agenttesla | e1cd02a6bac6bcefb1e696dc92d75a2a60fe6d06ab4c5034a6773ea67c85c238

General

Target

Inv#678900SD.pdf.exe
Size

402KB
MD5

1d632559ef6b5cc5d7be445698d00179
SHA1

58b2a3eda775dc90030d08ecd50f190a3ac7f20f
SHA256

e9ac62c1f46fad7c6ab50764449dded69f6347e9e2cfd5a3cf7af750200c9371
SHA512

9ffc8b1df67d32f62f7ad3e473f6b1cfb4441bede27d89b1f44e20d3844392db67d72742fcb482890a584fd36369c8400e4b89bf3c7fd37f797b223cbf812296

Score

10^/10

agenttesla collection keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
henrylogsss@yandex.com
Password:
@vision123

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2000-61-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/2000-60-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/2000-62-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/2000-63-0x000000000044726E-mapping.dmp	family_agenttesla
behavioral1/memory/2000-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/2000-67-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1516-56-0x0000000000B10000-0x0000000000B64000-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:

Inv#678900SD.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Inv#678900SD.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Inv#678900SD.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Inv#678900SD.pdf.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Inv#678900SD.pdf.exe

description pid process target process

PID 1516 set thread context of 2000 1516 Inv#678900SD.pdf.exe Inv#678900SD.pdf.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Inv#678900SD.pdf.exeInv#678900SD.pdf.exe

pid process

1516 Inv#678900SD.pdf.exe
2000 Inv#678900SD.pdf.exe
2000 Inv#678900SD.pdf.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Inv#678900SD.pdf.exeInv#678900SD.pdf.exe

description pid process

Token: SeDebugPrivilege 1516 Inv#678900SD.pdf.exe
Token: SeDebugPrivilege 2000 Inv#678900SD.pdf.exe

description	pid	process	target process
PID 1516 set thread context of 2000	1516	Inv#678900SD.pdf.exe	Inv#678900SD.pdf.exe

pid	process
1516	Inv#678900SD.pdf.exe
2000	Inv#678900SD.pdf.exe
2000	Inv#678900SD.pdf.exe

description	pid	process
Token: SeDebugPrivilege	1516	Inv#678900SD.pdf.exe
Token: SeDebugPrivilege	2000	Inv#678900SD.pdf.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

Inv#678900SD.pdf.exe

description	pid	process	target process
PID 1516 wrote to memory of 2000	1516	Inv#678900SD.pdf.exe	Inv#678900SD.pdf.exe
PID 1516 wrote to memory of 2000	1516	Inv#678900SD.pdf.exe	Inv#678900SD.pdf.exe
PID 1516 wrote to memory of 2000	1516	Inv#678900SD.pdf.exe	Inv#678900SD.pdf.exe
PID 1516 wrote to memory of 2000	1516	Inv#678900SD.pdf.exe	Inv#678900SD.pdf.exe
PID 1516 wrote to memory of 2000	1516	Inv#678900SD.pdf.exe	Inv#678900SD.pdf.exe
PID 1516 wrote to memory of 2000	1516	Inv#678900SD.pdf.exe	Inv#678900SD.pdf.exe
PID 1516 wrote to memory of 2000	1516	Inv#678900SD.pdf.exe	Inv#678900SD.pdf.exe
PID 1516 wrote to memory of 2000	1516	Inv#678900SD.pdf.exe	Inv#678900SD.pdf.exe
PID 1516 wrote to memory of 2000	1516	Inv#678900SD.pdf.exe	Inv#678900SD.pdf.exe

outlook_office_path 1 IoCs

Processes:

Inv#678900SD.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Inv#678900SD.pdf.exe

outlook_win_path 1 IoCs

Processes:

Inv#678900SD.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Inv#678900SD.pdf.exe

C:\Users\Admin\AppData\Local\Temp\Inv#678900SD.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Inv#678900SD.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1516

C:\Users\Admin\AppData\Local\Temp\Inv#678900SD.pdf.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2000

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/1516-54-0x0000000000D70000-0x0000000000DDA000-memory.dmp

Filesize
424KB

Download
memory/1516-55-0x0000000000580000-0x0000000000590000-memory.dmp

Filesize
64KB

Download
memory/1516-56-0x0000000000B10000-0x0000000000B64000-memory.dmp

Filesize
336KB

Download
memory/2000-57-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2000-58-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2000-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2000-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2000-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2000-63-0x000000000044726E-mapping.dmp

Download
memory/2000-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2000-67-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2000-68-0x00000000755B1000-0x00000000755B3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads