agenttesla | a84902bbc64bef32a19bcbd8a67b8d80e00e26ddc1d38467e55461b419e56976

General

Target

KsoUkx8kQkhNBfv.exe
Size

645KB
MD5

97cd758a698d47b01edd4a3281503176
SHA1

da997a6c3491c6a0a58c69aff6a630328dae4602
SHA256

8bd67af43b81d9303bc114e81c598c9ae1cb4d55315c750ae3eea3691513c94f
SHA512

0d85f512d7669543c0f6ce4337995533755e72d36ab673a43383491e2bc1c937e62e8433c4c90f9077701243061eaca02e0d399a26b1c2c10bb3e0fbe248ffab

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
roham.dnswebhost.com
Port:
587
Username:
[email protected]
Password:
anyiego@123

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/524-62-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/524-61-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/524-63-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/524-64-0x000000000046115E-mapping.dmp	family_agenttesla
behavioral1/memory/524-66-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/524-68-0x0000000000400000-0x0000000000466000-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:

KsoUkx8kQkhNBfv.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	KsoUkx8kQkhNBfv.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	KsoUkx8kQkhNBfv.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:

KsoUkx8kQkhNBfv.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	KsoUkx8kQkhNBfv.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	KsoUkx8kQkhNBfv.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	KsoUkx8kQkhNBfv.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:

KsoUkx8kQkhNBfv.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	KsoUkx8kQkhNBfv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	KsoUkx8kQkhNBfv.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

KsoUkx8kQkhNBfv.exe

description pid process target process

PID 1668 set thread context of 524 1668 KsoUkx8kQkhNBfv.exe KsoUkx8kQkhNBfv.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

2028 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

KsoUkx8kQkhNBfv.exeKsoUkx8kQkhNBfv.exe

pid process

1668 KsoUkx8kQkhNBfv.exe
1668 KsoUkx8kQkhNBfv.exe
524 KsoUkx8kQkhNBfv.exe
524 KsoUkx8kQkhNBfv.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

KsoUkx8kQkhNBfv.exeKsoUkx8kQkhNBfv.exe

description pid process

Token: SeDebugPrivilege 1668 KsoUkx8kQkhNBfv.exe
Token: SeDebugPrivilege 524 KsoUkx8kQkhNBfv.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

KsoUkx8kQkhNBfv.exe

pid process

524 KsoUkx8kQkhNBfv.exe

description	pid	process	target process
PID 1668 set thread context of 524	1668	KsoUkx8kQkhNBfv.exe	KsoUkx8kQkhNBfv.exe

pid	process
2028	schtasks.exe

pid	process
1668	KsoUkx8kQkhNBfv.exe
1668	KsoUkx8kQkhNBfv.exe
524	KsoUkx8kQkhNBfv.exe
524	KsoUkx8kQkhNBfv.exe

description	pid	process
Token: SeDebugPrivilege	1668	KsoUkx8kQkhNBfv.exe
Token: SeDebugPrivilege	524	KsoUkx8kQkhNBfv.exe

pid	process
524	KsoUkx8kQkhNBfv.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

KsoUkx8kQkhNBfv.exe

description	pid	process	target process
PID 1668 wrote to memory of 2028	1668	KsoUkx8kQkhNBfv.exe	schtasks.exe
PID 1668 wrote to memory of 2028	1668	KsoUkx8kQkhNBfv.exe	schtasks.exe
PID 1668 wrote to memory of 2028	1668	KsoUkx8kQkhNBfv.exe	schtasks.exe
PID 1668 wrote to memory of 2028	1668	KsoUkx8kQkhNBfv.exe	schtasks.exe
PID 1668 wrote to memory of 524	1668	KsoUkx8kQkhNBfv.exe	KsoUkx8kQkhNBfv.exe
PID 1668 wrote to memory of 524	1668	KsoUkx8kQkhNBfv.exe	KsoUkx8kQkhNBfv.exe
PID 1668 wrote to memory of 524	1668	KsoUkx8kQkhNBfv.exe	KsoUkx8kQkhNBfv.exe
PID 1668 wrote to memory of 524	1668	KsoUkx8kQkhNBfv.exe	KsoUkx8kQkhNBfv.exe
PID 1668 wrote to memory of 524	1668	KsoUkx8kQkhNBfv.exe	KsoUkx8kQkhNBfv.exe
PID 1668 wrote to memory of 524	1668	KsoUkx8kQkhNBfv.exe	KsoUkx8kQkhNBfv.exe
PID 1668 wrote to memory of 524	1668	KsoUkx8kQkhNBfv.exe	KsoUkx8kQkhNBfv.exe
PID 1668 wrote to memory of 524	1668	KsoUkx8kQkhNBfv.exe	KsoUkx8kQkhNBfv.exe
PID 1668 wrote to memory of 524	1668	KsoUkx8kQkhNBfv.exe	KsoUkx8kQkhNBfv.exe

outlook_office_path 1 IoCs

Processes:

KsoUkx8kQkhNBfv.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	KsoUkx8kQkhNBfv.exe

outlook_win_path 1 IoCs

Processes:

KsoUkx8kQkhNBfv.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	KsoUkx8kQkhNBfv.exe

C:\Users\Admin\AppData\Local\Temp\KsoUkx8kQkhNBfv.exe
"C:\Users\Admin\AppData\Local\Temp\KsoUkx8kQkhNBfv.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:1668

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BXXwfEloUhOLj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8029.tmp"
2⤵
- Creates scheduled task(s)
PID:2028

C:\Users\Admin\AppData\Local\Temp\KsoUkx8kQkhNBfv.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\tmp8029.tmp
Filesize
1KB

MD5
6573540c60c46d969e8cee2281a82613

SHA1
4ba1054f55436a5de011a30399fb9e8962078286

SHA256
a290bfcd3724868f731741c9c2f7ed8cba59bf2c735bd9cf695fd6821759994c

SHA512
721059b5062edd6822b9500d388a2ec28cf0951bd2a23834f4ce150e11343693b708dbc294f8d63d6170c583b0e1c91d93e86c76e3a1f9c5e413953ef0cb2b4f

Download Submit
memory/524-62-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/524-58-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/524-59-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/524-61-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/524-63-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/524-64-0x000000000046115E-mapping.dmp

Download
memory/524-66-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/524-68-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/524-70-0x0000000074BD0000-0x000000007517B000-memory.dmp

Filesize
5.7MB

Download
memory/1668-55-0x0000000074C40000-0x00000000751EB000-memory.dmp

Filesize
5.7MB

Download
memory/1668-54-0x00000000762C1000-0x00000000762C3000-memory.dmp

Filesize
8KB

Download
memory/2028-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads