xworm | b86413527bbc9f5ba6240402aba7cd6d0413bc9ee7db1f02ec18426f18c60044

General

Target

DAVIDxPANEL.exe
Size

351KB
MD5

bdf4babc0504339255ab25c4550e373a
SHA1

08f6c30ea97cff716acce362c8c3b2629ec7d08c
SHA256

b86413527bbc9f5ba6240402aba7cd6d0413bc9ee7db1f02ec18426f18c60044
SHA512

97c058c8873b2146c91a3f3a21b653e70b001277203222f5ead6f142134b66e2be4a79ee87c9adf57b2fad56e2c354ece62115d36dd0e7f3e17cf459751c4178
SSDEEP

6144:jNHtr2hylad/y/MOsuplJ/y//////E////z4///////K//////onnnnnnnnnnq+1:jZtXlad/6mulJ/y//////E////z4///Z

Score

10^/10

xworm defense_evasion discovery execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

rates-sir.gl.at.ply.gg:9099

Attributes

Install_directory
%AppData%
install_file
Steam.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x000a000000023baf-4.dat	family_xworm
behavioral1/memory/1992-12-0x0000000000B20000-0x0000000000B7C000-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
1304	powershell.exe
3056	powershell.exe
4024	powershell.exe
988	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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	Steam.exe
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	DAVIDxPANEL.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
1992	Steam.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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Steam = "C:\\Users\\Admin\\AppData\\Roaming\\Steam.exe"	Steam.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
10	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	DAVIDxPANEL.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
1528	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
948	powershell.exe
948	powershell.exe
1304	powershell.exe
1304	powershell.exe
3056	powershell.exe
3056	powershell.exe
4024	powershell.exe
4024	powershell.exe
988	powershell.exe
988	powershell.exe
1992	Steam.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	1992	Steam.exe
Token: SeDebugPrivilege	948	powershell.exe
Token: SeDebugPrivilege	1304	powershell.exe
Token: SeDebugPrivilege	3056	powershell.exe
Token: SeDebugPrivilege	4024	powershell.exe
Token: SeDebugPrivilege	988	powershell.exe
Token: SeDebugPrivilege	1992	Steam.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1992	Steam.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 948	1736	DAVIDxPANEL.exe	84
PID 1736 wrote to memory of 948	1736	DAVIDxPANEL.exe	84
PID 1736 wrote to memory of 948	1736	DAVIDxPANEL.exe	84
PID 1736 wrote to memory of 1992	1736	DAVIDxPANEL.exe	86
PID 1736 wrote to memory of 1992	1736	DAVIDxPANEL.exe	86
PID 1992 wrote to memory of 1304	1992	Steam.exe	88
PID 1992 wrote to memory of 1304	1992	Steam.exe	88
PID 1992 wrote to memory of 3056	1992	Steam.exe	90
PID 1992 wrote to memory of 3056	1992	Steam.exe	90
PID 1992 wrote to memory of 4024	1992	Steam.exe	92
PID 1992 wrote to memory of 4024	1992	Steam.exe	92
PID 1992 wrote to memory of 988	1992	Steam.exe	94
PID 1992 wrote to memory of 988	1992	Steam.exe	94
PID 1992 wrote to memory of 1528	1992	Steam.exe	96
PID 1992 wrote to memory of 1528	1992	Steam.exe	96

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\DAVIDxPANEL.exe
"C:\Users\Admin\AppData\Local\Temp\DAVIDxPANEL.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHkAbABwACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHYAegBtACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAGMAbgBtACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAHoAbgBnACMAPgA="
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:948
- C:\Users\Admin\AppData\Roaming\Steam.exe
  "C:\Users\Admin\AppData\Roaming\Steam.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:1992
- - 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\Steam.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1304
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Steam.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3056
- - 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\Steam.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4024
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Steam.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:988
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Steam" /tr "C:\Users\Admin\AppData\Roaming\Steam.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1528

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

Obfuscated Files or Information

1

T1027

Command Obfuscation

1

T1027.010

Credential Access

Discovery

Query Registry

2

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
8f659389c6e21eb0c627fbae833500c7

SHA1
ae632f1e4af08587934ff168155b30e2b28d7475

SHA256
a12763453f79453dd8f25f0c90d001ffb5d409ec698491666c9f076c6bc60d8c

SHA512
f4849e0b1d6ab3d4dd054f590a359af8dd1b9d3df2ad78033ad1a59ebafb1ca96aa76fa9061a466d74e8e3266dc882818d79db47908b21ca3ef8be20e427d327

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

Filesize
18KB

MD5
87572e35a4e2e6321c66ec00d7995437

SHA1
b5b75c83362005a43b4693a17a3e62afc20a1558

SHA256
605a99ad8783e99e1dd4c355f317b5529f3f6aa00b2490d772aa7f0570c68d01

SHA512
e8a491915cb47c5f0beb68b23cd3c0d684d20a21384d61e4b74273d63f0790fc5823a65c9282adc8021b26c1774ee63fde4e2187db9247dbe20d6ecafd729d11

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

Filesize
944B

MD5
9b80cd7a712469a4c45fec564313d9eb

SHA1
6125c01bc10d204ca36ad1110afe714678655f2d

SHA256
5a9e4969c6cdb5d522c81ce55799effb7255c1b0a9966a936d1dc3ff8fe2112d

SHA512
ac280d2623c470c9dec94726a7af0612938723f3c7d60d727eb3c21f17be2f2049f97bc8303558be8b01f94406781ece0ada9a3bc51e930aff20bebb6ca17584

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

Filesize
944B

MD5
2d06ce10e4e5b9e174b5ebbdad300fad

SHA1
bcc1c231e22238cef02ae25331320060ada2f131

SHA256
87d1dd56f12a88907ba5aebca8d555443d6f77ed214497277cc8bcd31c669f2c

SHA512
38cfbeb59605854ae4fcfae8619a6b26bd916148acfb5636383672a3960b45ca41fed5c241f97465129e92eaf78c4c85dcf258f1ab501a2bf771287ce04f76a7

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yaolrep4.uh3.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
345KB

MD5
c8764c93e9cabbfaaa906f24e7b28cc1

SHA1
85b7f5c6e024d3f200abbaeca6d0db8b4dd276a2

SHA256
4e62e196ae6de4b1044188055a007c3f78eb878e791f9ede759e2c118a508948

SHA512
cce91c62fbcf54e04e1945511f9e84c6df3412ec4592f525e93db774e4106930930eb12c83e24d6c4d8c37a317c4ac4e276e18599d3a7a456e76d2fc127e9070

Download Submit
memory/948-44-0x00000000070F0000-0x000000000710E000-memory.dmp

Filesize
120KB

Download
memory/948-49-0x0000000007AF0000-0x000000000816A000-memory.dmp

Filesize
6.5MB

Download
memory/948-19-0x0000000005460000-0x00000000054C6000-memory.dmp

Filesize
408KB

Download
memory/948-20-0x00000000054D0000-0x0000000005536000-memory.dmp

Filesize
408KB

Download
memory/948-15-0x0000000005540000-0x0000000005B68000-memory.dmp

Filesize
6.2MB

Download
memory/948-30-0x0000000005B70000-0x0000000005EC4000-memory.dmp

Filesize
3.3MB

Download
memory/948-31-0x0000000006180000-0x000000000619E000-memory.dmp

Filesize
120KB

Download
memory/948-32-0x0000000006210000-0x000000000625C000-memory.dmp

Filesize
304KB

Download
memory/948-34-0x00000000704B0000-0x00000000704FC000-memory.dmp

Filesize
304KB

Download
memory/948-33-0x0000000007130000-0x0000000007162000-memory.dmp

Filesize
200KB

Download
memory/948-45-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/948-16-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/948-46-0x0000000007170000-0x0000000007213000-memory.dmp

Filesize
652KB

Download
memory/948-47-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/948-13-0x00000000746BE000-0x00000000746BF000-memory.dmp

Filesize
4KB

Download
memory/948-18-0x00000000052C0000-0x00000000052E2000-memory.dmp

Filesize
136KB

Download
memory/948-50-0x00000000074A0000-0x00000000074BA000-memory.dmp

Filesize
104KB

Download
memory/948-51-0x0000000007510000-0x000000000751A000-memory.dmp

Filesize
40KB

Download
memory/948-52-0x0000000007730000-0x00000000077C6000-memory.dmp

Filesize
600KB

Download
memory/948-53-0x00000000076A0000-0x00000000076B1000-memory.dmp

Filesize
68KB

Download
memory/948-54-0x00000000076E0000-0x00000000076EE000-memory.dmp

Filesize
56KB

Download
memory/948-55-0x00000000076F0000-0x0000000007704000-memory.dmp

Filesize
80KB

Download
memory/948-56-0x00000000077D0000-0x00000000077EA000-memory.dmp

Filesize
104KB

Download
memory/948-57-0x0000000007720000-0x0000000007728000-memory.dmp

Filesize
32KB

Download
memory/948-60-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/948-14-0x0000000002BA0000-0x0000000002BD6000-memory.dmp

Filesize
216KB

Download
memory/948-17-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/1304-70-0x000001BBFFAA0000-0x000001BBFFAC2000-memory.dmp

Filesize
136KB

Download
memory/1992-48-0x000000001B930000-0x000000001B940000-memory.dmp

Filesize
64KB

Download
memory/1992-12-0x0000000000B20000-0x0000000000B7C000-memory.dmp

Filesize
368KB

Download
memory/1992-11-0x00007FF9FF643000-0x00007FF9FF645000-memory.dmp

Filesize
8KB

Download
memory/1992-109-0x000000001B930000-0x000000001B940000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads