agenttesla | 6e57cd573de3d14fe09f11364476b54f2b935d545be1258ee843d31573846622

General

Target

rCita-00373________________pdf.exe
Size

991KB
MD5

ac7b9f4d37fa2d99c4378ca00b247907
SHA1

0f998dee4b813821192a675d8a96d4cb0c0c91ea
SHA256

6e57cd573de3d14fe09f11364476b54f2b935d545be1258ee843d31573846622
SHA512

1826369aaa67a16c6dd68591315f519c98279c4fa5969e4b42db8f80bb1427a1b8765eb4a1ea15a1d8f8b44975bf8dca2f3e47058714757f83d6733aa4a7d259
SSDEEP

24576:FB94uQFPPHcDuDSqbjHQ/bHImc2gdNeF0SvRd6gKJvbdlA70:L91QFPPa4Sd/DS80cs7vbdlA

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.nereus.cl
Port:
587
Username:
[email protected]
Password:
0uF)jGjrEGiu

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.nereus.cl
Port:
587
Username:
[email protected]
Password:
0uF)jGjrEGiu
Email To:
[email protected]

Signatures

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.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-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\firefox = "C:\\Users\\Admin\\AppData\\Roaming\\firefox\\firefox.exe"	MSBuild.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
23	api.ipify.org
24	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1948 set thread context of 1396	1948	rCita-00373________________pdf.exe	95

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1396	MSBuild.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1396	MSBuild.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1948 wrote to memory of 1396	1948	rCita-00373________________pdf.exe	95
PID 1948 wrote to memory of 1396	1948	rCita-00373________________pdf.exe	95
PID 1948 wrote to memory of 1396	1948	rCita-00373________________pdf.exe	95
PID 1948 wrote to memory of 1396	1948	rCita-00373________________pdf.exe	95
PID 1948 wrote to memory of 1396	1948	rCita-00373________________pdf.exe	95
PID 1948 wrote to memory of 1396	1948	rCita-00373________________pdf.exe	95
PID 1948 wrote to memory of 1396	1948	rCita-00373________________pdf.exe	95
PID 1948 wrote to memory of 1396	1948	rCita-00373________________pdf.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\rCita-00373________________pdf.exe
"C:\Users\Admin\AppData\Local\Temp\rCita-00373________________pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1396

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1396-140-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1396-154-0x0000000005920000-0x0000000005930000-memory.dmp

Filesize
64KB

Download
memory/1396-147-0x00000000074E0000-0x00000000076A2000-memory.dmp

Filesize
1.8MB

Download
memory/1396-146-0x00000000072A0000-0x00000000072F0000-memory.dmp

Filesize
320KB

Download
memory/1396-143-0x0000000005920000-0x0000000005930000-memory.dmp

Filesize
64KB

Download
memory/1396-142-0x0000000005820000-0x0000000005886000-memory.dmp

Filesize
408KB

Download
memory/1948-136-0x0000000005B10000-0x0000000005B20000-memory.dmp

Filesize
64KB

Download
memory/1948-139-0x0000000008F60000-0x0000000008FFC000-memory.dmp

Filesize
624KB

Download
memory/1948-138-0x0000000005B10000-0x0000000005B20000-memory.dmp

Filesize
64KB

Download
memory/1948-137-0x0000000005920000-0x000000000592A000-memory.dmp

Filesize
40KB

Download
memory/1948-133-0x0000000000F60000-0x000000000105E000-memory.dmp

Filesize
1016KB

Download
memory/1948-135-0x0000000005950000-0x00000000059E2000-memory.dmp

Filesize
584KB

Download
memory/1948-134-0x0000000005F00000-0x00000000064A4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads