agenttesla | 4f8acbd7a6e5a07f4efeb296457cc41ae7fef2360a34732620e58a4cce6d9936

General

Target

PROFORMA INVOICE.exe
Size

748KB
MD5

e99a9f525ab9a57bb4383e7f36d76440
SHA1

2e0055c754cd2b4f547ef559537923ddc041fe39
SHA256

6ae3a5e35dabdf5e52d854c2a9b230008cdcec3ea9b2d3b9227ca419abd62c4c
SHA512

26052078ced24c61910b92ca78d0e424925421a833a65afa5686ff87bb7b06cee2413a11094a54074b02d766f1796f7cdf35dcc0e6d7718cb547cd059ef30381

Score

10^/10

agenttesla collection evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.dedhivala.com
Port:
587
Username:
cs@dedhivala.com
Password:
enrk7Azx

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1728-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1728-62-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1728-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1728-65-0x0000000000446D7E-mapping.dmp	family_agenttesla
behavioral1/memory/1728-67-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1728-69-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

PROFORMA INVOICE.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	PROFORMA INVOICE.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	PROFORMA 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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

PROFORMA INVOICE.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PROFORMA INVOICE.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PROFORMA INVOICE.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PROFORMA INVOICE.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

PROFORMA INVOICE.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\ImIlErN = "C:\\Users\\Admin\\AppData\\Roaming\\ImIlErN\\ImIlErN.exe"	PROFORMA INVOICE.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

PROFORMA INVOICE.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	PROFORMA INVOICE.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	PROFORMA INVOICE.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PROFORMA INVOICE.exe

description pid process target process

PID 1652 set thread context of 1728 1652 PROFORMA INVOICE.exe PROFORMA INVOICE.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

PROFORMA INVOICE.exe

pid process

1728 PROFORMA INVOICE.exe
1728 PROFORMA INVOICE.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

PROFORMA INVOICE.exe

description pid process

Token: SeDebugPrivilege 1728 PROFORMA INVOICE.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PROFORMA INVOICE.exe

pid process

1728 PROFORMA INVOICE.exe

description	pid	process	target process
PID 1652 set thread context of 1728	1652	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe

pid	process
1728	PROFORMA INVOICE.exe
1728	PROFORMA INVOICE.exe

description	pid	process
Token: SeDebugPrivilege	1728	PROFORMA INVOICE.exe

pid	process
1728	PROFORMA INVOICE.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

PROFORMA INVOICE.exe

description	pid	process	target process
PID 1652 wrote to memory of 1728	1652	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe
PID 1652 wrote to memory of 1728	1652	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe
PID 1652 wrote to memory of 1728	1652	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe
PID 1652 wrote to memory of 1728	1652	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe
PID 1652 wrote to memory of 1728	1652	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe
PID 1652 wrote to memory of 1728	1652	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe
PID 1652 wrote to memory of 1728	1652	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe
PID 1652 wrote to memory of 1728	1652	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe
PID 1652 wrote to memory of 1728	1652	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe

outlook_office_path 1 IoCs

Processes:

PROFORMA INVOICE.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PROFORMA INVOICE.exe

outlook_win_path 1 IoCs

Processes:

PROFORMA INVOICE.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PROFORMA INVOICE.exe

C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.exe
"C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1652

C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.exe
"C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.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:1728

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

2

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/1652-54-0x0000000000C70000-0x0000000000D30000-memory.dmp

Filesize
768KB

Download
memory/1652-55-0x0000000076721000-0x0000000076723000-memory.dmp

Filesize
8KB

Download
memory/1652-56-0x00000000005D0000-0x00000000005E0000-memory.dmp

Filesize
64KB

Download
memory/1652-57-0x0000000005610000-0x0000000005696000-memory.dmp

Filesize
536KB

Download
memory/1652-58-0x0000000004CC0000-0x0000000004D1C000-memory.dmp

Filesize
368KB

Download
memory/1728-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1728-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1728-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1728-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1728-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1728-65-0x0000000000446D7E-mapping.dmp

Download
memory/1728-67-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1728-69-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads