agenttesla | 5d5ae2c33251e011015acc714d026727fd244db0e3c1338aaafa5833ac7a6a1a

General

Target

DETAILS AMOUNT.exe
Size

444KB
MD5

72f6d2e7695cbb193dd0c2feb017f627
SHA1

77f867ab0f69210e1a68347193a408345f8348f2
SHA256

28e88078dd3f0800cde733e29446add851a4223ce596ffe17ac38977cd903e37
SHA512

88ff0c60dccc644d46e7c8f06563414089c567d48d276aa5ec7d062a65051a766637760f0cc728674ee8b66dc930570b498a3afaf25a6b45fc8491019ff10ed4

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.elfengineeringintl.com
Port:
587
Username:
directortechnical@elfengineeringintl.com
Password:
HElPJvrJGA

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/1472-63-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1472-64-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1472-65-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1472-66-0x000000000044A96E-mapping.dmp	family_agenttesla
behavioral1/memory/1472-68-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1472-70-0x0000000000400000-0x0000000000450000-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:

DETAILS AMOUNT.exe

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

DETAILS AMOUNT.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DETAILS AMOUNT.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DETAILS AMOUNT.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DETAILS AMOUNT.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:

DETAILS AMOUNT.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

DETAILS AMOUNT.exe

description pid process target process

PID 1080 set thread context of 1472 1080 DETAILS AMOUNT.exe DETAILS AMOUNT.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

1960 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

DETAILS AMOUNT.exeDETAILS AMOUNT.exe

pid process

1080 DETAILS AMOUNT.exe
1472 DETAILS AMOUNT.exe
1472 DETAILS AMOUNT.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

DETAILS AMOUNT.exeDETAILS AMOUNT.exe

description pid process

Token: SeDebugPrivilege 1080 DETAILS AMOUNT.exe
Token: SeDebugPrivilege 1472 DETAILS AMOUNT.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

DETAILS AMOUNT.exe

pid process

1472 DETAILS AMOUNT.exe

description	pid	process	target process
PID 1080 set thread context of 1472	1080	DETAILS AMOUNT.exe	DETAILS AMOUNT.exe

pid	process
1960	schtasks.exe

pid	process
1080	DETAILS AMOUNT.exe
1472	DETAILS AMOUNT.exe
1472	DETAILS AMOUNT.exe

description	pid	process
Token: SeDebugPrivilege	1080	DETAILS AMOUNT.exe
Token: SeDebugPrivilege	1472	DETAILS AMOUNT.exe

pid	process
1472	DETAILS AMOUNT.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

DETAILS AMOUNT.exe

description	pid	process	target process
PID 1080 wrote to memory of 1960	1080	DETAILS AMOUNT.exe	schtasks.exe
PID 1080 wrote to memory of 1960	1080	DETAILS AMOUNT.exe	schtasks.exe
PID 1080 wrote to memory of 1960	1080	DETAILS AMOUNT.exe	schtasks.exe
PID 1080 wrote to memory of 1960	1080	DETAILS AMOUNT.exe	schtasks.exe
PID 1080 wrote to memory of 1472	1080	DETAILS AMOUNT.exe	DETAILS AMOUNT.exe
PID 1080 wrote to memory of 1472	1080	DETAILS AMOUNT.exe	DETAILS AMOUNT.exe
PID 1080 wrote to memory of 1472	1080	DETAILS AMOUNT.exe	DETAILS AMOUNT.exe
PID 1080 wrote to memory of 1472	1080	DETAILS AMOUNT.exe	DETAILS AMOUNT.exe
PID 1080 wrote to memory of 1472	1080	DETAILS AMOUNT.exe	DETAILS AMOUNT.exe
PID 1080 wrote to memory of 1472	1080	DETAILS AMOUNT.exe	DETAILS AMOUNT.exe
PID 1080 wrote to memory of 1472	1080	DETAILS AMOUNT.exe	DETAILS AMOUNT.exe
PID 1080 wrote to memory of 1472	1080	DETAILS AMOUNT.exe	DETAILS AMOUNT.exe
PID 1080 wrote to memory of 1472	1080	DETAILS AMOUNT.exe	DETAILS AMOUNT.exe

outlook_office_path 1 IoCs

Processes:

DETAILS AMOUNT.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DETAILS AMOUNT.exe

outlook_win_path 1 IoCs

Processes:

DETAILS AMOUNT.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DETAILS AMOUNT.exe

C:\Users\Admin\AppData\Local\Temp\DETAILS AMOUNT.exe
"C:\Users\Admin\AppData\Local\Temp\DETAILS AMOUNT.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:1080

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GYORCOiROgtEyc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE88C.tmp"
2⤵
- Creates scheduled task(s)
PID:1960

C:\Users\Admin\AppData\Local\Temp\DETAILS AMOUNT.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1472

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\tmpE88C.tmp
Filesize
1KB

MD5
36650ca03e7472468b6c3ee9b4780cc1

SHA1
869b7d80fad03cec1ccb1b77445696fd67c90a6f

SHA256
53774c43b09a0e358c5a819718deded3a94c0957e17df6996045696fcad58425

SHA512
4d4abe4ddb10b3ba93b0a1f92dd8fc7f184f9ccefee7b1394d599ddb3b8b4814a5f999afed48c82271dcc4412614c0e5c066d98e50b7f9f92069f9dbea51bb4a

Download Submit
memory/1080-55-0x0000000002110000-0x00000000021A2000-memory.dmp

Filesize
584KB

Download
memory/1080-56-0x0000000000490000-0x0000000000498000-memory.dmp

Filesize
32KB

Download
memory/1080-57-0x0000000007150000-0x00000000071A8000-memory.dmp

Filesize
352KB

Download
memory/1080-54-0x0000000000970000-0x00000000009E6000-memory.dmp

Filesize
472KB

Download
memory/1472-60-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1472-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1472-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1472-64-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1472-65-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1472-66-0x000000000044A96E-mapping.dmp

Download
memory/1472-68-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1472-70-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1472-71-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

Filesize
8KB

Download
memory/1960-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads