agenttesla | f79abc0493c0ff913ace29f572b8914c72cef471a08a6cf8ffdfe5e622060c0b

General

Target

PO.exe
Size

680KB
MD5

bfd4641dbe5257b5857c2602ea7b2a73
SHA1

9b159263372249b57781100d24d5baad12f978a4
SHA256

efb743ce3a7a97e5611ae39b006a8489d5c573eec8bde5f7df3c67210d4c309b
SHA512

ced64c7a825589ed83e00516e02b50db608e4ba2bfdd2e5ebaabf92d7da3a0c40123583174cb8f44a84499de00e9aba6d797b48c3ab82e340f05cad86f199931
SSDEEP

12288:JPchekXkOa0RLGdYylGc1GT7Z6ZFPqbCAM3E413vCzEzoApCJWX0nSxZYc:qhxKdYJcJDqbCAsCuXp8WX0Sxt

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.tonytonero.biz
Port:
587
Username:
[email protected]
Password:
XKdnVrM1

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
behavioral2/memory/4516-11-0x0000000000400000-0x000000000043C000-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-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2524 set thread context of 4516	2524	PO.exe	93

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.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4516	PO.exe
4516	PO.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4516	PO.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 4516	2524	PO.exe	93
PID 2524 wrote to memory of 4516	2524	PO.exe	93
PID 2524 wrote to memory of 4516	2524	PO.exe	93
PID 2524 wrote to memory of 4516	2524	PO.exe	93
PID 2524 wrote to memory of 4516	2524	PO.exe	93
PID 2524 wrote to memory of 4516	2524	PO.exe	93
PID 2524 wrote to memory of 4516	2524	PO.exe	93
PID 2524 wrote to memory of 4516	2524	PO.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe

C:\Users\Admin\AppData\Local\Temp\PO.exe
"C:\Users\Admin\AppData\Local\Temp\PO.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Users\Admin\AppData\Local\Temp\PO.exe
  "{path}"
  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:4516

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/2524-10-0x000000000C420000-0x000000000C480000-memory.dmp

Filesize
384KB

Download
memory/2524-15-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/2524-3-0x0000000005850000-0x00000000058E2000-memory.dmp

Filesize
584KB

Download
memory/2524-4-0x00000000058F0000-0x00000000058FA000-memory.dmp

Filesize
40KB

Download
memory/2524-5-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/2524-6-0x000000000C2F0000-0x000000000C38C000-memory.dmp

Filesize
624KB

Download
memory/2524-7-0x0000000005DD0000-0x0000000005DE2000-memory.dmp

Filesize
72KB

Download
memory/2524-9-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/2524-0-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

Filesize
4KB

Download
memory/2524-2-0x0000000005E00000-0x00000000063A4000-memory.dmp

Filesize
5.6MB

Download
memory/2524-8-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

Filesize
4KB

Download
memory/2524-1-0x0000000000DB0000-0x0000000000E60000-memory.dmp

Filesize
704KB

Download
memory/4516-19-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/4516-14-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/4516-16-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/4516-17-0x0000000005920000-0x0000000005938000-memory.dmp

Filesize
96KB

Download
memory/4516-18-0x00000000061E0000-0x0000000006246000-memory.dmp

Filesize
408KB

Download
memory/4516-21-0x00000000063F0000-0x0000000006440000-memory.dmp

Filesize
320KB

Download
memory/4516-20-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/4516-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing