agenttesla | be5584b9bab874b4d6ca2b0f415ee65da6a502654d461b62bf3cef3d462f0376

General

Target

PAYMENT_.scr
Size

500KB
MD5

e1334e1071e9b895ca8924b6d2be2cb9
SHA1

bad0b2e10dada8f3bdc10be85dbfdf653a15cb41
SHA256

c62d74e427c8f171115756dc18267a987b29b7d289e34daca91027bc87a5c6c9
SHA512

9a4a7d06bd518259014dbdcacddbaa702907202039c58be66fe37b8f3b094354d5ae25f7ee32eab17653ec9308a90d0c01a9ccf945b747874c6ade8a41634632

Score

10^/10

agenttesla collection keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.northwestpowdercoating.co.uk
Port:
587
Username:
[email protected]
Password:
C^0z.^LxykTW

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/1736-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1736-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1736-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1736-66-0x0000000000447ABE-mapping.dmp	family_agenttesla
behavioral1/memory/1736-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1736-70-0x0000000000400000-0x000000000044C000-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/1460-56-0x0000000000B50000-0x0000000000BA4000-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:

PAYMENT_.scr

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

PAYMENT_.scr

description pid process target process

PID 1460 set thread context of 1736 1460 PAYMENT_.scr PAYMENT_.scr
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

1716 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

PAYMENT_.scr

pid process

1736 PAYMENT_.scr
1736 PAYMENT_.scr
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

PAYMENT_.scr

description pid process

Token: SeDebugPrivilege 1736 PAYMENT_.scr
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PAYMENT_.scr

pid process

1736 PAYMENT_.scr

description	pid	process	target process
PID 1460 set thread context of 1736	1460	PAYMENT_.scr	PAYMENT_.scr

pid	process
1716	schtasks.exe

pid	process
1736	PAYMENT_.scr
1736	PAYMENT_.scr

description	pid	process
Token: SeDebugPrivilege	1736	PAYMENT_.scr

pid	process
1736	PAYMENT_.scr

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

PAYMENT_.scr

description	pid	process	target process
PID 1460 wrote to memory of 1716	1460	PAYMENT_.scr	schtasks.exe
PID 1460 wrote to memory of 1716	1460	PAYMENT_.scr	schtasks.exe
PID 1460 wrote to memory of 1716	1460	PAYMENT_.scr	schtasks.exe
PID 1460 wrote to memory of 1716	1460	PAYMENT_.scr	schtasks.exe
PID 1460 wrote to memory of 1736	1460	PAYMENT_.scr	PAYMENT_.scr
PID 1460 wrote to memory of 1736	1460	PAYMENT_.scr	PAYMENT_.scr
PID 1460 wrote to memory of 1736	1460	PAYMENT_.scr	PAYMENT_.scr
PID 1460 wrote to memory of 1736	1460	PAYMENT_.scr	PAYMENT_.scr
PID 1460 wrote to memory of 1736	1460	PAYMENT_.scr	PAYMENT_.scr
PID 1460 wrote to memory of 1736	1460	PAYMENT_.scr	PAYMENT_.scr
PID 1460 wrote to memory of 1736	1460	PAYMENT_.scr	PAYMENT_.scr
PID 1460 wrote to memory of 1736	1460	PAYMENT_.scr	PAYMENT_.scr
PID 1460 wrote to memory of 1736	1460	PAYMENT_.scr	PAYMENT_.scr

outlook_office_path 1 IoCs

Processes:

PAYMENT_.scr

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

outlook_win_path 1 IoCs

Processes:

PAYMENT_.scr

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	PAYMENT_.scr

C:\Users\Admin\AppData\Local\Temp\PAYMENT_.scr
"C:\Users\Admin\AppData\Local\Temp\PAYMENT_.scr" /S
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1460
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ElxuEN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAE1B.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1716
- C:\Users\Admin\AppData\Local\Temp\PAYMENT_.scr
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1736

Network

MITRE ATT&CK Enterprise 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

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpAE1B.tmp

Filesize
1KB

MD5
342d8832a3682c1aeebfc6d3e701075a

SHA1
9fb39af3c4dd1f9f625802b81a3d149ff8ca4808

SHA256
06cd1c2d5167b6b3546546347648402cbc8ff792b76d70788a827f5427bc7c2d

SHA512
73ce5854fa8e576599a6354608f35bc01d9572e72e02cf25c38d76fb5f27f3e51a39fafe4987872674c11a84d5b6eccb52d109768fe657e8b167cf7717d76284

Download Submit
memory/1460-54-0x0000000000EB0000-0x0000000000F32000-memory.dmp

Filesize
520KB

Download
memory/1460-55-0x0000000000210000-0x0000000000218000-memory.dmp

Filesize
32KB

Download
memory/1460-56-0x0000000000B50000-0x0000000000BA4000-memory.dmp

Filesize
336KB

Download
memory/1460-57-0x00000000763E1000-0x00000000763E3000-memory.dmp

Filesize
8KB

Download
memory/1716-58-0x0000000000000000-mapping.dmp

Download
memory/1736-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1736-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1736-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1736-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1736-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1736-66-0x0000000000447ABE-mapping.dmp

Download
memory/1736-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1736-70-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads