agenttesla | b1802121638afdbe414c77db5f708e4d9fa1b7536782069c64ded7af245066ca

General

Target

PO_4091.exe
Size

480KB
MD5

2f0bc79fec8651f0e45ecfbb229d0b7f
SHA1

a3107ca93d12cbc6f411233aeb017e9391aac832
SHA256

66a70b0fbd80aa28f3215b944260a8ce06a97d6e7f975cbd0100fba806b95016
SHA512

ee9e741d3be90e33b5a9dc6977833bcae25d9e1472d2e146c68e80c75ee389eab3304bbb8ea2a6c8aae095d8bae5a1856964374bf3e0a118659c9536c3989980

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.privateemail.com
Port:
587
Username:
[email protected]
Password:
neighbor123

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.privateemail.com
Port:
587
Username:
[email protected]
Password:
neighbor123

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/4336-135-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

PO_4091.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	PO_4091.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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

PO_4091.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_4091.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_4091.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_4091.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

PO_4091.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FhczPe = "C:\\Users\\Admin\\AppData\\Roaming\\FhczPe\\FhczPe.exe"	PO_4091.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PO_4091.exe

description pid process target process

PID 480 set thread context of 4336 480 PO_4091.exe PO_4091.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

4388 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

PO_4091.exePO_4091.exe

pid process

480 PO_4091.exe
4336 PO_4091.exe
4336 PO_4091.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO_4091.exePO_4091.exe

description pid process

Token: SeDebugPrivilege 480 PO_4091.exe
Token: SeDebugPrivilege 4336 PO_4091.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PO_4091.exe

pid process

4336 PO_4091.exe

description	pid	process	target process
PID 480 set thread context of 4336	480	PO_4091.exe	PO_4091.exe

pid	process
4388	schtasks.exe

pid	process
480	PO_4091.exe
4336	PO_4091.exe
4336	PO_4091.exe

description	pid	process
Token: SeDebugPrivilege	480	PO_4091.exe
Token: SeDebugPrivilege	4336	PO_4091.exe

pid	process
4336	PO_4091.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

PO_4091.exePO_4091.exe

description	pid	process	target process
PID 480 wrote to memory of 4388	480	PO_4091.exe	schtasks.exe
PID 480 wrote to memory of 4388	480	PO_4091.exe	schtasks.exe
PID 480 wrote to memory of 4388	480	PO_4091.exe	schtasks.exe
PID 480 wrote to memory of 4336	480	PO_4091.exe	PO_4091.exe
PID 480 wrote to memory of 4336	480	PO_4091.exe	PO_4091.exe
PID 480 wrote to memory of 4336	480	PO_4091.exe	PO_4091.exe
PID 480 wrote to memory of 4336	480	PO_4091.exe	PO_4091.exe
PID 480 wrote to memory of 4336	480	PO_4091.exe	PO_4091.exe
PID 480 wrote to memory of 4336	480	PO_4091.exe	PO_4091.exe
PID 480 wrote to memory of 4336	480	PO_4091.exe	PO_4091.exe
PID 480 wrote to memory of 4336	480	PO_4091.exe	PO_4091.exe
PID 4336 wrote to memory of 2296	4336	PO_4091.exe	netsh.exe
PID 4336 wrote to memory of 2296	4336	PO_4091.exe	netsh.exe
PID 4336 wrote to memory of 2296	4336	PO_4091.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

PO_4091.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_4091.exe

outlook_win_path 1 IoCs

Processes:

PO_4091.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_4091.exe

C:\Users\Admin\AppData\Local\Temp\PO_4091.exe
"C:\Users\Admin\AppData\Local\Temp\PO_4091.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:480

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dpgQkcc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp568C.tmp"
2⤵
- Creates scheduled task(s)
PID:4388

C:\Users\Admin\AppData\Local\Temp\PO_4091.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4336

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:2296

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

Query Registry

1

T1012

System Information Discovery

2

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\tmp568C.tmp
Filesize
1KB

MD5
4c09502c5160f8079c756dc7d657312e

SHA1
533cff30210fe8a519a622f3a48896ca21db34e0

SHA256
664613bf255e8f643900a5e4f20fb74a46a8c266ec0e3ee8b01a4c11253b9e6a

SHA512
b08567fa11379b67a71ba8511bc3a0e10815d945a20419358ba6a39274fbb6e0ce5aa97a059556ca841b9d3696976a739c3d487d5813293ccbb23860bd8bfe8e

Download Submit
memory/480-131-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/2296-137-0x0000000000000000-mapping.dmp

Download
memory/4336-134-0x0000000000000000-mapping.dmp

Download
memory/4336-135-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/4336-136-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/4388-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads