agenttesla | d98a3a4cda77115b8a6511899ef363ab54520f04eca89b2acdff16ff77c54213

General

Target

Sample.exe
Size

480KB
MD5

143c76434a422e8a2b13c95ada7b979c
SHA1

772b2879031105c051b39e7d85db6786ba75db85
SHA256

6221a1cb1542f6a5e27db19bfc3d09591b7ca0ec8b793b78a7bef9d0660e578d
SHA512

a6760042e059744fe53e953afa3345abd1b22399d733ed1331503f9ed3e1530409c4a165d8f6a65d25169636024f4d519a51137a74d5cfc6e8d8573ee6acdbfb

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.1and1.com
Port:
587
Username:
[email protected]
Password:
$Hari@prasad%2020

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/1988-61-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1988-62-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1988-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1988-64-0x000000000044710E-mapping.dmp	family_agenttesla
behavioral1/memory/1988-66-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1988-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

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:

Sample.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	Sample.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Sample.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Sample.exe

description pid process target process

PID 960 set thread context of 1988 960 Sample.exe Sample.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2000 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Sample.exe

pid process

1988 Sample.exe
1988 Sample.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Sample.exe

description pid process

Token: SeDebugPrivilege 1988 Sample.exe

description	pid	process	target process
PID 960 set thread context of 1988	960	Sample.exe	Sample.exe

pid	process
2000	schtasks.exe

pid	process
1988	Sample.exe
1988	Sample.exe

description	pid	process
Token: SeDebugPrivilege	1988	Sample.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Sample.exe

description	pid	process	target process
PID 960 wrote to memory of 2000	960	Sample.exe	schtasks.exe
PID 960 wrote to memory of 2000	960	Sample.exe	schtasks.exe
PID 960 wrote to memory of 2000	960	Sample.exe	schtasks.exe
PID 960 wrote to memory of 2000	960	Sample.exe	schtasks.exe
PID 960 wrote to memory of 1988	960	Sample.exe	Sample.exe
PID 960 wrote to memory of 1988	960	Sample.exe	Sample.exe
PID 960 wrote to memory of 1988	960	Sample.exe	Sample.exe
PID 960 wrote to memory of 1988	960	Sample.exe	Sample.exe
PID 960 wrote to memory of 1988	960	Sample.exe	Sample.exe
PID 960 wrote to memory of 1988	960	Sample.exe	Sample.exe
PID 960 wrote to memory of 1988	960	Sample.exe	Sample.exe
PID 960 wrote to memory of 1988	960	Sample.exe	Sample.exe
PID 960 wrote to memory of 1988	960	Sample.exe	Sample.exe

outlook_office_path 1 IoCs

Processes:

Sample.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	Sample.exe

outlook_win_path 1 IoCs

Processes:

Sample.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	Sample.exe

C:\Users\Admin\AppData\Local\Temp\Sample.exe
"C:\Users\Admin\AppData\Local\Temp\Sample.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:960

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NluZqu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF46E.tmp"
2⤵
- Creates scheduled task(s)
PID:2000

C:\Users\Admin\AppData\Local\Temp\Sample.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1988

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpF46E.tmp
Filesize
1KB

MD5
0abf8ee709c6a89307300e192d2522b1

SHA1
c2a85c3d56f1ff82cc78e00aaa684a74569a66f8

SHA256
87b64612f996e64c8c8db690572798d7669621c30e9e03639574d8d7756007ff

SHA512
acd76e91f593684471f547e5bd112867f22467e77a2541096a65b424bf1d8b23a1f33cae19a127ac196a4b2f911e131f5c16705e6baa27a0872136a0167952ea

Download Submit
memory/960-55-0x0000000074500000-0x0000000074AAB000-memory.dmp

Filesize
5.7MB

Download
memory/960-54-0x0000000074DC1000-0x0000000074DC3000-memory.dmp

Filesize
8KB

Download
memory/1988-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1988-58-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1988-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1988-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1988-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1988-64-0x000000000044710E-mapping.dmp

Download
memory/1988-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1988-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1988-70-0x0000000074500000-0x0000000074AAB000-memory.dmp

Filesize
5.7MB

Download
memory/2000-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads