agenttesla | 094184e6a68ee72ef6420e831ac50294c3f03d7a13b6b5d2c3a17aaba9a29bee

General

Target

56cfe3f849df6183cee94cb46c74c771.exe
Size

1.3MB
MD5

56cfe3f849df6183cee94cb46c74c771
SHA1

25fb5696031562743268f84e316e133a55946471
SHA256

094184e6a68ee72ef6420e831ac50294c3f03d7a13b6b5d2c3a17aaba9a29bee
SHA512

50210bd51eab06d5143c359c04a4761cc09a7abf0f11a8227f7cafad5c2b0fee6528dcd1b7ca5d034b677a570edd94e171a4b7e5f3914ad3c176b787b5e1858a
SSDEEP

24576:i95ooKw0UYoVJ5jbUVlAUGwNbwPWnuCXnw8I6TvvtBJ+d9pu80roJvKeSWta3t4v:4WoKw0UYiJ5jbo5GqbwPWnuCXnbRTHtW

Score

10^/10

agenttesla collection keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.alfafoodservices.com
Port:
587
Username:
[email protected]
Password:
gwagon2014

Signatures

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

AgentTesla payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023218-3.dat	family_agenttesla
behavioral2/memory/4528-7-0x0000000000010000-0x0000000000060000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

pid	Process
4528	test.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
T1552.001
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
T1552.001
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
T1552.001

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1860-0-0x0000000000400000-0x00000000006A3000-memory.dmp	upx
behavioral2/memory/1860-5-0x0000000000400000-0x00000000006A3000-memory.dmp	upx

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe
Key opened	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe
Key opened	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4528	test.exe
4528	test.exe
4528	test.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4528	test.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4528	test.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1860 wrote to memory of 2496	1860	56cfe3f849df6183cee94cb46c74c771.exe	93
PID 1860 wrote to memory of 2496	1860	56cfe3f849df6183cee94cb46c74c771.exe	93
PID 1860 wrote to memory of 2496	1860	56cfe3f849df6183cee94cb46c74c771.exe	93
PID 2496 wrote to memory of 4528	2496	cmd.exe	94
PID 2496 wrote to memory of 4528	2496	cmd.exe	94
PID 2496 wrote to memory of 4528	2496	cmd.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

C:\Users\Admin\AppData\Local\Temp\56cfe3f849df6183cee94cb46c74c771.exe
"C:\Users\Admin\AppData\Local\Temp\56cfe3f849df6183cee94cb46c74c771.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1860
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c test.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2496
- - C:\Users\Admin\AppData\Local\Temp\test.exe
    test.exe
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - outlook_office_path
    - outlook_win_path
    PID:4528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

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\test.exe

Filesize
291KB

MD5
1dd3a68cfbc3092098ffb0f5962dee95

SHA1
5932b72546f15e4a7b57eeadb426449ff78fb08b

SHA256
b2e07d1d9aafaf365fc35c25acd07584fd07e12287435e383ceee767a409bd50

SHA512
4046655802bbfff2e2ed43655a27054296bb999681066772774b93bfd25180812f21f839481fa70d200928ef13fd9a9ee8e07632792bd6f1f071270f5eb755d1

Download Submit
memory/1860-0-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/1860-5-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/4528-11-0x0000000004BF0000-0x0000000004C8C000-memory.dmp

Filesize
624KB

Download
memory/4528-13-0x0000000005850000-0x00000000058B6000-memory.dmp

Filesize
408KB

Download
memory/4528-8-0x00000000052A0000-0x0000000005844000-memory.dmp

Filesize
5.6MB

Download
memory/4528-9-0x0000000004BE0000-0x0000000004BF0000-memory.dmp

Filesize
64KB

Download
memory/4528-10-0x0000000004AF0000-0x0000000004B82000-memory.dmp

Filesize
584KB

Download
memory/4528-6-0x00000000746F0000-0x0000000074EA0000-memory.dmp

Filesize
7.7MB

Download
memory/4528-12-0x0000000004AD0000-0x0000000004AE8000-memory.dmp

Filesize
96KB

Download
memory/4528-7-0x0000000000010000-0x0000000000060000-memory.dmp

Filesize
320KB

Download
memory/4528-14-0x0000000006010000-0x0000000006060000-memory.dmp

Filesize
320KB

Download
memory/4528-21-0x0000000004BE0000-0x0000000004BF0000-memory.dmp

Filesize
64KB

Download
memory/4528-20-0x00000000064B0000-0x00000000064BA000-memory.dmp

Filesize
40KB

Download
memory/4528-25-0x00000000746F0000-0x0000000074EA0000-memory.dmp

Filesize
7.7MB

Download
memory/4528-26-0x0000000004BE0000-0x0000000004BF0000-memory.dmp

Filesize
64KB

Download
memory/4528-28-0x0000000004BE0000-0x0000000004BF0000-memory.dmp

Filesize
64KB

Download

Analysis

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