xworm | f6df5e6ed88075cec7dfce8897314885d038e92b359edb0a2cc172b7f86749f7

General

Target

XClient.exe
Size

61KB
MD5

1f2d7a5deda5d3d47b028f3e0820bd84
SHA1

d73ae116a5eed7a7fadbff2b046336cc5e21b28f
SHA256

f6df5e6ed88075cec7dfce8897314885d038e92b359edb0a2cc172b7f86749f7
SHA512

9c9b02585fb24807fe830982009b89180226dde459b1e72a8fa78dc5b77052c5f203325eb9be3298fc376c9f0a0b43cbcbfc63ef57d493498b6b4966a3476cd6
SSDEEP

1536:7YNqBkIQDjzm1G4nCPx5LTnBjkbvtN1TPe4WmjV6FYO7v/ah:7Yc0zm1GOCPzLrBjkbvnKwO7nI

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

sponef159-35748.portmap.host:35748

Attributes

Install_directory
%AppData%
install_file
svchost.exe
telegram
https://api.telegram.org/bot7508868671:AAG6XIOhz39IrQIUnjub1TKVOVZHfdjpsvM/sendMessage?chat_id=6094400048

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/980-1-0x0000000000BB0000-0x0000000000BC6000-memory.dmp	family_xworm
behavioral2/files/0x002300000002aa82-57.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
4536	powershell.exe
1532	powershell.exe
5084	powershell.exe
3588	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	XClient.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	XClient.exe

Executes dropped EXE 1 IoCs

pid	Process
3164	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-1-5-21-556537508-2730415644-482548075-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	XClient.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
820	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1532	powershell.exe
1532	powershell.exe
5084	powershell.exe
5084	powershell.exe
3588	powershell.exe
3588	powershell.exe
4536	powershell.exe
4536	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	980	XClient.exe
Token: SeDebugPrivilege	1532	powershell.exe
Token: SeDebugPrivilege	5084	powershell.exe
Token: SeDebugPrivilege	3588	powershell.exe
Token: SeDebugPrivilege	4536	powershell.exe
Token: SeDebugPrivilege	980	XClient.exe
Token: SeDebugPrivilege	3164	svchost.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 980 wrote to memory of 1532	980	XClient.exe	77
PID 980 wrote to memory of 1532	980	XClient.exe	77
PID 980 wrote to memory of 5084	980	XClient.exe	79
PID 980 wrote to memory of 5084	980	XClient.exe	79
PID 980 wrote to memory of 3588	980	XClient.exe	81
PID 980 wrote to memory of 3588	980	XClient.exe	81
PID 980 wrote to memory of 4536	980	XClient.exe	83
PID 980 wrote to memory of 4536	980	XClient.exe	83
PID 980 wrote to memory of 820	980	XClient.exe	85
PID 980 wrote to memory of 820	980	XClient.exe	85

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\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:980
- 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\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1532
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5084
- 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:3588
- 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:4536
- 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:820

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3164

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

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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
e3840d9bcedfe7017e49ee5d05bd1c46

SHA1
272620fb2605bd196df471d62db4b2d280a363c6

SHA256
3ac83e70415b9701ee71a4560232d7998e00c3db020fde669eb01b8821d2746f

SHA512
76adc88ab3930acc6b8b7668e2de797b8c00edcfc41660ee4485259c72a8adf162db62c2621ead5a9950f12bfe8a76ccab79d02fda11860afb0e217812cac376

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

Filesize
944B

MD5
34e3230cb2131270db1af79fb3d57752

SHA1
21434dd7cf3c4624226b89f404fd7982825f8ac6

SHA256
0f162f27548a84db1638bcf46d03661b5bcb3032e765fafdb597cc107639ba39

SHA512
3756cb01e82dbda681b562eae74d0b8ef8b3787b126119a51a92c51a78204a7805b9bdd60c00c50a3be23b843e78bb153b656540767069f739ce421b9bc02335

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

Filesize
944B

MD5
1b97141c46911b9a87daafdbe0ee275b

SHA1
538f0853fdf5ea6ad37b98154d9ffc5a95f35574

SHA256
24102236f494233a28e48151a96cf8a34630f68904451f532aa44d4232c29d68

SHA512
a1d2d51b47d5ea51e3db17d697dbe9ad768d32ebea1127efaed5c533e5c4a111b4f5b9f3519de7e195e236e16a88f6d7f23acc4ac7e7d5a8d643fcf4b55834b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_joncdwtb.qzg.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
61KB

MD5
1f2d7a5deda5d3d47b028f3e0820bd84

SHA1
d73ae116a5eed7a7fadbff2b046336cc5e21b28f

SHA256
f6df5e6ed88075cec7dfce8897314885d038e92b359edb0a2cc172b7f86749f7

SHA512
9c9b02585fb24807fe830982009b89180226dde459b1e72a8fa78dc5b77052c5f203325eb9be3298fc376c9f0a0b43cbcbfc63ef57d493498b6b4966a3476cd6

Download Submit
memory/980-1-0x0000000000BB0000-0x0000000000BC6000-memory.dmp

Filesize
88KB

Download
memory/980-0-0x00007FFFEFC43000-0x00007FFFEFC45000-memory.dmp

Filesize
8KB

Download
memory/980-56-0x00007FFFEFC40000-0x00007FFFF0702000-memory.dmp

Filesize
10.8MB

Download
memory/980-55-0x00007FFFEFC43000-0x00007FFFEFC45000-memory.dmp

Filesize
8KB

Download
memory/980-54-0x00007FFFEFC40000-0x00007FFFF0702000-memory.dmp

Filesize
10.8MB

Download
memory/1532-11-0x00007FFFEFC40000-0x00007FFFF0702000-memory.dmp

Filesize
10.8MB

Download
memory/1532-18-0x00007FFFEFC40000-0x00007FFFF0702000-memory.dmp

Filesize
10.8MB

Download
memory/1532-15-0x00007FFFEFC40000-0x00007FFFF0702000-memory.dmp

Filesize
10.8MB

Download
memory/1532-14-0x00007FFFEFC40000-0x00007FFFF0702000-memory.dmp

Filesize
10.8MB

Download
memory/1532-13-0x00007FFFEFC40000-0x00007FFFF0702000-memory.dmp

Filesize
10.8MB

Download
memory/1532-12-0x00007FFFEFC40000-0x00007FFFF0702000-memory.dmp

Filesize
10.8MB

Download
memory/1532-2-0x000001F05B670000-0x000001F05B692000-memory.dmp

Filesize
136KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads