xworm | 6d5ff2230c713e9372d23989c3ea247d814ffc6f19380be86f7bccf3c0b6ff91

General

Target

WaveWindowsCracked.exe
Size

7.6MB
MD5

1aec1baab610e71d2dd83ddb08d9c49a
SHA1

47789c92be6ce830faa926acb1969086d410e4d4
SHA256

e2bfe1a9a590aab1f7572309b45c0cf88558f9c3463acb550d30e24f47132d1c
SHA512

2435a57bd91dae06c62ca1d209091f3ce4f3de9012eb80b901e89a62e60b28d45e5c94d018c5af5a831b3ff8d28e4bfc6e0c487125be14926a62b970e459690a
SSDEEP

196608:IUhZUvqevevx2QtiFX2PTiiXIeMeZ4SZCqL1:BhOvaZ+X2PG6Iep6SZCy

Score

10^/10

xworm discovery execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

stewiegriffin-37537.portmap.host:37537

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral3/files/0x001a00000002ab58-17.dat	family_xworm
behavioral3/memory/1352-25-0x0000000000B40000-0x0000000000B5C000-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
704	powershell.exe
2960	powershell.exe
2432	powershell.exe
1736	powershell.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 11 IoCs

pid	Process
2072	WaveWindows.exe
1352	DriverUpdt.exe
1116	DriverUpdt
1128	DriverUpdt
1576	DriverUpdt
1896	DriverUpdt
3284	DriverUpdt
1468	DriverUpdt
3796	DriverUpdt
2576	DriverUpdt
2188	DriverUpdt

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-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Windows\CurrentVersion\Run\DriverUpdt = "C:\\Users\\Admin\\AppData\\Roaming\\DriverUpdt"	DriverUpdt.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
1	ip-api.com

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
644	2072	WerFault.exe	79

System Location Discovery: System Language Discovery 1 TTPs 1 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	WaveWindows.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1476	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2072	WaveWindows.exe
704	powershell.exe
704	powershell.exe
2960	powershell.exe
2960	powershell.exe
2432	powershell.exe
2432	powershell.exe
1736	powershell.exe
1736	powershell.exe
1352	DriverUpdt.exe

Suspicious use of AdjustPrivilegeToken 16 IoCs

description	pid	Process
Token: SeDebugPrivilege	1352	DriverUpdt.exe
Token: SeDebugPrivilege	2072	WaveWindows.exe
Token: SeDebugPrivilege	704	powershell.exe
Token: SeDebugPrivilege	2960	powershell.exe
Token: SeDebugPrivilege	2432	powershell.exe
Token: SeDebugPrivilege	1736	powershell.exe
Token: SeDebugPrivilege	1352	DriverUpdt.exe
Token: SeDebugPrivilege	1116	DriverUpdt
Token: SeDebugPrivilege	1128	DriverUpdt
Token: SeDebugPrivilege	1576	DriverUpdt
Token: SeDebugPrivilege	1896	DriverUpdt
Token: SeDebugPrivilege	3284	DriverUpdt
Token: SeDebugPrivilege	1468	DriverUpdt
Token: SeDebugPrivilege	3796	DriverUpdt
Token: SeDebugPrivilege	2576	DriverUpdt
Token: SeDebugPrivilege	2188	DriverUpdt

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1352	DriverUpdt.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4908 wrote to memory of 2072	4908	WaveWindowsCracked.exe	79
PID 4908 wrote to memory of 2072	4908	WaveWindowsCracked.exe	79
PID 4908 wrote to memory of 2072	4908	WaveWindowsCracked.exe	79
PID 4908 wrote to memory of 1352	4908	WaveWindowsCracked.exe	80
PID 4908 wrote to memory of 1352	4908	WaveWindowsCracked.exe	80
PID 1352 wrote to memory of 704	1352	DriverUpdt.exe	85
PID 1352 wrote to memory of 704	1352	DriverUpdt.exe	85
PID 1352 wrote to memory of 2960	1352	DriverUpdt.exe	87
PID 1352 wrote to memory of 2960	1352	DriverUpdt.exe	87
PID 1352 wrote to memory of 2432	1352	DriverUpdt.exe	89
PID 1352 wrote to memory of 2432	1352	DriverUpdt.exe	89
PID 1352 wrote to memory of 1736	1352	DriverUpdt.exe	91
PID 1352 wrote to memory of 1736	1352	DriverUpdt.exe	91
PID 1352 wrote to memory of 1476	1352	DriverUpdt.exe	93
PID 1352 wrote to memory of 1476	1352	DriverUpdt.exe	93

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\WaveWindowsCracked.exe
"C:\Users\Admin\AppData\Local\Temp\WaveWindowsCracked.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4908
- C:\Users\Admin\AppData\Roaming\WaveWindows.exe
  "C:\Users\Admin\AppData\Roaming\WaveWindows.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2072
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2072 -s 1112
    3⤵
    - Program crash
    PID:644
- C:\Users\Admin\AppData\Roaming\DriverUpdt.exe
  "C:\Users\Admin\AppData\Roaming\DriverUpdt.exe"
  2⤵
  - 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:1352
- - 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\DriverUpdt.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:704
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'DriverUpdt.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2960
- - 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\DriverUpdt'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2432
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'DriverUpdt'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1736
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "DriverUpdt" /tr "C:\Users\Admin\AppData\Roaming\DriverUpdt"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2072 -ip 2072
1⤵
PID:276

C:\Users\Admin\AppData\Roaming\DriverUpdt
C:\Users\Admin\AppData\Roaming\DriverUpdt
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1116

C:\Users\Admin\AppData\Roaming\DriverUpdt
C:\Users\Admin\AppData\Roaming\DriverUpdt
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1128

C:\Users\Admin\AppData\Roaming\DriverUpdt
C:\Users\Admin\AppData\Roaming\DriverUpdt
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1576

C:\Users\Admin\AppData\Roaming\DriverUpdt
C:\Users\Admin\AppData\Roaming\DriverUpdt
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1896

C:\Users\Admin\AppData\Roaming\DriverUpdt
C:\Users\Admin\AppData\Roaming\DriverUpdt
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3284

C:\Users\Admin\AppData\Roaming\DriverUpdt
C:\Users\Admin\AppData\Roaming\DriverUpdt
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1468

C:\Users\Admin\AppData\Roaming\DriverUpdt
C:\Users\Admin\AppData\Roaming\DriverUpdt
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3796

C:\Users\Admin\AppData\Roaming\DriverUpdt
C:\Users\Admin\AppData\Roaming\DriverUpdt
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2576

C:\Users\Admin\AppData\Roaming\DriverUpdt
C:\Users\Admin\AppData\Roaming\DriverUpdt
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2188

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

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\DriverUpdt.log

Filesize
654B

MD5
2cbbb74b7da1f720b48ed31085cbd5b8

SHA1
79caa9a3ea8abe1b9c4326c3633da64a5f724964

SHA256
e31b18f21621d9983bfdf1ea3e53884a9d58b8ffd79e0e5790da6f3a81a8b9d3

SHA512
ecf02d5240e0c1c005d3ab393aa7eff62bd498c2db5905157e2bf6d29e1b663228a9583950842629d1a4caef404c8941a0c7799b1a3bd1eb890a09fdb7efcff9

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

Filesize
2KB

MD5
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

Filesize
944B

MD5
1a9fa92a4f2e2ec9e244d43a6a4f8fb9

SHA1
9910190edfaccece1dfcc1d92e357772f5dae8f7

SHA256
0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888

SHA512
5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64

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

Filesize
944B

MD5
8cb7f4b4ab204cacd1af6b29c2a2042c

SHA1
244540c38e33eac05826d54282a0bfa60340d6a1

SHA256
4994013dabe4f131d401879278eee147add6349124ea6452358dca7e2344c7a6

SHA512
7651cb6863a425840db610253151e271d3e8da26a8c633ce484247266fa226792ecb84b9578df3ab17fef84a5dfcad417b63a7df59c9650a907e08d59b91dd6e

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

Filesize
944B

MD5
cef328ddb1ee8916e7a658919323edd8

SHA1
a676234d426917535e174f85eabe4ef8b88256a5

SHA256
a1b5b7ada8ebc910f20f91ada3991d3321104e9da598c958b1edac9f9aca0e90

SHA512
747400c20ca5b5fd1b54bc24e75e6a78f15af61df263be932d2ee7b2f34731c2de8ce03b2706954fb098c1ac36f0b761cf37e418738fa91f2a8ea78572f545cb

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_c3sxo1a2.lyj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
84KB

MD5
65485b0475b6c8a3b4f35bba541938a6

SHA1
28e6e6cd2ebf8a9fdffeb4aeba13b70ea7ea03a3

SHA256
c6740ee5c8afdc2c7be42fb03ab5a346925efc6ac785fe7d68dec2d5f05d276b

SHA512
034303ee48132b80da79e54a6077676cfd436ef869493a11a27c29dc7cb730fd2ce902320d554a0cde81fc0a06f6c56efa5c170a1360906ec9fa7fd101c3706d

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

Filesize
7.5MB

MD5
cd34bf9c69f229818a4c9301e51435eb

SHA1
bfb95a5dc5d777e2b5940f354da271fed397adb2

SHA256
3b217daf815ced5cf1087d1f408fc3833c9d80a1e3e25b3f9041698b9e34216f

SHA512
2c68b211a4c8c144713cbe99214e8dc33d3ef6c1f244af4a313ff5ab93d946a4281d404b02c5f66ef5652071279649082877eaa728912a0e769c2c848e0a8e6b

Download Submit
memory/704-43-0x00000236C0A20000-0x00000236C0A42000-memory.dmp

Filesize
136KB

Download
memory/1352-26-0x00007FFC85050000-0x00007FFC85B12000-memory.dmp

Filesize
10.8MB

Download
memory/1352-35-0x000000001B8D0000-0x000000001B8E0000-memory.dmp

Filesize
64KB

Download
memory/1352-25-0x0000000000B40000-0x0000000000B5C000-memory.dmp

Filesize
112KB

Download
memory/1352-37-0x000000001B8D0000-0x000000001B8E0000-memory.dmp

Filesize
64KB

Download
memory/1352-36-0x00007FFC85050000-0x00007FFC85B12000-memory.dmp

Filesize
10.8MB

Download
memory/2072-27-0x000000007436E000-0x000000007436F000-memory.dmp

Filesize
4KB

Download
memory/2072-34-0x0000000074360000-0x0000000074B11000-memory.dmp

Filesize
7.7MB

Download
memory/2072-33-0x0000000005A30000-0x0000000005AA6000-memory.dmp

Filesize
472KB

Download
memory/2072-32-0x0000000005B30000-0x0000000005C16000-memory.dmp

Filesize
920KB

Download
memory/2072-31-0x0000000002E10000-0x0000000002E34000-memory.dmp

Filesize
144KB

Download
memory/2072-30-0x00000000054E0000-0x000000000552A000-memory.dmp

Filesize
296KB

Download
memory/2072-29-0x0000000074360000-0x0000000074B11000-memory.dmp

Filesize
7.7MB

Download
memory/2072-28-0x00000000001A0000-0x000000000092C000-memory.dmp

Filesize
7.5MB

Download
memory/4908-0-0x00007FFC85053000-0x00007FFC85055000-memory.dmp

Filesize
8KB

Download
memory/4908-1-0x0000000000570000-0x0000000000D16000-memory.dmp

Filesize
7.6MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads