0000000001E90000-0x0000000001E98000-memory.dmp

Filesize
32KB

Download
memory/2736-37-0x000000001B580000-0x000000001B862000-memory.dmp

Filesize
2.9MB

Download
memory/2772-73-0x00000000012C0000-0x0000000001302000-memory.dmp

Filesize
264KB

Download
memory/2900-2-0x000007FEF5580000-0x000007FEF5F6C000-memory.dmp

Filesize
9.9MB

Download
memory/2900-31-0x000007FEF5580000-0x000007FEF5F6C000-memory.dmp

Filesize
9.9MB

Download
memory/2900-0-0x000007FEF5583000-0x000007FEF5584000-memory.dmp

Filesize
4KB

Download
memory/2900-1-0x0000000000CB0000-0x00000000013B8000-memory.dmp

Filesize
7.0MB

Download
memory/3052-30-0x0000000000080000-0x00000000000C2000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads