agenttesla | b3cc4e1f09aa77a31e7071f2a505bfe5f13f9ec3cb73997b0d4a5ac36fc710fa

Analysis

max time kernel
148s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 14:12

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General

Target

624880_ZOC10280374040_IFP_PT.exe
Size

1.5MB
MD5

a94a92a26e007e7bd968f6fb01a0095b
SHA1

f6b1610de7bdeaedfc72a3ba0cdb68078121c080
SHA256

432fc1341719ea2bcaebcee83f96b20ad7e86cdeac01870377816738f50b3b7c
SHA512

a6f911d84e14b20a147f7806649f904293513c28be444d5530f188396edde386fb183034c2a48af00ed9f9b5196c63cd63b59f60f770c20d5302382dcef9ccf6
SSDEEP

24576:82rT5JibBsR1YAcUSWcPsPQcVnJtCaYFA9M3CSLf2z4Nnjxs2+NhunQQS+PDYeoU:NpJ22R1rcUWPsPFVrCaYNSSLfY4/GTuj

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.spitalicontinental.com
Port:
587
Username:
[email protected]
Password:
ConT2016!

Signatures

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

AgentTesla payload 3 IoCs

resource	yara_rule
behavioral15/memory/1432-2-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral15/memory/1432-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral15/memory/1432-4-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\NewApp = "C:\\Users\\Admin\\AppData\\Roaming\\NewApp\\NewApp.exe"	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1692 set thread context of 1432	1692	624880_ZOC10280374040_IFP_PT.exe	30

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	624880_ZOC10280374040_IFP_PT.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1432	RegAsm.exe
1432	RegAsm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1692	624880_ZOC10280374040_IFP_PT.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1432	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1692	624880_ZOC10280374040_IFP_PT.exe
1692	624880_ZOC10280374040_IFP_PT.exe
1692	624880_ZOC10280374040_IFP_PT.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
1692	624880_ZOC10280374040_IFP_PT.exe
1692	624880_ZOC10280374040_IFP_PT.exe
1692	624880_ZOC10280374040_IFP_PT.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1432	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1692 wrote to memory of 1432	1692	624880_ZOC10280374040_IFP_PT.exe	30
PID 1692 wrote to memory of 1432	1692	624880_ZOC10280374040_IFP_PT.exe	30
PID 1692 wrote to memory of 1432	1692	624880_ZOC10280374040_IFP_PT.exe	30
PID 1692 wrote to memory of 1432	1692	624880_ZOC10280374040_IFP_PT.exe	30
PID 1692 wrote to memory of 1432	1692	624880_ZOC10280374040_IFP_PT.exe	30
PID 1692 wrote to memory of 1432	1692	624880_ZOC10280374040_IFP_PT.exe	30
PID 1692 wrote to memory of 1432	1692	624880_ZOC10280374040_IFP_PT.exe	30
PID 1692 wrote to memory of 1432	1692	624880_ZOC10280374040_IFP_PT.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\624880_ZOC10280374040_IFP_PT.exe
"C:\Users\Admin\AppData\Local\Temp\624880_ZOC10280374040_IFP_PT.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1692
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\RegAsm.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1432

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1432-2-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1432-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1432-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1432-7-0x0000000073F12000-0x0000000073F14000-memory.dmp

Filesize
8KB

Download
memory/1432-8-0x0000000073F12000-0x0000000073F14000-memory.dmp

Filesize
8KB

Download
memory/1692-0-0x0000000000820000-0x0000000000867000-memory.dmp

Filesize
284KB

Download
memory/1692-1-0x0000000000C70000-0x0000000000CB7000-memory.dmp

Filesize
284KB

Download