xworm | 6c38b37ea2e05082f0357c42d3e216d50ba4a50aaad9ca7a00a85402896e5f58

General

Target

JJsploit.exe
Size

328KB
MD5

7c85044f93d8185748d4519a3fa7a99c
SHA1

760353df28933f8c60f44dbc1f5592e47f5be99e
SHA256

6c38b37ea2e05082f0357c42d3e216d50ba4a50aaad9ca7a00a85402896e5f58
SHA512

d522d394751709904e7f44c5dfbef04814e6dc9bf0bb57716ca0058f6787c66d7be74e37c1232ac7fb165ca4e0a11861ca220cc0fef9903d411722fba19e5697
SSDEEP

3072:MrsAo+b1lo43OLx4RzsGmizgqDwyRFatcZqivp:Mrbbno48SaGRvDBTatcZv

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

23.ip.gl.ply.gg:54625

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4516-1-0x0000000000EF0000-0x0000000000F48000-memory.dmp	family_xworm
behavioral2/files/0x002200000002aa79-57.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
2084	powershell.exe
4860	powershell.exe
5088	powershell.exe
3336	powershell.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
3836	XClient.exe
1500	XClient.exe

Loads dropped DLL 1 IoCs

pid	Process
4516	JJsploit.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-1-5-21-2253712635-4068079004-3870069674-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	JJsploit.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
4228	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
5088	powershell.exe
5088	powershell.exe
3336	powershell.exe
3336	powershell.exe
2084	powershell.exe
2084	powershell.exe
4860	powershell.exe
4860	powershell.exe
4516	JJsploit.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	4516	JJsploit.exe
Token: SeDebugPrivilege	5088	powershell.exe
Token: SeDebugPrivilege	3336	powershell.exe
Token: SeDebugPrivilege	2084	powershell.exe
Token: SeDebugPrivilege	4860	powershell.exe
Token: SeDebugPrivilege	4516	JJsploit.exe
Token: SeDebugPrivilege	3836	XClient.exe
Token: SeDebugPrivilege	1500	XClient.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4516	JJsploit.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4516 wrote to memory of 5088	4516	JJsploit.exe	80
PID 4516 wrote to memory of 5088	4516	JJsploit.exe	80
PID 4516 wrote to memory of 3336	4516	JJsploit.exe	82
PID 4516 wrote to memory of 3336	4516	JJsploit.exe	82
PID 4516 wrote to memory of 2084	4516	JJsploit.exe	84
PID 4516 wrote to memory of 2084	4516	JJsploit.exe	84
PID 4516 wrote to memory of 4860	4516	JJsploit.exe	86
PID 4516 wrote to memory of 4860	4516	JJsploit.exe	86
PID 4516 wrote to memory of 4228	4516	JJsploit.exe	88
PID 4516 wrote to memory of 4228	4516	JJsploit.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\JJsploit.exe
"C:\Users\Admin\AppData\Local\Temp\JJsploit.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4516
- 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\JJsploit.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5088
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'JJsploit.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3336
- 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\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2084
- 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:4860
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4228

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3836

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1500

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\XClient.exe.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
2e8eb51096d6f6781456fef7df731d97

SHA1
ec2aaf851a618fb43c3d040a13a71997c25bda43

SHA256
96bfd9dd5883329927fe8c08b8956355a1a6ceb30ceeb5d4252b346df32bc864

SHA512
0a73dc9a49f92d9dd556c2ca2e36761890b3538f355ee1f013e7cf648d8c4d065f28046cd4a167db3dea304d1fbcbcea68d11ce6e12a3f20f8b6c018a60422d2

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

Filesize
944B

MD5
4b106a3137e44ef4e5cf10a48afb2dbc

SHA1
b0aadb09ea9b9173a30f6c2a314f95d412eb3a29

SHA256
0b47525a7e8324b32b0c73451f37313629f2576ff508ba3de0dda1bea235b6d9

SHA512
542e65b76c4592927a835778ff8bf89565d02bb7068a864c37afef50ad4f19042d28959a68f5277029c759af9db10b59d69e1c5d4150f510f24ef9621d8e71ae

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

Filesize
944B

MD5
906523560f8af295fe0b398799658002

SHA1
b6b3d1f077ae0c39ac71d138630744856c0e424d

SHA256
9f1750afbd8fd87ce27d8ecb32a9dfc9247ca360055a34fb25780c3685995ced

SHA512
4dacd67d05b3648ce9ec59833aeca1c4683e25a8c0ab13297bede5168487e3c9a0608b9c93bb4e3baa2bd3a5414672f62c55b7386813d814e2cb44cd926f566b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_y42ioqon.rjb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp283F.tmp

Filesize
100KB

MD5
1b942faa8e8b1008a8c3c1004ba57349

SHA1
cd99977f6c1819b12b33240b784ca816dfe2cb91

SHA256
555ccb7ecd9ae52a75135fdd81ab443a49d5785b0621ed6468d28c4234e46ccc

SHA512
5aee3d59478d41ddd5885c99b394c9c4983064e2b3528db1a3f7fc289662bced4f57d072517bbe7573c6d1789435e987ef1aa9cc91f372bcfd30bc016675fa43

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

Filesize
328KB

MD5
7c85044f93d8185748d4519a3fa7a99c

SHA1
760353df28933f8c60f44dbc1f5592e47f5be99e

SHA256
6c38b37ea2e05082f0357c42d3e216d50ba4a50aaad9ca7a00a85402896e5f58

SHA512
d522d394751709904e7f44c5dfbef04814e6dc9bf0bb57716ca0058f6787c66d7be74e37c1232ac7fb165ca4e0a11861ca220cc0fef9903d411722fba19e5697

Download Submit
memory/4516-55-0x00007FFF5E8F0000-0x00007FFF5F3B2000-memory.dmp

Filesize
10.8MB

Download
memory/4516-49-0x00007FFF5E8F3000-0x00007FFF5E8F5000-memory.dmp

Filesize
8KB

Download
memory/4516-54-0x00007FFF5E8F0000-0x00007FFF5F3B2000-memory.dmp

Filesize
10.8MB

Download
memory/4516-0-0x00007FFF5E8F3000-0x00007FFF5E8F5000-memory.dmp

Filesize
8KB

Download
memory/4516-59-0x0000000003180000-0x000000000318C000-memory.dmp

Filesize
48KB

Download
memory/4516-61-0x0000000001780000-0x00000000017BA000-memory.dmp

Filesize
232KB

Download
memory/4516-1-0x0000000000EF0000-0x0000000000F48000-memory.dmp

Filesize
352KB

Download
memory/5088-17-0x00007FFF5E8F0000-0x00007FFF5F3B2000-memory.dmp

Filesize
10.8MB

Download
memory/5088-14-0x00007FFF5E8F0000-0x00007FFF5F3B2000-memory.dmp

Filesize
10.8MB

Download
memory/5088-13-0x00007FFF5E8F0000-0x00007FFF5F3B2000-memory.dmp

Filesize
10.8MB

Download
memory/5088-9-0x0000026566460000-0x0000026566482000-memory.dmp

Filesize
136KB

Download
memory/5088-7-0x00007FFF5E8F0000-0x00007FFF5F3B2000-memory.dmp

Filesize
10.8MB

Download
memory/5088-8-0x00007FFF5E8F0000-0x00007FFF5F3B2000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads