agenttesla | 9f29d32cd39ebcf55f179a21ce07d4cb793d211020b323eb02a122a628ee483e

General

Target

PROFORMA INVOICE.exe
Size

463KB
MD5

563ace61f357fe73207c546cbec9c0cd
SHA1

6cc9bbe6704f4a54105502672d246e97d3c9688e
SHA256

9beb57914c705bfd2a1bfaca1bd2f4beca2a2cd8dff49229558bca04774a360a
SHA512

a48b165149fdd63b2ea95bafec0b4a22ca615530dabcb206a584d38d8cc3d7f4d1da3b64dc6096eaa4507d9bc98f115930384258873513b64b856b94d6934cda

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.dieseltronic.com.pe
Port:
587
Username:
[email protected]
Password:
Asdiesel2019@?%%%,

Signatures

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

AgentTesla Payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/932-66-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/932-67-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/932-68-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/932-69-0x000000000043763E-mapping.dmp	family_agenttesla
behavioral1/memory/932-70-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

PROFORMA INVOICE.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts PROFORMA INVOICE.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

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

PROFORMA INVOICE.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PROFORMA INVOICE.exe
Key opened	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PROFORMA INVOICE.exe
Key opened	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PROFORMA INVOICE.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

PROFORMA INVOICE.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe"	PROFORMA INVOICE.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PROFORMA INVOICE.exe

description pid process target process

PID 1528 set thread context of 932 1528 PROFORMA INVOICE.exe PROFORMA INVOICE.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

1764 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

PROFORMA INVOICE.exePROFORMA INVOICE.exe

pid process

1528 PROFORMA INVOICE.exe
932 PROFORMA INVOICE.exe
932 PROFORMA INVOICE.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PROFORMA INVOICE.exePROFORMA INVOICE.exe

description pid process

Token: SeDebugPrivilege 1528 PROFORMA INVOICE.exe
Token: SeDebugPrivilege 932 PROFORMA INVOICE.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PROFORMA INVOICE.exe

pid process

932 PROFORMA INVOICE.exe

description	pid	process	target process
PID 1528 set thread context of 932	1528	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe

pid	process
1764	schtasks.exe

pid	process
1528	PROFORMA INVOICE.exe
932	PROFORMA INVOICE.exe
932	PROFORMA INVOICE.exe

description	pid	process
Token: SeDebugPrivilege	1528	PROFORMA INVOICE.exe
Token: SeDebugPrivilege	932	PROFORMA INVOICE.exe

pid	process
932	PROFORMA INVOICE.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

PROFORMA INVOICE.exe

description	pid	process	target process
PID 1528 wrote to memory of 1764	1528	PROFORMA INVOICE.exe	schtasks.exe
PID 1528 wrote to memory of 1764	1528	PROFORMA INVOICE.exe	schtasks.exe
PID 1528 wrote to memory of 1764	1528	PROFORMA INVOICE.exe	schtasks.exe
PID 1528 wrote to memory of 1764	1528	PROFORMA INVOICE.exe	schtasks.exe
PID 1528 wrote to memory of 932	1528	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe
PID 1528 wrote to memory of 932	1528	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe
PID 1528 wrote to memory of 932	1528	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe
PID 1528 wrote to memory of 932	1528	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe
PID 1528 wrote to memory of 932	1528	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe
PID 1528 wrote to memory of 932	1528	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe
PID 1528 wrote to memory of 932	1528	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe
PID 1528 wrote to memory of 932	1528	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe
PID 1528 wrote to memory of 932	1528	PROFORMA INVOICE.exe	PROFORMA INVOICE.exe

outlook_office_path 1 IoCs

Processes:

PROFORMA INVOICE.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PROFORMA INVOICE.exe

outlook_win_path 1 IoCs

Processes:

PROFORMA INVOICE.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PROFORMA INVOICE.exe

C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.exe
"C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1528

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jbRaoNBxNzlTq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2C00.tmp"
2⤵
- Creates scheduled task(s)
PID:1764

C:\Users\Admin\AppData\Local\Temp\PROFORMA INVOICE.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:932

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp2C00.tmp

MD5
35ada2a317171017c668145b08386b05

SHA1
7ccbf4bcb2fd99b677adcbb06cca89acb2ae3c94

SHA256
ddd9d3027d7f1e3b76f0f22901d9dcefdfbdf40233c39df0202ecf9f73063ebb

SHA512
3dda4d2b9aa01f4787a747be4da3c0877b310cdfdf61bde6a2ce9e3bad5fc3464c491c1ca6b0458aac345b21871c2ba2ecb87cf0839642ddc5672418ba1830e4

Download Submit
memory/932-68-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/932-67-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/932-73-0x0000000000EE1000-0x0000000000EE2000-memory.dmp

Filesize
4KB

Download
memory/932-72-0x0000000000EE0000-0x0000000000EE1000-memory.dmp

Filesize
4KB

Download
memory/932-65-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/932-70-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/932-69-0x000000000043763E-mapping.dmp

Download
memory/932-64-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/932-66-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1528-61-0x0000000000B70000-0x0000000000BA8000-memory.dmp

Filesize
224KB

Download
memory/1528-57-0x0000000075AB1000-0x0000000075AB3000-memory.dmp

Filesize
8KB

Download
memory/1528-55-0x0000000000F40000-0x0000000000F41000-memory.dmp

Filesize
4KB

Download
memory/1528-58-0x0000000004A80000-0x0000000004A81000-memory.dmp

Filesize
4KB

Download
memory/1528-60-0x0000000005400000-0x0000000005475000-memory.dmp

Filesize
468KB

Download
memory/1528-59-0x0000000000320000-0x0000000000325000-memory.dmp

Filesize
20KB

Download
memory/1764-62-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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