agenttesla | 68f2584ddb6baf667886e3bf191128ed59209ddf7265926e6cf91da530a0146b

General

Target

INVOICE.exe
Size

463KB
MD5

563ace61f357fe73207c546cbec9c0cd
SHA1

6cc9bbe6704f4a54105502672d246e97d3c9688e
SHA256

9beb57914c705bfd2a1bfaca1bd2f4beca2a2cd8dff49229558bca04774a360a
SHA512

a48b165149fdd63b2ea95bafec0b4a22ca615530dabcb206a584d38d8cc3d7f4d1da3b64dc6096eaa4507d9bc98f115930384258873513b64b856b94d6934cda

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.dieseltronic.com.pe
Port:
587
Username:
asistente@dieseltronic.com.pe
Password:
Asdiesel2019@?%%%,

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1484-128-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/1484-129-0x000000000043763E-mapping.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

INVOICE.exe

description ioc process

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

INVOICE.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

INVOICE.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe"	INVOICE.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

INVOICE.exe

description pid process target process

PID 2432 set thread context of 1484 2432 INVOICE.exe INVOICE.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

3840 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

INVOICE.exeINVOICE.exe

pid process

2432 INVOICE.exe
1484 INVOICE.exe
1484 INVOICE.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

INVOICE.exeINVOICE.exe

description pid process

Token: SeDebugPrivilege 2432 INVOICE.exe
Token: SeDebugPrivilege 1484 INVOICE.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

INVOICE.exe

pid process

1484 INVOICE.exe

description	pid	process	target process
PID 2432 set thread context of 1484	2432	INVOICE.exe	INVOICE.exe

pid	process
3840	schtasks.exe

pid	process
2432	INVOICE.exe
1484	INVOICE.exe
1484	INVOICE.exe

description	pid	process
Token: SeDebugPrivilege	2432	INVOICE.exe
Token: SeDebugPrivilege	1484	INVOICE.exe

pid	process
1484	INVOICE.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

INVOICE.exe

description	pid	process	target process
PID 2432 wrote to memory of 3840	2432	INVOICE.exe	schtasks.exe
PID 2432 wrote to memory of 3840	2432	INVOICE.exe	schtasks.exe
PID 2432 wrote to memory of 3840	2432	INVOICE.exe	schtasks.exe
PID 2432 wrote to memory of 1484	2432	INVOICE.exe	INVOICE.exe
PID 2432 wrote to memory of 1484	2432	INVOICE.exe	INVOICE.exe
PID 2432 wrote to memory of 1484	2432	INVOICE.exe	INVOICE.exe
PID 2432 wrote to memory of 1484	2432	INVOICE.exe	INVOICE.exe
PID 2432 wrote to memory of 1484	2432	INVOICE.exe	INVOICE.exe
PID 2432 wrote to memory of 1484	2432	INVOICE.exe	INVOICE.exe
PID 2432 wrote to memory of 1484	2432	INVOICE.exe	INVOICE.exe
PID 2432 wrote to memory of 1484	2432	INVOICE.exe	INVOICE.exe

outlook_office_path 1 IoCs

Processes:

INVOICE.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE.exe

outlook_win_path 1 IoCs

Processes:

INVOICE.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICE.exe

C:\Users\Admin\AppData\Local\Temp\INVOICE.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2432

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jbRaoNBxNzlTq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4765.tmp"
2⤵
- Creates scheduled task(s)
PID:3840

C:\Users\Admin\AppData\Local\Temp\INVOICE.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:1484

Network

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\Microsoft\CLR_v4.0_32\UsageLogs\INVOICE.exe.log
MD5
90acfd72f14a512712b1a7380c0faf60

SHA1
40ba4accb8faa75887e84fb8e38d598dc8cf0f12

SHA256
20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

SHA512
29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp4765.tmp
MD5
f88c947d6b3f5166c9d30b624289f9b6

SHA1
c68dd3bb6a442f47b09d1dfe83a8cd569377cd27

SHA256
87e10436bd1204865c96f4098e37e2f20be2f312b6a7f01d39681865fa136f57

SHA512
0b03d8e88ea74aded15127ec0eff0cf527b99f2a9ec7fad88177681fe0f6b282ed3a4c721da485254df5eb454d7a701bce3ca2470ba9a4b4204b3bc0a0020396

Download Submit
memory/1484-140-0x00000000055B1000-0x00000000055B2000-memory.dmp

Filesize
4KB

Download
memory/1484-137-0x0000000006280000-0x0000000006281000-memory.dmp

Filesize
4KB

Download
memory/1484-136-0x00000000056F0000-0x00000000056F1000-memory.dmp

Filesize
4KB

Download
memory/1484-135-0x00000000055B0000-0x00000000055B1000-memory.dmp

Filesize
4KB

Download
memory/1484-129-0x000000000043763E-mapping.dmp

Download
memory/1484-128-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2432-120-0x0000000005120000-0x000000000561E000-memory.dmp

Filesize
5.0MB

Download
memory/2432-125-0x0000000007A60000-0x0000000007A98000-memory.dmp

Filesize
224KB

Download
memory/2432-124-0x00000000079E0000-0x0000000007A55000-memory.dmp

Filesize
468KB

Download
memory/2432-123-0x0000000005320000-0x0000000005325000-memory.dmp

Filesize
20KB

Download
memory/2432-122-0x0000000005340000-0x0000000005341000-memory.dmp

Filesize
4KB

Download
memory/2432-121-0x0000000002CE0000-0x0000000002CE1000-memory.dmp

Filesize
4KB

Download
memory/2432-115-0x00000000007B0000-0x00000000007B1000-memory.dmp

Filesize
4KB

Download
memory/2432-119-0x00000000051C0000-0x00000000051C1000-memory.dmp

Filesize
4KB

Download
memory/2432-118-0x0000000005620000-0x0000000005621000-memory.dmp

Filesize
4KB

Download
memory/2432-117-0x0000000005080000-0x0000000005081000-memory.dmp

Filesize
4KB

Download
memory/3840-126-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads