agenttesla | 485885e7fb7acedf7725c4c06222e7863207f5d99167348febc9b7a182413858

General

Target

MVHEILAN_INVpdf.exe
Size

592KB
MD5

d07b3844baa07c57e8ef119ea1c29e85
SHA1

0601eafdf5b9550b940a1255a28af2c5b4447eca
SHA256

a8602955f5fdfafa21aebee64feb294b68d8e7b85997992c560f769329e7043f
SHA512

4ea35d4591b4e205b17336ece22e99e0a0b603c0c38984f41ed2a0f417d2886ebe8aad52b1554bb9707ba94f3aeab44f10fb631f4cda52c683954e80b973fa95

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
secure231.servconfig.com
Port:
587
Username:
[email protected]
Password:
eltaefSH6548883

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
secure231.servconfig.com
Port:
587
Username:
[email protected]
Password:
eltaefSH6548883

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/1940-137-0x0000000000400000-0x0000000000452000-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:

MVHEILAN_INVpdf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	MVHEILAN_INVpdf.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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

MVHEILAN_INVpdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MVHEILAN_INVpdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MVHEILAN_INVpdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MVHEILAN_INVpdf.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

MVHEILAN_INVpdf.exe

description pid process target process

PID 4748 set thread context of 1940 4748 MVHEILAN_INVpdf.exe MVHEILAN_INVpdf.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

4964 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

MVHEILAN_INVpdf.exe

pid process

1940 MVHEILAN_INVpdf.exe
1940 MVHEILAN_INVpdf.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MVHEILAN_INVpdf.exe

description pid process

Token: SeDebugPrivilege 1940 MVHEILAN_INVpdf.exe

description	pid	process	target process
PID 4748 set thread context of 1940	4748	MVHEILAN_INVpdf.exe	MVHEILAN_INVpdf.exe

pid	process
4964	schtasks.exe

pid	process
1940	MVHEILAN_INVpdf.exe
1940	MVHEILAN_INVpdf.exe

description	pid	process
Token: SeDebugPrivilege	1940	MVHEILAN_INVpdf.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

MVHEILAN_INVpdf.exeMVHEILAN_INVpdf.exe

description	pid	process	target process
PID 4748 wrote to memory of 4964	4748	MVHEILAN_INVpdf.exe	schtasks.exe
PID 4748 wrote to memory of 4964	4748	MVHEILAN_INVpdf.exe	schtasks.exe
PID 4748 wrote to memory of 4964	4748	MVHEILAN_INVpdf.exe	schtasks.exe
PID 4748 wrote to memory of 1940	4748	MVHEILAN_INVpdf.exe	MVHEILAN_INVpdf.exe
PID 4748 wrote to memory of 1940	4748	MVHEILAN_INVpdf.exe	MVHEILAN_INVpdf.exe
PID 4748 wrote to memory of 1940	4748	MVHEILAN_INVpdf.exe	MVHEILAN_INVpdf.exe
PID 4748 wrote to memory of 1940	4748	MVHEILAN_INVpdf.exe	MVHEILAN_INVpdf.exe
PID 4748 wrote to memory of 1940	4748	MVHEILAN_INVpdf.exe	MVHEILAN_INVpdf.exe
PID 4748 wrote to memory of 1940	4748	MVHEILAN_INVpdf.exe	MVHEILAN_INVpdf.exe
PID 4748 wrote to memory of 1940	4748	MVHEILAN_INVpdf.exe	MVHEILAN_INVpdf.exe
PID 4748 wrote to memory of 1940	4748	MVHEILAN_INVpdf.exe	MVHEILAN_INVpdf.exe
PID 1940 wrote to memory of 1504	1940	MVHEILAN_INVpdf.exe	netsh.exe
PID 1940 wrote to memory of 1504	1940	MVHEILAN_INVpdf.exe	netsh.exe
PID 1940 wrote to memory of 1504	1940	MVHEILAN_INVpdf.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

MVHEILAN_INVpdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MVHEILAN_INVpdf.exe

outlook_win_path 1 IoCs

Processes:

MVHEILAN_INVpdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MVHEILAN_INVpdf.exe

C:\Users\Admin\AppData\Local\Temp\MVHEILAN_INVpdf.exe
"C:\Users\Admin\AppData\Local\Temp\MVHEILAN_INVpdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4748

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\acbsQjfGy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3B92.tmp"
2⤵
- Creates scheduled task(s)
PID:4964

C:\Users\Admin\AppData\Local\Temp\MVHEILAN_INVpdf.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1940

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1504

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\MVHEILAN_INVpdf.exe.log
Filesize
507B

MD5
ab4c71d3ff6255edd4e5c1e09540f49e

SHA1
22e06bf4e258741b5df918061871cba998c50cea

SHA256
1690fec628f775dd3c3385b800eed126b37978ef2ffd592b024052724caafb5a

SHA512
8fa7d0045796e6cda7c28e2b9a690ef550619828c1b5d0ebf8e8367aff4bf4d9f63121e5b4f199d30cb8006eb584c6767f4c59150749b8256dab9dd0ebd9f1af

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp3B92.tmp
Filesize
1KB

MD5
296d853b6d3560e62b6b20ad7a0ffba6

SHA1
ffca90438d27cf58dcd16246b080fb687be6808a

SHA256
2c2de9adc5d8c5d2c9d87199b40a80411c75a558e4541fd362ca00fd9f064ed4

SHA512
ed347cd9c8b09578d5c6bb95601920fda7e21477719866252c3b6537d1b54f385a027dd5a920e7911786d8e814f6f4c7bbb7c869a5471be340489be81efc1f49

Download Submit
memory/1504-141-0x0000000000000000-mapping.dmp

Download
memory/1940-139-0x0000000005E10000-0x0000000005E76000-memory.dmp

Filesize
408KB

Download
memory/1940-136-0x0000000000000000-mapping.dmp

Download
memory/1940-137-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1940-140-0x0000000006A20000-0x0000000006A70000-memory.dmp

Filesize
320KB

Download
memory/1940-142-0x0000000006FE0000-0x0000000006FEA000-memory.dmp

Filesize
40KB

Download
memory/4748-133-0x0000000006700000-0x0000000006CA4000-memory.dmp

Filesize
5.6MB

Download
memory/4748-132-0x0000000005AE0000-0x0000000005B72000-memory.dmp

Filesize
584KB

Download
memory/4748-130-0x0000000000F20000-0x0000000000FBA000-memory.dmp

Filesize
616KB

Download
memory/4748-131-0x0000000005930000-0x00000000059CC000-memory.dmp

Filesize
624KB

Download
memory/4964-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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