agenttesla | fc6d5dbcbfcc99e88122cf7321bfc682637f756d6bd18356d9e1c3b2ff6a0db9

General

Target

PO#A91642-MRKU6307240.exe
Size

465KB
MD5

f8b4f79a32c46e5b6959196be8e7aeea
SHA1

4d82774d359a2082c7114471116bd06f2422b2dd
SHA256

0541ad0262b771da064ddc3b939902047b6716ad73a175052874a3ff370cc4db
SHA512

06759793492b0667b33eb3e31e2c3a3997766a2abc27c32f1fb8819f0a3f67df4ee9570d2a8d291b074fb767479a67aa3c3a538942d68fdce49a51e953ea9cea
SSDEEP

6144:WAa3oTMCoO/lGqRmMZZlUeTQovmYWaq0UFyzInILgdchnIITHJ7lMRicE7E/DxPC:EAMCQA5ZZfTQa3UU5LgqnHx4/BhlAeF

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
Everest10

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/2992-20-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2992-16-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2992-14-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2992-24-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2992-22-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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 2 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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO#A91642-MRKU6307240.exe
Key opened	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO#A91642-MRKU6307240.exe
Key opened	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO#A91642-MRKU6307240.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2012 set thread context of 2992	2012	PO#A91642-MRKU6307240.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	PO#A91642-MRKU6307240.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO#A91642-MRKU6307240.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2012	PO#A91642-MRKU6307240.exe
2012	PO#A91642-MRKU6307240.exe
2992	PO#A91642-MRKU6307240.exe
2992	PO#A91642-MRKU6307240.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2012	PO#A91642-MRKU6307240.exe
Token: SeDebugPrivilege	2992	PO#A91642-MRKU6307240.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2012	PO#A91642-MRKU6307240.exe
2012	PO#A91642-MRKU6307240.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 2992	2012	PO#A91642-MRKU6307240.exe	30
PID 2012 wrote to memory of 2992	2012	PO#A91642-MRKU6307240.exe	30
PID 2012 wrote to memory of 2992	2012	PO#A91642-MRKU6307240.exe	30
PID 2012 wrote to memory of 2992	2012	PO#A91642-MRKU6307240.exe	30
PID 2012 wrote to memory of 2992	2012	PO#A91642-MRKU6307240.exe	30
PID 2012 wrote to memory of 2992	2012	PO#A91642-MRKU6307240.exe	30
PID 2012 wrote to memory of 2992	2012	PO#A91642-MRKU6307240.exe	30
PID 2012 wrote to memory of 2992	2012	PO#A91642-MRKU6307240.exe	30
PID 2012 wrote to memory of 2992	2012	PO#A91642-MRKU6307240.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO#A91642-MRKU6307240.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO#A91642-MRKU6307240.exe

C:\Users\Admin\AppData\Local\Temp\PO#A91642-MRKU6307240.exe
"C:\Users\Admin\AppData\Local\Temp\PO#A91642-MRKU6307240.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Users\Admin\AppData\Local\Temp\PO#A91642-MRKU6307240.exe
  "C:\Users\Admin\AppData\Local\Temp\PO#A91642-MRKU6307240.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:2992

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

2

T1552

Credentials In Files

2

T1552.001

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2012-25-0x0000000074B00000-0x00000000751EE000-memory.dmp

Filesize
6.9MB

Download
memory/2012-1-0x0000000000850000-0x00000000008CA000-memory.dmp

Filesize
488KB

Download
memory/2012-2-0x0000000074B00000-0x00000000751EE000-memory.dmp

Filesize
6.9MB

Download
memory/2012-3-0x0000000074B00000-0x00000000751EE000-memory.dmp

Filesize
6.9MB

Download
memory/2012-4-0x0000000074B00000-0x00000000751EE000-memory.dmp

Filesize
6.9MB

Download
memory/2012-5-0x0000000001F80000-0x0000000001F8C000-memory.dmp

Filesize
48KB

Download
memory/2012-6-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

Filesize
4KB

Download
memory/2012-7-0x0000000074B00000-0x00000000751EE000-memory.dmp

Filesize
6.9MB

Download
memory/2012-8-0x0000000005430000-0x00000000054A0000-memory.dmp

Filesize
448KB

Download
memory/2012-9-0x00000000044E0000-0x000000000451E000-memory.dmp

Filesize
248KB

Download
memory/2012-0-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

Filesize
4KB

Download
memory/2992-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2992-20-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2992-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2992-16-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2992-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2992-24-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2992-22-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2992-12-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2992-26-0x0000000074B00000-0x00000000751EE000-memory.dmp

Filesize
6.9MB

Download
memory/2992-27-0x0000000074B00000-0x00000000751EE000-memory.dmp

Filesize
6.9MB

Download
memory/2992-28-0x0000000074B00000-0x00000000751EE000-memory.dmp

Filesize
6.9MB

Download
memory/2992-29-0x0000000074B00000-0x00000000751EE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing