agenttesla | 1a3cce0f5c02511e834306988d41a92e1fb868af6a460633f9d50a1c18f70342

General

Target

Earings.exe
Size

3.2MB
MD5

f0651beda340088ea94e3e8cb3fbba9b
SHA1

96d7f413100aa077898ba4f8c2ccb68cf641cba7
SHA256

1a3cce0f5c02511e834306988d41a92e1fb868af6a460633f9d50a1c18f70342
SHA512

e589ee2aaa6ed8d4c6c7f7b16b0d8dc72a8f3a7a7ed14db29b7533935d89cc552d3a6562c7ff8d1a6cde893cdaccf4ee6e6cb14cf60f1ad786c7c5361d348822

Score

10^/10

agenttesla collection evasion keylogger spyware stealer themida trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5095036073:AAEUdbdoQ_lgs7wZgrR-XxCyddDuY92GVFk/sendDocument

Signatures

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

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1960-59-0x0000000000050000-0x00000000008E6000-memory.dmp	family_agenttesla
behavioral1/memory/1960-58-0x0000000000050000-0x00000000008E6000-memory.dmp	family_agenttesla

Identifies VirtualBox via ACPI registry values (likely anti-VM) 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:

Earings.exe

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

Themida packer 2 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1960-59-0x0000000000050000-0x00000000008E6000-memory.dmp	themida
behavioral1/memory/1960-58-0x0000000000050000-0x00000000008E6000-memory.dmp	themida

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Earings.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Earings.exe
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Earings.exe
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Earings.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Earings.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Earings.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

Earings.exe

pid process

1960 Earings.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Earings.exe

pid process

1960 Earings.exe
1960 Earings.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Earings.exe

description pid process

Token: SeDebugPrivilege 1960 Earings.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Earings.exe

pid process

1960 Earings.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Earings.exe

pid	process
1960	Earings.exe

pid	process
1960	Earings.exe
1960	Earings.exe

description	pid	process
Token: SeDebugPrivilege	1960	Earings.exe

pid	process
1960	Earings.exe

outlook_office_path 1 IoCs

Processes:

Earings.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Earings.exe

outlook_win_path 1 IoCs

Processes:

Earings.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Earings.exe

C:\Users\Admin\AppData\Local\Temp\Earings.exe
"C:\Users\Admin\AppData\Local\Temp\Earings.exe"
1⤵
- Checks BIOS information in registry
- Accesses Microsoft Outlook profiles
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1960

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1960-55-0x0000000076511000-0x0000000076513000-memory.dmp

Filesize
8KB

Download
memory/1960-59-0x0000000000050000-0x00000000008E6000-memory.dmp

Filesize
8.6MB

Download
memory/1960-58-0x0000000000050000-0x00000000008E6000-memory.dmp

Filesize
8.6MB

Download
memory/1960-60-0x0000000004FA0000-0x0000000004FA1000-memory.dmp

Filesize
4KB

Download
memory/1960-61-0x0000000004FA1000-0x0000000004FA2000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads