agenttesla | 2bffaa3bda985cdc40ec6e2b50afdd4861abc3c033cdff0b7dad164fcd4126a6

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-09-2024 18:21

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General

Target

Encomenda Fornecedor nº 72718_____PDF.exe
Size

852KB
MD5

24375a782f56c2f74089c324839498b7
SHA1

692d810e55ee330c478b50814febf6deb4d8a7a5
SHA256

ee568c524241c42a0f17daa23dedb52e377c89270ccd4cfd5ca4a8177b0f6719
SHA512

ff80044fe439a66512f9d5764f2b74fdcece9f39a7dacfab65b18f589091183fe2b9ac9ca86f104c553978b7bb72540fb107b47cbc9dc4e24b23e22f17c861ab
SSDEEP

12288:nqiqKjrw8GoDTvWR5Khf4albmpNORhrhGrUi2:nqqE8HDrdN7RakzreU7

Score

10^/10

agenttesla collection credential_access defense_evasion discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
@infinitY1234

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral1/memory/2504-213-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla

System Binary Proxy Execution: InstallUtil 1 TTPs 2 IoCs

Abuse InstallUtil to proxy execution of malicious code.

defense_evasion

InstallUtil

T1218.004

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe	Encomenda Fornecedor nº 72718_____PDF.exe
Key opened	\Registry\Machine\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Custom\InstallUtil.exe	Encomenda Fornecedor nº 72718_____PDF.exe

Executes dropped EXE 1 IoCs

pid	Process
2504	InstallUtil.exe

Loads dropped DLL 2 IoCs

pid	Process
372	Encomenda Fornecedor nº 72718_____PDF.exe
372	Encomenda Fornecedor nº 72718_____PDF.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 372 set thread context of 2504	372	Encomenda Fornecedor nº 72718_____PDF.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Encomenda Fornecedor nº 72718_____PDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
372	Encomenda Fornecedor nº 72718_____PDF.exe
2504	InstallUtil.exe
2504	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	372	Encomenda Fornecedor nº 72718_____PDF.exe
Token: SeDebugPrivilege	2504	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 372 wrote to memory of 2504	372	Encomenda Fornecedor nº 72718_____PDF.exe	31
PID 372 wrote to memory of 2504	372	Encomenda Fornecedor nº 72718_____PDF.exe	31
PID 372 wrote to memory of 2504	372	Encomenda Fornecedor nº 72718_____PDF.exe	31
PID 372 wrote to memory of 2504	372	Encomenda Fornecedor nº 72718_____PDF.exe	31
PID 372 wrote to memory of 2504	372	Encomenda Fornecedor nº 72718_____PDF.exe	31
PID 372 wrote to memory of 2504	372	Encomenda Fornecedor nº 72718_____PDF.exe	31
PID 372 wrote to memory of 2504	372	Encomenda Fornecedor nº 72718_____PDF.exe	31
PID 372 wrote to memory of 2504	372	Encomenda Fornecedor nº 72718_____PDF.exe	31
PID 372 wrote to memory of 2504	372	Encomenda Fornecedor nº 72718_____PDF.exe	31
PID 372 wrote to memory of 2504	372	Encomenda Fornecedor nº 72718_____PDF.exe	31
PID 372 wrote to memory of 2504	372	Encomenda Fornecedor nº 72718_____PDF.exe	31
PID 372 wrote to memory of 2504	372	Encomenda Fornecedor nº 72718_____PDF.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Encomenda Fornecedor nº 72718_____PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Encomenda Fornecedor nº 72718_____PDF.exe"
1⤵
- System Binary Proxy Execution: InstallUtil
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:372
- C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
  "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
  2⤵
  - Executes dropped EXE
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2504

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

System Binary Proxy Execution

T1218

InstallUtil

T1218.004

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\InstallUtil.exe

Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\AppData\Local\Temp\b1f92ac9-345d-4ee6-83d6-512dab76f3b9\i.dll

Filesize
94KB

MD5
14ff402962ad21b78ae0b4c43cd1f194

SHA1
f8a510eb26666e875a5bdd1cadad40602763ad72

SHA256
fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b

SHA512
daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b

Download Submit
memory/372-36-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-214-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download
memory/372-2-0x0000000000650000-0x000000000067C000-memory.dmp

Filesize
176KB

Download
memory/372-11-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-72-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-70-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-68-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-66-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-64-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-62-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-60-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-58-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-56-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-54-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-52-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-50-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-48-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-46-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-44-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-42-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-40-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-38-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-0-0x000000007470E000-0x000000007470F000-memory.dmp

Filesize
4KB

Download
memory/372-3-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download
memory/372-26-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-30-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-28-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-32-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-24-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-22-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-20-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-18-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-16-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-14-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-12-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/372-10-0x0000000074580000-0x0000000074600000-memory.dmp

Filesize
512KB

Download
memory/372-191-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download
memory/372-193-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download
memory/372-194-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download
memory/372-195-0x0000000000B10000-0x0000000000B1C000-memory.dmp

Filesize
48KB

Download
memory/372-1-0x0000000000180000-0x000000000025A000-memory.dmp

Filesize
872KB

Download
memory/372-34-0x0000000000650000-0x0000000000676000-memory.dmp

Filesize
152KB

Download
memory/2504-213-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2504-212-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download
memory/2504-215-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download
memory/2504-216-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download
memory/2504-217-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download