xworm | 95e5b66131e63d29c869dec3213d170689aed33f3df2ee0e52de61ad6add1f4e

General

Target

spoofer.exe
Size

69KB
MD5

3d4aee4d0038725b015d28e56770bbf9
SHA1

82c009d268a3695b76b4a32229089323a3c14f14
SHA256

95e5b66131e63d29c869dec3213d170689aed33f3df2ee0e52de61ad6add1f4e
SHA512

2d658a5a96866ebd21948dbec7305af78829fc23fd5f6e9fe980f1ed4a803f953c4a181197bc8dc1d8e970bc45db9a1930af6111933414a9621654864d567817
SSDEEP

1536:Y2busqfcOZYTe23/kJ+rbLU8C3dbCab4mpcVM/d1pY6YnOc0CvvC4Gy:a5ekqL6bCaUMDknObs/Gy

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

rate-motel.gl.at.ply.gg:26173

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/628-1-0x0000000000AA0000-0x0000000000AB8000-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
2644	powershell.exe
1192	powershell.exe
4504	powershell.exe
3792	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	spoofer.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SYSTEM.lnk	spoofer.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SYSTEM.lnk	spoofer.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
12	ip-api.com

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
2644	powershell.exe
2644	powershell.exe
1192	powershell.exe
1192	powershell.exe
4504	powershell.exe
4504	powershell.exe
3792	powershell.exe
3792	powershell.exe
628	spoofer.exe
628	spoofer.exe
628	spoofer.exe
628	spoofer.exe
628	spoofer.exe
628	spoofer.exe
628	spoofer.exe
628	spoofer.exe
628	spoofer.exe
628	spoofer.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	628	spoofer.exe
Token: SeDebugPrivilege	2644	powershell.exe
Token: SeDebugPrivilege	1192	powershell.exe
Token: SeDebugPrivilege	4504	powershell.exe
Token: SeDebugPrivilege	3792	powershell.exe
Token: SeDebugPrivilege	628	spoofer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
628	spoofer.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 628 wrote to memory of 2644	628	spoofer.exe	87
PID 628 wrote to memory of 2644	628	spoofer.exe	87
PID 628 wrote to memory of 1192	628	spoofer.exe	89
PID 628 wrote to memory of 1192	628	spoofer.exe	89
PID 628 wrote to memory of 4504	628	spoofer.exe	91
PID 628 wrote to memory of 4504	628	spoofer.exe	91
PID 628 wrote to memory of 3792	628	spoofer.exe	93
PID 628 wrote to memory of 3792	628	spoofer.exe	93

C:\Users\Admin\AppData\Local\Temp\spoofer.exe
"C:\Users\Admin\AppData\Local\Temp\spoofer.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:628
- 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\spoofer.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2644
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'spoofer.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1192
- 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\SYSTEM'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4504
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SYSTEM'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
944B

MD5
75d224e238a397659d8e5cf458a41143

SHA1
d182d16283d3d864a2e328b677551428c29ad6df

SHA256
6a98fa5e6c5b77722f2bd8c855fd14d6bf545fc35b292252d1dc136b89ed2fee

SHA512
3477f3b4182ffdccc817de4242c8fcba706c193a0de5170cd023f8df3d330487d7e372556524b5a0fe1df56de40923700f3f8368eadf6601970e347cbcf078cc

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

Filesize
944B

MD5
43d7e72204b4e5479f89d78e8e78adcf

SHA1
377496e07c5986b6eaa5edce01b9159c5b1c0f02

SHA256
93a2603c86dfb949448f9b7b13c834f5f902f59e99dfb818945c8a1afd6e2844

SHA512
9d61a50066603d5ddb6dc8aeb9b012c58d1070659bb24ed8706fe9e93c798557ef83ad282ad14caa0c5ff98ab1c7a1ec201f720f5a5ebae21ef712800edfec17

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eehhbfnu.4fg.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/628-1-0x0000000000AA0000-0x0000000000AB8000-memory.dmp

Filesize
96KB

Download
memory/628-2-0x00007FF955030000-0x00007FF955AF1000-memory.dmp

Filesize
10.8MB

Download
memory/628-0-0x00007FF955033000-0x00007FF955035000-memory.dmp

Filesize
8KB

Download
memory/628-57-0x000000001B770000-0x000000001B77C000-memory.dmp

Filesize
48KB

Download
memory/628-56-0x00007FF955030000-0x00007FF955AF1000-memory.dmp

Filesize
10.8MB

Download
memory/2644-3-0x00007FF955030000-0x00007FF955AF1000-memory.dmp

Filesize
10.8MB

Download
memory/2644-18-0x00007FF955030000-0x00007FF955AF1000-memory.dmp

Filesize
10.8MB

Download
memory/2644-15-0x00007FF955030000-0x00007FF955AF1000-memory.dmp

Filesize
10.8MB

Download
memory/2644-14-0x00007FF955030000-0x00007FF955AF1000-memory.dmp

Filesize
10.8MB

Download
memory/2644-13-0x0000024A6C1B0000-0x0000024A6C1D2000-memory.dmp

Filesize
136KB

Download

Analysis

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