agenttesla | fcb012805679bb99ffeb9f535f06e1c5940b53d773f527e3a9aef5371540a199

General

Target

ASCD0001 INQ9829......pdf.exe
Size

840KB
MD5

57b1ad0359c449cd533a34db4fc81a9d
SHA1

a28948d8b7456cc3e3ac2aaf244bbc35cee76b85
SHA256

fcb012805679bb99ffeb9f535f06e1c5940b53d773f527e3a9aef5371540a199
SHA512

40c1a56b489b94313093abda622cdb1e1d295ba867666a667a1160f4a2a47616000189cc31caa833e9d01a32aef0f57b3d7cb6bfc05e27b74ac7f6c0455a930b
SSDEEP

24576:Qw4bjw4bDmrejmh1ezUjX/sCDQzPcbgV7:Qw4bjw4bDljtUjPsCDQgbw

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.hsbv1.nl
Port:
587
Username:
[email protected]
Password:
xdDPyH(8
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

ASCD0001 INQ9829......pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ASCD0001 INQ9829......pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ASCD0001 INQ9829......pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ASCD0001 INQ9829......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.

Processes:

flow ioc

20 api.ipify.org
21 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

ASCD0001 INQ9829......pdf.exe

description pid process target process

PID 996 set thread context of 4496 996 ASCD0001 INQ9829......pdf.exe ASCD0001 INQ9829......pdf.exe

flow	ioc
20	api.ipify.org
21	api.ipify.org

description	pid	process	target process
PID 996 set thread context of 4496	996	ASCD0001 INQ9829......pdf.exe	ASCD0001 INQ9829......pdf.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

Processes:

ASCD0001 INQ9829......pdf.exeASCD0001 INQ9829......pdf.exe

pid	process
996	ASCD0001 INQ9829......pdf.exe
996	ASCD0001 INQ9829......pdf.exe
996	ASCD0001 INQ9829......pdf.exe
996	ASCD0001 INQ9829......pdf.exe
996	ASCD0001 INQ9829......pdf.exe
996	ASCD0001 INQ9829......pdf.exe
996	ASCD0001 INQ9829......pdf.exe
996	ASCD0001 INQ9829......pdf.exe
996	ASCD0001 INQ9829......pdf.exe
4496	ASCD0001 INQ9829......pdf.exe
4496	ASCD0001 INQ9829......pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ASCD0001 INQ9829......pdf.exeASCD0001 INQ9829......pdf.exe

description pid process

Token: SeDebugPrivilege 996 ASCD0001 INQ9829......pdf.exe
Token: SeDebugPrivilege 4496 ASCD0001 INQ9829......pdf.exe

description	pid	process
Token: SeDebugPrivilege	996	ASCD0001 INQ9829......pdf.exe
Token: SeDebugPrivilege	4496	ASCD0001 INQ9829......pdf.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

ASCD0001 INQ9829......pdf.exe

description	pid	process	target process
PID 996 wrote to memory of 4496	996	ASCD0001 INQ9829......pdf.exe	ASCD0001 INQ9829......pdf.exe
PID 996 wrote to memory of 4496	996	ASCD0001 INQ9829......pdf.exe	ASCD0001 INQ9829......pdf.exe
PID 996 wrote to memory of 4496	996	ASCD0001 INQ9829......pdf.exe	ASCD0001 INQ9829......pdf.exe
PID 996 wrote to memory of 4496	996	ASCD0001 INQ9829......pdf.exe	ASCD0001 INQ9829......pdf.exe
PID 996 wrote to memory of 4496	996	ASCD0001 INQ9829......pdf.exe	ASCD0001 INQ9829......pdf.exe
PID 996 wrote to memory of 4496	996	ASCD0001 INQ9829......pdf.exe	ASCD0001 INQ9829......pdf.exe
PID 996 wrote to memory of 4496	996	ASCD0001 INQ9829......pdf.exe	ASCD0001 INQ9829......pdf.exe
PID 996 wrote to memory of 4496	996	ASCD0001 INQ9829......pdf.exe	ASCD0001 INQ9829......pdf.exe

outlook_office_path 1 IoCs

Processes:

ASCD0001 INQ9829......pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ASCD0001 INQ9829......pdf.exe

outlook_win_path 1 IoCs

Processes:

ASCD0001 INQ9829......pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ASCD0001 INQ9829......pdf.exe

C:\Users\Admin\AppData\Local\Temp\ASCD0001 INQ9829......pdf.exe
"C:\Users\Admin\AppData\Local\Temp\ASCD0001 INQ9829......pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:996
- C:\Users\Admin\AppData\Local\Temp\ASCD0001 INQ9829......pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\ASCD0001 INQ9829......pdf.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ASCD0001 INQ9829......pdf.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/996-10-0x000000007536E000-0x000000007536F000-memory.dmp

Filesize
4KB

Download
memory/996-15-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/996-9-0x0000000005CE0000-0x0000000005D64000-memory.dmp

Filesize
528KB

Download
memory/996-4-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/996-5-0x0000000004B00000-0x0000000004B0A000-memory.dmp

Filesize
40KB

Download
memory/996-6-0x0000000004E10000-0x0000000004EAC000-memory.dmp

Filesize
624KB

Download
memory/996-7-0x0000000004DE0000-0x0000000004DFA000-memory.dmp

Filesize
104KB

Download
memory/996-8-0x0000000004C60000-0x0000000004C70000-memory.dmp

Filesize
64KB

Download
memory/996-3-0x0000000004B40000-0x0000000004BD2000-memory.dmp

Filesize
584KB

Download
memory/996-0-0x000000007536E000-0x000000007536F000-memory.dmp

Filesize
4KB

Download
memory/996-2-0x00000000050F0000-0x0000000005694000-memory.dmp

Filesize
5.6MB

Download
memory/996-11-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/996-1-0x0000000000020000-0x00000000000F6000-memory.dmp

Filesize
856KB

Download
memory/4496-12-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4496-16-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/4496-18-0x0000000005370000-0x00000000053D6000-memory.dmp

Filesize
408KB

Download
memory/4496-17-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/4496-19-0x0000000006A10000-0x0000000006A60000-memory.dmp

Filesize
320KB

Download
memory/4496-20-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads