agenttesla | a2eaaaa66cd162d90cc6c68c0dcc379d89ba746ddbad8508c911c7a88ba86c9d

General

Target

Halkbank,pdf.exe
Size

999KB
MD5

61d198a66cfb49204b9b7ae0eb1ee918
SHA1

d4b93ad9205f9164ba5804691060006ac60d7c2c
SHA256

a2eaaaa66cd162d90cc6c68c0dcc379d89ba746ddbad8508c911c7a88ba86c9d
SHA512

7f2c8a2946220f0ae01a60e3f10872f770625aa7390066a1cd2d0ee577781ac571a4fec34087d3a290cc854e0eda9b06c5631549a088a6c0ba69169049549847
SSDEEP

24576:AksTPEx7E9CcefbXFklAo30MWr2zQ3yL+L74mBfNUstzo:AksrMQ9CccXFHNMO3

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.irw.com.br
Port:
587
Username:
[email protected]
Password:
Everest10@
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
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-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,pdf.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1572 set thread context of 472	1572	Halkbank,pdf.exe	28

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1988	472	WerFault.exe	28

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
472	Halkbank,pdf.exe
472	Halkbank,pdf.exe
472	Halkbank,pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	472	Halkbank,pdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1572 wrote to memory of 472	1572	Halkbank,pdf.exe	28
PID 1572 wrote to memory of 472	1572	Halkbank,pdf.exe	28
PID 1572 wrote to memory of 472	1572	Halkbank,pdf.exe	28
PID 1572 wrote to memory of 472	1572	Halkbank,pdf.exe	28
PID 1572 wrote to memory of 472	1572	Halkbank,pdf.exe	28
PID 1572 wrote to memory of 472	1572	Halkbank,pdf.exe	28
PID 1572 wrote to memory of 472	1572	Halkbank,pdf.exe	28
PID 1572 wrote to memory of 472	1572	Halkbank,pdf.exe	28
PID 1572 wrote to memory of 472	1572	Halkbank,pdf.exe	28
PID 472 wrote to memory of 1988	472	Halkbank,pdf.exe	30
PID 472 wrote to memory of 1988	472	Halkbank,pdf.exe	30
PID 472 wrote to memory of 1988	472	Halkbank,pdf.exe	30
PID 472 wrote to memory of 1988	472	Halkbank,pdf.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,pdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,pdf.exe

C:\Users\Admin\AppData\Local\Temp\Halkbank,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank,pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1572
- C:\Users\Admin\AppData\Local\Temp\Halkbank,pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Halkbank,pdf.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:472
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 472 -s 1572
    3⤵
    - Program crash
    PID:1988

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/472-61-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/472-70-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/472-68-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/472-64-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/472-63-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/472-60-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/472-65-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1572-55-0x0000000075891000-0x0000000075893000-memory.dmp

Filesize
8KB

Download
memory/1572-54-0x0000000000D90000-0x0000000000E90000-memory.dmp

Filesize
1024KB

Download
memory/1572-59-0x0000000005CF0000-0x0000000005D68000-memory.dmp

Filesize
480KB

Download
memory/1572-58-0x00000000051B0000-0x0000000005260000-memory.dmp

Filesize
704KB

Download
memory/1572-57-0x0000000000650000-0x000000000065C000-memory.dmp

Filesize
48KB

Download
memory/1572-56-0x00000000006A0000-0x00000000006B8000-memory.dmp

Filesize
96KB

Download

Analysis

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