agenttesla | 61be7282f1eb5a59f83f2219cf8cf9540fcc882431756a1d27b3a726c3bdb7f5

General

Target

Quotation.Ref#78665.Scan.exe
Size

475KB
MD5

7db4efa541d1651f4344a168c515e71e
SHA1

70ef4887da632ac22cba31b1317b4c70ff71907e
SHA256

4fcd02a6297337de81372258e0fd7d3bce08fabbd0fa91b64a3109e2e1a1ea9f
SHA512

a1b561ba277ff346aa41bf67bc84da335ab00a624e7639cb09b279b4b1a5f81cc042b16e2a13f36371f8c9ebf0b79d915adac120be32902f70b09416a5773e62

Score

10^/10

agenttesla collection coreentity evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.ametropolis.com
Port:
587
Username:
[email protected]
Password:
Gera5956

Signatures

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

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral1/memory/304-56-0x0000000000540000-0x0000000000548000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2036-63-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/2036-64-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/2036-65-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/2036-66-0x000000000044ABEE-mapping.dmp	family_agenttesla
behavioral1/memory/2036-68-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/2036-70-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/304-57-0x0000000000980000-0x00000000009D6000-memory.dmp	rezer0

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:

Quotation.Ref#78665.Scan.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Quotation.Ref#78665.Scan.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Quotation.Ref#78665.Scan.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:

Quotation.Ref#78665.Scan.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	Quotation.Ref#78665.Scan.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation.Ref#78665.Scan.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation.Ref#78665.Scan.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:

Quotation.Ref#78665.Scan.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Quotation.Ref#78665.Scan.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Quotation.Ref#78665.Scan.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Quotation.Ref#78665.Scan.exe

description pid process target process

PID 304 set thread context of 2036 304 Quotation.Ref#78665.Scan.exe Quotation.Ref#78665.Scan.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

1264 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Quotation.Ref#78665.Scan.exeQuotation.Ref#78665.Scan.exe

pid process

304 Quotation.Ref#78665.Scan.exe
2036 Quotation.Ref#78665.Scan.exe
2036 Quotation.Ref#78665.Scan.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Quotation.Ref#78665.Scan.exeQuotation.Ref#78665.Scan.exe

description pid process

Token: SeDebugPrivilege 304 Quotation.Ref#78665.Scan.exe
Token: SeDebugPrivilege 2036 Quotation.Ref#78665.Scan.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Quotation.Ref#78665.Scan.exe

pid process

2036 Quotation.Ref#78665.Scan.exe

description	pid	process	target process
PID 304 set thread context of 2036	304	Quotation.Ref#78665.Scan.exe	Quotation.Ref#78665.Scan.exe

pid	process
1264	schtasks.exe

pid	process
304	Quotation.Ref#78665.Scan.exe
2036	Quotation.Ref#78665.Scan.exe
2036	Quotation.Ref#78665.Scan.exe

description	pid	process
Token: SeDebugPrivilege	304	Quotation.Ref#78665.Scan.exe
Token: SeDebugPrivilege	2036	Quotation.Ref#78665.Scan.exe

pid	process
2036	Quotation.Ref#78665.Scan.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Quotation.Ref#78665.Scan.exeQuotation.Ref#78665.Scan.exe

description	pid	process	target process
PID 304 wrote to memory of 1264	304	Quotation.Ref#78665.Scan.exe	schtasks.exe
PID 304 wrote to memory of 1264	304	Quotation.Ref#78665.Scan.exe	schtasks.exe
PID 304 wrote to memory of 1264	304	Quotation.Ref#78665.Scan.exe	schtasks.exe
PID 304 wrote to memory of 1264	304	Quotation.Ref#78665.Scan.exe	schtasks.exe
PID 304 wrote to memory of 2036	304	Quotation.Ref#78665.Scan.exe	Quotation.Ref#78665.Scan.exe
PID 304 wrote to memory of 2036	304	Quotation.Ref#78665.Scan.exe	Quotation.Ref#78665.Scan.exe
PID 304 wrote to memory of 2036	304	Quotation.Ref#78665.Scan.exe	Quotation.Ref#78665.Scan.exe
PID 304 wrote to memory of 2036	304	Quotation.Ref#78665.Scan.exe	Quotation.Ref#78665.Scan.exe
PID 304 wrote to memory of 2036	304	Quotation.Ref#78665.Scan.exe	Quotation.Ref#78665.Scan.exe
PID 304 wrote to memory of 2036	304	Quotation.Ref#78665.Scan.exe	Quotation.Ref#78665.Scan.exe
PID 304 wrote to memory of 2036	304	Quotation.Ref#78665.Scan.exe	Quotation.Ref#78665.Scan.exe
PID 304 wrote to memory of 2036	304	Quotation.Ref#78665.Scan.exe	Quotation.Ref#78665.Scan.exe
PID 304 wrote to memory of 2036	304	Quotation.Ref#78665.Scan.exe	Quotation.Ref#78665.Scan.exe
PID 2036 wrote to memory of 524	2036	Quotation.Ref#78665.Scan.exe	netsh.exe
PID 2036 wrote to memory of 524	2036	Quotation.Ref#78665.Scan.exe	netsh.exe
PID 2036 wrote to memory of 524	2036	Quotation.Ref#78665.Scan.exe	netsh.exe
PID 2036 wrote to memory of 524	2036	Quotation.Ref#78665.Scan.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

Quotation.Ref#78665.Scan.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	Quotation.Ref#78665.Scan.exe

outlook_win_path 1 IoCs

Processes:

Quotation.Ref#78665.Scan.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	Quotation.Ref#78665.Scan.exe

C:\Users\Admin\AppData\Local\Temp\Quotation.Ref#78665.Scan.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation.Ref#78665.Scan.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:304

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TWLBrYWpSqUqYx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp874A.tmp"
2⤵
- Creates scheduled task(s)
PID:1264

C:\Users\Admin\AppData\Local\Temp\Quotation.Ref#78665.Scan.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:2036

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp874A.tmp
Filesize
1KB

MD5
f475924391887b002d8dd0a7d62bea50

SHA1
f5c53739214ef30558a655eb5dc8312ea01a9e8e

SHA256
0e029deb5b2b0abcaaa6ba0258d5d5629cac2dad7cf67e978b55c5aea178c9b5

SHA512
a90ec27d717497c1ad5f5296d154c479b9a86e195b8c46ecb30aa601f84070d7bca19060a4063d01e9e5fd3f92f64748a1f2ea3f023e88556c4a96a8631f62f6

Download Submit
memory/304-54-0x0000000000E50000-0x0000000000ED0000-memory.dmp

Filesize
512KB

Download
memory/304-55-0x0000000000570000-0x00000000005CC000-memory.dmp

Filesize
368KB

Download
memory/304-56-0x0000000000540000-0x0000000000548000-memory.dmp

Filesize
32KB

Download
memory/304-57-0x0000000000980000-0x00000000009D6000-memory.dmp

Filesize
344KB

Download
memory/524-72-0x0000000000000000-mapping.dmp

Download
memory/1264-58-0x0000000000000000-mapping.dmp

Download
memory/2036-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2036-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2036-64-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2036-65-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2036-66-0x000000000044ABEE-mapping.dmp

Download
memory/2036-68-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2036-70-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2036-71-0x0000000075311000-0x0000000075313000-memory.dmp

Filesize
8KB

Download
memory/2036-60-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads