agenttesla | 8e2f378359ca3885f551fa0a08d0d9b9b43c2e16e3cd3b68acb9c57a63f1ce15

General

Target

PO_61654.exe
Size

494KB
MD5

0faf92001013a74d38b7d43cd4e8292e
SHA1

9870f1b6aa195deff54b059f2e28f77d526c2fb1
SHA256

5f8d0e5d206e5b37c552b79782a6777edf6e7a9a1c1db8ce324055baba187f4b
SHA512

19a8a5646eb15596bf2e4a55bf63e1badb2dd325b46a77f749a05a52197554e8aa079ff9e45bf4d3b6ca1b5f01c5a53755c398468abf960de6e504fcdafc1738

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.kenapens.com
Port:
587
Username:
[email protected]
Password:
@Hammer1980

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/1748-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1748-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1748-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1748-66-0x000000000044715E-mapping.dmp	family_agenttesla
behavioral1/memory/1748-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1748-70-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

PO_61654.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts PO_61654.exe
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

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	PO_61654.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

PO_61654.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	PO_61654.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_61654.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_61654.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

PO_61654.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\myapp = "C:\\Users\\Admin\\AppData\\Roaming\\myapp\\myapp.exe"	PO_61654.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PO_61654.exe

description pid process target process

PID 1932 set thread context of 1748 1932 PO_61654.exe PO_61654.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

2024 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

PO_61654.exePO_61654.exe

pid process

1932 PO_61654.exe
1932 PO_61654.exe
1748 PO_61654.exe
1748 PO_61654.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO_61654.exePO_61654.exe

description pid process

Token: SeDebugPrivilege 1932 PO_61654.exe
Token: SeDebugPrivilege 1748 PO_61654.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PO_61654.exe

pid process

1748 PO_61654.exe

description	pid	process	target process
PID 1932 set thread context of 1748	1932	PO_61654.exe	PO_61654.exe

pid	process
2024	schtasks.exe

pid	process
1932	PO_61654.exe
1932	PO_61654.exe
1748	PO_61654.exe
1748	PO_61654.exe

description	pid	process
Token: SeDebugPrivilege	1932	PO_61654.exe
Token: SeDebugPrivilege	1748	PO_61654.exe

pid	process
1748	PO_61654.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

PO_61654.exe

description	pid	process	target process
PID 1932 wrote to memory of 2024	1932	PO_61654.exe	schtasks.exe
PID 1932 wrote to memory of 2024	1932	PO_61654.exe	schtasks.exe
PID 1932 wrote to memory of 2024	1932	PO_61654.exe	schtasks.exe
PID 1932 wrote to memory of 2024	1932	PO_61654.exe	schtasks.exe
PID 1932 wrote to memory of 1976	1932	PO_61654.exe	PO_61654.exe
PID 1932 wrote to memory of 1976	1932	PO_61654.exe	PO_61654.exe
PID 1932 wrote to memory of 1976	1932	PO_61654.exe	PO_61654.exe
PID 1932 wrote to memory of 1976	1932	PO_61654.exe	PO_61654.exe
PID 1932 wrote to memory of 1748	1932	PO_61654.exe	PO_61654.exe
PID 1932 wrote to memory of 1748	1932	PO_61654.exe	PO_61654.exe
PID 1932 wrote to memory of 1748	1932	PO_61654.exe	PO_61654.exe
PID 1932 wrote to memory of 1748	1932	PO_61654.exe	PO_61654.exe
PID 1932 wrote to memory of 1748	1932	PO_61654.exe	PO_61654.exe
PID 1932 wrote to memory of 1748	1932	PO_61654.exe	PO_61654.exe
PID 1932 wrote to memory of 1748	1932	PO_61654.exe	PO_61654.exe
PID 1932 wrote to memory of 1748	1932	PO_61654.exe	PO_61654.exe
PID 1932 wrote to memory of 1748	1932	PO_61654.exe	PO_61654.exe

outlook_office_path 1 IoCs

Processes:

PO_61654.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	PO_61654.exe

outlook_win_path 1 IoCs

Processes:

PO_61654.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	PO_61654.exe

C:\Users\Admin\AppData\Local\Temp\PO_61654.exe
"C:\Users\Admin\AppData\Local\Temp\PO_61654.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1932

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\apxxmbC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCB0D.tmp"
2⤵
- Creates scheduled task(s)
PID:2024

C:\Users\Admin\AppData\Local\Temp\PO_61654.exe
"{path}"
2⤵
PID:1976

C:\Users\Admin\AppData\Local\Temp\PO_61654.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1748

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

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

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpCB0D.tmp

Filesize
1KB

MD5
04ea0723c5ee698ed39b129fd7d6324f

SHA1
52ee35bed2b705dffff91d5fb10c2f49d19f3b43

SHA256
503dd403670d3a5fddd329ed7d67942bacba00b6045d17399828c50bc5a81d76

SHA512
8ab40ed8f85d1fbb309943f5b8cf2addad996e487f5dbb4eb0b24a30a82c3a6489c438df05f082f9491858f927db9fa55ccb26d46955279fa660a1400ab1a4ac

Download Submit
memory/1748-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1748-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1748-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1748-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1748-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1748-66-0x000000000044715E-mapping.dmp

Download
memory/1748-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1748-70-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1932-56-0x0000000000AB0000-0x0000000000B04000-memory.dmp

Filesize
336KB

Download
memory/1932-57-0x00000000757C1000-0x00000000757C3000-memory.dmp

Filesize
8KB

Download
memory/1932-55-0x0000000000890000-0x0000000000898000-memory.dmp

Filesize
32KB

Download
memory/1932-54-0x0000000000E00000-0x0000000000E82000-memory.dmp

Filesize
520KB

Download
memory/2024-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads