agenttesla | 67174293be1ad3d354028d57b59c2ff54c2454f92934f42ead1cb56ec69211a3

General

Target

Inquiry Order.exe
Size

480KB
MD5

11cd289b080a87cf994d1da97cc5b575
SHA1

804010c9597571b9aad7b37f0e31474532b20d74
SHA256

793666eca93a68eaa6cbb34eac888c354c61cc5d92e5f8d99466020a430308b2
SHA512

8d093f31089ef2d4f984ff58b70e7ab6c6bdd8ea36c9648fd86a97ccecdd3cbf6ee2b044179b000d25506d9714d0554e76d079e7be7f4a872b937e8f09e061b1

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

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/1844-56-0x0000000000790000-0x0000000000798000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1492-63-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/1492-64-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/1492-65-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/1492-66-0x000000000045499E-mapping.dmp	family_agenttesla
behavioral1/memory/1492-68-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/1492-70-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1844-57-0x0000000004F20000-0x0000000004F80000-memory.dmp	rezer0

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:

Inquiry Order.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	Inquiry Order.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Inquiry Order.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Inquiry Order.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Inquiry Order.exe

description pid process target process

PID 1844 set thread context of 1492 1844 Inquiry Order.exe Inquiry 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

932 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Inquiry Order.exeInquiry Order.exe

pid process

1844 Inquiry Order.exe
1492 Inquiry Order.exe
1492 Inquiry Order.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Inquiry Order.exeInquiry Order.exe

description pid process

Token: SeDebugPrivilege 1844 Inquiry Order.exe
Token: SeDebugPrivilege 1492 Inquiry Order.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Inquiry Order.exe

pid process

1492 Inquiry Order.exe

description	pid	process	target process
PID 1844 set thread context of 1492	1844	Inquiry Order.exe	Inquiry Order.exe

pid	process
932	schtasks.exe

pid	process
1844	Inquiry Order.exe
1492	Inquiry Order.exe
1492	Inquiry Order.exe

description	pid	process
Token: SeDebugPrivilege	1844	Inquiry Order.exe
Token: SeDebugPrivilege	1492	Inquiry Order.exe

pid	process
1492	Inquiry Order.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Inquiry Order.exe

description	pid	process	target process
PID 1844 wrote to memory of 932	1844	Inquiry Order.exe	schtasks.exe
PID 1844 wrote to memory of 932	1844	Inquiry Order.exe	schtasks.exe
PID 1844 wrote to memory of 932	1844	Inquiry Order.exe	schtasks.exe
PID 1844 wrote to memory of 932	1844	Inquiry Order.exe	schtasks.exe
PID 1844 wrote to memory of 1492	1844	Inquiry Order.exe	Inquiry Order.exe
PID 1844 wrote to memory of 1492	1844	Inquiry Order.exe	Inquiry Order.exe
PID 1844 wrote to memory of 1492	1844	Inquiry Order.exe	Inquiry Order.exe
PID 1844 wrote to memory of 1492	1844	Inquiry Order.exe	Inquiry Order.exe
PID 1844 wrote to memory of 1492	1844	Inquiry Order.exe	Inquiry Order.exe
PID 1844 wrote to memory of 1492	1844	Inquiry Order.exe	Inquiry Order.exe
PID 1844 wrote to memory of 1492	1844	Inquiry Order.exe	Inquiry Order.exe
PID 1844 wrote to memory of 1492	1844	Inquiry Order.exe	Inquiry Order.exe
PID 1844 wrote to memory of 1492	1844	Inquiry Order.exe	Inquiry Order.exe

outlook_office_path 1 IoCs

Processes:

Inquiry Order.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	Inquiry Order.exe

outlook_win_path 1 IoCs

Processes:

Inquiry Order.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	Inquiry Order.exe

C:\Users\Admin\AppData\Local\Temp\Inquiry Order.exe
"C:\Users\Admin\AppData\Local\Temp\Inquiry Order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1844

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pxFnRY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7215.tmp"
2⤵
- Creates scheduled task(s)
PID:932

C:\Users\Admin\AppData\Local\Temp\Inquiry Order.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:1492

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

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp7215.tmp
Filesize
1KB

MD5
1601d68a9d01f9d0b2b41eec775d7481

SHA1
84c8bb4eddeeb006c9b0588835a48b6156f325ed

SHA256
e1b2783bad5314e65b0ecf83da83217bec7d37e4d586ca86be3f52ce1f6a2b02

SHA512
83189fa47e0ea3465f1b2aaa8fa314bf10de5bc1f881b270fae18418c4bd81f0187d1961e0ad4626ab2bcef49c98d146bb31f317e3845caaadf49c25cde70629

Download Submit
memory/932-58-0x0000000000000000-mapping.dmp

Download
memory/1492-64-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1492-60-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1492-61-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1492-63-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1492-65-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1492-66-0x000000000045499E-mapping.dmp

Download
memory/1492-68-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1492-70-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1492-72-0x0000000000640000-0x000000000064A000-memory.dmp

Filesize
40KB

Download
memory/1844-57-0x0000000004F20000-0x0000000004F80000-memory.dmp

Filesize
384KB

Download
memory/1844-56-0x0000000000790000-0x0000000000798000-memory.dmp

Filesize
32KB

Download
memory/1844-55-0x0000000075261000-0x0000000075263000-memory.dmp

Filesize
8KB

Download
memory/1844-54-0x0000000000EA0000-0x0000000000F1E000-memory.dmp

Filesize
504KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads