agenttesla | 0ec65850335ec681a3eeff1a5aaa05485fa5997bbe3c669eb1bda9100bb3d67b

General

Target

invoice.exe
Size

435KB
MD5

1408f36656fc33e202b9c94a1a1e834f
SHA1

419b16277e612d1367f954bb4674d91cfbf4fea8
SHA256

d5414c39cce4d671db2abfc5879a2a2e97a60313070d37c359b01b50f201aed2
SHA512

2db1823d75dc6f7c8ee6efafd7c3c78a3668360d4fca935a9a5dbb3b056bf3d399c3714bc37ce2b108a903a24fed701deff68e3004f8c2f4cbf71c1a662c62d9

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.ionos.es
Port:
587
Username:
info@theunitysoft.de
Password:
77*TeneFe!23*montana

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/3044-134-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

InstallUtil.exe

description ioc process

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

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.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-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wspSp = "C:\\TLWHJTYB\\wspSpz\\wspSpzsYO.vbs"	invoice.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

invoice.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	invoice.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	invoice.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

invoice.exe

description pid process target process

PID 740 set thread context of 3044 740 invoice.exe InstallUtil.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2276 3044 WerFault.exe InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

InstallUtil.exe

pid process

3044 InstallUtil.exe
3044 InstallUtil.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

invoice.exe

pid process

740 invoice.exe
740 invoice.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

InstallUtil.exe

description pid process

Token: SeDebugPrivilege 3044 InstallUtil.exe

description	pid	process	target process
PID 740 set thread context of 3044	740	invoice.exe	InstallUtil.exe

pid	pid_target	process	target process
2276	3044	WerFault.exe	InstallUtil.exe

pid	process
3044	InstallUtil.exe
3044	InstallUtil.exe

pid	process
740	invoice.exe
740	invoice.exe

description	pid	process
Token: SeDebugPrivilege	3044	InstallUtil.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

invoice.exe

description	pid	process	target process
PID 740 wrote to memory of 4220	740	invoice.exe	InstallUtil.exe
PID 740 wrote to memory of 4220	740	invoice.exe	InstallUtil.exe
PID 740 wrote to memory of 4220	740	invoice.exe	InstallUtil.exe
PID 740 wrote to memory of 3044	740	invoice.exe	InstallUtil.exe
PID 740 wrote to memory of 3044	740	invoice.exe	InstallUtil.exe
PID 740 wrote to memory of 3044	740	invoice.exe	InstallUtil.exe
PID 740 wrote to memory of 3044	740	invoice.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\invoice.exe
"C:\Users\Admin\AppData\Local\Temp\invoice.exe"
1⤵
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:740

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\\\\Microsoft.NET\\\\Framework\\\\v4.0.30319\\\\InstallUtil.exe"
2⤵
PID:4220

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\\\\Microsoft.NET\\\\Framework\\\\v4.0.30319\\\\InstallUtil.exe"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 1540
3⤵
- Program crash
PID:2276

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 3044 -ip 3044
1⤵
PID:1924

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/740-130-0x0000000000610000-0x0000000000682000-memory.dmp

Filesize
456KB

Download
memory/740-131-0x0000000005750000-0x0000000005CF4000-memory.dmp

Filesize
5.6MB

Download
memory/740-132-0x00000000050F0000-0x00000000050F3000-memory.dmp

Filesize
12KB

Download
memory/3044-133-0x0000000000000000-mapping.dmp

Download
memory/3044-134-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3044-135-0x00000000053C0000-0x0000000005452000-memory.dmp

Filesize
584KB

Download
memory/3044-136-0x00000000055A0000-0x000000000563C000-memory.dmp

Filesize
624KB

Download
memory/3044-137-0x0000000005AC0000-0x0000000005B26000-memory.dmp

Filesize
408KB

Download
memory/3044-138-0x0000000006A40000-0x0000000006A90000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads