agenttesla | 100929f61c1bfa1c7ebf6a2cba25afbeb6af92a2a5426025a060e9edbfa8f063

General

Target
INVOICES.exe
Size 1.0MB
Sample220928-ewybfsfac3
SHA256 100929f61c1bfa1c7ebf6a2cba25afbeb6af92a2a5426025a060e9edbfa8f063
MD5 94d745621dee187453b16092c589e9a2
SHA1 c8b91194399ce462869bc4e4cc07166f293c20bd
SHA512 1ef935ae44141c3289709e6556380057ea61a449d5a3da31ec623d14d52254bcf1d52de39f6d1c6b4c143f99d87a932f2df05b21ac67e250b5e4af8232585c9e
SSDEEP 12288:13mY2iNw0+9MKWSKgbHiJtCHyTYyqYcTdMFmEmmoYADqjJ5n8MMR18l31mAGgbw2:13x1IeX8CEHEhTcTWxxjr
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol
smtp
Host
mail.clipjoint.co.nz
Port
587
Username
[email protected]
Password
melandloz64

Signatures

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

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	INVOICES.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	INVOICES.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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICES.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICES.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICES.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\LIhMQ = "C:\\Users\\Admin\\AppData\\Roaming\\LIhMQ\\LIhMQ.exe"	INVOICES.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1260 set thread context of 3860	1260	INVOICES.exe	94

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

pid	Process
2388	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1260	INVOICES.exe
3860	INVOICES.exe
3860	INVOICES.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1260	INVOICES.exe
Token: SeDebugPrivilege	3860	INVOICES.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3860	INVOICES.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1260 wrote to memory of 2388	1260	INVOICES.exe	92
PID 1260 wrote to memory of 2388	1260	INVOICES.exe	92
PID 1260 wrote to memory of 2388	1260	INVOICES.exe	92
PID 1260 wrote to memory of 3860	1260	INVOICES.exe	94
PID 1260 wrote to memory of 3860	1260	INVOICES.exe	94
PID 1260 wrote to memory of 3860	1260	INVOICES.exe	94
PID 1260 wrote to memory of 3860	1260	INVOICES.exe	94
PID 1260 wrote to memory of 3860	1260	INVOICES.exe	94
PID 1260 wrote to memory of 3860	1260	INVOICES.exe	94
PID 1260 wrote to memory of 3860	1260	INVOICES.exe	94
PID 1260 wrote to memory of 3860	1260	INVOICES.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICES.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INVOICES.exe

C:\Users\Admin\AppData\Local\Temp\INVOICES.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICES.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1260
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cpIQgrsVPKAa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFB8B.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2388
- C:\Users\Admin\AppData\Local\Temp\INVOICES.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:3860

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

tmpFB8B.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpFB8B.tmp
Size 1KB
SHA256 69699de64d4f82323b7887fe8dfce48c907e7279f20c2b891096ce174851a566
MD5 4bf5dd4b511df67fa487090c072c7b24
SHA1 f78b15104767d8f25e52526ebe7d97d90e7e4f53
SHA512 355ebb5237d69a40890c0245b2f0cf4fd3048dbca8ffc62ec5bf2dbce83a526817bed158728aff8741215b8cf150e905103a6ec36acd1f7bb7be58ae7d25fd95
MD5 SHA1 SHA512

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memory/1260-132-0x00000000002D0000-0x00000000003E0000-memory.dmp

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memory/1260-133-0x0000000005460000-0x0000000005A04000-memory.dmp

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memory/1260-134-0x0000000004D70000-0x0000000004E02000-memory.dmp

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memory/1260-135-0x0000000004F50000-0x0000000004FEC000-memory.dmp

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memory/1260-136-0x0000000004E10000-0x0000000004E1A000-memory.dmp

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memory/3860-140-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/3860-141-0x0000000005710000-0x0000000005776000-memory.dmp

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memory/3860-142-0x00000000064A0000-0x00000000064F0000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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