agenttesla | 0f626eca4a80a70619bded3da7db0cbac8de8effb65482cdf05962ff789155be

General

Target

0f626eca4a80a70619bded3da7db0cbac8de8effb65482cdf05962ff789155be.xlsx
Size

3.9MB
MD5

5ffc2a72ff05e1f486e4aa0142b89a23
SHA1

1d7428dd31e095b0aa43a61c962e7d42587c3f0c
SHA256

0f626eca4a80a70619bded3da7db0cbac8de8effb65482cdf05962ff789155be
SHA512

3b9753133f33901cc5fe4cc9e13ddb860b6a4cbae572ba4aad0149589c4b162caa9352dc57831d9c532367e5f978e22de34612566990fd0e83aaba4797cec7d4
SSDEEP

98304:fxCNiZcsxN2HwHTiOsR1PWdVUnugvD50Dm:ZC8ZcsiOPdEugvDV

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.solucionesmexico.mx
Port:
587
Username:
[email protected]
Password:
Qdk,[nKrmI0j
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	2016	EQNEDT32.EXE

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
2648	givesa.exe

Loads dropped DLL 1 IoCs

pid	Process
2016	EQNEDT32.EXE

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x0007000000018dea-6.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2648 set thread context of 2672	2648	givesa.exe	31

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EQNEDT32.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	givesa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Launches Equation Editor 1 TTPs 1 IoCs

Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

exploit

Exploitation for Client Execution

T1203

pid	Process
2016	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2468	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2672	RegSvcs.exe
2672	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2648	givesa.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2672	RegSvcs.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2468	EXCEL.EXE
2468	EXCEL.EXE
2468	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 2648	2016	EQNEDT32.EXE	30
PID 2016 wrote to memory of 2648	2016	EQNEDT32.EXE	30
PID 2016 wrote to memory of 2648	2016	EQNEDT32.EXE	30
PID 2016 wrote to memory of 2648	2016	EQNEDT32.EXE	30
PID 2648 wrote to memory of 2672	2648	givesa.exe	31
PID 2648 wrote to memory of 2672	2648	givesa.exe	31
PID 2648 wrote to memory of 2672	2648	givesa.exe	31
PID 2648 wrote to memory of 2672	2648	givesa.exe	31
PID 2648 wrote to memory of 2672	2648	givesa.exe	31
PID 2648 wrote to memory of 2672	2648	givesa.exe	31
PID 2648 wrote to memory of 2672	2648	givesa.exe	31
PID 2648 wrote to memory of 2672	2648	givesa.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\0f626eca4a80a70619bded3da7db0cbac8de8effb65482cdf05962ff789155be.xlsx
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2468

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Users\Admin\AppData\Local\Temp\givesa.exe
  C:\Users\Admin\AppData\Local\Temp\givesa.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2648
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    C:\Users\Admin\AppData\Local\Temp\givesa.exe
    3⤵
    - Accesses Microsoft Outlook profiles
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:2672

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\givesa.exe

Filesize
1.1MB

MD5
5e82584ed7739e18b4137b5e05d5167f

SHA1
308388caa070f0a7e2791c5d348d52fe1f9b4070

SHA256
91100ceceed13fa2497c0d3e8e186506f2a6566d6b8b651eec8437c67622893d

SHA512
bd7b61d5164c063814e7d039f415f81648fb6e6fcc6fb8f0f8bcfc6aecc9caaa1899f2e09613ca27f47aec6c2fc122a28cf9ad72a36a547168cdc0b164888a0b

Download Submit
memory/2468-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2468-1-0x000000007258D000-0x0000000072598000-memory.dmp

Filesize
44KB

Download
memory/2468-16-0x000000007258D000-0x0000000072598000-memory.dmp

Filesize
44KB

Download
memory/2468-19-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2468-20-0x000000007258D000-0x0000000072598000-memory.dmp

Filesize
44KB

Download
memory/2672-15-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2672-14-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2672-13-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download

Analysis

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