agenttesla | 83d7f0bdaaed88575f5da5ba200812740e2485a89296ff0ca62d361af64e0828

General

Target

Scan docs. pdf...................exe
Size

395KB
MD5

1be69ae48470bc61f9d9a3dadac1332b
SHA1

70fd3849d42ea40e4df52a4f388abfd099d8d892
SHA256

43503c2141f4ee3c30d73dc4cec26f079074c25cd4487ce9de32b9f36c73a871
SHA512

5d9bb581ec611702edf57317877cc15d60a9b096309b7a10b8bc1ff8c057d0dc7519b63b00e24253062ec6d16047c8220485f886a653dea97933dda47cd38c2e

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.nicedoc.biz
Port:
587
Username:
[email protected]
Password:
simple2626

Signatures

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

AgentTesla Payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1984-64-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1984-65-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1984-66-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1984-67-0x00000000004375EE-mapping.dmp	family_agenttesla
behavioral1/memory/1984-68-0x0000000000400000-0x000000000043C000-memory.dmp	family_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

Processes:

Scan docs. pdf...................exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan docs. pdf...................exe
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan docs. pdf...................exe
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan docs. pdf...................exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Scan docs. pdf...................exe

description pid process target process

PID 1508 set thread context of 1984 1508 Scan docs. pdf...................exe Scan docs. pdf...................exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

424 schtasks.exe

description	pid	process	target process
PID 1508 set thread context of 1984	1508	Scan docs. pdf...................exe	Scan docs. pdf...................exe

pid	process
424	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

Scan docs. pdf...................exeScan docs. pdf...................exe

pid	process
1508	Scan docs. pdf...................exe
1508	Scan docs. pdf...................exe
1508	Scan docs. pdf...................exe
1508	Scan docs. pdf...................exe
1508	Scan docs. pdf...................exe
1508	Scan docs. pdf...................exe
1508	Scan docs. pdf...................exe
1984	Scan docs. pdf...................exe
1984	Scan docs. pdf...................exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Scan docs. pdf...................exeScan docs. pdf...................exe

description pid process

Token: SeDebugPrivilege 1508 Scan docs. pdf...................exe
Token: SeDebugPrivilege 1984 Scan docs. pdf...................exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

Scan docs. pdf...................exe

pid process

1508 Scan docs. pdf...................exe
1508 Scan docs. pdf...................exe

description	pid	process
Token: SeDebugPrivilege	1508	Scan docs. pdf...................exe
Token: SeDebugPrivilege	1984	Scan docs. pdf...................exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Scan docs. pdf...................exe

description	pid	process	target process
PID 1508 wrote to memory of 424	1508	Scan docs. pdf...................exe	schtasks.exe
PID 1508 wrote to memory of 424	1508	Scan docs. pdf...................exe	schtasks.exe
PID 1508 wrote to memory of 424	1508	Scan docs. pdf...................exe	schtasks.exe
PID 1508 wrote to memory of 424	1508	Scan docs. pdf...................exe	schtasks.exe
PID 1508 wrote to memory of 1984	1508	Scan docs. pdf...................exe	Scan docs. pdf...................exe
PID 1508 wrote to memory of 1984	1508	Scan docs. pdf...................exe	Scan docs. pdf...................exe
PID 1508 wrote to memory of 1984	1508	Scan docs. pdf...................exe	Scan docs. pdf...................exe
PID 1508 wrote to memory of 1984	1508	Scan docs. pdf...................exe	Scan docs. pdf...................exe
PID 1508 wrote to memory of 1984	1508	Scan docs. pdf...................exe	Scan docs. pdf...................exe
PID 1508 wrote to memory of 1984	1508	Scan docs. pdf...................exe	Scan docs. pdf...................exe
PID 1508 wrote to memory of 1984	1508	Scan docs. pdf...................exe	Scan docs. pdf...................exe
PID 1508 wrote to memory of 1984	1508	Scan docs. pdf...................exe	Scan docs. pdf...................exe
PID 1508 wrote to memory of 1984	1508	Scan docs. pdf...................exe	Scan docs. pdf...................exe

outlook_office_path 1 IoCs

Processes:

Scan docs. pdf...................exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan docs. pdf...................exe

outlook_win_path 1 IoCs

Processes:

Scan docs. pdf...................exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan docs. pdf...................exe

C:\Users\Admin\AppData\Local\Temp\Scan docs. pdf...................exe
"C:\Users\Admin\AppData\Local\Temp\Scan docs. pdf...................exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1508

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OmIpirzuSc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBB4.tmp"
2⤵
- Creates scheduled task(s)
PID:424

C:\Users\Admin\AppData\Local\Temp\Scan docs. pdf...................exe
"C:\Users\Admin\AppData\Local\Temp\Scan docs. pdf...................exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1984

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/424-61-0x0000000000000000-mapping.dmp

Download
memory/1508-53-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/1508-55-0x0000000076B61000-0x0000000076B63000-memory.dmp

Filesize
8KB

Download
memory/1508-56-0x0000000004870000-0x0000000004871000-memory.dmp

Filesize
4KB

Download
memory/1508-57-0x0000000004871000-0x0000000004872000-memory.dmp

Filesize
4KB

Download
memory/1508-58-0x0000000004872000-0x0000000004873000-memory.dmp

Filesize
4KB

Download
memory/1508-59-0x0000000001EC0000-0x0000000001EC8000-memory.dmp

Filesize
32KB

Download
memory/1508-60-0x0000000005E80000-0x0000000005ED8000-memory.dmp

Filesize
352KB

Download
memory/1984-62-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1984-63-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1984-64-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1984-65-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1984-66-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1984-67-0x00000000004375EE-mapping.dmp

Download
memory/1984-68-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1984-70-0x0000000004DB0000-0x0000000004DB1000-memory.dmp

Filesize
4KB

Download
memory/1984-71-0x0000000004DB1000-0x0000000004DB2000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads