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/4280-1-0x0000000000DE0000-0x0000000000DF0000-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
4216	powershell.exe
1972	powershell.exe
60	powershell.exe
1048	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-1-5-21-100612193-3312047696-905266872-1000\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-1-5-21-100612193-3312047696-905266872-1000\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
4216	powershell.exe
4216	powershell.exe
1972	powershell.exe
1972	powershell.exe
60	powershell.exe
60	powershell.exe
1048	powershell.exe
1048	powershell.exe
4280	shooting the oops.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4280	shooting the oops.exe
Token: SeDebugPrivilege	4216	powershell.exe
Token: SeDebugPrivilege	1972	powershell.exe
Token: SeDebugPrivilege	60	powershell.exe
Token: SeDebugPrivilege	1048	powershell.exe
Token: SeDebugPrivilege	4280	shooting the oops.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4280	shooting the oops.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4280 wrote to memory of 4216	4280	shooting the oops.exe	90
PID 4280 wrote to memory of 4216	4280	shooting the oops.exe	90
PID 4280 wrote to memory of 1972	4280	shooting the oops.exe	92
PID 4280 wrote to memory of 1972	4280	shooting the oops.exe	92
PID 4280 wrote to memory of 60	4280	shooting the oops.exe	94
PID 4280 wrote to memory of 60	4280	shooting the oops.exe	94
PID 4280 wrote to memory of 1048	4280	shooting the oops.exe	98
PID 4280 wrote to memory of 1048	4280	shooting the oops.exe	98

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:4280
- 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:4216
- 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:1972
- 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:60
- 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:1048

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
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
944B

MD5
eb1ad317bd25b55b2bbdce8a28a74a94

SHA1
98a3978be4d10d62e7411946474579ee5bdc5ea6

SHA256
9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98

SHA512
d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0gylo0zm.u4o.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4216-12-0x00007FF83AC30000-0x00007FF83B6F1000-memory.dmp

Filesize
10.8MB

Download
memory/4216-13-0x00007FF83AC30000-0x00007FF83B6F1000-memory.dmp

Filesize
10.8MB

Download
memory/4216-14-0x00007FF83AC30000-0x00007FF83B6F1000-memory.dmp

Filesize
10.8MB

Download
memory/4216-17-0x00007FF83AC30000-0x00007FF83B6F1000-memory.dmp

Filesize
10.8MB

Download
memory/4216-2-0x000001D2A96A0000-0x000001D2A96C2000-memory.dmp

Filesize
136KB

Download
memory/4280-0-0x00007FF83AC33000-0x00007FF83AC35000-memory.dmp

Filesize
8KB

Download
memory/4280-1-0x0000000000DE0000-0x0000000000DF0000-memory.dmp

Filesize
64KB

Download
memory/4280-55-0x00007FF83AC30000-0x00007FF83B6F1000-memory.dmp

Filesize
10.8MB

Download
memory/4280-56-0x00007FF83AC30000-0x00007FF83B6F1000-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