xworm | dcf58f42cfc14a42194c86488b96c8a3e40805af429098aa3df2a1d7c00a056a

Reason

Machine shutdown

General

Target

Client.exe
Size

39KB
MD5

2a0159c2f903f6f9b6fa99945b192390
SHA1

c9097395a47d735ac81170a660150ae8619d808f
SHA256

dcf58f42cfc14a42194c86488b96c8a3e40805af429098aa3df2a1d7c00a056a
SHA512

00607739253604934f1db628297a303fcd49855c49fa990f4a4a92b28e5b4d15f4a6595b233a3ed34405947c804abfd31b9db82d853765848f2bc4122c74a301
SSDEEP

768:UoDpCRKmug2wXiyuFR7/c2Caf6F9bcJ5/4D06chOOJi0W:UUUNXiyuX/cPafG9bO5/H6csO00W

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

23.ip.gl.ply.gg:51353

<Xwormmm>:1

Mutex

hJlsBGJd3N4Pi4wz

Attributes

Install_directory
%LocalAppData%
install_file
svchost.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/4500-1-0x0000000000800000-0x0000000000810000-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
3036	powershell.exe
4632	powershell.exe
2824	powershell.exe
4480	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	Client.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	Client.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-1-5-21-3973800497-2716210218-310192997-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Local\\svchost.exe"	Client.exe

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
1668	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3036	powershell.exe
3036	powershell.exe
4632	powershell.exe
4632	powershell.exe
2824	powershell.exe
2824	powershell.exe
4480	powershell.exe
4480	powershell.exe
4500	Client.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4500	Client.exe
Token: SeDebugPrivilege	3036	powershell.exe
Token: SeDebugPrivilege	4632	powershell.exe
Token: SeDebugPrivilege	2824	powershell.exe
Token: SeDebugPrivilege	4480	powershell.exe
Token: SeDebugPrivilege	4500	Client.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4500	Client.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4500 wrote to memory of 3036	4500	Client.exe	80
PID 4500 wrote to memory of 3036	4500	Client.exe	80
PID 4500 wrote to memory of 4632	4500	Client.exe	82
PID 4500 wrote to memory of 4632	4500	Client.exe	82
PID 4500 wrote to memory of 2824	4500	Client.exe	84
PID 4500 wrote to memory of 2824	4500	Client.exe	84
PID 4500 wrote to memory of 4480	4500	Client.exe	86
PID 4500 wrote to memory of 4480	4500	Client.exe	86
PID 4500 wrote to memory of 1668	4500	Client.exe	88
PID 4500 wrote to memory of 1668	4500	Client.exe	88

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\Client.exe
"C:\Users\Admin\AppData\Local\Temp\Client.exe"
1⤵
- 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:4500
- 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\Client.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3036
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Client.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4632
- 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\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2824
- 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:4480
- 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\Local\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1668

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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
6903d57eed54e89b68ebb957928d1b99

SHA1
fade011fbf2e4bc044d41e380cf70bd6a9f73212

SHA256
36cbb00b016c9f97645fb628ef72b524dfbdf6e08d626e5c837bbbb9075dcb52

SHA512
c192ea9810fd22de8378269235c1035aa1fe1975a53c876fe4a7acc726c020f94773c21e4e4771133f9fcedb0209f0a5324c594c1db5b28fe1b27644db4fdc9e

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

Filesize
944B

MD5
4a7f03a7ad1cae046d8ceac04256e5ae

SHA1
ef0bf767c91cba32b33c0b48f74f5eb153ae43d3

SHA256
e8aa3162f519e3670b0fc79dfbeeca68ea2b65a17900cf3aafc6a48de3296d60

SHA512
382a91848be121734bce9f533bcb4747e5f21db5b1ea5dfc8cc567005f5be0f1dcc73a55516b83feb931cdc90601ed4d36fb890687f08e1056ff98da2365f01d

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

Filesize
944B

MD5
8b1394bd98c93d68bb4151a8c8c4015b

SHA1
3c5695c58a2186c1a13e70d8de9343f660429a91

SHA256
3d46aa2ace9880ec7c1eb00581078beb3ca2107f343654aa5d5e250c97bf67d8

SHA512
b7fe198d72b322dd2b2badf038821af9ceccae8b506f7475d8c253ea40aef9b0ba50dae223d5251d72a14aec81d025d394d3277576125d03f3e4ec393459a607

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hrnhxdnr.dh2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3036-13-0x00007FFA75D50000-0x00007FFA76812000-memory.dmp

Filesize
10.8MB

Download
memory/3036-14-0x00007FFA75D50000-0x00007FFA76812000-memory.dmp

Filesize
10.8MB

Download
memory/3036-17-0x00007FFA75D50000-0x00007FFA76812000-memory.dmp

Filesize
10.8MB

Download
memory/3036-18-0x00007FFA75D50000-0x00007FFA76812000-memory.dmp

Filesize
10.8MB

Download
memory/3036-12-0x00007FFA75D50000-0x00007FFA76812000-memory.dmp

Filesize
10.8MB

Download
memory/3036-11-0x00007FFA75D50000-0x00007FFA76812000-memory.dmp

Filesize
10.8MB

Download
memory/3036-7-0x0000024A14BA0000-0x0000024A14BC2000-memory.dmp

Filesize
136KB

Download
memory/4500-0-0x00007FFA75D53000-0x00007FFA75D55000-memory.dmp

Filesize
8KB

Download
memory/4500-1-0x0000000000800000-0x0000000000810000-memory.dmp

Filesize
64KB

Download
memory/4500-50-0x00007FFA75D53000-0x00007FFA75D55000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads