xworm | 43738906c630492486b01b50f6eaa5088e91d1036098c0999491d11dfc49949b

General

Target

2024-01-10-18-19-14.exe
Size

80KB
MD5

a6515bf51a0b935e94ccb887ebbdf024
SHA1

f47c53f783f55a2ed896d96ada1df8db8e2ae406
SHA256

43738906c630492486b01b50f6eaa5088e91d1036098c0999491d11dfc49949b
SHA512

f4c55297abfac77f59bbae2da9e7df070bdc7123cc329e05ee3602ff29e82176b458982ef1c6d9f0c18ec49bdaecd7714ffd7711720b897cb2c2081ecc9002f3
SSDEEP

1536:9ecON08CTFj2g0TE1FcRDt7l8FePBEI5dbeLdm89x4DawvteROtpMrewPQHvyk0V:9tON0fEgX277nBPpexx4OwF/W6wPQPzQ

Score

10^/10

xworm defense_evasion discovery execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

trip-thesaurus.gl.at.ply.gg:16715

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x000a000000023bbc-4.dat	family_xworm
behavioral1/memory/548-12-0x00000000007C0000-0x00000000007D8000-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
3988	powershell.exe
1212	powershell.exe
2740	powershell.exe
4516	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2024-01-10-18-19-14.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2024-01-10-18-19-14.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SecurityHealthSystray.lnk	2024-01-10-18-19-14.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SecurityHealthSystray.lnk	2024-01-10-18-19-14.exe

Executes dropped EXE 1 IoCs

pid	Process
548	2024-01-10-18-19-14.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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SecurityHealthSystray = "C:\\Users\\Admin\\AppData\\Roaming\\SecurityHealthSystray"	2024-01-10-18-19-14.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
13	ip-api.com

Obfuscated Files or Information: Command Obfuscation 1 TTPs
Adversaries may obfuscate content during command execution to impede detection.
defense_evasion

Command Obfuscation
T1027.010
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 2 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-01-10-18-19-14.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3556	powershell.exe
3556	powershell.exe
1212	powershell.exe
1212	powershell.exe
2740	powershell.exe
2740	powershell.exe
4516	powershell.exe
4516	powershell.exe
3988	powershell.exe
3988	powershell.exe
548	2024-01-10-18-19-14.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	548	2024-01-10-18-19-14.exe
Token: SeDebugPrivilege	3556	powershell.exe
Token: SeDebugPrivilege	1212	powershell.exe
Token: SeDebugPrivilege	2740	powershell.exe
Token: SeDebugPrivilege	4516	powershell.exe
Token: SeDebugPrivilege	3988	powershell.exe
Token: SeDebugPrivilege	548	2024-01-10-18-19-14.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
548	2024-01-10-18-19-14.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 3556	2032	2024-01-10-18-19-14.exe	83
PID 2032 wrote to memory of 3556	2032	2024-01-10-18-19-14.exe	83
PID 2032 wrote to memory of 3556	2032	2024-01-10-18-19-14.exe	83
PID 2032 wrote to memory of 548	2032	2024-01-10-18-19-14.exe	85
PID 2032 wrote to memory of 548	2032	2024-01-10-18-19-14.exe	85
PID 548 wrote to memory of 1212	548	2024-01-10-18-19-14.exe	88
PID 548 wrote to memory of 1212	548	2024-01-10-18-19-14.exe	88
PID 548 wrote to memory of 2740	548	2024-01-10-18-19-14.exe	90
PID 548 wrote to memory of 2740	548	2024-01-10-18-19-14.exe	90
PID 548 wrote to memory of 4516	548	2024-01-10-18-19-14.exe	92
PID 548 wrote to memory of 4516	548	2024-01-10-18-19-14.exe	92
PID 548 wrote to memory of 3988	548	2024-01-10-18-19-14.exe	94
PID 548 wrote to memory of 3988	548	2024-01-10-18-19-14.exe	94

C:\Users\Admin\AppData\Local\Temp\2024-01-10-18-19-14.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-10-18-19-14.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAGoAcQBsACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHIAYgByACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAGUAaQBiACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAHIAagBkACMAPgA="
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3556
- C:\Users\Admin\AppData\Roaming\2024-01-10-18-19-14.exe
  "C:\Users\Admin\AppData\Roaming\2024-01-10-18-19-14.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:548
- - 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\2024-01-10-18-19-14.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1212
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '2024-01-10-18-19-14.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2740
- - 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\SecurityHealthSystray'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4516
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SecurityHealthSystray'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3988

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

Obfuscated Files or Information

1

T1027

Command Obfuscation

1

T1027.010

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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\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
ff6b1feca449b8c9e7acd8bbf4f34079

