agenttesla | 6cb2aac5524a46c2a394104d7b882b06f65ca95d62e39aa47f758e9708c4072c

General

Target

BOOKING 6x20' AGL.pdf.exe
Size

604KB
MD5

67d52644b5e58b57b81cddcd40bce613
SHA1

5c027479621a99fcc91a5cb4f1df952e5f20a47b
SHA256

62433e4de86d61a56cfc3333382d8a43d666a4839415a88ceca53a0754e06636
SHA512

3a09e502752180cb9a967cbb3095e515c0d0493c184254bdce4c76ab8fb4c2bb7667606a2f243741cd2496f90c85152d6a78eef605e3a55ae6e67f8f9c5b0c55

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.ereglitso.org.tr
Port:
587
Username:
[email protected]
Password:
#(G=xru&3R-8

Signatures

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

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral1/memory/1524-56-0x0000000000390000-0x0000000000398000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2020-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/2020-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/2020-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/2020-66-0x000000000044C64E-mapping.dmp	family_agenttesla
behavioral1/memory/2020-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/2020-70-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

CoreCCC Packer 1 IoCs

Detects CoreCCC packer used to load .NET malware.

Processes:

resource	yara_rule
behavioral1/memory/1524-54-0x0000000000ED0000-0x0000000000F6C000-memory.dmp	coreccc

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1524-57-0x0000000000E70000-0x0000000000EC8000-memory.dmp	rezer0

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
T1081
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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

BOOKING 6x20' AGL.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BOOKING 6x20' AGL.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BOOKING 6x20' AGL.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BOOKING 6x20' AGL.pdf.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

BOOKING 6x20' AGL.pdf.exe

description pid process target process

PID 1524 set thread context of 2020 1524 BOOKING 6x20' AGL.pdf.exe BOOKING 6x20' AGL.pdf.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

812 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

BOOKING 6x20' AGL.pdf.exe

pid process

2020 BOOKING 6x20' AGL.pdf.exe
2020 BOOKING 6x20' AGL.pdf.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

BOOKING 6x20' AGL.pdf.exe

description pid process

Token: SeDebugPrivilege 2020 BOOKING 6x20' AGL.pdf.exe

description	pid	process	target process
PID 1524 set thread context of 2020	1524	BOOKING 6x20' AGL.pdf.exe	BOOKING 6x20' AGL.pdf.exe

pid	process
812	schtasks.exe

pid	process
2020	BOOKING 6x20' AGL.pdf.exe
2020	BOOKING 6x20' AGL.pdf.exe

description	pid	process
Token: SeDebugPrivilege	2020	BOOKING 6x20' AGL.pdf.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

BOOKING 6x20' AGL.pdf.exeBOOKING 6x20' AGL.pdf.exe

description	pid	process	target process
PID 1524 wrote to memory of 812	1524	BOOKING 6x20' AGL.pdf.exe	schtasks.exe
PID 1524 wrote to memory of 812	1524	BOOKING 6x20' AGL.pdf.exe	schtasks.exe
PID 1524 wrote to memory of 812	1524	BOOKING 6x20' AGL.pdf.exe	schtasks.exe
PID 1524 wrote to memory of 812	1524	BOOKING 6x20' AGL.pdf.exe	schtasks.exe
PID 1524 wrote to memory of 2020	1524	BOOKING 6x20' AGL.pdf.exe	BOOKING 6x20' AGL.pdf.exe
PID 1524 wrote to memory of 2020	1524	BOOKING 6x20' AGL.pdf.exe	BOOKING 6x20' AGL.pdf.exe
PID 1524 wrote to memory of 2020	1524	BOOKING 6x20' AGL.pdf.exe	BOOKING 6x20' AGL.pdf.exe
PID 1524 wrote to memory of 2020	1524	BOOKING 6x20' AGL.pdf.exe	BOOKING 6x20' AGL.pdf.exe
PID 1524 wrote to memory of 2020	1524	BOOKING 6x20' AGL.pdf.exe	BOOKING 6x20' AGL.pdf.exe
PID 1524 wrote to memory of 2020	1524	BOOKING 6x20' AGL.pdf.exe	BOOKING 6x20' AGL.pdf.exe
PID 1524 wrote to memory of 2020	1524	BOOKING 6x20' AGL.pdf.exe	BOOKING 6x20' AGL.pdf.exe
PID 1524 wrote to memory of 2020	1524	BOOKING 6x20' AGL.pdf.exe	BOOKING 6x20' AGL.pdf.exe
PID 1524 wrote to memory of 2020	1524	BOOKING 6x20' AGL.pdf.exe	BOOKING 6x20' AGL.pdf.exe
PID 2020 wrote to memory of 972	2020	BOOKING 6x20' AGL.pdf.exe	netsh.exe
PID 2020 wrote to memory of 972	2020	BOOKING 6x20' AGL.pdf.exe	netsh.exe
PID 2020 wrote to memory of 972	2020	BOOKING 6x20' AGL.pdf.exe	netsh.exe
PID 2020 wrote to memory of 972	2020	BOOKING 6x20' AGL.pdf.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

BOOKING 6x20' AGL.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BOOKING 6x20' AGL.pdf.exe

outlook_win_path 1 IoCs

Processes:

BOOKING 6x20' AGL.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BOOKING 6x20' AGL.pdf.exe

C:\Users\Admin\AppData\Local\Temp\BOOKING 6x20' AGL.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\BOOKING 6x20' AGL.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1524

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LslhUwuaVh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3969.tmp"
2⤵
- Creates scheduled task(s)
PID:812

C:\Users\Admin\AppData\Local\Temp\BOOKING 6x20' AGL.pdf.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:2020

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:972

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3969.tmp
Filesize
1KB

MD5
de9cc34227f1cbd74c43ae5653455d0b

SHA1
cf27cd8cf1c43fadfedbf604f62dfb04a4f52c7f

SHA256
3e30684f22e3a98e5a56d03aa42c872816a8d115cc0e5f6c70b614e3614d378f

SHA512
6120136dbe378836daa00fa5f4893760ec49cfabd342c759f2afa58badb11c455b6beb099bcedc37f5701f30dd356bdaa4cf7ee461764c0f0c94bcedf6b53a32

Download Submit
memory/812-58-0x0000000000000000-mapping.dmp

Download
memory/972-72-0x0000000000000000-mapping.dmp

Download
memory/1524-55-0x0000000076851000-0x0000000076853000-memory.dmp

Filesize
8KB

Download
memory/1524-56-0x0000000000390000-0x0000000000398000-memory.dmp

Filesize
32KB

Download
memory/1524-57-0x0000000000E70000-0x0000000000EC8000-memory.dmp

Filesize
352KB

Download
memory/1524-54-0x0000000000ED0000-0x0000000000F6C000-memory.dmp

Filesize
624KB

Download
memory/2020-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2020-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2020-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2020-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2020-66-0x000000000044C64E-mapping.dmp

Download
memory/2020-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2020-70-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2020-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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