agenttesla | 188bc6af1002bb1d12923c01becb543f8ce6ddafc9cf7b81e3362afb227dd2d8

General

Target

purchase order.exe
Size

438KB
MD5

ff0aaaaebbc20f0803d874beb67ff00b
SHA1

f786307b75cd5d2a7e5b8be8e34c999e372a63a9
SHA256

b6eecfd6a6e81cebb29940e6ccd64dea0434dfe1203de308dc16fa6271b74000
SHA512

95a30d2def90728a0f4100dd053bfb2d3bbea7047dd46b56f0a6e1b35a25e4b1bdde4321cdab7726ee25bf39ddba25bd34037ce8563cbab071c4213e23cbab85

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.threewaystoharems.com
Port:
587
Username:
coaching@threewaystoharems.com
Password:
sales@123456

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/624-59-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/624-60-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/624-61-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/624-62-0x000000000044737E-mapping.dmp	family_agenttesla
behavioral1/memory/624-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/624-66-0x0000000000400000-0x000000000044C000-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:

purchase order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

purchase order.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe"	purchase order.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

purchase order.exe

description pid process target process

PID 1376 set thread context of 624 1376 purchase order.exe purchase order.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

purchase order.exe

pid process

624 purchase order.exe
624 purchase order.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

purchase order.exe

pid process

624 purchase order.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

purchase order.exe

description pid process

Token: SeDebugPrivilege 624 purchase order.exe

description	pid	process	target process
PID 1376 set thread context of 624	1376	purchase order.exe	purchase order.exe

pid	process
624	purchase order.exe
624	purchase order.exe

pid	process
624	purchase order.exe

description	pid	process
Token: SeDebugPrivilege	624	purchase order.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

purchase order.exe

description	pid	process	target process
PID 1376 wrote to memory of 624	1376	purchase order.exe	purchase order.exe
PID 1376 wrote to memory of 624	1376	purchase order.exe	purchase order.exe
PID 1376 wrote to memory of 624	1376	purchase order.exe	purchase order.exe
PID 1376 wrote to memory of 624	1376	purchase order.exe	purchase order.exe
PID 1376 wrote to memory of 624	1376	purchase order.exe	purchase order.exe
PID 1376 wrote to memory of 624	1376	purchase order.exe	purchase order.exe
PID 1376 wrote to memory of 624	1376	purchase order.exe	purchase order.exe
PID 1376 wrote to memory of 624	1376	purchase order.exe	purchase order.exe
PID 1376 wrote to memory of 624	1376	purchase order.exe	purchase order.exe

outlook_office_path 1 IoCs

Processes:

purchase order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe

outlook_win_path 1 IoCs

Processes:

purchase order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe

C:\Users\Admin\AppData\Local\Temp\purchase order.exe
"C:\Users\Admin\AppData\Local\Temp\purchase order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1376

C:\Users\Admin\AppData\Local\Temp\purchase order.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:624

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

memory/624-56-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/624-57-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/624-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/624-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/624-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/624-62-0x000000000044737E-mapping.dmp

Download
memory/624-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/624-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/624-68-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/1376-54-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

Filesize
8KB

Download
memory/1376-55-0x0000000074AC0000-0x000000007506B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads