agenttesla | d3251e8e030bc09c1cbc4ede2a32e7502dbb5779aab30f0719c73f8ba26c06e6

Analysis

max time kernel
151s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
20-05-2022 22:19

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General

Target

YPeBi8FRoTIc8md.exe
Size

729KB
MD5

a3c32145cd008844ed15f214b02e35e4
SHA1

e082d807d559e2440438a533974eb568191001e6
SHA256

604a2f99191e372f62b11a4a1009e8adc41f43a8bbf3f26735549889914f0fc7
SHA512

a094cd2bd1112ba2c858f495c297b03180ce16f7166d264e4793fc52a4786f01f358ed8938c4c0d00b555ebf5527d469e4dd7519db2c42d55096ff7fbefc0c4b

Score

10^/10

agenttesla collection evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.rajalakshmi.co.in
Port:
587
Username:
[email protected]
Password:
016_PROjects*

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.rajalakshmi.co.in
Port:
587
Username:
[email protected]
Password:
016_PROjects*

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/3796-141-0x0000000000400000-0x000000000045C000-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:

YPeBi8FRoTIc8md.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	YPeBi8FRoTIc8md.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	YPeBi8FRoTIc8md.exe

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:

YPeBi8FRoTIc8md.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	YPeBi8FRoTIc8md.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:

YPeBi8FRoTIc8md.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	YPeBi8FRoTIc8md.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	YPeBi8FRoTIc8md.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	YPeBi8FRoTIc8md.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

YPeBi8FRoTIc8md.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NewApp = "C:\\Users\\Admin\\AppData\\Roaming\\NewApp\\NewApp.exe"	YPeBi8FRoTIc8md.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:

YPeBi8FRoTIc8md.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	YPeBi8FRoTIc8md.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	YPeBi8FRoTIc8md.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

YPeBi8FRoTIc8md.exe

description pid process target process

PID 2920 set thread context of 3796 2920 YPeBi8FRoTIc8md.exe YPeBi8FRoTIc8md.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

3388 schtasks.exe

description	pid	process	target process
PID 2920 set thread context of 3796	2920	YPeBi8FRoTIc8md.exe	YPeBi8FRoTIc8md.exe

pid	process
3388	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

YPeBi8FRoTIc8md.exeYPeBi8FRoTIc8md.exe

pid	process
2920	YPeBi8FRoTIc8md.exe
2920	YPeBi8FRoTIc8md.exe
2920	YPeBi8FRoTIc8md.exe
2920	YPeBi8FRoTIc8md.exe
2920	YPeBi8FRoTIc8md.exe
2920	YPeBi8FRoTIc8md.exe
2920	YPeBi8FRoTIc8md.exe
2920	YPeBi8FRoTIc8md.exe
3796	YPeBi8FRoTIc8md.exe
3796	YPeBi8FRoTIc8md.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

YPeBi8FRoTIc8md.exe

pid process

3796 YPeBi8FRoTIc8md.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

YPeBi8FRoTIc8md.exeYPeBi8FRoTIc8md.exe

description pid process

Token: SeDebugPrivilege 2920 YPeBi8FRoTIc8md.exe
Token: SeDebugPrivilege 3796 YPeBi8FRoTIc8md.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

YPeBi8FRoTIc8md.exe

pid process

3796 YPeBi8FRoTIc8md.exe

pid	process
3796	YPeBi8FRoTIc8md.exe

description	pid	process
Token: SeDebugPrivilege	2920	YPeBi8FRoTIc8md.exe
Token: SeDebugPrivilege	3796	YPeBi8FRoTIc8md.exe

pid	process
3796	YPeBi8FRoTIc8md.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

YPeBi8FRoTIc8md.exe

description	pid	process	target process
PID 2920 wrote to memory of 3388	2920	YPeBi8FRoTIc8md.exe	schtasks.exe
PID 2920 wrote to memory of 3388	2920	YPeBi8FRoTIc8md.exe	schtasks.exe
PID 2920 wrote to memory of 3388	2920	YPeBi8FRoTIc8md.exe	schtasks.exe
PID 2920 wrote to memory of 3720	2920	YPeBi8FRoTIc8md.exe	YPeBi8FRoTIc8md.exe
PID 2920 wrote to memory of 3720	2920	YPeBi8FRoTIc8md.exe	YPeBi8FRoTIc8md.exe
PID 2920 wrote to memory of 3720	2920	YPeBi8FRoTIc8md.exe	YPeBi8FRoTIc8md.exe
PID 2920 wrote to memory of 3708	2920	YPeBi8FRoTIc8md.exe	YPeBi8FRoTIc8md.exe
PID 2920 wrote to memory of 3708	2920	YPeBi8FRoTIc8md.exe	YPeBi8FRoTIc8md.exe
PID 2920 wrote to memory of 3708	2920	YPeBi8FRoTIc8md.exe	YPeBi8FRoTIc8md.exe
PID 2920 wrote to memory of 3796	2920	YPeBi8FRoTIc8md.exe	YPeBi8FRoTIc8md.exe
PID 2920 wrote to memory of 3796	2920	YPeBi8FRoTIc8md.exe	YPeBi8FRoTIc8md.exe
PID 2920 wrote to memory of 3796	2920	YPeBi8FRoTIc8md.exe	YPeBi8FRoTIc8md.exe
PID 2920 wrote to memory of 3796	2920	YPeBi8FRoTIc8md.exe	YPeBi8FRoTIc8md.exe
PID 2920 wrote to memory of 3796	2920	YPeBi8FRoTIc8md.exe	YPeBi8FRoTIc8md.exe
PID 2920 wrote to memory of 3796	2920	YPeBi8FRoTIc8md.exe	YPeBi8FRoTIc8md.exe
PID 2920 wrote to memory of 3796	2920	YPeBi8FRoTIc8md.exe	YPeBi8FRoTIc8md.exe
PID 2920 wrote to memory of 3796	2920	YPeBi8FRoTIc8md.exe	YPeBi8FRoTIc8md.exe

outlook_office_path 1 IoCs

Processes:

YPeBi8FRoTIc8md.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	YPeBi8FRoTIc8md.exe

outlook_win_path 1 IoCs

Processes:

YPeBi8FRoTIc8md.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	YPeBi8FRoTIc8md.exe

C:\Users\Admin\AppData\Local\Temp\YPeBi8FRoTIc8md.exe
"C:\Users\Admin\AppData\Local\Temp\YPeBi8FRoTIc8md.exe"
1⤵
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2920

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KKglLIkyG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB585.tmp"
2⤵
- Creates scheduled task(s)
PID:3388

C:\Users\Admin\AppData\Local\Temp\YPeBi8FRoTIc8md.exe
"{path}"
2⤵
PID:3720

C:\Users\Admin\AppData\Local\Temp\YPeBi8FRoTIc8md.exe
"{path}"
2⤵
PID:3708

C:\Users\Admin\AppData\Local\Temp\YPeBi8FRoTIc8md.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:3796

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\YPeBi8FRoTIc8md.exe.log

Filesize
1KB

MD5
e08f822522c617a40840c62e4b0fb45e

SHA1
ae516dca4da5234be6676d3f234c19ec55725be7

SHA256
bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7

SHA512
894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB585.tmp

Filesize
1KB

MD5
690e0bc0fb8303389fdfb2005511ddb3

SHA1
b218ac1a992c67079407eb565e8ff165938dc43f

SHA256
78fd088c7f27383d20b160c64ddd3364366369dc671b8b2e972e12cbcdd7a4e1

SHA512
3076823eac3bf94d495065a90c9c4e6f1f321af76d8380c98c139e39920309639ae2a43f4d36d0f1829858a7ad87d012d8eb5c4dfecc218fefff207ff12efa7f

Download Submit
memory/2920-131-0x00000000056E0000-0x0000000005C84000-memory.dmp

Filesize
5.6MB

Download
memory/2920-132-0x00000000051D0000-0x0000000005262000-memory.dmp

Filesize
584KB

Download
memory/2920-133-0x00000000054F0000-0x00000000054FA000-memory.dmp

Filesize
40KB

Download
memory/2920-134-0x0000000008F40000-0x0000000008FDC000-memory.dmp

Filesize
624KB

Download
memory/2920-135-0x0000000009350000-0x00000000093B6000-memory.dmp

Filesize
408KB

Download
memory/2920-130-0x0000000000760000-0x000000000081C000-memory.dmp

Filesize
752KB

Download
memory/3388-136-0x0000000000000000-mapping.dmp

Download
memory/3708-139-0x0000000000000000-mapping.dmp

Download
memory/3720-138-0x0000000000000000-mapping.dmp

Download
memory/3796-140-0x0000000000000000-mapping.dmp

Download
memory/3796-141-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/3796-143-0x00000000067B0000-0x0000000006800000-memory.dmp

Filesize
320KB

Download