agenttesla | f2143e0aec246f899c07647a87f757add230325e6bc2967ad72eddb4e10ad90c

General

Target

Invoice09080000pdf.exe
Size

488KB
MD5

067d54aa6365b5989cbf6101f7e123fc
SHA1

5256dcea0fb8c3a455dacfc88850910b87f236f3
SHA256

a95bb180b0d9bb5f2a3b7974f8170fb18b6979a46cacfa352d769eccf428ebdf
SHA512

887331910739fd91be9c254ee59d877d01d444e07743f3e98f3fdfb27f63d90fcd1eb2527440060f36f691d727b5070ab5f8cf6853f866eefc8723caed13a3de

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.ionos.mx
Port:
587
Username:
lety@solar-pro.mx
Password:
lp475869

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.ionos.mx
Port:
587
Username:
lety@solar-pro.mx
Password:
lp475869

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/4768-134-0x0000000000400000-0x0000000000452000-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:

Invoice09080000pdf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	Invoice09080000pdf.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:

Invoice09080000pdf.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	Invoice09080000pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Invoice09080000pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Invoice09080000pdf.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Invoice09080000pdf.exe

description pid process target process

PID 2916 set thread context of 4768 2916 Invoice09080000pdf.exe Invoice09080000pdf.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

4296 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Invoice09080000pdf.exe

pid process

4768 Invoice09080000pdf.exe
4768 Invoice09080000pdf.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Invoice09080000pdf.exe

description pid process

Token: SeDebugPrivilege 4768 Invoice09080000pdf.exe

description	pid	process	target process
PID 2916 set thread context of 4768	2916	Invoice09080000pdf.exe	Invoice09080000pdf.exe

pid	process
4296	schtasks.exe

pid	process
4768	Invoice09080000pdf.exe
4768	Invoice09080000pdf.exe

description	pid	process
Token: SeDebugPrivilege	4768	Invoice09080000pdf.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Invoice09080000pdf.exeInvoice09080000pdf.exe

description	pid	process	target process
PID 2916 wrote to memory of 4296	2916	Invoice09080000pdf.exe	schtasks.exe
PID 2916 wrote to memory of 4296	2916	Invoice09080000pdf.exe	schtasks.exe
PID 2916 wrote to memory of 4296	2916	Invoice09080000pdf.exe	schtasks.exe
PID 2916 wrote to memory of 4768	2916	Invoice09080000pdf.exe	Invoice09080000pdf.exe
PID 2916 wrote to memory of 4768	2916	Invoice09080000pdf.exe	Invoice09080000pdf.exe
PID 2916 wrote to memory of 4768	2916	Invoice09080000pdf.exe	Invoice09080000pdf.exe
PID 2916 wrote to memory of 4768	2916	Invoice09080000pdf.exe	Invoice09080000pdf.exe
PID 2916 wrote to memory of 4768	2916	Invoice09080000pdf.exe	Invoice09080000pdf.exe
PID 2916 wrote to memory of 4768	2916	Invoice09080000pdf.exe	Invoice09080000pdf.exe
PID 2916 wrote to memory of 4768	2916	Invoice09080000pdf.exe	Invoice09080000pdf.exe
PID 2916 wrote to memory of 4768	2916	Invoice09080000pdf.exe	Invoice09080000pdf.exe
PID 4768 wrote to memory of 4324	4768	Invoice09080000pdf.exe	netsh.exe
PID 4768 wrote to memory of 4324	4768	Invoice09080000pdf.exe	netsh.exe
PID 4768 wrote to memory of 4324	4768	Invoice09080000pdf.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

Invoice09080000pdf.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	Invoice09080000pdf.exe

outlook_win_path 1 IoCs

Processes:

Invoice09080000pdf.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	Invoice09080000pdf.exe

C:\Users\Admin\AppData\Local\Temp\Invoice09080000pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice09080000pdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2916

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SQfJRKtUYtP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp88BD.tmp"
2⤵
- Creates scheduled task(s)
PID:4296

C:\Users\Admin\AppData\Local\Temp\Invoice09080000pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice09080000pdf.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4768

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:4324

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

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\Microsoft\CLR_v2.0_32\UsageLogs\Invoice09080000pdf.exe.log
Filesize
496B

MD5
cb76b18ebed3a9f05a14aed43d35fba6

SHA1
836a4b4e351846fca08b84149cb734cb59b8c0d6

SHA256
8d0edecf54cbbdf7981c8e41a3ed8621503188a87415f9af0fb8d890b138c349

SHA512
7631141e4a6dda29452ada666326837372cd3d045f773006f63d9eff15d9432ed00029d9108a72c1a3b858377600a2aab2c9ec03764285c8801b6019babcf21c

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp88BD.tmp
Filesize
1KB

MD5
ddb1210e0d7f96a44b5d8af5bfddc8d2

SHA1
ee2e259cba54431cce628addb33e11c83aeb9d2f

SHA256
78b42d7b0e26c402414037e15e60b1acd825555f050bc4c97c9d5139109ae7a1

SHA512
82891fdfe66e1a26b38c77fd39b78de579efb01d036b0c1832d36a078792d0ca4a605fa0327b0405fd2768900d788729ef5fca34d2606426ed3b20465f1d2607

Download Submit
memory/2916-130-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/4296-131-0x0000000000000000-mapping.dmp

Download
memory/4324-137-0x0000000000000000-mapping.dmp

Download
memory/4768-133-0x0000000000000000-mapping.dmp

Download
memory/4768-134-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/4768-136-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads