agenttesla | ab3043b6f2321bdc9cec4d04b828e293ac1d1f41786494ac8272046d1bdb4663

Resubmissions

02-09-2024 02:44

240902-c8nlnszbmj 10

25-08-2024 17:39

240825-v8my9axfql 10

Analysis

max time kernel
135s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25-08-2024 17:39

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General

Target

Invoice.exe
Size

502KB
MD5

904caccef3f65e9229a12d2fe7b7041a
SHA1

0f9c30fc80338e85bb20c047b30885d4c3adf5e1
SHA256

24fb7946550f1ce880b6e96318c2ce6cdb993679db6a9e2c34c6e809fab35c64
SHA512

0a95935977872eebe60ca83c58ae25338d68792a7e86bbf5605a8a4219deaf67e9418b187fa4e0444277d69c20e67f703e7cea3cc1d2c588bc0990b8c80c6bbe
SSDEEP

12288:vFda+Fda3FQMGhfwkD3gDLWCIWBz18taUAf:gFpGhfw+oCZqOt

Score

10^/10

agenttesla collection credential_access discovery execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.privateemail.com
Port:
587
Username:
[email protected]
Password:
MARYolanmauluogwo@ever

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/5036-28-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Beds Protector Packer 1 IoCs

Detects Beds Protector packer used to load .NET malware.

resource	yara_rule
behavioral2/memory/4764-5-0x0000000004B90000-0x0000000004BFC000-memory.dmp	beds_protector

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Drops startup file 2 IoCs

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

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Invoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Invoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Invoice.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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0rig40 = "C:\\Users\\Admin\\AppData\\Roaming\\0rig40\\0rig40.exe"	Invoice.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4764 set thread context of 5036	4764	Invoice.exe	89

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3856	Powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Invoice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Invoice.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3856	Powershell.exe
3856	Powershell.exe
5036	Invoice.exe
5036	Invoice.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3856	Powershell.exe
Token: SeDebugPrivilege	5036	Invoice.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5036	Invoice.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4764 wrote to memory of 3856	4764	Invoice.exe	86
PID 4764 wrote to memory of 3856	4764	Invoice.exe	86
PID 4764 wrote to memory of 3856	4764	Invoice.exe	86
PID 4764 wrote to memory of 5036	4764	Invoice.exe	89
PID 4764 wrote to memory of 5036	4764	Invoice.exe	89
PID 4764 wrote to memory of 5036	4764	Invoice.exe	89
PID 4764 wrote to memory of 5036	4764	Invoice.exe	89
PID 4764 wrote to memory of 5036	4764	Invoice.exe	89
PID 4764 wrote to memory of 5036	4764	Invoice.exe	89
PID 4764 wrote to memory of 5036	4764	Invoice.exe	89
PID 4764 wrote to memory of 5036	4764	Invoice.exe	89

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Invoice.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Invoice.exe

C:\Users\Admin\AppData\Local\Temp\Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4764
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\Invoice.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Drivers.exe'
  2⤵
  - Drops startup file
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3856
- C:\Users\Admin\AppData\Local\Temp\Invoice.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:5036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Invoice.exe.log

Filesize
1KB

MD5
6a669672404c7fa39949936a483cf174

SHA1
25efdb55d16b9629db7d934e960a73d31a24f7c9

SHA256
937f98842e6d7049d8fcbb88ee2c4a324865f528e1fd9ba49de094010801b280

SHA512
ff48308ab82705bbe80139057ac652bf87c5fd7d129b0b57754ce50c833dda1d95743c6dd99d4560d3085cb87b571e7a6657dfde83c3908770ffcbcd551acefe

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3ghrtx2h.vcz.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3856-26-0x0000000005F60000-0x0000000005FAC000-memory.dmp

Filesize
304KB

Download
memory/3856-36-0x00000000064A0000-0x00000000064C2000-memory.dmp

Filesize
136KB

Download
memory/3856-40-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/3856-35-0x0000000006450000-0x000000000646A000-memory.dmp

Filesize
104KB

Download
memory/3856-34-0x0000000006F10000-0x0000000006FA6000-memory.dmp

Filesize
600KB

Download
memory/3856-7-0x0000000004940000-0x0000000004976000-memory.dmp

Filesize
216KB

Download
memory/3856-8-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/3856-11-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/3856-10-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/3856-9-0x0000000005100000-0x0000000005728000-memory.dmp

Filesize
6.2MB

Download
memory/3856-12-0x0000000005730000-0x0000000005752000-memory.dmp

Filesize
136KB

Download
memory/3856-25-0x0000000005F30000-0x0000000005F4E000-memory.dmp

Filesize
120KB

Download
memory/3856-16-0x0000000005840000-0x00000000058A6000-memory.dmp

Filesize
408KB

Download
memory/3856-13-0x00000000057D0000-0x0000000005836000-memory.dmp

Filesize
408KB

Download
memory/3856-24-0x00000000058B0000-0x0000000005C04000-memory.dmp

Filesize
3.3MB

Download
memory/4764-3-0x0000000004AF0000-0x0000000004B82000-memory.dmp

Filesize
584KB

Download
memory/4764-6-0x0000000004CB0000-0x0000000004D4C000-memory.dmp

Filesize
624KB

Download
memory/4764-0-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

Filesize
4KB

Download
memory/4764-1-0x0000000000060000-0x00000000000E4000-memory.dmp

Filesize
528KB

Download
memory/4764-27-0x0000000004C10000-0x0000000004C26000-memory.dmp

Filesize
88KB

Download
memory/4764-31-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/4764-5-0x0000000004B90000-0x0000000004BFC000-memory.dmp

Filesize
432KB

Download
memory/4764-4-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/4764-2-0x00000000050A0000-0x0000000005644000-memory.dmp

Filesize
5.6MB

Download
memory/5036-46-0x0000000006BF0000-0x0000000006BFA000-memory.dmp

Filesize
40KB

Download
memory/5036-32-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/5036-48-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/5036-41-0x0000000005DA0000-0x0000000005DB8000-memory.dmp

Filesize
96KB

Download
memory/5036-42-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/5036-43-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/5036-45-0x0000000006C40000-0x0000000006C90000-memory.dmp

Filesize
320KB

Download
memory/5036-28-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/5036-47-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/5036-33-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download