agenttesla | fa9744a9f8530dfe050f21fd9b85a9cabfcfefd30b5290355e3ea6b6c8136b6f

General

Target

fba634c395ca7bf82496d04e5b45822611db65e5.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/428-65-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/428-66-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/428-68-0x00000000004374CE-mapping.dmp	family_agenttesla
behavioral1/memory/428-67-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/428-69-0x0000000000400000-0x000000000043C000-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:

fba634c395ca7bf82496d04e5b45822611db65e5.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	fba634c395ca7bf82496d04e5b45822611db65e5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	fba634c395ca7bf82496d04e5b45822611db65e5.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:

fba634c395ca7bf82496d04e5b45822611db65e5.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fba634c395ca7bf82496d04e5b45822611db65e5.exe
Key opened	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fba634c395ca7bf82496d04e5b45822611db65e5.exe
Key opened	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fba634c395ca7bf82496d04e5b45822611db65e5.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:

fba634c395ca7bf82496d04e5b45822611db65e5.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	fba634c395ca7bf82496d04e5b45822611db65e5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	fba634c395ca7bf82496d04e5b45822611db65e5.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

fba634c395ca7bf82496d04e5b45822611db65e5.exe

description	pid	process	target process
PID 1604 set thread context of 428	1604	fba634c395ca7bf82496d04e5b45822611db65e5.exe	fba634c395ca7bf82496d04e5b45822611db65e5.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

fba634c395ca7bf82496d04e5b45822611db65e5.exepowershell.exe

pid process

428 fba634c395ca7bf82496d04e5b45822611db65e5.exe
428 fba634c395ca7bf82496d04e5b45822611db65e5.exe
688 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

fba634c395ca7bf82496d04e5b45822611db65e5.exepowershell.exe

description pid process

Token: SeDebugPrivilege 428 fba634c395ca7bf82496d04e5b45822611db65e5.exe
Token: SeDebugPrivilege 688 powershell.exe

pid	process
428	fba634c395ca7bf82496d04e5b45822611db65e5.exe
428	fba634c395ca7bf82496d04e5b45822611db65e5.exe
688	powershell.exe

description	pid	process
Token: SeDebugPrivilege	428	fba634c395ca7bf82496d04e5b45822611db65e5.exe
Token: SeDebugPrivilege	688	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

fba634c395ca7bf82496d04e5b45822611db65e5.exe

description	pid	process	target process
PID 1604 wrote to memory of 688	1604	fba634c395ca7bf82496d04e5b45822611db65e5.exe	powershell.exe
PID 1604 wrote to memory of 688	1604	fba634c395ca7bf82496d04e5b45822611db65e5.exe	powershell.exe
PID 1604 wrote to memory of 688	1604	fba634c395ca7bf82496d04e5b45822611db65e5.exe	powershell.exe
PID 1604 wrote to memory of 688	1604	fba634c395ca7bf82496d04e5b45822611db65e5.exe	powershell.exe
PID 1604 wrote to memory of 428	1604	fba634c395ca7bf82496d04e5b45822611db65e5.exe	fba634c395ca7bf82496d04e5b45822611db65e5.exe
PID 1604 wrote to memory of 428	1604	fba634c395ca7bf82496d04e5b45822611db65e5.exe	fba634c395ca7bf82496d04e5b45822611db65e5.exe
PID 1604 wrote to memory of 428	1604	fba634c395ca7bf82496d04e5b45822611db65e5.exe	fba634c395ca7bf82496d04e5b45822611db65e5.exe
PID 1604 wrote to memory of 428	1604	fba634c395ca7bf82496d04e5b45822611db65e5.exe	fba634c395ca7bf82496d04e5b45822611db65e5.exe
PID 1604 wrote to memory of 428	1604	fba634c395ca7bf82496d04e5b45822611db65e5.exe	fba634c395ca7bf82496d04e5b45822611db65e5.exe
PID 1604 wrote to memory of 428	1604	fba634c395ca7bf82496d04e5b45822611db65e5.exe	fba634c395ca7bf82496d04e5b45822611db65e5.exe
PID 1604 wrote to memory of 428	1604	fba634c395ca7bf82496d04e5b45822611db65e5.exe	fba634c395ca7bf82496d04e5b45822611db65e5.exe
PID 1604 wrote to memory of 428	1604	fba634c395ca7bf82496d04e5b45822611db65e5.exe	fba634c395ca7bf82496d04e5b45822611db65e5.exe
PID 1604 wrote to memory of 428	1604	fba634c395ca7bf82496d04e5b45822611db65e5.exe	fba634c395ca7bf82496d04e5b45822611db65e5.exe

outlook_office_path 1 IoCs

Processes:

fba634c395ca7bf82496d04e5b45822611db65e5.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fba634c395ca7bf82496d04e5b45822611db65e5.exe

outlook_win_path 1 IoCs

Processes:

fba634c395ca7bf82496d04e5b45822611db65e5.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fba634c395ca7bf82496d04e5b45822611db65e5.exe

C:\Users\Admin\AppData\Local\Temp\fba634c395ca7bf82496d04e5b45822611db65e5.exe
"C:\Users\Admin\AppData\Local\Temp\fba634c395ca7bf82496d04e5b45822611db65e5.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1604

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\fba634c395ca7bf82496d04e5b45822611db65e5.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:688

C:\Users\Admin\AppData\Local\Temp\fba634c395ca7bf82496d04e5b45822611db65e5.exe
"C:\Users\Admin\AppData\Local\Temp\fba634c395ca7bf82496d04e5b45822611db65e5.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:428

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

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Downloads

memory/428-69-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/428-67-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/428-64-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/428-68-0x00000000004374CE-mapping.dmp

Download
memory/428-66-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/428-71-0x0000000004B60000-0x0000000004B61000-memory.dmp

Filesize
4KB

Download
memory/428-63-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/428-65-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/428-75-0x0000000004B61000-0x0000000004B62000-memory.dmp

Filesize
4KB

Download
memory/688-61-0x0000000000000000-mapping.dmp

Download
memory/688-72-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/688-73-0x00000000002F1000-0x00000000002F2000-memory.dmp

Filesize
4KB

Download
memory/688-74-0x00000000002F2000-0x00000000002F4000-memory.dmp

Filesize
8KB

Download
memory/1604-59-0x00000000005B0000-0x00000000005B8000-memory.dmp

Filesize
32KB

Download
memory/1604-58-0x0000000000DA0000-0x0000000000DA1000-memory.dmp

Filesize
4KB

Download
memory/1604-55-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download
memory/1604-57-0x0000000075F41000-0x0000000075F43000-memory.dmp

Filesize
8KB

Download
memory/1604-60-0x0000000004810000-0x0000000004868000-memory.dmp

Filesize
352KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads