xworm | 2a12b9515d6865670ff51c0cfa19f016f84304b3087dcac8a13b4841c6f769ad

General

Target

EaglesBC.exe
Size

11.4MB
MD5

4b51836c5d5d08b3532856751d8d21e1
SHA1

7ed645a10198f69334d038616cabb2d627ced0a1
SHA256

2a12b9515d6865670ff51c0cfa19f016f84304b3087dcac8a13b4841c6f769ad
SHA512

8942661691f374fcb92b0603597e2fe874f7a4d2619d6dcead2b5ebb43b3e5ddf6aa08a420a6235dac0ea5291dfc44edd98dba88ecfe82a09b082527742c658d
SSDEEP

196608:rnDb8zwvKtQSy5+HXMpp1fVJsHTCwoDaNKEu0pitm74j+koTC56NEY4F4ilyiWA9:rn6wCt1y5+HXMp7f/sHT62u7oTCgN/iV

Score

10^/10

xworm execution persistence pyinstaller rat trojan

Malware Config

Extracted

Family

xworm

C2

bulletingmarrano-45523.portmap.host:45523

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/files/0x00070000000120fb-6.dat	family_xworm
behavioral1/memory/2832-7-0x0000000001130000-0x000000000114A000-memory.dmp	family_xworm
behavioral1/memory/1776-84-0x0000000000200000-0x000000000021A000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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
2140	powershell.exe
1352	powershell.exe
2332	powershell.exe
2732	powershell.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 4 IoCs

pid	Process
2832	installer.exe
2068	main.exe
2644	main.exe
1776	System

Loads dropped DLL 2 IoCs

pid	Process
2256	EaglesBC.exe
2644	main.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-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Users\\Admin\\AppData\\Roaming\\System"	installer.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
4	ip-api.com

Detects Pyinstaller 1 IoCs

pyinstaller

resource	yara_rule
behavioral1/files/0x002d000000015dba-11.dat	pyinstaller

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
1608	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2140	powershell.exe
1352	powershell.exe
2332	powershell.exe
2732	powershell.exe
2832	installer.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	2832	installer.exe
Token: SeDebugPrivilege	2140	powershell.exe
Token: SeDebugPrivilege	1352	powershell.exe
Token: SeDebugPrivilege	2332	powershell.exe
Token: SeDebugPrivilege	2732	powershell.exe
Token: SeDebugPrivilege	2832	installer.exe
Token: SeDebugPrivilege	1776	System

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2832	installer.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 2832	2256	EaglesBC.exe	29
PID 2256 wrote to memory of 2832	2256	EaglesBC.exe	29
PID 2256 wrote to memory of 2832	2256	EaglesBC.exe	29
PID 2256 wrote to memory of 2068	2256	EaglesBC.exe	30
PID 2256 wrote to memory of 2068	2256	EaglesBC.exe	30
PID 2256 wrote to memory of 2068	2256	EaglesBC.exe	30
PID 2068 wrote to memory of 2644	2068	main.exe	32
PID 2068 wrote to memory of 2644	2068	main.exe	32
PID 2068 wrote to memory of 2644	2068	main.exe	32
PID 2832 wrote to memory of 2140	2832	installer.exe	34
PID 2832 wrote to memory of 2140	2832	installer.exe	34
PID 2832 wrote to memory of 2140	2832	installer.exe	34
PID 2832 wrote to memory of 1352	2832	installer.exe	36
PID 2832 wrote to memory of 1352	2832	installer.exe	36
PID 2832 wrote to memory of 1352	2832	installer.exe	36
PID 2832 wrote to memory of 2332	2832	installer.exe	38
PID 2832 wrote to memory of 2332	2832	installer.exe	38
PID 2832 wrote to memory of 2332	2832	installer.exe	38
PID 2832 wrote to memory of 2732	2832	installer.exe	40
PID 2832 wrote to memory of 2732	2832	installer.exe	40
PID 2832 wrote to memory of 2732	2832	installer.exe	40
PID 2832 wrote to memory of 1608	2832	installer.exe	42
PID 2832 wrote to memory of 1608	2832	installer.exe	42
PID 2832 wrote to memory of 1608	2832	installer.exe	42
PID 2148 wrote to memory of 1776	2148	taskeng.exe	45
PID 2148 wrote to memory of 1776	2148	taskeng.exe	45
PID 2148 wrote to memory of 1776	2148	taskeng.exe	45

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\EaglesBC.exe
"C:\Users\Admin\AppData\Local\Temp\EaglesBC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Users\Admin\AppData\Roaming\installer.exe
  "C:\Users\Admin\AppData\Roaming\installer.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2832
- - 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\installer.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2140
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'installer.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1352
- - 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\System'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2332
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'System'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2732
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "System" /tr "C:\Users\Admin\AppData\Roaming\System"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1608
- C:\Users\Admin\AppData\Roaming\main.exe
  "C:\Users\Admin\AppData\Roaming\main.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2068
- - C:\Users\Admin\AppData\Roaming\main.exe
    "C:\Users\Admin\AppData\Roaming\main.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:2644

C:\Windows\system32\taskeng.exe
taskeng.exe {C09CCECE-AFDC-4544-B80E-222629A847D7} S-1-5-21-2172136094-3310281978-782691160-1000:EXCFTDUU\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Users\Admin\AppData\Roaming\System
  C:\Users\Admin\AppData\Roaming\System
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1776

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\Temp\_MEI20682\python311.dll

Filesize
5.5MB

MD5
9a24c8c35e4ac4b1597124c1dcbebe0f

SHA1
f59782a4923a30118b97e01a7f8db69b92d8382a

SHA256
a0cf640e756875c25c12b4a38ba5f2772e8e512036e2ac59eb8567bf05ffbfb7

SHA512
9d9336bf1f0d3bc9ce4a636a5f4e52c5f9487f51f00614fc4a34854a315ce7ea8be328153812dbd67c45c75001818fa63317eba15a6c9a024fa9f2cab163165b

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

Filesize
7KB

MD5
666fac1c4e7d0c7d714301d28581ab37

SHA1
979d134e5a4061a0434adc6c5b1511910985a28f

SHA256
102aec74a385d941956baeeeec0ed4438e1678ad642661c7d4d70331c67ce84c

SHA512
91bd9b08ddd2ea3d1fc4195cfde65230e0a958c31c4dd2cdf51adbff5cbc0b47d05f0eb07dc812316c20bde24a439ed7e0d9f7cb75c965934d12260f087540b7

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

Filesize
77KB

MD5
a14e787c8a2f394ea11ab98b460e031e

SHA1
74bd055755c80d1e64feb0e374c6de9a44652833

SHA256
c9340570223c9820c15b9db6fbaf61681e50551f647fb2fbdfc0259239e1abee

SHA512
25f64c14081423c39e04e35c158fd0dee97a0c644651b9091bf69a312ba1d6b8b7644af9e7e87fe5beed2c08f6a893a36dd86b19c81e05004a7d17625866230d

Download Submit
\Users\Admin\AppData\Roaming\main.exe

Filesize
11.2MB

MD5
04d75c5768045e48c378365e2203e685

SHA1
8c8ed690bdb5420c9f49ae2a3b43998cd25dfaa0

SHA256
a2221ac7b5046c7e76a0bef316290a3c25c18b06a94857f86418f8905df12af3

SHA512
fc67bd190f099adc0f5460fa51059c1de8a6013e25ff90c8b292583df6cb4511f714a70969b5212d0a54308d0a5b05a28286a2223c3a9a0a04737942d11c3fbb

Download Submit
memory/1352-64-0x0000000001F70000-0x0000000001F78000-memory.dmp

Filesize
32KB

Download
memory/1352-63-0x000000001B730000-0x000000001BA12000-memory.dmp

Filesize
2.9MB

Download
memory/1776-84-0x0000000000200000-0x000000000021A000-memory.dmp

Filesize
104KB

Download
memory/2140-56-0x000000001B740000-0x000000001BA22000-memory.dmp

Filesize
2.9MB

Download
memory/2140-57-0x0000000001F00000-0x0000000001F08000-memory.dmp

Filesize
32KB

Download
memory/2256-0-0x000007FEF5D93000-0x000007FEF5D94000-memory.dmp

Filesize
4KB

Download
memory/2256-1-0x0000000001010000-0x0000000001B82000-memory.dmp

Filesize
11.4MB

Download
memory/2832-51-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp

Filesize
9.9MB

Download
memory/2832-8-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp

Filesize
9.9MB

Download
memory/2832-7-0x0000000001130000-0x000000000114A000-memory.dmp

Filesize
104KB

Download
memory/2832-79-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp

Filesize
9.9MB

Download
memory/2832-80-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads