agenttesla | 34c0039596d87348848d0a28efe6d3fa77155df9cd8571eed952abe9e254f266

General

Target

SHIPPING DOCUMENTS_PDF.exe
Size

850KB
MD5

ff8964351ff2ef7ae003d14cd494efb3
SHA1

cff664fffb5c470d4d2ff5dbbdc198276cc77634
SHA256

95e22edcb0a13b44fe04a41017a585c67faf91b47177887b40b1b6190599b4ae
SHA512

2455338bd54e74bdcbcd781158f3888988a77040cf768e4295e25c56800411a76fda65fbf074d8d2edba4cea3e80b9942dee54e9634b98e9d13dad8d26287226

Score

10^/10

agenttesla evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.it-tel.eu
Port:
587
Username:
[email protected]
Password:
OZuw)N$0

Signatures

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

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1784-71-0x00000000004375EE-mapping.dmp	family_agenttesla
behavioral1/memory/1784-70-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1784-72-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Drops file in Drivers directory 1 IoCs

Processes:

SHIPPING DOCUMENTS_PDF.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts SHIPPING DOCUMENTS_PDF.exe
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	SHIPPING DOCUMENTS_PDF.exe

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:

SHIPPING DOCUMENTS_PDF.exe

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

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:

SHIPPING DOCUMENTS_PDF.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

SHIPPING DOCUMENTS_PDF.exe

description pid process target process

PID 1696 set thread context of 1784 1696 SHIPPING DOCUMENTS_PDF.exe SHIPPING DOCUMENTS_PDF.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

SHIPPING DOCUMENTS_PDF.exepowershell.exe

pid process

1784 SHIPPING DOCUMENTS_PDF.exe
1784 SHIPPING DOCUMENTS_PDF.exe
1524 powershell.exe
1524 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SHIPPING DOCUMENTS_PDF.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1784 SHIPPING DOCUMENTS_PDF.exe
Token: SeDebugPrivilege 1524 powershell.exe

description	pid	process	target process
PID 1696 set thread context of 1784	1696	SHIPPING DOCUMENTS_PDF.exe	SHIPPING DOCUMENTS_PDF.exe

pid	process
1784	SHIPPING DOCUMENTS_PDF.exe
1784	SHIPPING DOCUMENTS_PDF.exe
1524	powershell.exe
1524	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1784	SHIPPING DOCUMENTS_PDF.exe
Token: SeDebugPrivilege	1524	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

SHIPPING DOCUMENTS_PDF.exe

description	pid	process	target process
PID 1696 wrote to memory of 1524	1696	SHIPPING DOCUMENTS_PDF.exe	powershell.exe
PID 1696 wrote to memory of 1524	1696	SHIPPING DOCUMENTS_PDF.exe	powershell.exe
PID 1696 wrote to memory of 1524	1696	SHIPPING DOCUMENTS_PDF.exe	powershell.exe
PID 1696 wrote to memory of 1524	1696	SHIPPING DOCUMENTS_PDF.exe	powershell.exe
PID 1696 wrote to memory of 1784	1696	SHIPPING DOCUMENTS_PDF.exe	SHIPPING DOCUMENTS_PDF.exe
PID 1696 wrote to memory of 1784	1696	SHIPPING DOCUMENTS_PDF.exe	SHIPPING DOCUMENTS_PDF.exe
PID 1696 wrote to memory of 1784	1696	SHIPPING DOCUMENTS_PDF.exe	SHIPPING DOCUMENTS_PDF.exe
PID 1696 wrote to memory of 1784	1696	SHIPPING DOCUMENTS_PDF.exe	SHIPPING DOCUMENTS_PDF.exe
PID 1696 wrote to memory of 1784	1696	SHIPPING DOCUMENTS_PDF.exe	SHIPPING DOCUMENTS_PDF.exe
PID 1696 wrote to memory of 1784	1696	SHIPPING DOCUMENTS_PDF.exe	SHIPPING DOCUMENTS_PDF.exe
PID 1696 wrote to memory of 1784	1696	SHIPPING DOCUMENTS_PDF.exe	SHIPPING DOCUMENTS_PDF.exe
PID 1696 wrote to memory of 1784	1696	SHIPPING DOCUMENTS_PDF.exe	SHIPPING DOCUMENTS_PDF.exe
PID 1696 wrote to memory of 1784	1696	SHIPPING DOCUMENTS_PDF.exe	SHIPPING DOCUMENTS_PDF.exe

C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENTS_PDF.exe
"C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENTS_PDF.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1696

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENTS_PDF.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1524

C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENTS_PDF.exe
"C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENTS_PDF.exe"
2⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1784

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

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

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1524-75-0x0000000004732000-0x0000000004733000-memory.dmp

Filesize
4KB

Download
memory/1524-87-0x0000000005710000-0x0000000005711000-memory.dmp

Filesize
4KB

Download
memory/1524-74-0x0000000004730000-0x0000000004731000-memory.dmp

Filesize
4KB

Download
memory/1524-76-0x00000000024D0000-0x00000000024D1000-memory.dmp

Filesize
4KB

Download
memory/1524-111-0x00000000062D0000-0x00000000062D1000-memory.dmp

Filesize
4KB

Download
memory/1524-66-0x0000000000000000-mapping.dmp

Download
memory/1524-67-0x0000000075AA1000-0x0000000075AA3000-memory.dmp

Filesize
8KB

Download
memory/1524-68-0x0000000004610000-0x0000000004611000-memory.dmp

Filesize
4KB

Download
memory/1524-69-0x0000000004770000-0x0000000004771000-memory.dmp

Filesize
4KB

Download
memory/1524-110-0x00000000062C0000-0x00000000062C1000-memory.dmp

Filesize
4KB

Download
memory/1524-96-0x00000000055D0000-0x00000000055D1000-memory.dmp

Filesize
4KB

Download
memory/1524-95-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/1524-94-0x0000000006200000-0x0000000006201000-memory.dmp

Filesize
4KB

Download
memory/1524-86-0x00000000056B0000-0x00000000056B1000-memory.dmp

Filesize
4KB

Download
memory/1524-81-0x0000000005610000-0x0000000005611000-memory.dmp

Filesize
4KB

Download
memory/1524-78-0x0000000005240000-0x0000000005241000-memory.dmp

Filesize
4KB

Download
memory/1696-64-0x0000000007D30000-0x0000000007D98000-memory.dmp

Filesize
416KB

Download
memory/1696-63-0x00000000003B0000-0x00000000003B7000-memory.dmp

Filesize
28KB

Download
memory/1696-62-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/1696-65-0x0000000004880000-0x00000000048BC000-memory.dmp

Filesize
240KB

Download
memory/1696-60-0x0000000000E10000-0x0000000000E11000-memory.dmp

Filesize
4KB

Download
memory/1784-77-0x0000000004C30000-0x0000000004C31000-memory.dmp

Filesize
4KB

Download
memory/1784-112-0x0000000004C31000-0x0000000004C32000-memory.dmp

Filesize
4KB

Download
memory/1784-72-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1784-70-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1784-71-0x00000000004375EE-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads