xworm | c750a86768228dbb5143efaf9bf1fc980129ed2b51be5bb40ef1db2dd41e9c05

General

Target

shooting the oops.exe
Size

39KB
MD5

c9bd74622a8a1531b93a03ac9c3ba67d
SHA1

b0354cf79ae41e2320d888a38d1c62915bb79445
SHA256

c750a86768228dbb5143efaf9bf1fc980129ed2b51be5bb40ef1db2dd41e9c05
SHA512

6bacb2e43ac5c3d8d2922091f1e263ccfaae3317b0eaae80f973e1344fcb3ce07091712edaa5ab0f9518d08b963c39b13ef085592dc6410509a21fefcab52263
SSDEEP

768:vifC8qTvhE58LEIDPiKuukR7LH3tTfFWPt9eE56cOMh+alE:viTqTvhOeEIbiKuumnNFe9eE56cOME3

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

127.0.0.1:7000

Mutex

M6KBt08Rxl7gnMQb

Attributes

Install_directory
%AppData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3468-1-0x0000000000AD0000-0x0000000000AE0000-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 4 IoCs

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

execution

PowerShell

T1059.001

pid	Process
4808	powershell.exe
3824	powershell.exe
1628	powershell.exe
3100	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-1-5-21-22591836-1183090055-1220658180-1000\Control Panel\International\Geo\Nation	shooting the oops.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\THE BLACKS.lnk	shooting the oops.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\THE BLACKS.lnk	shooting the oops.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-1-5-21-22591836-1183090055-1220658180-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\THE BLACKS = "C:\\Users\\Admin\\AppData\\Roaming\\THE BLACKS"	shooting the oops.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3824	powershell.exe
3824	powershell.exe
1628	powershell.exe
1628	powershell.exe
3100	powershell.exe
3100	powershell.exe
4808	powershell.exe
4808	powershell.exe
3468	shooting the oops.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3468	shooting the oops.exe
Token: SeDebugPrivilege	3824	powershell.exe
Token: SeDebugPrivilege	1628	powershell.exe
Token: SeDebugPrivilege	3100	powershell.exe
Token: SeDebugPrivilege	4808	powershell.exe
Token: SeDebugPrivilege	3468	shooting the oops.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3468	shooting the oops.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3468 wrote to memory of 3824	3468	shooting the oops.exe	87
PID 3468 wrote to memory of 3824	3468	shooting the oops.exe	87
PID 3468 wrote to memory of 1628	3468	shooting the oops.exe	89
PID 3468 wrote to memory of 1628	3468	shooting the oops.exe	89
PID 3468 wrote to memory of 3100	3468	shooting the oops.exe	91
PID 3468 wrote to memory of 3100	3468	shooting the oops.exe	91
PID 3468 wrote to memory of 4808	3468	shooting the oops.exe	93
PID 3468 wrote to memory of 4808	3468	shooting the oops.exe	93

C:\Users\Admin\AppData\Local\Temp\shooting the oops.exe
"C:\Users\Admin\AppData\Local\Temp\shooting the oops.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:3468
- 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\shooting the oops.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3824
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'shooting the oops.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1628
- 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\THE BLACKS'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3100
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'THE BLACKS'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
440cb38dbee06645cc8b74d51f6e5f71

SHA1
d7e61da91dc4502e9ae83281b88c1e48584edb7c

SHA256
8ef7a682dfd99ff5b7e9de0e1be43f0016d68695a43c33c028af2635cc15ecfe

SHA512
3aab19578535e6ba0f6beb5690c87d970292100704209d2dcebddcdd46c6bead27588ef5d98729bfd50606a54cc1edf608b3d15bef42c13b9982aaaf15de7fd6

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

Filesize
944B

MD5
4a154efa7af25bb8b94d0d9c7b4f15cd

SHA1
5e0e04103e4eef1bc7ef242b730aed1958f98e1f

SHA256
c216eda372556eb78e680bde247c2fd2085642ee33031905a213c6bec502ccce

SHA512
fc4678133318fe1952947be74e244246336c7faacc9b9ae32336d57b106ec8f044e5db41dd98e8f3a54270ddacab2fc84a66d5d67deeadc3056ea5213bcbbba4

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

Filesize
944B

MD5
34f595487e6bfd1d11c7de88ee50356a

SHA1
4caad088c15766cc0fa1f42009260e9a02f953bb

SHA256
0f9a4b52e01cb051052228a55d0515911b7ef5a8db3cf925528c746df511424d

SHA512
10976c5deaf9fac449e703e852c3b08d099f430de2d7c7b8e2525c35d63e28b890e5aab63feff9b20bca0aaf9f35a3ba411aee3fbeee9ea59f90ed25bd617a0b

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

Filesize
944B

MD5
a7cc007980e419d553568a106210549a

SHA1
c03099706b75071f36c3962fcc60a22f197711e0

SHA256
a5735921fc72189c8bf577f3911486cf031708dc8d6bc764fe3e593c0a053165

SHA512
b9aaf29403c467daef80a1ae87478afc33b78f4e1ca16189557011bb83cf9b3e29a0f85c69fa209c45201fb28baca47d31756eee07b79c6312c506e8370f7666

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bna1elr1.1id.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3468-1-0x0000000000AD0000-0x0000000000AE0000-memory.dmp

Filesize
64KB

Download
memory/3468-0-0x00007FFBDE8A3000-0x00007FFBDE8A5000-memory.dmp

Filesize
8KB

Download
memory/3468-57-0x00007FFBDE8A0000-0x00007FFBDF361000-memory.dmp

Filesize
10.8MB

Download
memory/3468-56-0x00007FFBDE8A3000-0x00007FFBDE8A5000-memory.dmp

Filesize
8KB

Download
memory/3468-55-0x00007FFBDE8A0000-0x00007FFBDF361000-memory.dmp

Filesize
10.8MB

Download
memory/3824-11-0x000001FEA4E40000-0x000001FEA4E62000-memory.dmp

Filesize
136KB

Download
memory/3824-17-0x00007FFBDE8A0000-0x00007FFBDF361000-memory.dmp

Filesize
10.8MB

Download
memory/3824-14-0x00007FFBDE8A0000-0x00007FFBDF361000-memory.dmp

Filesize
10.8MB

Download
memory/3824-13-0x00007FFBDE8A0000-0x00007FFBDF361000-memory.dmp

Filesize
10.8MB

Download
memory/3824-12-0x00007FFBDE8A0000-0x00007FFBDF361000-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