agenttesla | d7d80bf10094a5a68632b677a83d00f88fffde3f8c0e54797715aa0af55b4fc1

General

Target

New Inquiry.exe
Size

512KB
MD5

8d11fb42f622b79bcbce3728437a049c
SHA1

fbc0487e13597ca7982ecabfffb3abd2fd9483e3
SHA256

b99e2897de9619797de119549af26eea284174a127d0757df613c1157faba6ce
SHA512

c4de6e71b5c570d82e75f6491939f693295e7daa4f421d3bbeb078bf38374df46ae1f51d896247fbc8dad010c7f19924c1154ed250c44d07371fb08656d77316

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.cometgroup-eg.com
Port:
587
Username:
[email protected]
Password:
Rcomet%group@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/1536-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1536-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1536-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1536-66-0x00000000004471FE-mapping.dmp	family_agenttesla
behavioral1/memory/1536-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1536-70-0x0000000000400000-0x000000000044C000-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:

New Inquiry.exe

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

New Inquiry.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Inquiry.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Inquiry.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Inquiry.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:

New Inquiry.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

New Inquiry.exe

description pid process target process

PID 684 set thread context of 1536 684 New Inquiry.exe New Inquiry.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

1896 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

New Inquiry.exe

pid process

1536 New Inquiry.exe
1536 New Inquiry.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

New Inquiry.exeNew Inquiry.exe

description pid process

Token: SeDebugPrivilege 684 New Inquiry.exe
Token: SeDebugPrivilege 1536 New Inquiry.exe

description	pid	process	target process
PID 684 set thread context of 1536	684	New Inquiry.exe	New Inquiry.exe

pid	process
1896	schtasks.exe

pid	process
1536	New Inquiry.exe
1536	New Inquiry.exe

description	pid	process
Token: SeDebugPrivilege	684	New Inquiry.exe
Token: SeDebugPrivilege	1536	New Inquiry.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

New Inquiry.exe

description	pid	process	target process
PID 684 wrote to memory of 1896	684	New Inquiry.exe	schtasks.exe
PID 684 wrote to memory of 1896	684	New Inquiry.exe	schtasks.exe
PID 684 wrote to memory of 1896	684	New Inquiry.exe	schtasks.exe
PID 684 wrote to memory of 1896	684	New Inquiry.exe	schtasks.exe
PID 684 wrote to memory of 1536	684	New Inquiry.exe	New Inquiry.exe
PID 684 wrote to memory of 1536	684	New Inquiry.exe	New Inquiry.exe
PID 684 wrote to memory of 1536	684	New Inquiry.exe	New Inquiry.exe
PID 684 wrote to memory of 1536	684	New Inquiry.exe	New Inquiry.exe
PID 684 wrote to memory of 1536	684	New Inquiry.exe	New Inquiry.exe
PID 684 wrote to memory of 1536	684	New Inquiry.exe	New Inquiry.exe
PID 684 wrote to memory of 1536	684	New Inquiry.exe	New Inquiry.exe
PID 684 wrote to memory of 1536	684	New Inquiry.exe	New Inquiry.exe
PID 684 wrote to memory of 1536	684	New Inquiry.exe	New Inquiry.exe

outlook_office_path 1 IoCs

Processes:

New Inquiry.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Inquiry.exe

outlook_win_path 1 IoCs

Processes:

New Inquiry.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Inquiry.exe

C:\Users\Admin\AppData\Local\Temp\New Inquiry.exe
"C:\Users\Admin\AppData\Local\Temp\New Inquiry.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:684

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zHhnxcwpaTNbYO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC505.tmp"
2⤵
- Creates scheduled task(s)
PID:1896

C:\Users\Admin\AppData\Local\Temp\New Inquiry.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1536

Network

MITRE ATT&CK Enterprise 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

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC505.tmp

Filesize
1KB

MD5
663d8f8fb026e11ab9fac7306ca6afcf

SHA1
8caa356423250b1b960ac5bd413afdca6224cc1e

SHA256
282d5ae5e15f4a24f5254f56bf139f433ecd2456b16331c970a3cbc97628168c

SHA512
25e39da66f892490459726d6a9f6e7b459c7bf5c2d4519a231890ab446180fc937f5f0f6e6c143c47e2000dc70490140d1f483902c889735fa49b42a58a9dd9d

Download Submit
memory/684-55-0x00000000753B1000-0x00000000753B3000-memory.dmp

Filesize
8KB

Download
memory/684-56-0x00000000004B0000-0x00000000004B8000-memory.dmp

Filesize
32KB

Download
memory/684-57-0x0000000004CD0000-0x0000000004D24000-memory.dmp

Filesize
336KB

Download
memory/684-54-0x0000000000A00000-0x0000000000A84000-memory.dmp

Filesize
528KB

Download
memory/1536-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1536-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1536-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1536-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1536-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1536-66-0x00000000004471FE-mapping.dmp

Download
memory/1536-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1536-70-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1896-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads