agenttesla | 5d012bef65a2f6d29f325ab5988691d6735aa574e6d8c240691bb9efb592e8a4

General

Target

qevRktR4diBlxL7.exe
Size

611KB
MD5

d95b072f6ee85a53e1e86f15cda3bfe7
SHA1

986d1ec4a7c14cd1d5959e668dfc02d893b9e91a
SHA256

5d7c6518979115ac71fbcf21c69c497357d150f5982ebd4c4e170f004091e5d6
SHA512

e60078b725d6a4478ca9e2deb5cc40b37158ac63c9631766e0fe798c2363b8128de59e3c9b6e5d2227391a501de3a5a552cd1d93bfa9532ab6f1884ca16a4162

Score

10^/10

agenttesla collection evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.wolterfan.com
Port:
587
Username:
[email protected]
Password:
@Mar123

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/268-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/268-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/268-66-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/268-67-0x000000000044C76E-mapping.dmp	family_agenttesla
behavioral1/memory/268-69-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/268-71-0x0000000000400000-0x0000000000452000-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:

qevRktR4diBlxL7.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	qevRktR4diBlxL7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	qevRktR4diBlxL7.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:

qevRktR4diBlxL7.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	qevRktR4diBlxL7.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	qevRktR4diBlxL7.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	qevRktR4diBlxL7.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

qevRktR4diBlxL7.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\CFMBUF = "C:\\Users\\Admin\\AppData\\Roaming\\CFMBUF\\CFMBUF.exe"	qevRktR4diBlxL7.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:

qevRktR4diBlxL7.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	qevRktR4diBlxL7.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	qevRktR4diBlxL7.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

qevRktR4diBlxL7.exe

description pid process target process

PID 1040 set thread context of 268 1040 qevRktR4diBlxL7.exe qevRktR4diBlxL7.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

1664 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

qevRktR4diBlxL7.exeqevRktR4diBlxL7.exe

pid process

1040 qevRktR4diBlxL7.exe
1040 qevRktR4diBlxL7.exe
1040 qevRktR4diBlxL7.exe
1040 qevRktR4diBlxL7.exe
268 qevRktR4diBlxL7.exe
268 qevRktR4diBlxL7.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

qevRktR4diBlxL7.exeqevRktR4diBlxL7.exe

description pid process

Token: SeDebugPrivilege 1040 qevRktR4diBlxL7.exe
Token: SeDebugPrivilege 268 qevRktR4diBlxL7.exe

description	pid	process	target process
PID 1040 set thread context of 268	1040	qevRktR4diBlxL7.exe	qevRktR4diBlxL7.exe

pid	process
1664	schtasks.exe

pid	process
1040	qevRktR4diBlxL7.exe
1040	qevRktR4diBlxL7.exe
1040	qevRktR4diBlxL7.exe
1040	qevRktR4diBlxL7.exe
268	qevRktR4diBlxL7.exe
268	qevRktR4diBlxL7.exe

description	pid	process
Token: SeDebugPrivilege	1040	qevRktR4diBlxL7.exe
Token: SeDebugPrivilege	268	qevRktR4diBlxL7.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

qevRktR4diBlxL7.exeqevRktR4diBlxL7.exe

description	pid	process	target process
PID 1040 wrote to memory of 1664	1040	qevRktR4diBlxL7.exe	schtasks.exe
PID 1040 wrote to memory of 1664	1040	qevRktR4diBlxL7.exe	schtasks.exe
PID 1040 wrote to memory of 1664	1040	qevRktR4diBlxL7.exe	schtasks.exe
PID 1040 wrote to memory of 1664	1040	qevRktR4diBlxL7.exe	schtasks.exe
PID 1040 wrote to memory of 560	1040	qevRktR4diBlxL7.exe	qevRktR4diBlxL7.exe
PID 1040 wrote to memory of 560	1040	qevRktR4diBlxL7.exe	qevRktR4diBlxL7.exe
PID 1040 wrote to memory of 560	1040	qevRktR4diBlxL7.exe	qevRktR4diBlxL7.exe
PID 1040 wrote to memory of 560	1040	qevRktR4diBlxL7.exe	qevRktR4diBlxL7.exe
PID 1040 wrote to memory of 268	1040	qevRktR4diBlxL7.exe	qevRktR4diBlxL7.exe
PID 1040 wrote to memory of 268	1040	qevRktR4diBlxL7.exe	qevRktR4diBlxL7.exe
PID 1040 wrote to memory of 268	1040	qevRktR4diBlxL7.exe	qevRktR4diBlxL7.exe
PID 1040 wrote to memory of 268	1040	qevRktR4diBlxL7.exe	qevRktR4diBlxL7.exe
PID 1040 wrote to memory of 268	1040	qevRktR4diBlxL7.exe	qevRktR4diBlxL7.exe
PID 1040 wrote to memory of 268	1040	qevRktR4diBlxL7.exe	qevRktR4diBlxL7.exe
PID 1040 wrote to memory of 268	1040	qevRktR4diBlxL7.exe	qevRktR4diBlxL7.exe
PID 1040 wrote to memory of 268	1040	qevRktR4diBlxL7.exe	qevRktR4diBlxL7.exe
PID 1040 wrote to memory of 268	1040	qevRktR4diBlxL7.exe	qevRktR4diBlxL7.exe
PID 268 wrote to memory of 1988	268	qevRktR4diBlxL7.exe	netsh.exe
PID 268 wrote to memory of 1988	268	qevRktR4diBlxL7.exe	netsh.exe
PID 268 wrote to memory of 1988	268	qevRktR4diBlxL7.exe	netsh.exe
PID 268 wrote to memory of 1988	268	qevRktR4diBlxL7.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

qevRktR4diBlxL7.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	qevRktR4diBlxL7.exe

outlook_win_path 1 IoCs

Processes:

qevRktR4diBlxL7.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	qevRktR4diBlxL7.exe

C:\Users\Admin\AppData\Local\Temp\qevRktR4diBlxL7.exe
"C:\Users\Admin\AppData\Local\Temp\qevRktR4diBlxL7.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:1040

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jraXuyS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2D97.tmp"
2⤵
- Creates scheduled task(s)
PID:1664

C:\Users\Admin\AppData\Local\Temp\qevRktR4diBlxL7.exe
"{path}"
2⤵
PID:560

C:\Users\Admin\AppData\Local\Temp\qevRktR4diBlxL7.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:268

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1988

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Modify Registry

1

T1112

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\tmp2D97.tmp
Filesize
1KB

MD5
14bb1f5692e4cbe483ab367d650f0d45

SHA1
360ff5c10c4e7e63775d93cec751ec9b70e030d1

SHA256
7d218c3d7ed8150b278c662569acb0879a0a5672e4c44ec8d882b43f84ba7c08

SHA512
19a7c97fc405564cfbd00858b934c7865dc3221c018855dae2013624bcc025805e6bff381cfccedfb6a06207ac7e5f0d386edb0fbc7e9d82e3db452fd61925d7

Download Submit
memory/268-67-0x000000000044C76E-mapping.dmp

Download
memory/268-66-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/268-71-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/268-69-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/268-62-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/268-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/268-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/268-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1040-56-0x00000000005B0000-0x00000000005C0000-memory.dmp

Filesize
64KB

Download
memory/1040-55-0x0000000076811000-0x0000000076813000-memory.dmp

Filesize
8KB

Download
memory/1040-54-0x0000000000AF0000-0x0000000000B90000-memory.dmp

Filesize
640KB

Download
memory/1040-58-0x0000000000AA0000-0x0000000000AF0000-memory.dmp

Filesize
320KB

Download
memory/1040-57-0x0000000005160000-0x00000000051CA000-memory.dmp

Filesize
424KB

Download
memory/1664-59-0x0000000000000000-mapping.dmp

Download
memory/1988-73-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads