agenttesla | b11f12b8f638596e52dc43332ae8ead3d29d47dcb90ba2fb13e7e08811b895c8

General

Target

INVOICE.exe
Size

572KB
MD5

2c42e7848e2520f517c0eb3cff9a17fb
SHA1

fe03a9798d36770f1500b6f35b9a33eb6d391189
SHA256

b11f12b8f638596e52dc43332ae8ead3d29d47dcb90ba2fb13e7e08811b895c8
SHA512

99216c285a66d4c841936b484879f311b01df989744f81026bb2a93b350bcf373f3fff3257ed9f01a680cb6cf469d2d050d6caf4275eed726907c344c94988c5

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.focuzpartsmart.com
Port:
587
Username:
[email protected]
Password:
Fpmabi@2016

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/1760-66-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1760-67-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1760-68-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1760-69-0x000000000043771E-mapping.dmp	family_agenttesla
behavioral1/memory/1760-70-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

INVOICE.exe

description ioc process

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

INVOICE.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

INVOICE.exe

description pid process target process

PID 960 set thread context of 1760 960 INVOICE.exe 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

1932 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

INVOICE.exe

pid process

1760 INVOICE.exe
1760 INVOICE.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

INVOICE.exe

description pid process

Token: SeDebugPrivilege 1760 INVOICE.exe

description	pid	process	target process
PID 960 set thread context of 1760	960	INVOICE.exe	INVOICE.exe

pid	process
1932	schtasks.exe

pid	process
1760	INVOICE.exe
1760	INVOICE.exe

description	pid	process
Token: SeDebugPrivilege	1760	INVOICE.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

INVOICE.exe

description	pid	process	target process
PID 960 wrote to memory of 1932	960	INVOICE.exe	schtasks.exe
PID 960 wrote to memory of 1932	960	INVOICE.exe	schtasks.exe
PID 960 wrote to memory of 1932	960	INVOICE.exe	schtasks.exe
PID 960 wrote to memory of 1932	960	INVOICE.exe	schtasks.exe
PID 960 wrote to memory of 1760	960	INVOICE.exe	INVOICE.exe
PID 960 wrote to memory of 1760	960	INVOICE.exe	INVOICE.exe
PID 960 wrote to memory of 1760	960	INVOICE.exe	INVOICE.exe
PID 960 wrote to memory of 1760	960	INVOICE.exe	INVOICE.exe
PID 960 wrote to memory of 1760	960	INVOICE.exe	INVOICE.exe
PID 960 wrote to memory of 1760	960	INVOICE.exe	INVOICE.exe
PID 960 wrote to memory of 1760	960	INVOICE.exe	INVOICE.exe
PID 960 wrote to memory of 1760	960	INVOICE.exe	INVOICE.exe
PID 960 wrote to memory of 1760	960	INVOICE.exe	INVOICE.exe

outlook_office_path 1 IoCs

Processes:

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	INVOICE.exe

outlook_win_path 1 IoCs

Processes:

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	INVOICE.exe

C:\Users\Admin\AppData\Local\Temp\INVOICE.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:960

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qzDZhUTmRB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp403B.tmp"
2⤵
- Creates scheduled task(s)
PID:1932

C:\Users\Admin\AppData\Local\Temp\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
- outlook_office_path
- outlook_win_path
PID:1760

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\tmp403B.tmp
MD5
0b14c3834f1b25d227d1c068b4d4d0ba

SHA1
ce21ca5bc0be2a8d10f6c6a2e3a6321ce1d5bc41

SHA256
212e82faecccc29cba31ca9cfe2caf259afab4860c3cbde9ff23dfa4b19803fb

SHA512
676af82c6e1d031d63838af8b4feeb660c09de5aa6739e14ef88c486dc0e55196da87c33a979c390f8d2b5b6327d6f79251ddf518d9c93cba9fc2020b05b3639

Download Submit
memory/960-57-0x0000000075D01000-0x0000000075D03000-memory.dmp

Filesize
8KB

Download
memory/960-58-0x0000000004B30000-0x0000000004B31000-memory.dmp

Filesize
4KB

Download
memory/960-59-0x0000000000520000-0x0000000000525000-memory.dmp

Filesize
20KB

Download
memory/960-60-0x0000000005350000-0x00000000053D0000-memory.dmp

Filesize
512KB

Download
memory/960-61-0x0000000004590000-0x00000000045C8000-memory.dmp

Filesize
224KB

Download
memory/960-55-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/1760-64-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1760-65-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1760-66-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1760-67-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1760-68-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1760-69-0x000000000043771E-mapping.dmp

Download
memory/1760-70-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1760-72-0x00000000048A0000-0x00000000048A1000-memory.dmp

Filesize
4KB

Download
memory/1760-73-0x00000000048A1000-0x00000000048A2000-memory.dmp

Filesize
4KB

Download
memory/1932-62-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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