xworm | 54a6342541cb80a9e801ce48de755ab5dfb1931e2afdf9ae55714f502c9b09e4

General

Target

33333.exe
Size

90KB
MD5

e10791416cbe4bd094d22476f1e0d067
SHA1

9e86515eb7e5b3fd7adfc52db9508adc61c29cd8
SHA256

54a6342541cb80a9e801ce48de755ab5dfb1931e2afdf9ae55714f502c9b09e4
SHA512

34cdc3c5f152dc27e1ff07311264fcebb250e8125d3a4cf7a02797a16bb48dea4ecfc3de88d46a439481ca80d54fe5f0e4964206a5a00bf665a0bdeac5df9e9b
SSDEEP

1536:K+yL5gAxHwKKXHWsjTv5RHWvcbJMP7CesjBD6DrWWmPOrVYTSdBc:el9OWs3WkbJsTs+CPOrVWuc

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

virtual-pointed.gl.at.ply.gg:17000

Attributes

Install_directory
%AppData%
install_file
svchost.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4612-1-0x0000000000950000-0x000000000096C000-memory.dmp	family_xworm
behavioral2/files/0x000c000000023bca-58.dat	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
4004	powershell.exe
3192	powershell.exe
2276	powershell.exe
4964	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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	33333.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	33333.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	33333.exe

Executes dropped EXE 3 IoCs

pid	Process
4772	svchost.exe
1688	svchost.exe
4980	svchost.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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	33333.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

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

System Information Discovery
T1082

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
224	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4004	powershell.exe
4004	powershell.exe
3192	powershell.exe
3192	powershell.exe
2276	powershell.exe
2276	powershell.exe
4964	powershell.exe
4964	powershell.exe
4612	33333.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	4612	33333.exe
Token: SeDebugPrivilege	4004	powershell.exe
Token: SeDebugPrivilege	3192	powershell.exe
Token: SeDebugPrivilege	2276	powershell.exe
Token: SeDebugPrivilege	4964	powershell.exe
Token: SeDebugPrivilege	4612	33333.exe
Token: SeDebugPrivilege	4772	svchost.exe
Token: SeDebugPrivilege	1688	svchost.exe
Token: SeDebugPrivilege	4980	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4612	33333.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4612 wrote to memory of 4004	4612	33333.exe	83
PID 4612 wrote to memory of 4004	4612	33333.exe	83
PID 4612 wrote to memory of 3192	4612	33333.exe	85
PID 4612 wrote to memory of 3192	4612	33333.exe	85
PID 4612 wrote to memory of 2276	4612	33333.exe	87
PID 4612 wrote to memory of 2276	4612	33333.exe	87
PID 4612 wrote to memory of 4964	4612	33333.exe	89
PID 4612 wrote to memory of 4964	4612	33333.exe	89
PID 4612 wrote to memory of 224	4612	33333.exe	91
PID 4612 wrote to memory of 224	4612	33333.exe	91

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\33333.exe
"C:\Users\Admin\AppData\Local\Temp\33333.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:4612
- 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\33333.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4004
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '33333.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3192
- 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\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2276
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4964
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:224

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4772

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1688

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4980

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

2

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\CLR_v4.0\UsageLogs\svchost.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

Filesize
944B

MD5
2e907f77659a6601fcc408274894da2e

SHA1
9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

SHA256
385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

SHA512
34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

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\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
63792eb96ecd38bb9f8dd3006453d84a

SHA1
3a495aad0aabaf57043cfed07298e5714d8b1046

SHA256
6e6a19ba683ca024b866a4c20dc5e9714870d945cd67a77e27f1dca1c84982c8

SHA512
a61a3ba9c45c2011b9729cb5ced0c57543f889d19e9ba81b35f0158d13677d866545891c8839763c95d35d4f940fdf7f05f786ffab3a7372bc7dc874e7eb9819

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_u2fhf0mo.2x2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
90KB

MD5
e10791416cbe4bd094d22476f1e0d067

SHA1
9e86515eb7e5b3fd7adfc52db9508adc61c29cd8

SHA256
54a6342541cb80a9e801ce48de755ab5dfb1931e2afdf9ae55714f502c9b09e4

SHA512
34cdc3c5f152dc27e1ff07311264fcebb250e8125d3a4cf7a02797a16bb48dea4ecfc3de88d46a439481ca80d54fe5f0e4964206a5a00bf665a0bdeac5df9e9b

Download Submit
memory/4004-4-0x00007FFFCD2F0000-0x00007FFFCDDB1000-memory.dmp

Filesize
10.8MB

Download
memory/4004-15-0x00007FFFCD2F0000-0x00007FFFCDDB1000-memory.dmp

Filesize
10.8MB

Download
memory/4004-18-0x00007FFFCD2F0000-0x00007FFFCDDB1000-memory.dmp

Filesize
10.8MB

Download
memory/4004-14-0x0000018CA3740000-0x0000018CA3762000-memory.dmp

Filesize
136KB

Download
memory/4004-3-0x00007FFFCD2F0000-0x00007FFFCDDB1000-memory.dmp

Filesize
10.8MB

Download
memory/4612-0-0x00007FFFCD2F3000-0x00007FFFCD2F5000-memory.dmp

Filesize
8KB

Download
memory/4612-2-0x00007FFFCD2F0000-0x00007FFFCDDB1000-memory.dmp

Filesize
10.8MB

Download
memory/4612-57-0x00007FFFCD2F0000-0x00007FFFCDDB1000-memory.dmp

Filesize
10.8MB

Download
memory/4612-1-0x0000000000950000-0x000000000096C000-memory.dmp

Filesize
112KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads