agenttesla | 99d623f75a541bd87a9d583720ee08b02de86b85c8534c6d36cfd7345b4347da

General

Target

proformainvoice.exe
Size

408KB
MD5

972a096d897c2cce9887d32209f61959
SHA1

c6adcae4ed08b25063c0df24bb67b1f772ac011f
SHA256

a55012ee806885f057a2317d3bf72f3b7e43a77c1d1d75f142b73676ec52c6c4
SHA512

8a85793223889910e986bda8004cf47004171f11302d08f577182f937900baaf5bb31084c8608013ab1ff820a67648615750163be7597ecf8b2b766d33c2f9bf

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
atn-com.pw
Port:
587
Username:
[email protected]
Password:
SjNfuyaT

Signatures

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

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral1/memory/1648-56-0x0000000000250000-0x0000000000258000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1944-61-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1944-62-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1944-63-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1944-64-0x000000000044BD7E-mapping.dmp	family_agenttesla
behavioral1/memory/1944-66-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1944-68-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla

CoreCCC Packer 1 IoCs

Detects CoreCCC packer used to load .NET malware.

Processes:

resource	yara_rule
behavioral1/memory/1648-54-0x0000000000DC0000-0x0000000000E2C000-memory.dmp	coreccc

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1648-57-0x0000000004990000-0x00000000049E8000-memory.dmp	rezer0

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:

proformainvoice.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proformainvoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proformainvoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proformainvoice.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

proformainvoice.exe

description pid process target process

PID 1648 set thread context of 1944 1648 proformainvoice.exe proformainvoice.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

proformainvoice.exe

pid process

1944 proformainvoice.exe
1944 proformainvoice.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

proformainvoice.exe

description pid process

Token: SeDebugPrivilege 1944 proformainvoice.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

proformainvoice.exe

pid process

1944 proformainvoice.exe

description	pid	process	target process
PID 1648 set thread context of 1944	1648	proformainvoice.exe	proformainvoice.exe

pid	process
1944	proformainvoice.exe
1944	proformainvoice.exe

description	pid	process
Token: SeDebugPrivilege	1944	proformainvoice.exe

pid	process
1944	proformainvoice.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

proformainvoice.exe

description	pid	process	target process
PID 1648 wrote to memory of 1944	1648	proformainvoice.exe	proformainvoice.exe
PID 1648 wrote to memory of 1944	1648	proformainvoice.exe	proformainvoice.exe
PID 1648 wrote to memory of 1944	1648	proformainvoice.exe	proformainvoice.exe
PID 1648 wrote to memory of 1944	1648	proformainvoice.exe	proformainvoice.exe
PID 1648 wrote to memory of 1944	1648	proformainvoice.exe	proformainvoice.exe
PID 1648 wrote to memory of 1944	1648	proformainvoice.exe	proformainvoice.exe
PID 1648 wrote to memory of 1944	1648	proformainvoice.exe	proformainvoice.exe
PID 1648 wrote to memory of 1944	1648	proformainvoice.exe	proformainvoice.exe
PID 1648 wrote to memory of 1944	1648	proformainvoice.exe	proformainvoice.exe

outlook_office_path 1 IoCs

Processes:

proformainvoice.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proformainvoice.exe

outlook_win_path 1 IoCs

Processes:

proformainvoice.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proformainvoice.exe

C:\Users\Admin\AppData\Local\Temp\proformainvoice.exe
"C:\Users\Admin\AppData\Local\Temp\proformainvoice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1648

C:\Users\Admin\AppData\Local\Temp\proformainvoice.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1944

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/1648-54-0x0000000000DC0000-0x0000000000E2C000-memory.dmp

Filesize
432KB

Download
memory/1648-55-0x0000000076421000-0x0000000076423000-memory.dmp

Filesize
8KB

Download
memory/1648-56-0x0000000000250000-0x0000000000258000-memory.dmp

Filesize
32KB

Download
memory/1648-57-0x0000000004990000-0x00000000049E8000-memory.dmp

Filesize
352KB

Download
memory/1944-58-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1944-59-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1944-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1944-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1944-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1944-64-0x000000000044BD7E-mapping.dmp

Download
memory/1944-66-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1944-68-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads