agenttesla | a8592530826bffe4e397e6f53054c366cef50d567bc9f54ddb4c4a960cb21537

General

Target

PICS.exe
Size

431KB
MD5

c4996221c4549bc88d77fd2f265e6a13
SHA1

8516f1e99b52e4f22f3c4ccd75d7858c669375d5
SHA256

396f3200a662d0bb44c36326b2501aac7eddb8117b78c956d1569a9d1e83729e
SHA512

953f70203797dc35b9bc1e479baf25d417674dfc6c36fc6325caf7f54bfcbb81633b15849efe4c3ee4277b3d1873abf4325bf3c38fb159ee4b036c976726dafe

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.gmail.com
Port:
587
Username:
[email protected]
Password:
z123456789ok

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral5/memory/1768-61-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral5/memory/1768-62-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral5/memory/1768-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral5/memory/1768-64-0x000000000044734E-mapping.dmp	family_agenttesla
behavioral5/memory/1768-66-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral5/memory/1768-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

PICS.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	PICS.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	PICS.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

PICS.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	PICS.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	PICS.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PICS.exe

description pid process target process

PID 1580 set thread context of 1768 1580 PICS.exe MSBuild.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

2008 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

MSBuild.exe

pid process

1768 MSBuild.exe
1768 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description pid process

Token: SeDebugPrivilege 1768 MSBuild.exe

description	pid	process	target process
PID 1580 set thread context of 1768	1580	PICS.exe	MSBuild.exe

pid	process
2008	schtasks.exe

pid	process
1768	MSBuild.exe
1768	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	1768	MSBuild.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

PICS.exe

description	pid	process	target process
PID 1580 wrote to memory of 2008	1580	PICS.exe	schtasks.exe
PID 1580 wrote to memory of 2008	1580	PICS.exe	schtasks.exe
PID 1580 wrote to memory of 2008	1580	PICS.exe	schtasks.exe
PID 1580 wrote to memory of 2008	1580	PICS.exe	schtasks.exe
PID 1580 wrote to memory of 1768	1580	PICS.exe	MSBuild.exe
PID 1580 wrote to memory of 1768	1580	PICS.exe	MSBuild.exe
PID 1580 wrote to memory of 1768	1580	PICS.exe	MSBuild.exe
PID 1580 wrote to memory of 1768	1580	PICS.exe	MSBuild.exe
PID 1580 wrote to memory of 1768	1580	PICS.exe	MSBuild.exe
PID 1580 wrote to memory of 1768	1580	PICS.exe	MSBuild.exe
PID 1580 wrote to memory of 1768	1580	PICS.exe	MSBuild.exe
PID 1580 wrote to memory of 1768	1580	PICS.exe	MSBuild.exe
PID 1580 wrote to memory of 1768	1580	PICS.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\PICS.exe
"C:\Users\Admin\AppData\Local\Temp\PICS.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1580

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\duGVhQpbZudexT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3100.tmp"
2⤵
- Creates scheduled task(s)
PID:2008

C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1768

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

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3100.tmp
Filesize
1KB

MD5
6079d455194ec2631b5f78b6e55e098e

SHA1
c74044f9c872000df19beb194b6d2352f8f4e93a

SHA256
c4df1a8877630054c2c36ea3ff5a693a4b9ab39b9f04c388b8309ce069758bc6

SHA512
6b582c0bf038a869b11ebbeada1e9380761365ea0cd9f44c7bbc402c7f3fc403ccd192e40f5991cdd533cc34dbc64ab85a797ae1ec5ce4136b0c88a7bc0afcdc

Download Submit
memory/1580-55-0x00000000748C0000-0x0000000074E6B000-memory.dmp

Filesize
5.7MB

Download
memory/1580-54-0x0000000076811000-0x0000000076813000-memory.dmp

Filesize
8KB

Download
memory/1768-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1768-58-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1768-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1768-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1768-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1768-64-0x000000000044734E-mapping.dmp

Download
memory/1768-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1768-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1768-70-0x00000000748C0000-0x0000000074E6B000-memory.dmp

Filesize
5.7MB

Download
memory/2008-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads