agenttesla | 492bdc3161c7e9cefe697097f98f90185a28ec08f7a633a357c24a8f7c18c651

General

Target

RFQ.exe
Size

569KB
MD5

105cc34e0dcb56a0bb61374f2e6eaae6
SHA1

5e9dc5c0907fd3d4d3d3debc923b1715881da818
SHA256

a4d604ac931839ec691dccc2474d80bf2f826693d4ce914a161a484288ebe20a
SHA512

6133b8dc30fd532d585032acf515f49dce624139411a0c1879bd10a582a104743feed8d3c71523360c0e37d4bc5cc3141c7e1f0bc98f141010a7b127a20d6384

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
challenge12345@

Signatures

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

Contains code to disable Windows Defender 1 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

Processes:

resource	yara_rule
behavioral1/memory/1948-56-0x0000000004910000-0x0000000004968000-memory.dmp	disable_win_def

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1488-60-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1488-61-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1488-62-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1488-63-0x000000000044CA9E-mapping.dmp	family_agenttesla
behavioral1/memory/1488-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1488-67-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

RFQ.exe

description pid process target process

PID 1948 set thread context of 1488 1948 RFQ.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1488 RegSvcs.exe
1488 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1488 RegSvcs.exe

description	pid	process	target process
PID 1948 set thread context of 1488	1948	RFQ.exe	RegSvcs.exe

pid	process
1488	RegSvcs.exe
1488	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1488	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

RFQ.exeRegSvcs.exe

description	pid	process	target process
PID 1948 wrote to memory of 1488	1948	RFQ.exe	RegSvcs.exe
PID 1948 wrote to memory of 1488	1948	RFQ.exe	RegSvcs.exe
PID 1948 wrote to memory of 1488	1948	RFQ.exe	RegSvcs.exe
PID 1948 wrote to memory of 1488	1948	RFQ.exe	RegSvcs.exe
PID 1948 wrote to memory of 1488	1948	RFQ.exe	RegSvcs.exe
PID 1948 wrote to memory of 1488	1948	RFQ.exe	RegSvcs.exe
PID 1948 wrote to memory of 1488	1948	RFQ.exe	RegSvcs.exe
PID 1948 wrote to memory of 1488	1948	RFQ.exe	RegSvcs.exe
PID 1948 wrote to memory of 1488	1948	RFQ.exe	RegSvcs.exe
PID 1948 wrote to memory of 1488	1948	RFQ.exe	RegSvcs.exe
PID 1948 wrote to memory of 1488	1948	RFQ.exe	RegSvcs.exe
PID 1948 wrote to memory of 1488	1948	RFQ.exe	RegSvcs.exe
PID 1488 wrote to memory of 1624	1488	RegSvcs.exe	netsh.exe
PID 1488 wrote to memory of 1624	1488	RegSvcs.exe	netsh.exe
PID 1488 wrote to memory of 1624	1488	RegSvcs.exe	netsh.exe
PID 1488 wrote to memory of 1624	1488	RegSvcs.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.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	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.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	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\RFQ.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1948

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1488

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1624

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/1488-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1488-57-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1488-58-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1488-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1488-62-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1488-63-0x000000000044CA9E-mapping.dmp

Download
memory/1488-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1488-67-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1488-68-0x0000000076191000-0x0000000076193000-memory.dmp

Filesize
8KB

Download
memory/1624-69-0x0000000000000000-mapping.dmp

Download
memory/1948-55-0x00000000009D0000-0x00000000009DA000-memory.dmp

Filesize
40KB

Download
memory/1948-56-0x0000000004910000-0x0000000004968000-memory.dmp

Filesize
352KB

Download
memory/1948-54-0x00000000011A0000-0x0000000001234000-memory.dmp

Filesize
592KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads