agenttesla | 998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2

General

Target

998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe
Size

1.6MB
MD5

5d682bef54e8edf6f8be2594112f327b
SHA1

4927f0fbfc09243506636aeee50796c78040b579
SHA256

998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2
SHA512

0e63dec4126dc32c2b601506498ff8613fe511708834851ac3d09813bc22cffa1ecdaa1787e54c290aeb87ee020fcc6859001a5b8c25f622a785abc3eeac124b
SSDEEP

49152:Iu0c++OCvkGs9FaUq1vaNfQx9EA4GDFtmhEdwkD2Y:/B3vkJ9WSNfQx9EA4oeedwkD2

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.dormakeba.com
Port:
587
Username:
[email protected]
Password:
goodnews0806658

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
behavioral1/memory/2792-2-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/2792-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/2792-5-0x0000000000400000-0x000000000044C000-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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2696 set thread context of 2792	2696	998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.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	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2792	RegAsm.exe
2792	RegAsm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2696	998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2792	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2696	998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe
2696	998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe
2696	998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
2696	998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe
2696	998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe
2696	998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 2792	2696	998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe	30
PID 2696 wrote to memory of 2792	2696	998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe	30
PID 2696 wrote to memory of 2792	2696	998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe	30
PID 2696 wrote to memory of 2792	2696	998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe	30
PID 2696 wrote to memory of 2792	2696	998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe	30
PID 2696 wrote to memory of 2792	2696	998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe	30
PID 2696 wrote to memory of 2792	2696	998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe	30
PID 2696 wrote to memory of 2792	2696	998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.exe
"C:\Users\Admin\AppData\Local\Temp\998c57b3ac3fb5ac49f307f56656e8379f8f7ca680e8a6e5b69029d6ccebffe2.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:2696
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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/2696-0-0x0000000002D40000-0x0000000002DCD000-memory.dmp

Filesize
564KB

Download
memory/2696-1-0x0000000003480000-0x000000000350D000-memory.dmp

Filesize
564KB

Download
memory/2792-2-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2792-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2792-5-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2792-7-0x0000000074132000-0x0000000074134000-memory.dmp

Filesize
8KB

Download
memory/2792-8-0x0000000074132000-0x0000000074134000-memory.dmp

Filesize
8KB

Download

Analysis

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