agenttesla | 09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66 | Triage

Analysis

max time kernel
111s
max time network
49s
platform
windows7_x64
resource
win7-20220414-en
submitted
30-06-2022 18:54

Sharing

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General

Target

09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe
Size

452KB
MD5

6096346e1e2bb82f275e46c4d6df4ef7
SHA1

9df3021b1603d3b553d60decd4c51d6c5a172a4e
SHA256

09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66
SHA512

38adcd458daff32e41a59af73d332e801ed4e8cdde068e3ed0787b8ef3eb6ebd7010834c2bdc82038a58ee34156d4a6690a48c9b342b0e31ddeb18eeb06054e9

Score

10^/10

agenttesla collection keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.vitiren.website
Port:
587
Username:
info1@vitiren.website
Password:
paAt]S*Q&lW5-*-/

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/1692-62-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1692-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1692-66-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1692-64-0x0000000000447E5E-mapping.dmp	family_agenttesla
behavioral1/memory/1692-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1692-61-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

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

Processes:

resource	yara_rule
behavioral1/memory/624-57-0x00000000050A0000-0x00000000050F4000-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

Email Collection

Processes:

09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe

description	pid	process	target process
PID 624 set thread context of 1692	624	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe

pid	process
1692	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe
1692	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe

description pid process

Token: SeDebugPrivilege 1692 09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe

pid process

1692 09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe

description	pid	process	target process
PID 624 wrote to memory of 1692	624	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe
PID 624 wrote to memory of 1692	624	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe
PID 624 wrote to memory of 1692	624	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe
PID 624 wrote to memory of 1692	624	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe
PID 624 wrote to memory of 1692	624	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe
PID 624 wrote to memory of 1692	624	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe
PID 624 wrote to memory of 1692	624	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe
PID 624 wrote to memory of 1692	624	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe
PID 624 wrote to memory of 1692	624	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe

outlook_office_path 1 IoCs

Processes:

09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe

outlook_win_path 1 IoCs

Processes:

09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe

C:\Users\Admin\AppData\Local\Temp\09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe
"C:\Users\Admin\AppData\Local\Temp\09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:624

C:\Users\Admin\AppData\Local\Temp\09b9d9827c001738f7360e23edee4f7f4e60cbd8ccaaa9735884f9535f42ed66.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:1692

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/624-54-0x0000000000E80000-0x0000000000EF8000-memory.dmp

Filesize
480KB

Download
memory/624-55-0x0000000075801000-0x0000000075803000-memory.dmp

Filesize
8KB

Download
memory/624-56-0x00000000003F0000-0x00000000003FE000-memory.dmp

Filesize
56KB

Download
memory/624-57-0x00000000050A0000-0x00000000050F4000-memory.dmp

Filesize
336KB

Download
memory/1692-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1692-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1692-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1692-64-0x0000000000447E5E-mapping.dmp

Download
memory/1692-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1692-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1692-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1692-58-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download