agenttesla | b1fe3e4522b701047d35e034db5ed2e9b8b10619b15f3d1a0b44b8da1a499352 | Triage

Analysis

max time kernel
123s
max time network
152s
platform
windows7_x64
resource
win7-en-20210920
submitted
21-10-2021 13:44

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General

Target

SKU10088002 loading photos and container comm inv and packing list.exe
Size

566KB
MD5

0e8b01d10cce62d28f58897bad493b57
SHA1

63cddbb8231c3f1d61fb528cb74902d047038018
SHA256

b1fe3e4522b701047d35e034db5ed2e9b8b10619b15f3d1a0b44b8da1a499352
SHA512

86506f1bb54d5f7362bfbe548737af89cf4c0afe939152619d6bd08460b086ebca47cb35b18a273e82bb27f6c7400665883635612d2245bc18509b131a9dc4ef

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.electronmash.com
Port:
587
Username:
office@electronmash.com
Password:
Zanzibar2018

Signatures

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

AgentTesla Payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/744-65-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/744-66-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/744-67-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/744-68-0x000000000043761E-mapping.dmp	family_agenttesla
behavioral1/memory/744-69-0x0000000000400000-0x000000000043C000-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

Email Collection

Processes:

SKU10088002 loading photos and container comm inv and packing list.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKU10088002 loading photos and container comm inv and packing list.exe
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKU10088002 loading photos and container comm inv and packing list.exe
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKU10088002 loading photos and container comm inv and packing list.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

SKU10088002 loading photos and container comm inv and packing list.exe

description	pid	process	target process
PID 876 set thread context of 744	876	SKU10088002 loading photos and container comm inv and packing list.exe	SKU10088002 loading photos and container comm inv and packing list.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

1752 schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

SKU10088002 loading photos and container comm inv and packing list.exe

pid	process
744	SKU10088002 loading photos and container comm inv and packing list.exe
744	SKU10088002 loading photos and container comm inv and packing list.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

SKU10088002 loading photos and container comm inv and packing list.exe

description pid process

Token: SeDebugPrivilege 744 SKU10088002 loading photos and container comm inv and packing list.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

SKU10088002 loading photos and container comm inv and packing list.exe

pid process

744 SKU10088002 loading photos and container comm inv and packing list.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

SKU10088002 loading photos and container comm inv and packing list.exe

description	pid	process	target process
PID 876 wrote to memory of 1752	876	SKU10088002 loading photos and container comm inv and packing list.exe	schtasks.exe
PID 876 wrote to memory of 1752	876	SKU10088002 loading photos and container comm inv and packing list.exe	schtasks.exe
PID 876 wrote to memory of 1752	876	SKU10088002 loading photos and container comm inv and packing list.exe	schtasks.exe
PID 876 wrote to memory of 1752	876	SKU10088002 loading photos and container comm inv and packing list.exe	schtasks.exe
PID 876 wrote to memory of 744	876	SKU10088002 loading photos and container comm inv and packing list.exe	SKU10088002 loading photos and container comm inv and packing list.exe
PID 876 wrote to memory of 744	876	SKU10088002 loading photos and container comm inv and packing list.exe	SKU10088002 loading photos and container comm inv and packing list.exe
PID 876 wrote to memory of 744	876	SKU10088002 loading photos and container comm inv and packing list.exe	SKU10088002 loading photos and container comm inv and packing list.exe
PID 876 wrote to memory of 744	876	SKU10088002 loading photos and container comm inv and packing list.exe	SKU10088002 loading photos and container comm inv and packing list.exe
PID 876 wrote to memory of 744	876	SKU10088002 loading photos and container comm inv and packing list.exe	SKU10088002 loading photos and container comm inv and packing list.exe
PID 876 wrote to memory of 744	876	SKU10088002 loading photos and container comm inv and packing list.exe	SKU10088002 loading photos and container comm inv and packing list.exe
PID 876 wrote to memory of 744	876	SKU10088002 loading photos and container comm inv and packing list.exe	SKU10088002 loading photos and container comm inv and packing list.exe
PID 876 wrote to memory of 744	876	SKU10088002 loading photos and container comm inv and packing list.exe	SKU10088002 loading photos and container comm inv and packing list.exe
PID 876 wrote to memory of 744	876	SKU10088002 loading photos and container comm inv and packing list.exe	SKU10088002 loading photos and container comm inv and packing list.exe

outlook_office_path 1 IoCs

Processes:

SKU10088002 loading photos and container comm inv and packing list.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKU10088002 loading photos and container comm inv and packing list.exe

outlook_win_path 1 IoCs

Processes:

SKU10088002 loading photos and container comm inv and packing list.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKU10088002 loading photos and container comm inv and packing list.exe

C:\Users\Admin\AppData\Local\Temp\SKU10088002 loading photos and container comm inv and packing list.exe
"C:\Users\Admin\AppData\Local\Temp\SKU10088002 loading photos and container comm inv and packing list.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:876

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PJmhGQzpevP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9B55.tmp"
2⤵
- Creates scheduled task(s)
PID:1752

C:\Users\Admin\AppData\Local\Temp\SKU10088002 loading photos and container comm inv and packing list.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:744

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

Persistence

Scheduled Task

Privilege Escalation

Scheduled Task

Defense Evasion

Credential Access

Credentials in Files

Discovery

System Information Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9B55.tmp
MD5
7ff10d145e60529fd266cf09f3131d86

SHA1
495de10c785e8c72f7b2e3d4760de2080c97d06e

SHA256
b7d41c35440c4bb105a2f687e0d4b1124b6ddf9c5c9ea2a79a01e341714a3af2

SHA512
f8e056494722ff495a8eaf2ae19097e5f435a7e9b31d3a2ee367f95b550ed9b30321f72670ad238eafd8d82781b013ad87dbe6f232ada2d04321318a7f7f720f

Download Submit
memory/744-67-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/744-64-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/744-72-0x0000000004AC1000-0x0000000004AC2000-memory.dmp

Filesize
4KB

Download
memory/744-71-0x0000000004AC0000-0x0000000004AC1000-memory.dmp

Filesize
4KB

Download
memory/744-65-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/744-69-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/744-68-0x000000000043761E-mapping.dmp

Download
memory/744-63-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/744-66-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/876-60-0x0000000000770000-0x00000000007A8000-memory.dmp

Filesize
224KB

Download
memory/876-56-0x0000000074F81000-0x0000000074F83000-memory.dmp

Filesize
8KB

Download
memory/876-54-0x0000000000C80000-0x0000000000C81000-memory.dmp

Filesize
4KB

Download
memory/876-57-0x00000000002A0000-0x00000000002AE000-memory.dmp

Filesize
56KB

Download
memory/876-59-0x0000000005320000-0x000000000539F000-memory.dmp

Filesize
508KB

Download
memory/876-58-0x00000000049F0000-0x00000000049F1000-memory.dmp

Filesize
4KB

Download
memory/1752-61-0x0000000000000000-mapping.dmp

Download