agenttesla | dd78b3f1b89b375244256f710c6a1c9b1e88b64d7f988d88f48fe27bb610f124

General

Target

RFQ.exe
Size

526KB
MD5

11cf56fdc6a4d1ad12da37708109133c
SHA1

245918d53b70ad2df2906dcc27284d09a6dc420c
SHA256

8cc912eb69cd18bfe0f087b5861c6a9db0937a39ab6db66e08ca2caa344f7402
SHA512

d4143503e44e577b08e8f5f76eb3cef33308e6d8d84c0d2221aaeb1475f6b02bd4c9eee90eb4c5436edfdc9f16df77164ab67ed02f99f028be720c00a1f6253f

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.threewaystoharems.com
Port:
587
Username:
[email protected]
Password:
sales@123456

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.threewaystoharems.com
Port:
587
Username:
[email protected]
Password:
sales@123456

Signatures

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

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4452-136-0x0000000000400000-0x000000000044C000-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:

RFQ.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RFQ.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe"	RFQ.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

RFQ.exe

description pid process target process

PID 4844 set thread context of 4452 4844 RFQ.exe RFQ.exe
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

RFQ.exeRFQ.exe

pid process

4844 RFQ.exe
4844 RFQ.exe
4844 RFQ.exe
4844 RFQ.exe
4844 RFQ.exe
4452 RFQ.exe
4452 RFQ.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

RFQ.exe

pid process

4452 RFQ.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RFQ.exeRFQ.exe

description pid process

Token: SeDebugPrivilege 4844 RFQ.exe
Token: SeDebugPrivilege 4452 RFQ.exe

description	pid	process	target process
PID 4844 set thread context of 4452	4844	RFQ.exe	RFQ.exe

pid	process
4844	RFQ.exe
4844	RFQ.exe
4844	RFQ.exe
4844	RFQ.exe
4844	RFQ.exe
4452	RFQ.exe
4452	RFQ.exe

pid	process
4452	RFQ.exe

description	pid	process
Token: SeDebugPrivilege	4844	RFQ.exe
Token: SeDebugPrivilege	4452	RFQ.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

RFQ.exe

description	pid	process	target process
PID 4844 wrote to memory of 4804	4844	RFQ.exe	RFQ.exe
PID 4844 wrote to memory of 4804	4844	RFQ.exe	RFQ.exe
PID 4844 wrote to memory of 4804	4844	RFQ.exe	RFQ.exe
PID 4844 wrote to memory of 4452	4844	RFQ.exe	RFQ.exe
PID 4844 wrote to memory of 4452	4844	RFQ.exe	RFQ.exe
PID 4844 wrote to memory of 4452	4844	RFQ.exe	RFQ.exe
PID 4844 wrote to memory of 4452	4844	RFQ.exe	RFQ.exe
PID 4844 wrote to memory of 4452	4844	RFQ.exe	RFQ.exe
PID 4844 wrote to memory of 4452	4844	RFQ.exe	RFQ.exe
PID 4844 wrote to memory of 4452	4844	RFQ.exe	RFQ.exe
PID 4844 wrote to memory of 4452	4844	RFQ.exe	RFQ.exe

outlook_office_path 1 IoCs

Processes:

RFQ.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe

outlook_win_path 1 IoCs

Processes:

RFQ.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe

C:\Users\Admin\AppData\Local\Temp\RFQ.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4844

C:\Users\Admin\AppData\Local\Temp\RFQ.exe
"{path}"
2⤵
PID:4804

C:\Users\Admin\AppData\Local\Temp\RFQ.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4452

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

Credentials in Files

3

T1081

Discovery

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\Microsoft\CLR_v4.0_32\UsageLogs\RFQ.exe.log
Filesize
507B

MD5
76ffb2f33cb32ade8fc862a67599e9d8

SHA1
920cc4ab75b36d2f9f6e979b74db568973c49130

SHA256
f1a3724670e3379318ec9c73f6f39058cab0ab013ba3cd90c047c3d701362310

SHA512
f33502c2e1bb30c05359bfc6819ca934642a1e01874e3060349127d792694d56ad22fccd6c9477b8ee50d66db35785779324273f509576b48b7f85577e001b4e

Download Submit
memory/4452-135-0x0000000000000000-mapping.dmp

Download
memory/4452-136-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4452-138-0x0000000006760000-0x00000000067C6000-memory.dmp

Filesize
408KB

Download
memory/4452-139-0x0000000006C20000-0x0000000006C70000-memory.dmp

Filesize
320KB

Download
memory/4452-140-0x0000000006EB0000-0x0000000006EBA000-memory.dmp

Filesize
40KB

Download
memory/4804-134-0x0000000000000000-mapping.dmp

Download
memory/4844-130-0x0000000000800000-0x000000000088A000-memory.dmp

Filesize
552KB

Download
memory/4844-131-0x0000000005870000-0x0000000005E14000-memory.dmp

Filesize
5.6MB

Download
memory/4844-132-0x00000000052C0000-0x0000000005352000-memory.dmp

Filesize
584KB

Download
memory/4844-133-0x00000000060C0000-0x000000000615C000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads