agenttesla | 12a9296bbae006899ed14d94a52cdd92853798ae302b83ba57375642e53f2929

General

Target

INVOICE.exe
Size

594KB
MD5

cdf5b175db3a7b60a0734daf15364717
SHA1

c56332d8c17c6aa873dbf177c44472409628ae05
SHA256

1df1597314ab01b00a84f5a025cb5112828d20fbc59dd3098fcb45fb88534661
SHA512

0df64f13bf872ffcf5693076c05301fb8786b3c100232f76284594c8990556c189f864212a13075094216acdf6b6352c345d2495953a5fa528d151111a1edb01

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.grandtours.gr
Port:
587
Username:
[email protected]
Password:
!Bitter-bullet-chuck-major!

Signatures

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

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4012-137-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla

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:

INVOICE.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation INVOICE.exe
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

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	INVOICE.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

INVOICE.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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

T1060

Modify Registry

T1112

Processes:

INVOICE.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xxspw = "C:\\Users\\Admin\\AppData\\Roaming\\xxspw\\xxspw.exe"	INVOICE.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

INVOICE.exe

description pid process target process

PID 2704 set thread context of 4012 2704 INVOICE.exe INVOICE.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

3132 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

INVOICE.exeINVOICE.exe

pid process

2704 INVOICE.exe
2704 INVOICE.exe
2704 INVOICE.exe
4012 INVOICE.exe
4012 INVOICE.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

INVOICE.exeINVOICE.exe

description pid process

Token: SeDebugPrivilege 2704 INVOICE.exe
Token: SeDebugPrivilege 4012 INVOICE.exe

description	pid	process	target process
PID 2704 set thread context of 4012	2704	INVOICE.exe	INVOICE.exe

pid	process
3132	schtasks.exe

pid	process
2704	INVOICE.exe
2704	INVOICE.exe
2704	INVOICE.exe
4012	INVOICE.exe
4012	INVOICE.exe

description	pid	process
Token: SeDebugPrivilege	2704	INVOICE.exe
Token: SeDebugPrivilege	4012	INVOICE.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

INVOICE.exe

description	pid	process	target process
PID 2704 wrote to memory of 3132	2704	INVOICE.exe	schtasks.exe
PID 2704 wrote to memory of 3132	2704	INVOICE.exe	schtasks.exe
PID 2704 wrote to memory of 3132	2704	INVOICE.exe	schtasks.exe
PID 2704 wrote to memory of 4012	2704	INVOICE.exe	INVOICE.exe
PID 2704 wrote to memory of 4012	2704	INVOICE.exe	INVOICE.exe
PID 2704 wrote to memory of 4012	2704	INVOICE.exe	INVOICE.exe
PID 2704 wrote to memory of 4012	2704	INVOICE.exe	INVOICE.exe
PID 2704 wrote to memory of 4012	2704	INVOICE.exe	INVOICE.exe
PID 2704 wrote to memory of 4012	2704	INVOICE.exe	INVOICE.exe
PID 2704 wrote to memory of 4012	2704	INVOICE.exe	INVOICE.exe
PID 2704 wrote to memory of 4012	2704	INVOICE.exe	INVOICE.exe

outlook_office_path 1 IoCs

Processes:

INVOICE.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE.exe

outlook_win_path 1 IoCs

Processes:

INVOICE.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2704

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AtVXDrAK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp347D.tmp"
2⤵
- Creates scheduled task(s)
PID:3132

C:\Users\Admin\AppData\Local\Temp\INVOICE.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4012

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

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\tmp347D.tmp

Filesize
1KB

MD5
04d80d6834a80305049c77997b2f18d6

SHA1
00cc1e3c2cdb79a9532aaa2612748b1c8dbfab11

SHA256
25a868bfe2a9b2cda4b0271895e01d2d2c987894a74f00adfe848a9d7906f07b

SHA512
d8b0f976887f4bf0edf58f43df9f44933aacd12282b60a03c673c0bd70b5e4a177b80091fdfaa838a0d84df33331bd38e744c733c067fd5941f8e01467f912e5

Download Submit
memory/2704-130-0x0000000000190000-0x000000000022A000-memory.dmp

Filesize
616KB

Download
memory/2704-131-0x0000000005200000-0x00000000057A4000-memory.dmp

Filesize
5.6MB

Download
memory/2704-132-0x0000000004C50000-0x0000000004CE2000-memory.dmp

Filesize
584KB

Download
memory/2704-133-0x0000000005850000-0x00000000058EC000-memory.dmp

Filesize
624KB

Download
memory/3132-134-0x0000000000000000-mapping.dmp

Download
memory/4012-136-0x0000000000000000-mapping.dmp

Download
memory/4012-137-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4012-138-0x0000000006130000-0x0000000006196000-memory.dmp

Filesize
408KB

Download
memory/4012-139-0x0000000006920000-0x0000000006970000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads