xworm | 68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743

General

Target

68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe
Size

44KB
MD5

122fbe0d84957e8e5fa9385c12da3d0f
SHA1

ff9729798bca408c4cdbf4f44a2a25b95a7fc163
SHA256

68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743
SHA512

9ef2f06d78d5722e61ef55ceea2e19c4b12b7c0c0e95097b90ff6d98e5d2208921742fb4c31af816d20366de087775d0eb67de7b9c532f29eff54e43690672a5
SSDEEP

768:GNTRmetisWt2tKdouL3ZE9R9yFRPG9Xb6OOChLsGO6Mi5:GNTketz8npE92Fw9Xb6OOCVVO9i5

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

6vmX68wzVkGMx0vS

Attributes

Install_directory
%AppData%
install_file
USB.exe
pastebin_url
https://pastebin.com/raw/FgmKAhUD

aes.plain

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/1372-1-0x0000000001340000-0x0000000001352000-memory.dmp	family_xworm
behavioral1/files/0x000b000000012117-33.dat	family_xworm
behavioral1/memory/3032-35-0x0000000000D40000-0x0000000000D52000-memory.dmp	family_xworm
behavioral1/memory/608-38-0x0000000000F60000-0x0000000000F72000-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
2608	powershell.exe
2788	powershell.exe
2320	powershell.exe
2948	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe

Executes dropped EXE 3 IoCs

pid	Process
3032	svchost
608	svchost
1256	svchost

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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost"	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
4	pastebin.com
5	pastebin.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
2704	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2608	powershell.exe
2788	powershell.exe
2320	powershell.exe
2948	powershell.exe
1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe
Token: SeDebugPrivilege	2608	powershell.exe
Token: SeDebugPrivilege	2788	powershell.exe
Token: SeDebugPrivilege	2320	powershell.exe
Token: SeDebugPrivilege	2948	powershell.exe
Token: SeDebugPrivilege	1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe
Token: SeDebugPrivilege	3032	svchost
Token: SeDebugPrivilege	608	svchost
Token: SeDebugPrivilege	1256	svchost

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1372 wrote to memory of 2608	1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe	30
PID 1372 wrote to memory of 2608	1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe	30
PID 1372 wrote to memory of 2608	1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe	30
PID 1372 wrote to memory of 2788	1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe	32
PID 1372 wrote to memory of 2788	1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe	32
PID 1372 wrote to memory of 2788	1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe	32
PID 1372 wrote to memory of 2320	1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe	34
PID 1372 wrote to memory of 2320	1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe	34
PID 1372 wrote to memory of 2320	1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe	34
PID 1372 wrote to memory of 2948	1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe	36
PID 1372 wrote to memory of 2948	1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe	36
PID 1372 wrote to memory of 2948	1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe	36
PID 1372 wrote to memory of 2704	1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe	38
PID 1372 wrote to memory of 2704	1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe	38
PID 1372 wrote to memory of 2704	1372	68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe	38
PID 948 wrote to memory of 3032	948	taskeng.exe	42
PID 948 wrote to memory of 3032	948	taskeng.exe	42
PID 948 wrote to memory of 3032	948	taskeng.exe	42
PID 948 wrote to memory of 608	948	taskeng.exe	43
PID 948 wrote to memory of 608	948	taskeng.exe	43
PID 948 wrote to memory of 608	948	taskeng.exe	43
PID 948 wrote to memory of 1256	948	taskeng.exe	44
PID 948 wrote to memory of 1256	948	taskeng.exe	44
PID 948 wrote to memory of 1256	948	taskeng.exe	44

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\68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe
"C:\Users\Admin\AppData\Local\Temp\68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.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:1372
- 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\68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2608
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2788
- 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'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2320
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2948
- 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"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2704

C:\Windows\system32\taskeng.exe
taskeng.exe {7B7E8764-CDF0-45F3-A376-AF8EA5E283BA} S-1-5-21-1163522206-1469769407-485553996-1000:PJCSDMRP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:948
- C:\Users\Admin\AppData\Roaming\svchost
  C:\Users\Admin\AppData\Roaming\svchost
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3032
- C:\Users\Admin\AppData\Roaming\svchost
  C:\Users\Admin\AppData\Roaming\svchost
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:608
- C:\Users\Admin\AppData\Roaming\svchost
  C:\Users\Admin\AppData\Roaming\svchost
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1256

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

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
0293ed4b3e0d8f572a81040a904e778b

SHA1
ff7ae5dd89b5a27fcc2bd281052326b13b43183c

SHA256
f3b83929833c759b7c87a195fa064cdf6b7a983f8f27b53a54e3f5c5b1650797

SHA512
96e5c2f207cf4afeaa421d598ca774c8f5012e15525dad08f3e07018122fe71cc1cb407be7137c59803b67ef3aa2f891e5fa4ccdcd35f4b21a866ca2619cf97c

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

Filesize
44KB

MD5
122fbe0d84957e8e5fa9385c12da3d0f

SHA1
ff9729798bca408c4cdbf4f44a2a25b95a7fc163

SHA256
68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743

SHA512
9ef2f06d78d5722e61ef55ceea2e19c4b12b7c0c0e95097b90ff6d98e5d2208921742fb4c31af816d20366de087775d0eb67de7b9c532f29eff54e43690672a5

Download Submit
memory/608-38-0x0000000000F60000-0x0000000000F72000-memory.dmp

Filesize
72KB

Download
memory/1372-29-0x000000001B580000-0x000000001B600000-memory.dmp

Filesize
512KB

Download
memory/1372-1-0x0000000001340000-0x0000000001352000-memory.dmp

Filesize
72KB

Download
memory/1372-0-0x000007FEF5FD3000-0x000007FEF5FD4000-memory.dmp

Filesize
4KB

Download
memory/1372-31-0x000000001B580000-0x000000001B600000-memory.dmp

Filesize
512KB

Download
memory/1372-30-0x000007FEF5FD3000-0x000007FEF5FD4000-memory.dmp

Filesize
4KB

Download
memory/2608-7-0x000000001B5F0000-0x000000001B8D2000-memory.dmp

Filesize
2.9MB

Download
memory/2608-8-0x0000000001D90000-0x0000000001D98000-memory.dmp

Filesize
32KB

Download
memory/2608-6-0x0000000002B50000-0x0000000002BD0000-memory.dmp

Filesize
512KB

Download
memory/2788-15-0x0000000002770000-0x0000000002778000-memory.dmp

Filesize
32KB

Download
memory/2788-14-0x000000001B650000-0x000000001B932000-memory.dmp

Filesize
2.9MB

Download
memory/3032-35-0x0000000000D40000-0x0000000000D52000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads