agenttesla | f748b82467e71bd1b2a1a12c128e8c66425be3054f5144b000cc94f52383fa19

General

Target

company profile and order.exe
Size

541KB
MD5

901d22562d31a9e1c5db78101f5a1a5b
SHA1

5bb7d889b40ab7bf7565f5709ec85806624f262f
SHA256

17b08a5f3af74a6f01300f637e6975b4d42a04b3c1f5825a86106adc48f51608
SHA512

a7c094689266752791228a518c725e2f36a45bb5ef47c5a9020cabad3f35ca5f3057db44dcc4ff4ed7879e40755af4ebe165ea50735774478c4aca414f2a3e56

Score

10^/10

agenttesla collection coreentity evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
clubluxurious.com
Port:
587
Username:
adminsmtp@clubluxurious.com
Password:
lovers903212@@@123

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/888-56-0x0000000000220000-0x0000000000228000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/656-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/656-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/656-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/656-66-0x000000000044CC8E-mapping.dmp	family_agenttesla
behavioral1/memory/656-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/656-70-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

CoreCCC Packer 1 IoCs

Detects CoreCCC packer used to load .NET malware.

Processes:

resource	yara_rule
behavioral1/memory/888-54-0x0000000000E40000-0x0000000000ECE000-memory.dmp	coreccc

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/888-57-0x0000000000DE0000-0x0000000000E3A000-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:

company profile and order.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	company profile and order.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	company profile and order.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:

company profile and order.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	company profile and order.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	company profile and order.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	company profile and order.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:

company profile and order.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	company profile and order.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	company profile and order.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

company profile and order.exe

description pid process target process

PID 888 set thread context of 656 888 company profile and order.exe company profile and order.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

1772 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

company profile and order.execompany profile and order.exe

pid process

888 company profile and order.exe
656 company profile and order.exe
656 company profile and order.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

company profile and order.execompany profile and order.exe

description pid process

Token: SeDebugPrivilege 888 company profile and order.exe
Token: SeDebugPrivilege 656 company profile and order.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

company profile and order.exe

pid process

656 company profile and order.exe

description	pid	process	target process
PID 888 set thread context of 656	888	company profile and order.exe	company profile and order.exe

pid	process
1772	schtasks.exe

pid	process
888	company profile and order.exe
656	company profile and order.exe
656	company profile and order.exe

description	pid	process
Token: SeDebugPrivilege	888	company profile and order.exe
Token: SeDebugPrivilege	656	company profile and order.exe

pid	process
656	company profile and order.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

company profile and order.execompany profile and order.exe

description	pid	process	target process
PID 888 wrote to memory of 1772	888	company profile and order.exe	schtasks.exe
PID 888 wrote to memory of 1772	888	company profile and order.exe	schtasks.exe
PID 888 wrote to memory of 1772	888	company profile and order.exe	schtasks.exe
PID 888 wrote to memory of 1772	888	company profile and order.exe	schtasks.exe
PID 888 wrote to memory of 656	888	company profile and order.exe	company profile and order.exe
PID 888 wrote to memory of 656	888	company profile and order.exe	company profile and order.exe
PID 888 wrote to memory of 656	888	company profile and order.exe	company profile and order.exe
PID 888 wrote to memory of 656	888	company profile and order.exe	company profile and order.exe
PID 888 wrote to memory of 656	888	company profile and order.exe	company profile and order.exe
PID 888 wrote to memory of 656	888	company profile and order.exe	company profile and order.exe
PID 888 wrote to memory of 656	888	company profile and order.exe	company profile and order.exe
PID 888 wrote to memory of 656	888	company profile and order.exe	company profile and order.exe
PID 888 wrote to memory of 656	888	company profile and order.exe	company profile and order.exe
PID 656 wrote to memory of 1736	656	company profile and order.exe	netsh.exe
PID 656 wrote to memory of 1736	656	company profile and order.exe	netsh.exe
PID 656 wrote to memory of 1736	656	company profile and order.exe	netsh.exe
PID 656 wrote to memory of 1736	656	company profile and order.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

company profile and order.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	company profile and order.exe

outlook_win_path 1 IoCs

Processes:

company profile and order.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	company profile and order.exe

C:\Users\Admin\AppData\Local\Temp\company profile and order.exe
"C:\Users\Admin\AppData\Local\Temp\company profile and order.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:888

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dWTjESQVUbKx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4819.tmp"
2⤵
- Creates scheduled task(s)
PID:1772

C:\Users\Admin\AppData\Local\Temp\company profile and order.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:656

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1736

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4819.tmp
Filesize
1KB

MD5
a2b28acaa54853cfbff74c65d07939e3

SHA1
4c1cb8e77e53aa260265ff556bf5ad00bfed713d

SHA256
0061622051d9f33d80f9fe6d6c555ea1b1f59c53f15832a7cffc8552320dcc2c

SHA512
f227c80524130594e0b243b17de19904e3e14c52ab379c4770841fdfc1fd815157bf9dff271e33bf774064d29d0106d160728561e5234b57640d27b809e34245

Download Submit
memory/656-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/656-66-0x000000000044CC8E-mapping.dmp

Download
memory/656-70-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/656-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/656-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/656-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/656-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/656-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/888-54-0x0000000000E40000-0x0000000000ECE000-memory.dmp

Filesize
568KB

Download
memory/888-55-0x00000000750C1000-0x00000000750C3000-memory.dmp

Filesize
8KB

Download
memory/888-56-0x0000000000220000-0x0000000000228000-memory.dmp

Filesize
32KB

Download
memory/888-57-0x0000000000DE0000-0x0000000000E3A000-memory.dmp

Filesize
360KB

Download
memory/1736-72-0x0000000000000000-mapping.dmp

Download
memory/1772-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads