agenttesla | 82fba18f0fd8294ba8bcce339a2380af71c4f1b8bc4f528d886ac0e5ed1e91f9

General

Target

Catalog.exe
Size

469KB
MD5

9163e51565ee60a00548fca94dc2a8e7
SHA1

44d568b4e7d99bf1c89dfc18f293986836d1c9e2
SHA256

d2a772260616ccc61555ef2c4e08d53bd33c07997e63250e6ff7e1bdc9c96238
SHA512

6ca17baa8753ef9db2f0a380cbfae6d0a8fca75aab0e9a071b951a2808aea21d1bc192b45b1bcec44324c40faa887e2cfe93538518a2173903957a2f6048023d

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
K$pbkEK0

Signatures

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

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3812-137-0x0000000000400000-0x000000000044C000-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

Processes:

Catalog.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation Catalog.exe
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
T1081
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
T1081
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
T1081

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	Catalog.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Catalog.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Catalog.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Catalog.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Catalog.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Catalog.exe

description pid process target process

PID 768 set thread context of 3812 768 Catalog.exe Catalog.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

4348 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Catalog.exe

pid process

3812 Catalog.exe
3812 Catalog.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Catalog.exe

description pid process

Token: SeDebugPrivilege 3812 Catalog.exe

description	pid	process	target process
PID 768 set thread context of 3812	768	Catalog.exe	Catalog.exe

pid	process
4348	schtasks.exe

pid	process
3812	Catalog.exe
3812	Catalog.exe

description	pid	process
Token: SeDebugPrivilege	3812	Catalog.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Catalog.exe

description	pid	process	target process
PID 768 wrote to memory of 4348	768	Catalog.exe	schtasks.exe
PID 768 wrote to memory of 4348	768	Catalog.exe	schtasks.exe
PID 768 wrote to memory of 4348	768	Catalog.exe	schtasks.exe
PID 768 wrote to memory of 3812	768	Catalog.exe	Catalog.exe
PID 768 wrote to memory of 3812	768	Catalog.exe	Catalog.exe
PID 768 wrote to memory of 3812	768	Catalog.exe	Catalog.exe
PID 768 wrote to memory of 3812	768	Catalog.exe	Catalog.exe
PID 768 wrote to memory of 3812	768	Catalog.exe	Catalog.exe
PID 768 wrote to memory of 3812	768	Catalog.exe	Catalog.exe
PID 768 wrote to memory of 3812	768	Catalog.exe	Catalog.exe
PID 768 wrote to memory of 3812	768	Catalog.exe	Catalog.exe

outlook_office_path 1 IoCs

Processes:

Catalog.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Catalog.exe

outlook_win_path 1 IoCs

Processes:

Catalog.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Catalog.exe

C:\Users\Admin\AppData\Local\Temp\Catalog.exe
"C:\Users\Admin\AppData\Local\Temp\Catalog.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:768

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QkmDKqwRhZQh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8A2F.tmp"
2⤵
- Creates scheduled task(s)
PID:4348

C:\Users\Admin\AppData\Local\Temp\Catalog.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3812

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Catalog.exe.log
Filesize
507B

MD5
76ffb2f33cb32ade8fc862a67599e9d8

SHA1
920cc4ab75b36d2f9f6e979b74db568973c49130

SHA256
f1a3724670e3379318ec9c73f6f39058cab0ab013ba3cd90c047c3d701362310

SHA512
f33502c2e1bb30c05359bfc6819ca934642a1e01874e3060349127d792694d56ad22fccd6c9477b8ee50d66db35785779324273f509576b48b7f85577e001b4e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8A2F.tmp
Filesize
1KB

MD5
48858c30c313ed6b145de90fe8a791bb

SHA1
592cb5318d620f8b9ea1aae0143992d0600c8401

SHA256
f9296403e1f0cf702d5476c136cb46b65fb2751ddc1f8566300c0321dc5571aa

SHA512
93c4210f85dd37b8e8985a935e48eeab175646a4dc301ff58ccbb457786fba271be14957d96bde41e8e5b72be970cf2edae2777390a6effeaceace721dc8d2ab

Download Submit
memory/768-130-0x0000000000CA0000-0x0000000000D1C000-memory.dmp

Filesize
496KB

Download
memory/768-131-0x0000000005AF0000-0x0000000006094000-memory.dmp

Filesize
5.6MB

Download
memory/768-132-0x00000000055E0000-0x0000000005672000-memory.dmp

Filesize
584KB

Download
memory/768-133-0x0000000005680000-0x000000000571C000-memory.dmp

Filesize
624KB

Download
memory/3812-136-0x0000000000000000-mapping.dmp

Download
memory/3812-137-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3812-139-0x0000000006120000-0x0000000006186000-memory.dmp

Filesize
408KB

Download
memory/3812-140-0x0000000006730000-0x0000000006780000-memory.dmp

Filesize
320KB

Download
memory/4348-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads