agenttesla | f84a683662f0654e8fbe85b5e2103d2703a62cb6adb240f89e776bafdf86ea5a

General

Target

QXVa6NvH82Yaiva.exe
Size

682KB
MD5

5b0f4ae46d79b6e8016b010d2d823e27
SHA1

180c8936879c2da34329042ab56fb628d9f4766a
SHA256

09be1d1130ddcf7aa7d321a4c70110c98a344812c818ed0cacfcbab916338034
SHA512

b37dbd01043a184ba403c50fa7fe46d5b5a724f13d931a96e6dfb711e732b378807beadb31e42fcb3855cae17bddd6f1f94b6fa1023241aa99d2ad59feafc992

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
esut96092

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/1988-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1988-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1988-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1988-66-0x000000000044750E-mapping.dmp	family_agenttesla
behavioral1/memory/1988-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1988-70-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

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:

QXVa6NvH82Yaiva.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QXVa6NvH82Yaiva.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QXVa6NvH82Yaiva.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QXVa6NvH82Yaiva.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

QXVa6NvH82Yaiva.exe

description pid process target process

PID 1668 set thread context of 1988 1668 QXVa6NvH82Yaiva.exe QXVa6NvH82Yaiva.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

1376 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

QXVa6NvH82Yaiva.exe

pid process

1988 QXVa6NvH82Yaiva.exe
1988 QXVa6NvH82Yaiva.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

QXVa6NvH82Yaiva.exeQXVa6NvH82Yaiva.exe

description pid process

Token: SeDebugPrivilege 1668 QXVa6NvH82Yaiva.exe
Token: SeDebugPrivilege 1988 QXVa6NvH82Yaiva.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

QXVa6NvH82Yaiva.exe

pid process

1988 QXVa6NvH82Yaiva.exe

description	pid	process	target process
PID 1668 set thread context of 1988	1668	QXVa6NvH82Yaiva.exe	QXVa6NvH82Yaiva.exe

pid	process
1376	schtasks.exe

pid	process
1988	QXVa6NvH82Yaiva.exe
1988	QXVa6NvH82Yaiva.exe

description	pid	process
Token: SeDebugPrivilege	1668	QXVa6NvH82Yaiva.exe
Token: SeDebugPrivilege	1988	QXVa6NvH82Yaiva.exe

pid	process
1988	QXVa6NvH82Yaiva.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

QXVa6NvH82Yaiva.exe

description	pid	process	target process
PID 1668 wrote to memory of 1376	1668	QXVa6NvH82Yaiva.exe	schtasks.exe
PID 1668 wrote to memory of 1376	1668	QXVa6NvH82Yaiva.exe	schtasks.exe
PID 1668 wrote to memory of 1376	1668	QXVa6NvH82Yaiva.exe	schtasks.exe
PID 1668 wrote to memory of 1376	1668	QXVa6NvH82Yaiva.exe	schtasks.exe
PID 1668 wrote to memory of 1988	1668	QXVa6NvH82Yaiva.exe	QXVa6NvH82Yaiva.exe
PID 1668 wrote to memory of 1988	1668	QXVa6NvH82Yaiva.exe	QXVa6NvH82Yaiva.exe
PID 1668 wrote to memory of 1988	1668	QXVa6NvH82Yaiva.exe	QXVa6NvH82Yaiva.exe
PID 1668 wrote to memory of 1988	1668	QXVa6NvH82Yaiva.exe	QXVa6NvH82Yaiva.exe
PID 1668 wrote to memory of 1988	1668	QXVa6NvH82Yaiva.exe	QXVa6NvH82Yaiva.exe
PID 1668 wrote to memory of 1988	1668	QXVa6NvH82Yaiva.exe	QXVa6NvH82Yaiva.exe
PID 1668 wrote to memory of 1988	1668	QXVa6NvH82Yaiva.exe	QXVa6NvH82Yaiva.exe
PID 1668 wrote to memory of 1988	1668	QXVa6NvH82Yaiva.exe	QXVa6NvH82Yaiva.exe
PID 1668 wrote to memory of 1988	1668	QXVa6NvH82Yaiva.exe	QXVa6NvH82Yaiva.exe

outlook_office_path 1 IoCs

Processes:

QXVa6NvH82Yaiva.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QXVa6NvH82Yaiva.exe

outlook_win_path 1 IoCs

Processes:

QXVa6NvH82Yaiva.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QXVa6NvH82Yaiva.exe

C:\Users\Admin\AppData\Local\Temp\QXVa6NvH82Yaiva.exe
"C:\Users\Admin\AppData\Local\Temp\QXVa6NvH82Yaiva.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1668

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RnSoNyQm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBEFC.tmp"
2⤵
- Creates scheduled task(s)
PID:1376

C:\Users\Admin\AppData\Local\Temp\QXVa6NvH82Yaiva.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1988

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpBEFC.tmp
Filesize
1KB

MD5
4319138fa9a7c926e845094259aca968

SHA1
72a2ad9ec5e006c7c627b9a41ae9d590a9ddc9ef

SHA256
ecd10638f9807b542ba0833f6822ec9924e26df1f8ad314caeed763d222be369

SHA512
433a180a55f4cffb32a39e7f2fa0aeeed0c9b13788a7323d66bccb236bd11e8e1c54ee6e5f5633122d011fff0e301703c4407adc101629d4be68d49566ed8e22

Download Submit
memory/1376-58-0x0000000000000000-mapping.dmp

Download
memory/1668-54-0x0000000000300000-0x00000000003B0000-memory.dmp

Filesize
704KB

Download
memory/1668-55-0x0000000075401000-0x0000000075403000-memory.dmp

Filesize
8KB

Download
memory/1668-56-0x00000000004C0000-0x00000000004CA000-memory.dmp

Filesize
40KB

Download
memory/1668-57-0x0000000004980000-0x00000000049D4000-memory.dmp

Filesize
336KB

Download
memory/1988-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1988-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1988-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1988-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1988-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1988-66-0x000000000044750E-mapping.dmp

Download
memory/1988-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1988-70-0x0000000000400000-0x000000000044C000-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