agenttesla | a91c94f163e9c6010acecd0e0407f0c7ec1e472f5f899c3189ec57bcc3e3d696

General

Target

IMG_530000453128990453.scr
Size

829KB
MD5

3ac4826e47cef5ee17bf249ceac93efa
SHA1

80683d9daa055033c5156ac5fa64057d3d6f8106
SHA256

1afdb98e49369ba0656bf25320298cea5fb246e651499836028cc342b6c9e805
SHA512

a8e621d15a3cc6c4f6e9f439bf006db45a28f6f676d47187232244ca624042729e8c9a10991d041c0c1a4276184c8308284fc216070defc3ce4b3986f31f3a54
SSDEEP

12288:at/JBIuPj/D9wd8MwUccWG+D/4FXIfRlaadlBhdA6Os5P/Zdhs0Ji:aZfjj79woXT4FuRla8hdhFP/Zd

Score

10^/10

agenttesla collection discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
terry123@

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/2604-22-0x0000000000400000-0x0000000000464000-memory.dmp	family_agenttesla
behavioral1/memory/2604-19-0x0000000000400000-0x0000000000464000-memory.dmp	family_agenttesla
behavioral1/memory/2604-17-0x0000000000400000-0x0000000000464000-memory.dmp	family_agenttesla
behavioral1/memory/2604-13-0x0000000000400000-0x0000000000464000-memory.dmp	family_agenttesla
behavioral1/memory/2604-11-0x0000000000400000-0x0000000000464000-memory.dmp	family_agenttesla

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	IMG_530000453128990453.scr
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	IMG_530000453128990453.scr
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	IMG_530000453128990453.scr

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2232 set thread context of 2604	2232	IMG_530000453128990453.scr	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	IMG_530000453128990453.scr
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IMG_530000453128990453.scr

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2604	IMG_530000453128990453.scr
2604	IMG_530000453128990453.scr

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2604	IMG_530000453128990453.scr

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2604	2232	IMG_530000453128990453.scr	31
PID 2232 wrote to memory of 2604	2232	IMG_530000453128990453.scr	31
PID 2232 wrote to memory of 2604	2232	IMG_530000453128990453.scr	31
PID 2232 wrote to memory of 2604	2232	IMG_530000453128990453.scr	31
PID 2232 wrote to memory of 2604	2232	IMG_530000453128990453.scr	31
PID 2232 wrote to memory of 2604	2232	IMG_530000453128990453.scr	31
PID 2232 wrote to memory of 2604	2232	IMG_530000453128990453.scr	31
PID 2232 wrote to memory of 2604	2232	IMG_530000453128990453.scr	31
PID 2232 wrote to memory of 2604	2232	IMG_530000453128990453.scr	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	IMG_530000453128990453.scr

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	IMG_530000453128990453.scr

C:\Users\Admin\AppData\Local\Temp\IMG_530000453128990453.scr
"C:\Users\Admin\AppData\Local\Temp\IMG_530000453128990453.scr" /S
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Users\Admin\AppData\Local\Temp\IMG_530000453128990453.scr
  "C:\Users\Admin\AppData\Local\Temp\IMG_530000453128990453.scr"
  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:2604

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

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Downloads

memory/2232-0-0x0000000073F4E000-0x0000000073F4F000-memory.dmp

Filesize
4KB

Download
memory/2232-1-0x0000000001340000-0x0000000001416000-memory.dmp

Filesize
856KB

Download
memory/2232-2-0x00000000005A0000-0x00000000005B0000-memory.dmp

Filesize
64KB

Download
memory/2232-3-0x0000000073F40000-0x000000007462E000-memory.dmp

Filesize
6.9MB

Download
memory/2232-4-0x0000000073F4E000-0x0000000073F4F000-memory.dmp

Filesize
4KB

Download
memory/2232-5-0x0000000073F40000-0x000000007462E000-memory.dmp

Filesize
6.9MB

Download
memory/2232-6-0x00000000070B0000-0x0000000007152000-memory.dmp

Filesize
648KB

Download
memory/2232-7-0x0000000004890000-0x0000000004904000-memory.dmp

Filesize
464KB

Download
memory/2232-24-0x0000000073F40000-0x000000007462E000-memory.dmp

Filesize
6.9MB

Download
memory/2604-19-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2604-22-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2604-17-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2604-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2604-13-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2604-11-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2604-10-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2604-8-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2604-23-0x0000000073F40000-0x000000007462E000-memory.dmp

Filesize
6.9MB

Download
memory/2604-25-0x0000000073F40000-0x000000007462E000-memory.dmp

Filesize
6.9MB

Download
memory/2604-26-0x0000000073F40000-0x000000007462E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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