SHA1
6c3f86a7c50806f7a1cc570b5c2d7b40bacb5c98

SHA256
fb0aba2df96470434a86db741e1563326bf67b3ad7b0b633e6730d336ac0ebd4

SHA512
bdc846809a5ea408ce154f7e48a541afe84031ac0729ca41eca99f266b5fcaf512d5cce4fb898a07f41e6f82c39b25e6907b34f0aaaefe2771f4c9399cb2491a

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

Filesize
944B

MD5
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
944B

MD5
5c8ea9d884103d067a1ba2e422a2b1ed

SHA1
3ddf0f71f84e1b595b6f8862c649445a6d188ed6

SHA256
d77147b11db5fdb60f2a0a1157944a3a59d713ff9996be33bd05d1e92fb2c28b

SHA512
8366f4756c2390a631d7083b03b40a335cd05ae5c302fe3512919200ac4980e8c6b94e2e9ce634ab75f6bfa06a851a23b29e43afef3ad58b1b70d3d6bc569aca

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_o2ucwv0d.vzm.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\2024-01-10-18-19-14.exe

Filesize
75KB

MD5
bfd3b2f73d58e818eb3e08ff9f29997b

SHA1
45f9cefc5f890bb251872ed89770369140786112

SHA256
ca4668757e95f08cc049a166a7e1f373e3ac001e68bd97b1c1aee568acf1e5c7

SHA512
685c838c4ab3eb3b74c018ea2e773b315c1554f59508835b1190f02627971be162b9fcb440bc4eae36a29bfb59917f885e6f567a6048bf28466b4e0ee93aa841

Download Submit
memory/548-48-0x000000001B4C0000-0x000000001B4D0000-memory.dmp

Filesize
64KB

Download
memory/548-11-0x00007FF8739D3000-0x00007FF8739D5000-memory.dmp

Filesize
8KB

Download
memory/548-12-0x00000000007C0000-0x00000000007D8000-memory.dmp

Filesize
96KB

Download
memory/548-112-0x000000001C1D0000-0x000000001C1DC000-memory.dmp

Filesize
48KB

Download
memory/548-111-0x000000001B4C0000-0x000000001B4D0000-memory.dmp

Filesize
64KB

Download
memory/1212-63-0x0000024BA03B0000-0x0000024BA03D2000-memory.dmp

Filesize
136KB

Download
memory/3556-20-0x0000000005830000-0x0000000005896000-memory.dmp

Filesize
408KB

Download
memory/3556-52-0x00000000074B0000-0x0000000007546000-memory.dmp

Filesize
600KB

Download
memory/3556-31-0x0000000005F00000-0x0000000005F1E000-memory.dmp

Filesize
120KB

Download
memory/3556-33-0x00000000064C0000-0x00000000064F2000-memory.dmp

Filesize
200KB

Download
memory/3556-35-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/3556-45-0x0000000006520000-0x000000000653E000-memory.dmp

Filesize
120KB

Download
memory/3556-34-0x0000000070590000-0x00000000705DC000-memory.dmp

Filesize
304KB

Download
memory/3556-46-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/3556-47-0x0000000006EF0000-0x0000000006F93000-memory.dmp

Filesize
652KB

Download
memory/3556-30-0x00000000058A0000-0x0000000005BF4000-memory.dmp

Filesize
3.3MB

Download
memory/3556-50-0x0000000007220000-0x000000000723A000-memory.dmp

Filesize
104KB

Download
memory/3556-49-0x0000000007870000-0x0000000007EEA000-memory.dmp

Filesize
6.5MB

Download
memory/3556-51-0x00000000072A0000-0x00000000072AA000-memory.dmp

Filesize
40KB

Download
memory/3556-32-0x0000000005F90000-0x0000000005FDC000-memory.dmp

Filesize
304KB

Download
memory/3556-53-0x0000000007420000-0x0000000007431000-memory.dmp

Filesize
68KB

Download
memory/3556-19-0x00000000057C0000-0x0000000005826000-memory.dmp

Filesize
408KB

Download
memory/3556-64-0x0000000007460000-0x000000000746E000-memory.dmp

Filesize
56KB

Download
memory/3556-65-0x0000000007470000-0x0000000007484000-memory.dmp

Filesize
80KB

Download
memory/3556-66-0x0000000007550000-0x000000000756A000-memory.dmp

Filesize
104KB

Download
memory/3556-67-0x00000000074A0000-0x00000000074A8000-memory.dmp

Filesize
32KB

Download
memory/3556-18-0x0000000004EB0000-0x0000000004ED2000-memory.dmp

Filesize
136KB

Download
memory/3556-16-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/3556-83-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/3556-17-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/3556-15-0x0000000005120000-0x0000000005748000-memory.dmp

Filesize
6.2MB

Download
memory/3556-14-0x0000000002570000-0x00000000025A6000-memory.dmp

Filesize
216KB

Download
memory/3556-13-0x000000007477E000-0x000000007477F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads