agenttesla | fcf486671fcfd181aeeb5d964a0e5fce563be5b9a15168e8ee8ff11e2d6192fc

General

Target

BL-SHIPPING INVOICE DOCS.exe
Size

448KB
MD5

1443ecb318ff158823692945f04e0a14
SHA1

fba634c395ca7bf82496d04e5b45822611db65e5
SHA256

fa9744a9f8530dfe050f21fd9b85a9cabfcfefd30b5290355e3ea6b6c8136b6f
SHA512

ccc22d778f9369b3d38e9658216a1600602f951f7c437aaa6c1292f0bae7eb94dedbc3456cc0ce832a1f9f9ac2e11a58f8c459eb4a215d0b829ad6ae1da06aa5

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.bsia.co.in
Port:
587
Username:
[email protected]
Password:
21mbsia@)@!Y

Signatures

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

AgentTesla Payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1452-64-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1452-65-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1452-66-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1452-67-0x00000000004374CE-mapping.dmp	family_agenttesla
behavioral1/memory/1452-68-0x0000000000400000-0x000000000043C000-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:

BL-SHIPPING INVOICE DOCS.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	BL-SHIPPING INVOICE DOCS.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	BL-SHIPPING INVOICE DOCS.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:

BL-SHIPPING INVOICE DOCS.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BL-SHIPPING INVOICE DOCS.exe
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BL-SHIPPING INVOICE DOCS.exe
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BL-SHIPPING INVOICE DOCS.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:

BL-SHIPPING INVOICE DOCS.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

BL-SHIPPING INVOICE DOCS.exe

description pid process target process

PID 1340 set thread context of 1452 1340 BL-SHIPPING INVOICE DOCS.exe BL-SHIPPING INVOICE DOCS.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 1340 set thread context of 1452	1340	BL-SHIPPING INVOICE DOCS.exe	BL-SHIPPING INVOICE DOCS.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

BL-SHIPPING INVOICE DOCS.exeBL-SHIPPING INVOICE DOCS.exepowershell.exe

pid	process
1340	BL-SHIPPING INVOICE DOCS.exe
1340	BL-SHIPPING INVOICE DOCS.exe
1452	BL-SHIPPING INVOICE DOCS.exe
1452	BL-SHIPPING INVOICE DOCS.exe
944	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

BL-SHIPPING INVOICE DOCS.exeBL-SHIPPING INVOICE DOCS.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1340	BL-SHIPPING INVOICE DOCS.exe
Token: SeDebugPrivilege	1452	BL-SHIPPING INVOICE DOCS.exe
Token: SeDebugPrivilege	944	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

BL-SHIPPING INVOICE DOCS.exe

description	pid	process	target process
PID 1340 wrote to memory of 944	1340	BL-SHIPPING INVOICE DOCS.exe	powershell.exe
PID 1340 wrote to memory of 944	1340	BL-SHIPPING INVOICE DOCS.exe	powershell.exe
PID 1340 wrote to memory of 944	1340	BL-SHIPPING INVOICE DOCS.exe	powershell.exe
PID 1340 wrote to memory of 944	1340	BL-SHIPPING INVOICE DOCS.exe	powershell.exe
PID 1340 wrote to memory of 1168	1340	BL-SHIPPING INVOICE DOCS.exe	BL-SHIPPING INVOICE DOCS.exe
PID 1340 wrote to memory of 1168	1340	BL-SHIPPING INVOICE DOCS.exe	BL-SHIPPING INVOICE DOCS.exe
PID 1340 wrote to memory of 1168	1340	BL-SHIPPING INVOICE DOCS.exe	BL-SHIPPING INVOICE DOCS.exe
PID 1340 wrote to memory of 1168	1340	BL-SHIPPING INVOICE DOCS.exe	BL-SHIPPING INVOICE DOCS.exe
PID 1340 wrote to memory of 1452	1340	BL-SHIPPING INVOICE DOCS.exe	BL-SHIPPING INVOICE DOCS.exe
PID 1340 wrote to memory of 1452	1340	BL-SHIPPING INVOICE DOCS.exe	BL-SHIPPING INVOICE DOCS.exe
PID 1340 wrote to memory of 1452	1340	BL-SHIPPING INVOICE DOCS.exe	BL-SHIPPING INVOICE DOCS.exe
PID 1340 wrote to memory of 1452	1340	BL-SHIPPING INVOICE DOCS.exe	BL-SHIPPING INVOICE DOCS.exe
PID 1340 wrote to memory of 1452	1340	BL-SHIPPING INVOICE DOCS.exe	BL-SHIPPING INVOICE DOCS.exe
PID 1340 wrote to memory of 1452	1340	BL-SHIPPING INVOICE DOCS.exe	BL-SHIPPING INVOICE DOCS.exe
PID 1340 wrote to memory of 1452	1340	BL-SHIPPING INVOICE DOCS.exe	BL-SHIPPING INVOICE DOCS.exe
PID 1340 wrote to memory of 1452	1340	BL-SHIPPING INVOICE DOCS.exe	BL-SHIPPING INVOICE DOCS.exe
PID 1340 wrote to memory of 1452	1340	BL-SHIPPING INVOICE DOCS.exe	BL-SHIPPING INVOICE DOCS.exe

outlook_office_path 1 IoCs

Processes:

BL-SHIPPING INVOICE DOCS.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BL-SHIPPING INVOICE DOCS.exe

outlook_win_path 1 IoCs

Processes:

BL-SHIPPING INVOICE DOCS.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BL-SHIPPING INVOICE DOCS.exe

C:\Users\Admin\AppData\Local\Temp\BL-SHIPPING INVOICE DOCS.exe
"C:\Users\Admin\AppData\Local\Temp\BL-SHIPPING INVOICE DOCS.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1340
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\BL-SHIPPING INVOICE DOCS.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:944
- C:\Users\Admin\AppData\Local\Temp\BL-SHIPPING INVOICE DOCS.exe
  "C:\Users\Admin\AppData\Local\Temp\BL-SHIPPING INVOICE DOCS.exe"
  2⤵
  PID:1168
- C:\Users\Admin\AppData\Local\Temp\BL-SHIPPING INVOICE DOCS.exe
  "C:\Users\Admin\AppData\Local\Temp\BL-SHIPPING INVOICE DOCS.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1452

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

3

T1081

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/944-69-0x0000000002430000-0x000000000307A000-memory.dmp

Filesize
12.3MB

Download
memory/944-60-0x0000000000000000-mapping.dmp

Download
memory/944-73-0x0000000002430000-0x000000000307A000-memory.dmp

Filesize
12.3MB

Download
memory/944-72-0x0000000002430000-0x000000000307A000-memory.dmp

Filesize
12.3MB

Download
memory/1340-56-0x00000000767F1000-0x00000000767F3000-memory.dmp

Filesize
8KB

Download
memory/1340-57-0x00000000011A0000-0x00000000011A1000-memory.dmp

Filesize
4KB

Download
memory/1340-58-0x0000000000240000-0x0000000000248000-memory.dmp

Filesize
32KB

Download
memory/1340-59-0x0000000004D70000-0x0000000004DC8000-memory.dmp

Filesize
352KB

Download
memory/1340-54-0x0000000001240000-0x0000000001241000-memory.dmp

Filesize
4KB

Download
memory/1452-64-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1452-66-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1452-67-0x00000000004374CE-mapping.dmp

Download
memory/1452-68-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1452-65-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1452-71-0x0000000004AC0000-0x0000000004AC1000-memory.dmp

Filesize
4KB

Download
memory/1452-63-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1452-62-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1452-74-0x0000000004AC1000-0x0000000004AC2000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads