agenttesla | dcc30daa103f38a83d8f731cf1d6dccdfd53d20e27b6944fd328cd78149beba8

Analysis

max time kernel
130s
max time network
126s
platform
windows7_x64
resource
win7-en-20211208
submitted
20/01/2022, 19:57

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General

Target
3b490a21fb403005a3428a873ec1a609.exe
Size 812KB
Sample220120-yn9jasbdd5
SHA256 dcc30daa103f38a83d8f731cf1d6dccdfd53d20e27b6944fd328cd78149beba8
MD5 3b490a21fb403005a3428a873ec1a609
SHA1 78cd0932113905d83ba72de3bfb02d3e96a30861
SHA512 f48ee1d55b8541d8fcc82af10d77aa3cf6fcafd43dc35b7250b9982ee938c8ef1806a93cc5483a55dc612f78331ab51775a6b62bc35edc8d79b8f16c6147eaee
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
asus-tv.tk
Port
587
Username
[email protected]
Password
7213575aceACE@#$

Signatures

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

AgentTesla Payload 4 IoCs

resource	yara_rule
behavioral1/memory/636-63-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/636-62-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/636-64-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/636-65-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	3b490a21fb403005a3428a873ec1a609.exe

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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3b490a21fb403005a3428a873ec1a609.exe
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3b490a21fb403005a3428a873ec1a609.exe
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3b490a21fb403005a3428a873ec1a609.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1892 set thread context of 636	1892	3b490a21fb403005a3428a873ec1a609.exe	30

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1892	3b490a21fb403005a3428a873ec1a609.exe
1892	3b490a21fb403005a3428a873ec1a609.exe
1892	3b490a21fb403005a3428a873ec1a609.exe
636	3b490a21fb403005a3428a873ec1a609.exe
636	3b490a21fb403005a3428a873ec1a609.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1892	3b490a21fb403005a3428a873ec1a609.exe
Token: SeDebugPrivilege	636	3b490a21fb403005a3428a873ec1a609.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
636	3b490a21fb403005a3428a873ec1a609.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1892 wrote to memory of 1428	1892	3b490a21fb403005a3428a873ec1a609.exe	27
PID 1892 wrote to memory of 1428	1892	3b490a21fb403005a3428a873ec1a609.exe	27
PID 1892 wrote to memory of 1428	1892	3b490a21fb403005a3428a873ec1a609.exe	27
PID 1892 wrote to memory of 1428	1892	3b490a21fb403005a3428a873ec1a609.exe	27
PID 1892 wrote to memory of 1028	1892	3b490a21fb403005a3428a873ec1a609.exe	28
PID 1892 wrote to memory of 1028	1892	3b490a21fb403005a3428a873ec1a609.exe	28
PID 1892 wrote to memory of 1028	1892	3b490a21fb403005a3428a873ec1a609.exe	28
PID 1892 wrote to memory of 1028	1892	3b490a21fb403005a3428a873ec1a609.exe	28
PID 1892 wrote to memory of 1032	1892	3b490a21fb403005a3428a873ec1a609.exe	29
PID 1892 wrote to memory of 1032	1892	3b490a21fb403005a3428a873ec1a609.exe	29
PID 1892 wrote to memory of 1032	1892	3b490a21fb403005a3428a873ec1a609.exe	29
PID 1892 wrote to memory of 1032	1892	3b490a21fb403005a3428a873ec1a609.exe	29
PID 1892 wrote to memory of 636	1892	3b490a21fb403005a3428a873ec1a609.exe	30
PID 1892 wrote to memory of 636	1892	3b490a21fb403005a3428a873ec1a609.exe	30
PID 1892 wrote to memory of 636	1892	3b490a21fb403005a3428a873ec1a609.exe	30
PID 1892 wrote to memory of 636	1892	3b490a21fb403005a3428a873ec1a609.exe	30
PID 1892 wrote to memory of 636	1892	3b490a21fb403005a3428a873ec1a609.exe	30
PID 1892 wrote to memory of 636	1892	3b490a21fb403005a3428a873ec1a609.exe	30
PID 1892 wrote to memory of 636	1892	3b490a21fb403005a3428a873ec1a609.exe	30
PID 1892 wrote to memory of 636	1892	3b490a21fb403005a3428a873ec1a609.exe	30
PID 1892 wrote to memory of 636	1892	3b490a21fb403005a3428a873ec1a609.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3b490a21fb403005a3428a873ec1a609.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3b490a21fb403005a3428a873ec1a609.exe

C:\Users\Admin\AppData\Local\Temp\3b490a21fb403005a3428a873ec1a609.exe
"C:\Users\Admin\AppData\Local\Temp\3b490a21fb403005a3428a873ec1a609.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1892
- C:\Users\Admin\AppData\Local\Temp\3b490a21fb403005a3428a873ec1a609.exe
  "C:\Users\Admin\AppData\Local\Temp\3b490a21fb403005a3428a873ec1a609.exe"
  2⤵
  PID:1428
- C:\Users\Admin\AppData\Local\Temp\3b490a21fb403005a3428a873ec1a609.exe
  "C:\Users\Admin\AppData\Local\Temp\3b490a21fb403005a3428a873ec1a609.exe"
  2⤵
  PID:1028
- C:\Users\Admin\AppData\Local\Temp\3b490a21fb403005a3428a873ec1a609.exe
  "C:\Users\Admin\AppData\Local\Temp\3b490a21fb403005a3428a873ec1a609.exe"
  2⤵
  PID:1032
- C:\Users\Admin\AppData\Local\Temp\3b490a21fb403005a3428a873ec1a609.exe
  "C:\Users\Admin\AppData\Local\Temp\3b490a21fb403005a3428a873ec1a609.exe"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:636

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/636-62-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/636-64-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/636-68-0x0000000004B41000-0x0000000004B42000-memory.dmp

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memory/636-61-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/636-65-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/636-60-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/636-63-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/636-66-0x0000000004B40000-0x0000000004B41000-memory.dmp

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memory/1892-55-0x00000000751B1000-0x00000000751B3000-memory.dmp

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memory/1892-54-0x0000000001210000-0x00000000012E2000-memory.dmp

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memory/1892-59-0x0000000005930000-0x00000000059A0000-memory.dmp

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memory/1892-58-0x000000007EF40000-0x000000007EF41000-memory.dmp

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memory/1892-57-0x0000000000480000-0x000000000048C000-memory.dmp

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memory/1892-56-0x0000000004A90000-0x0000000004A91000-memory.dmp

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