agenttesla | 4e5ce14b2cd597bd70f739be171599d4af7f1f7108931ff38958166bd6642023

General

Target

invoice.exe
Size

465KB
MD5

94e2058fe9f2c02836c827fbb0e06ef7
SHA1

06cf03bd37a5d1c2c36bb50d3298872a63e701e0
SHA256

4e5ce14b2cd597bd70f739be171599d4af7f1f7108931ff38958166bd6642023
SHA512

904f9f394346b3df1db68dd3b4ee0ad373e6d35098d9659b49bd3f4974c2ac365a3186924114ead255da9e8dff05ec14de7a1685326be5a2526e3300c805e597

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.maxsweater.com
Port:
587
Username:
[email protected]
Password:
max1234

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/4036-124-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/4036-125-0x000000000043761E-mapping.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

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

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

invoice.exe

description pid process target process

PID 2188 set thread context of 4036 2188 invoice.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

invoice.exeRegSvcs.exe

pid process

2188 invoice.exe
2188 invoice.exe
4036 RegSvcs.exe
4036 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

invoice.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 2188 invoice.exe
Token: SeDebugPrivilege 4036 RegSvcs.exe

description	pid	process	target process
PID 2188 set thread context of 4036	2188	invoice.exe	RegSvcs.exe

pid	process
2188	invoice.exe
2188	invoice.exe
4036	RegSvcs.exe
4036	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2188	invoice.exe
Token: SeDebugPrivilege	4036	RegSvcs.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

invoice.exe

description	pid	process	target process
PID 2188 wrote to memory of 4036	2188	invoice.exe	RegSvcs.exe
PID 2188 wrote to memory of 4036	2188	invoice.exe	RegSvcs.exe
PID 2188 wrote to memory of 4036	2188	invoice.exe	RegSvcs.exe
PID 2188 wrote to memory of 4036	2188	invoice.exe	RegSvcs.exe
PID 2188 wrote to memory of 4036	2188	invoice.exe	RegSvcs.exe
PID 2188 wrote to memory of 4036	2188	invoice.exe	RegSvcs.exe
PID 2188 wrote to memory of 4036	2188	invoice.exe	RegSvcs.exe
PID 2188 wrote to memory of 4036	2188	invoice.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.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	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.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	RegSvcs.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:2188

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4036

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

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/2188-115-0x0000000000B20000-0x0000000000B21000-memory.dmp

Filesize
4KB

Download
memory/2188-117-0x0000000007D20000-0x0000000007D21000-memory.dmp

Filesize
4KB

Download
memory/2188-118-0x00000000078C0000-0x00000000078C1000-memory.dmp

Filesize
4KB

Download
memory/2188-119-0x0000000007820000-0x0000000007D1E000-memory.dmp

Filesize
5.0MB

Download
memory/2188-120-0x00000000078B0000-0x00000000078B1000-memory.dmp

Filesize
4KB

Download
memory/2188-121-0x0000000007D10000-0x0000000007D17000-memory.dmp

Filesize
28KB

Download
memory/2188-122-0x000000000B1A0000-0x000000000B1A1000-memory.dmp

Filesize
4KB

Download
memory/2188-123-0x000000000B340000-0x000000000B398000-memory.dmp

Filesize
352KB

Download
memory/4036-124-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4036-125-0x000000000043761E-mapping.dmp

Download
memory/4036-130-0x00000000054C0000-0x00000000054C1000-memory.dmp

Filesize
4KB

Download
memory/4036-131-0x0000000005640000-0x0000000005641000-memory.dmp

Filesize
4KB

Download
memory/4036-132-0x00000000061D0000-0x00000000061D1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads