agenttesla | f019e0823fd6b225d4665fd9f07eb6c711c245b6f3497c27773dd4aa8cdc82e7

General

Target

Enquiry.exe
Size

898KB
MD5

d4ab2082f217f9e476b90ae6c4cda32b
SHA1

1d3f6bac27179b7edb2fa2ac65c92225e29b2008
SHA256

8e21b25da6d1e6d4105e3099fbef0c3fc7d880bb79ed3a09b5b7361255475955
SHA512

506dcecb01f3b8c034fbdffc4e469acd190919f2cbc143315ae358bdffe4fe6e9a03d17da9ba8f79e16e142e678351d6491cf52dd91f27290267cad33dc2aa1e
SSDEEP

12288:FNzWcHK7zYheEqnwdS7hc6rYjN9MWjUn+/xv3dmSVh/vI0YkDKwLDN9ueQSlEEPK:rzmXEN6U7Bv34SPvyKKih9SqKe

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
webmail.almasroor.com
Port:
587
Username:
[email protected]
Password:
042264528

Signatures

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

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral1/memory/2972-18-0x0000000000400000-0x0000000000478000-memory.dmp	family_agenttesla
behavioral1/memory/2972-16-0x0000000000400000-0x0000000000478000-memory.dmp	family_agenttesla
behavioral1/memory/2972-14-0x0000000000400000-0x0000000000478000-memory.dmp	family_agenttesla
behavioral1/memory/2972-11-0x0000000000400000-0x0000000000478000-memory.dmp	family_agenttesla
behavioral1/memory/2972-10-0x0000000000400000-0x0000000000478000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

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

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Enquiry.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Enquiry.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Enquiry.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\HjYArO = "C:\\Users\\Admin\\AppData\\Roaming\\HjYArO\\HjYArO.exe"	Enquiry.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2248 set thread context of 2972	2248	Enquiry.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Enquiry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Enquiry.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2972	Enquiry.exe
2972	Enquiry.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2972	Enquiry.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 2972	2248	Enquiry.exe	31
PID 2248 wrote to memory of 2972	2248	Enquiry.exe	31
PID 2248 wrote to memory of 2972	2248	Enquiry.exe	31
PID 2248 wrote to memory of 2972	2248	Enquiry.exe	31
PID 2248 wrote to memory of 2972	2248	Enquiry.exe	31
PID 2248 wrote to memory of 2972	2248	Enquiry.exe	31
PID 2248 wrote to memory of 2972	2248	Enquiry.exe	31
PID 2248 wrote to memory of 2972	2248	Enquiry.exe	31
PID 2248 wrote to memory of 2972	2248	Enquiry.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Enquiry.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Enquiry.exe

C:\Users\Admin\AppData\Local\Temp\Enquiry.exe
"C:\Users\Admin\AppData\Local\Temp\Enquiry.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2248
- C:\Users\Admin\AppData\Local\Temp\Enquiry.exe
  "C:\Users\Admin\AppData\Local\Temp\Enquiry.exe"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

5

T1552

Credentials In Files

4

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2248-0-0x000000007491E000-0x000000007491F000-memory.dmp

Filesize
4KB

Download
memory/2248-1-0x0000000000950000-0x0000000000A36000-memory.dmp

Filesize
920KB

Download
memory/2248-2-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2248-3-0x00000000005D0000-0x00000000005E6000-memory.dmp

Filesize
88KB

Download
memory/2248-4-0x000000007491E000-0x000000007491F000-memory.dmp

Filesize
4KB

Download
memory/2248-5-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2248-6-0x0000000005980000-0x0000000005A3A000-memory.dmp

Filesize
744KB

Download
memory/2248-7-0x0000000004960000-0x00000000049DA000-memory.dmp

Filesize
488KB

Download
memory/2248-19-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2972-18-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2972-20-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2972-16-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2972-14-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2972-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2972-11-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2972-10-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2972-8-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2972-9-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2972-21-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2972-22-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2972-23-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2972-26-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/2972-27-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads