agenttesla | ef3bf4dc8089dc4a53a7f3c01a0ff834d4a8ad8a66ddd19282e242c1855a2a76

General

Target

OJZVQGRB.exe
Size

457KB
MD5

9176cc3a2b72f6ddc6ca7ca9f0408c8b
SHA1

5db086b22bb97d2e373f31b791ff0930bd82cb69
SHA256

a6584d03c245b4cebded9264308da12b97193ad6ae195636d9f447b6c4ce7698
SHA512

d4dae7fe898e4f7883153ee25cd1c3dc1bb57fbe04f1536d9c49169ccef119ad6865498c8c0737ccc2fee67690c53f452622d1bf95d8fdef3e5f5b22f3c82815

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.samudrapanel.com
Port:
587
Username:
[email protected]
Password:
weslali234

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/3244-139-0x0000000000400000-0x0000000000450000-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:

OJZVQGRB.exe

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

OJZVQGRB.exe

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

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

OJZVQGRB.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

OJZVQGRB.exe

description pid process target process

PID 2880 set thread context of 3244 2880 OJZVQGRB.exe OJZVQGRB.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

4244 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

OJZVQGRB.exeOJZVQGRB.exe

pid process

2880 OJZVQGRB.exe
3244 OJZVQGRB.exe
3244 OJZVQGRB.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

OJZVQGRB.exeOJZVQGRB.exe

description pid process

Token: SeDebugPrivilege 2880 OJZVQGRB.exe
Token: SeDebugPrivilege 3244 OJZVQGRB.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

OJZVQGRB.exe

pid process

3244 OJZVQGRB.exe

description	pid	process	target process
PID 2880 set thread context of 3244	2880	OJZVQGRB.exe	OJZVQGRB.exe

pid	process
4244	schtasks.exe

pid	process
2880	OJZVQGRB.exe
3244	OJZVQGRB.exe
3244	OJZVQGRB.exe

description	pid	process
Token: SeDebugPrivilege	2880	OJZVQGRB.exe
Token: SeDebugPrivilege	3244	OJZVQGRB.exe

pid	process
3244	OJZVQGRB.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

OJZVQGRB.exeOJZVQGRB.exe

description	pid	process	target process
PID 2880 wrote to memory of 4244	2880	OJZVQGRB.exe	schtasks.exe
PID 2880 wrote to memory of 4244	2880	OJZVQGRB.exe	schtasks.exe
PID 2880 wrote to memory of 4244	2880	OJZVQGRB.exe	schtasks.exe
PID 2880 wrote to memory of 3244	2880	OJZVQGRB.exe	OJZVQGRB.exe
PID 2880 wrote to memory of 3244	2880	OJZVQGRB.exe	OJZVQGRB.exe
PID 2880 wrote to memory of 3244	2880	OJZVQGRB.exe	OJZVQGRB.exe
PID 2880 wrote to memory of 3244	2880	OJZVQGRB.exe	OJZVQGRB.exe
PID 2880 wrote to memory of 3244	2880	OJZVQGRB.exe	OJZVQGRB.exe
PID 2880 wrote to memory of 3244	2880	OJZVQGRB.exe	OJZVQGRB.exe
PID 2880 wrote to memory of 3244	2880	OJZVQGRB.exe	OJZVQGRB.exe
PID 2880 wrote to memory of 3244	2880	OJZVQGRB.exe	OJZVQGRB.exe
PID 3244 wrote to memory of 1284	3244	OJZVQGRB.exe	netsh.exe
PID 3244 wrote to memory of 1284	3244	OJZVQGRB.exe	netsh.exe
PID 3244 wrote to memory of 1284	3244	OJZVQGRB.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

OJZVQGRB.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	OJZVQGRB.exe

outlook_win_path 1 IoCs

Processes:

OJZVQGRB.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	OJZVQGRB.exe

C:\Users\Admin\AppData\Local\Temp\OJZVQGRB.exe
"C:\Users\Admin\AppData\Local\Temp\OJZVQGRB.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:2880

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hXfilQolLOYnI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp94D2.tmp"
2⤵
- Creates scheduled task(s)
PID:4244

C:\Users\Admin\AppData\Local\Temp\OJZVQGRB.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:3244

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1284

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

4

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\Microsoft\CLR_v4.0_32\UsageLogs\OJZVQGRB.exe.log

Filesize
1KB

MD5
e08f822522c617a40840c62e4b0fb45e

SHA1
ae516dca4da5234be6676d3f234c19ec55725be7

SHA256
bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7

SHA512
894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp94D2.tmp

Filesize
1KB

MD5
5e2f2122704a9ab9af9fe2cfdd21524c

SHA1
0f38c33fe069120fc3e41d47e5ad2ca77fe1be55

SHA256
51f635e0ef48f5f3664bbc1e6709b5cd76fa8ae3c3366e223fd2364558bf543c

SHA512
b02d59b7292254fb19f13302940841ad8258c61ed13912d5164510ce7bc87d06ce6512b9b7ba35613090e77d4ae614c08ba845071450bacd27c0b47545e4ad23

Download Submit
memory/1284-142-0x0000000000000000-mapping.dmp

Download
memory/2880-130-0x0000000000A30000-0x0000000000AA8000-memory.dmp

Filesize
480KB

Download
memory/2880-131-0x00000000059F0000-0x0000000005F94000-memory.dmp

Filesize
5.6MB

Download
memory/2880-132-0x00000000054E0000-0x0000000005572000-memory.dmp

Filesize
584KB

Download
memory/2880-133-0x0000000005460000-0x000000000546A000-memory.dmp

Filesize
40KB

Download
memory/2880-134-0x0000000009430000-0x00000000094CC000-memory.dmp

Filesize
624KB

Download
memory/2880-135-0x00000000095D0000-0x0000000009636000-memory.dmp

Filesize
408KB

Download
memory/3244-139-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3244-138-0x0000000000000000-mapping.dmp

Download
memory/3244-141-0x0000000006330000-0x0000000006380000-memory.dmp

Filesize
320KB

Download
memory/4244-136-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads