agenttesla | cc366f74f3a57b174cfcb3d769ed5042e4e3b3f3daf611574d5ee6f09be8ea39

General

Target

Purchase Order.exe
Size

598KB
MD5

fe5426be581da9253481c54aaabcd47d
SHA1

952d80126435cb1bf5be98dc15e37d93410b1ef3
SHA256

d5525bf39c73e96c70c1426c09e3431fcc7853b1f9920577aa3cd4596f209762
SHA512

e39fc25d4ad6d8b76d543fb113631983f77a2043aacfabd495da485ce6808b089c1253f7e2c961e1147187ed5b498e525ea758720b49dca756ca8b45b9f6af0c

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:
Safirxxx01

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
behavioral3/memory/2032-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral3/memory/2032-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral3/memory/2032-66-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral3/memory/2032-67-0x000000000044719E-mapping.dmp	family_agenttesla
behavioral3/memory/2032-71-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral3/memory/2032-69-0x0000000000400000-0x000000000044C000-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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\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-1-5-21-2277218442-1199762539-2004043321-1000\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 1904 set thread context of 2032 1904 Purchase Order.exe Purchase Order.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

1156 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

Purchase Order.exePurchase Order.exe

pid process

1904 Purchase Order.exe
1904 Purchase Order.exe
1904 Purchase Order.exe
2032 Purchase Order.exe
2032 Purchase Order.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

Purchase Order.exe

pid process

2032 Purchase Order.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Purchase Order.exePurchase Order.exe

description pid process

Token: SeDebugPrivilege 1904 Purchase Order.exe
Token: SeDebugPrivilege 2032 Purchase Order.exe

description	pid	process	target process
PID 1904 set thread context of 2032	1904	Purchase Order.exe	Purchase Order.exe

pid	process
1156	schtasks.exe

pid	process
1904	Purchase Order.exe
1904	Purchase Order.exe
1904	Purchase Order.exe
2032	Purchase Order.exe
2032	Purchase Order.exe

pid	process
2032	Purchase Order.exe

description	pid	process
Token: SeDebugPrivilege	1904	Purchase Order.exe
Token: SeDebugPrivilege	2032	Purchase Order.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Purchase Order.exe

description	pid	process	target process
PID 1904 wrote to memory of 1156	1904	Purchase Order.exe	schtasks.exe
PID 1904 wrote to memory of 1156	1904	Purchase Order.exe	schtasks.exe
PID 1904 wrote to memory of 1156	1904	Purchase Order.exe	schtasks.exe
PID 1904 wrote to memory of 1156	1904	Purchase Order.exe	schtasks.exe
PID 1904 wrote to memory of 2044	1904	Purchase Order.exe	Purchase Order.exe
PID 1904 wrote to memory of 2044	1904	Purchase Order.exe	Purchase Order.exe
PID 1904 wrote to memory of 2044	1904	Purchase Order.exe	Purchase Order.exe
PID 1904 wrote to memory of 2044	1904	Purchase Order.exe	Purchase Order.exe
PID 1904 wrote to memory of 2032	1904	Purchase Order.exe	Purchase Order.exe
PID 1904 wrote to memory of 2032	1904	Purchase Order.exe	Purchase Order.exe
PID 1904 wrote to memory of 2032	1904	Purchase Order.exe	Purchase Order.exe
PID 1904 wrote to memory of 2032	1904	Purchase Order.exe	Purchase Order.exe
PID 1904 wrote to memory of 2032	1904	Purchase Order.exe	Purchase Order.exe
PID 1904 wrote to memory of 2032	1904	Purchase Order.exe	Purchase Order.exe
PID 1904 wrote to memory of 2032	1904	Purchase Order.exe	Purchase Order.exe
PID 1904 wrote to memory of 2032	1904	Purchase Order.exe	Purchase Order.exe
PID 1904 wrote to memory of 2032	1904	Purchase Order.exe	Purchase Order.exe

outlook_office_path 1 IoCs

Processes:

Purchase Order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\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-1-5-21-2277218442-1199762539-2004043321-1000\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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1904

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lvnnHggXotaD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFA09.tmp"
2⤵
- Creates scheduled task(s)
PID:1156

C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
"{path}"
2⤵
PID:2044

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:2032

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

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\tmpFA09.tmp
Filesize
1KB

MD5
de66d73ac1fa1b376de2a62d8ab74693

SHA1
ea0c3179fc3f10fc85331c655aca33bc2abb0fa7

SHA256
1a8ba470f60d4ac6be7db4934e0b1f9bdff5c051678d70d1e7f7fab243089aec

SHA512
b95fbb06aefc28119e3b4b20b1e98d18a441fde848886f05c574dd319395425428c8100ee0aa678e09226449e134cfbce9e40dd394b3e8a0591ae82504796d76

Download Submit
memory/1156-59-0x0000000000000000-mapping.dmp

Download
memory/1904-57-0x0000000000930000-0x0000000000998000-memory.dmp

Filesize
416KB

Download
memory/1904-54-0x00000000000F0000-0x000000000018C000-memory.dmp

Filesize
624KB

Download
memory/1904-58-0x0000000004410000-0x000000000445C000-memory.dmp

Filesize
304KB

Download
memory/1904-56-0x0000000000440000-0x0000000000450000-memory.dmp

Filesize
64KB

Download
memory/1904-55-0x0000000075FB1000-0x0000000075FB3000-memory.dmp

Filesize
8KB

Download
memory/2032-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2032-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2032-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2032-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2032-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2032-67-0x000000000044719E-mapping.dmp

Download
memory/2032-71-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2032-69-0x0000000000400000-0x000000000044C000-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