agenttesla | c0a04518fc7a861d4fbb81430b82bd5e17394dfeeddff414e3f7d1966d457155

General

Target

commission invoice.exe
Size

879KB
MD5

e770121ccf7b3cddde5d6548cb9efdfe
SHA1

6b4fd83d704d5d597bb6e03cdc44c42839519e89
SHA256

f7e7f9c0172ba900708b35378e311e9a29168621ed968082f3f980f81de19c54
SHA512

4db81351423107334c31a91bbd2707022df9f6bc5dfb262d471222f6c678d5d1a8b90abb8705af5acee80e53b59251c4d18389f06b69d881b01a39fb6376a30b

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.greensudrhotel.com
Port:
587
Username:
[email protected]
Password:
Greensudr2017

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/524-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/524-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/524-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/524-66-0x000000000044725E-mapping.dmp	family_agenttesla
behavioral1/memory/524-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/524-70-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

commission invoice.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	commission invoice.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	commission invoice.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:

commission invoice.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	commission invoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	commission invoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	commission invoice.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

commission invoice.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	commission invoice.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	commission invoice.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

commission invoice.exe

description pid process target process

PID 908 set thread context of 524 908 commission invoice.exe commission invoice.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

848 schtasks.exe

description	pid	process	target process
PID 908 set thread context of 524	908	commission invoice.exe	commission invoice.exe

pid	process
848	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

commission invoice.execommission invoice.exe

pid	process
908	commission invoice.exe
908	commission invoice.exe
908	commission invoice.exe
908	commission invoice.exe
908	commission invoice.exe
524	commission invoice.exe
524	commission invoice.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

commission invoice.execommission invoice.exe

description pid process

Token: SeDebugPrivilege 908 commission invoice.exe
Token: SeDebugPrivilege 524 commission invoice.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

commission invoice.exe

pid process

524 commission invoice.exe

description	pid	process
Token: SeDebugPrivilege	908	commission invoice.exe
Token: SeDebugPrivilege	524	commission invoice.exe

pid	process
524	commission invoice.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

commission invoice.exe

description	pid	process	target process
PID 908 wrote to memory of 848	908	commission invoice.exe	schtasks.exe
PID 908 wrote to memory of 848	908	commission invoice.exe	schtasks.exe
PID 908 wrote to memory of 848	908	commission invoice.exe	schtasks.exe
PID 908 wrote to memory of 848	908	commission invoice.exe	schtasks.exe
PID 908 wrote to memory of 524	908	commission invoice.exe	commission invoice.exe
PID 908 wrote to memory of 524	908	commission invoice.exe	commission invoice.exe
PID 908 wrote to memory of 524	908	commission invoice.exe	commission invoice.exe
PID 908 wrote to memory of 524	908	commission invoice.exe	commission invoice.exe
PID 908 wrote to memory of 524	908	commission invoice.exe	commission invoice.exe
PID 908 wrote to memory of 524	908	commission invoice.exe	commission invoice.exe
PID 908 wrote to memory of 524	908	commission invoice.exe	commission invoice.exe
PID 908 wrote to memory of 524	908	commission invoice.exe	commission invoice.exe
PID 908 wrote to memory of 524	908	commission invoice.exe	commission invoice.exe

outlook_office_path 1 IoCs

Processes:

commission invoice.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	commission invoice.exe

outlook_win_path 1 IoCs

Processes:

commission invoice.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	commission invoice.exe

C:\Users\Admin\AppData\Local\Temp\commission invoice.exe
"C:\Users\Admin\AppData\Local\Temp\commission invoice.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:908

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ATjatAotT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp57A3.tmp"
2⤵
- Creates scheduled task(s)
PID:848

C:\Users\Admin\AppData\Local\Temp\commission invoice.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:524

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

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

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\Temp\tmp57A3.tmp
Filesize
1KB

MD5
cc16cf24d4b981ffa98c6a07310cf137

SHA1
5b6f6c417201cf6b65f4e0fd4a77b83e5428d48f

SHA256
4a08dec3f2928cde3923962ad7bc69225a79eb7f123f400a61a1f932254e265f

SHA512
edff9a94260474ef868901a446c49be55eb3ef817ccc266fa36552c7032eed3a344a2f9263ca1f1dbe11f166685a8a782648528100dd8d93cb01c0896a6730a2

Download Submit
memory/524-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/524-66-0x000000000044725E-mapping.dmp

Download
memory/524-71-0x00000000752A1000-0x00000000752A3000-memory.dmp

Filesize
8KB

Download
memory/524-70-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/524-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/524-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/524-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/524-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/524-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/848-58-0x0000000000000000-mapping.dmp

Download
memory/908-54-0x0000000001260000-0x0000000001342000-memory.dmp

Filesize
904KB

Download
memory/908-56-0x0000000000780000-0x00000000007E8000-memory.dmp

Filesize
416KB

Download
memory/908-55-0x0000000000330000-0x000000000033A000-memory.dmp

Filesize
40KB

Download
memory/908-57-0x0000000001210000-0x000000000125C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads