agenttesla | 9414d0cec9f5df6c254c3701fe4da6d262684b8082a6374013364fc13de5db8a

General

Target

PO 2365433229 pdf.exe
Size

663KB
MD5

d8ecc17a35277af19be6e71d76b00d10
SHA1

1e3f94c205f076882ff0ae00c3bc506c29ad722b
SHA256

ff55a325bc1ebf9ab3c1d988801018b36ae2cf27d02bb8207134298994781093
SHA512

6da749276437277f5088947688a13d69fa07980ac9760f26cb54003884ef16501ca5c28ae2de04f8b81686bc4f5526a0bda6a6674e11fb90a12861159f549b14
SSDEEP

12288:6BmKMK/naA4/GM7iK2kp0/Y4RElv7voWLuHzLJR9R+qZ+ZsmR+ETyfhp1fUpxdQW:kmKX/aAXKh0/Y4R6o3H3JR9RtQt

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:
[email protected]

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral4/memory/1892-14-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	PO 2365433229 pdf.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-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 2365433229 pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 2365433229 pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 2365433229 pdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3744 set thread context of 1892	3744	PO 2365433229 pdf.exe	93

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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 2365433229 pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO 2365433229 pdf.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
5032	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1892	PO 2365433229 pdf.exe
1892	PO 2365433229 pdf.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1892	PO 2365433229 pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1892	PO 2365433229 pdf.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3744 wrote to memory of 5032	3744	PO 2365433229 pdf.exe	91
PID 3744 wrote to memory of 5032	3744	PO 2365433229 pdf.exe	91
PID 3744 wrote to memory of 5032	3744	PO 2365433229 pdf.exe	91
PID 3744 wrote to memory of 1892	3744	PO 2365433229 pdf.exe	93
PID 3744 wrote to memory of 1892	3744	PO 2365433229 pdf.exe	93
PID 3744 wrote to memory of 1892	3744	PO 2365433229 pdf.exe	93
PID 3744 wrote to memory of 1892	3744	PO 2365433229 pdf.exe	93
PID 3744 wrote to memory of 1892	3744	PO 2365433229 pdf.exe	93
PID 3744 wrote to memory of 1892	3744	PO 2365433229 pdf.exe	93
PID 3744 wrote to memory of 1892	3744	PO 2365433229 pdf.exe	93
PID 3744 wrote to memory of 1892	3744	PO 2365433229 pdf.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 2365433229 pdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 2365433229 pdf.exe

C:\Users\Admin\AppData\Local\Temp\PO 2365433229 pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PO 2365433229 pdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3744
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DGnPqaoAJRgjd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4428.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:5032
- C:\Users\Admin\AppData\Local\Temp\PO 2365433229 pdf.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

Query Registry

1

T1012

System Information Discovery

2

T1082

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

C:\Users\Admin\AppData\Local\Temp\tmp4428.tmp

Filesize
1KB

MD5
8ec3f75c609dfab47f417464d8533906

SHA1
53bf5515f1eef2975b37157418013b815ce65bce

SHA256
89f273e21fabbb7b7f2450e1c18cd99e9c3201719573592ad1ca6882952a3571

SHA512
8aaf64c1a99abd11cd833d92f611313cda62cddf9d1f84208123b085928a28313853068e2a449ec0807ee7ca8b560e4ae327b9727c3cad3c7f97797b6ac63b1f

Download Submit
memory/1892-25-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/1892-24-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/1892-23-0x00000000065C0000-0x0000000006610000-memory.dmp

Filesize
320KB

Download
memory/1892-22-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/1892-21-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/1892-20-0x0000000006230000-0x0000000006296000-memory.dmp

Filesize
408KB

Download
memory/1892-19-0x00000000055C0000-0x00000000055D8000-memory.dmp

Filesize
96KB

Download
memory/1892-18-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/1892-16-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/1892-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3744-5-0x0000000004BB0000-0x0000000004BBA000-memory.dmp

Filesize
40KB

Download
memory/3744-10-0x0000000007990000-0x0000000007A20000-memory.dmp

Filesize
576KB

Download
memory/3744-9-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/3744-17-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/3744-8-0x000000007536E000-0x000000007536F000-memory.dmp

Filesize
4KB

Download
memory/3744-7-0x0000000007550000-0x0000000007558000-memory.dmp

Filesize
32KB

Download
memory/3744-6-0x00000000075F0000-0x000000000768C000-memory.dmp

Filesize
624KB

Download
memory/3744-0-0x000000007536E000-0x000000007536F000-memory.dmp

Filesize
4KB

Download
memory/3744-4-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/3744-3-0x0000000004C20000-0x0000000004CB2000-memory.dmp

Filesize
584KB

Download
memory/3744-2-0x0000000005130000-0x00000000056D4000-memory.dmp

Filesize
5.6MB

Download
memory/3744-1-0x0000000000270000-0x000000000031C000-memory.dmp

Filesize
688KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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