agenttesla | 09f71363eeae20550c65800031e142057ca1ebe52be382b0cdc4ad35d8ddba1e

General

Target

DOCUMENT.exe
Size

402KB
MD5

80a0e44a0b9428e5c1c22669de4199c2
SHA1

62a712d3b5ffcd9e63a4d91899b05c0fb11e03f3
SHA256

02a155cd37b9928135915cc0ca32e4bb683335d1bc1fadec09bd667917e2c734
SHA512

6a462ab876c1995bc8d1e42be965e31bedb395b831cddd3b8b0b1c68a0610a1efff0615d2baf630d924b03c27556ce763478bbda2a36e125b0b63b43024e8bb3

Score

10^/10

agenttesla collection keylogger persistence rezer0 spyware stealer trojan

Malware Config

Signatures

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

AgentTesla Payload 17 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1296-66-0x000000000044816E-mapping.dmp	family_agenttesla
behavioral1/memory/1296-70-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1296-80-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1296-91-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1296-89-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1296-88-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1296-86-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1296-83-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1296-82-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1296-78-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1296-77-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1296-76-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1296-75-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1296-74-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1296-73-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1296-72-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1296-68-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1892-57-0x00000000010C0000-0x0000000001114000-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:

DOCUMENT.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	DOCUMENT.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DOCUMENT.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DOCUMENT.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

DOCUMENT.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\Window Updater = "C:\\Users\\Admin\\AppData\\Roaming\\Window Updater\\Window Updater.exe"	DOCUMENT.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

DOCUMENT.exe

description pid process target process

PID 1892 set thread context of 1296 1892 DOCUMENT.exe DOCUMENT.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

848 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

DOCUMENT.exeDOCUMENT.exe

pid process

1892 DOCUMENT.exe
1892 DOCUMENT.exe
1296 DOCUMENT.exe
1296 DOCUMENT.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

DOCUMENT.exeDOCUMENT.exe

description pid process

Token: SeDebugPrivilege 1892 DOCUMENT.exe
Token: SeDebugPrivilege 1296 DOCUMENT.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

DOCUMENT.exe

pid process

1296 DOCUMENT.exe

description	pid	process	target process
PID 1892 set thread context of 1296	1892	DOCUMENT.exe	DOCUMENT.exe

pid	process
848	schtasks.exe

pid	process
1892	DOCUMENT.exe
1892	DOCUMENT.exe
1296	DOCUMENT.exe
1296	DOCUMENT.exe

description	pid	process
Token: SeDebugPrivilege	1892	DOCUMENT.exe
Token: SeDebugPrivilege	1296	DOCUMENT.exe

pid	process
1296	DOCUMENT.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

DOCUMENT.exe

description	pid	process	target process
PID 1892 wrote to memory of 848	1892	DOCUMENT.exe	schtasks.exe
PID 1892 wrote to memory of 848	1892	DOCUMENT.exe	schtasks.exe
PID 1892 wrote to memory of 848	1892	DOCUMENT.exe	schtasks.exe
PID 1892 wrote to memory of 848	1892	DOCUMENT.exe	schtasks.exe
PID 1892 wrote to memory of 1264	1892	DOCUMENT.exe	DOCUMENT.exe
PID 1892 wrote to memory of 1264	1892	DOCUMENT.exe	DOCUMENT.exe
PID 1892 wrote to memory of 1264	1892	DOCUMENT.exe	DOCUMENT.exe
PID 1892 wrote to memory of 1264	1892	DOCUMENT.exe	DOCUMENT.exe
PID 1892 wrote to memory of 1296	1892	DOCUMENT.exe	DOCUMENT.exe
PID 1892 wrote to memory of 1296	1892	DOCUMENT.exe	DOCUMENT.exe
PID 1892 wrote to memory of 1296	1892	DOCUMENT.exe	DOCUMENT.exe
PID 1892 wrote to memory of 1296	1892	DOCUMENT.exe	DOCUMENT.exe
PID 1892 wrote to memory of 1296	1892	DOCUMENT.exe	DOCUMENT.exe
PID 1892 wrote to memory of 1296	1892	DOCUMENT.exe	DOCUMENT.exe
PID 1892 wrote to memory of 1296	1892	DOCUMENT.exe	DOCUMENT.exe
PID 1892 wrote to memory of 1296	1892	DOCUMENT.exe	DOCUMENT.exe
PID 1892 wrote to memory of 1296	1892	DOCUMENT.exe	DOCUMENT.exe

outlook_office_path 1 IoCs

Processes:

DOCUMENT.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	DOCUMENT.exe

outlook_win_path 1 IoCs

Processes:

DOCUMENT.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	DOCUMENT.exe

C:\Users\Admin\AppData\Local\Temp\DOCUMENT.exe
"C:\Users\Admin\AppData\Local\Temp\DOCUMENT.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1892

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FOjdepUxIdcc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFCA8.tmp"
2⤵
- Creates scheduled task(s)
PID:848

C:\Users\Admin\AppData\Local\Temp\DOCUMENT.exe
"C:\Users\Admin\AppData\Local\Temp\DOCUMENT.exe"
2⤵
PID:1264

C:\Users\Admin\AppData\Local\Temp\DOCUMENT.exe
"C:\Users\Admin\AppData\Local\Temp\DOCUMENT.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1296

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpFCA8.tmp
Filesize
1KB

MD5
1ed3746493a7a97ec2b0c58cf1cdd9b0

SHA1
4aab7b9fa5004f5d501f495e69a8acb354fea6f0

SHA256
40692899d133bf02d8a9a86e56f8ae48bff5f99a677dc7b063deb55753939a9f

SHA512
9074238304652fd9193c82769892e43dfe0cc31866b2333a5c107790af7b05bc00fb62d1310b8aee984b089268abb6fde12bf467e6e9adfd819dbe2f1d145b46

Download Submit
memory/848-58-0x0000000000000000-mapping.dmp

Download
memory/1296-83-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-93-0x0000000000340000-0x000000000034A000-memory.dmp

Filesize
40KB

Download
memory/1296-82-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-60-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-63-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-66-0x000000000044816E-mapping.dmp

Download
memory/1296-70-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-80-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-91-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-89-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-88-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-86-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-61-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-64-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-68-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-77-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-76-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-75-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-74-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-73-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-72-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-78-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1296-65-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1892-57-0x00000000010C0000-0x0000000001114000-memory.dmp

Filesize
336KB

Download
memory/1892-56-0x0000000000A90000-0x0000000000A98000-memory.dmp

Filesize
32KB

Download
memory/1892-55-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

Filesize
8KB

Download
memory/1892-54-0x00000000011D0000-0x000000000123A000-memory.dmp

Filesize
424KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads