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

Credentials

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

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 1 IoCs

Processes:

resource	yara_rule
behavioral6/memory/2012-134-0x0000000000400000-0x000000000044C000-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

Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

PICS.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation PICS.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	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-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\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 4480 set thread context of 2012 4480 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

632 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

PICS.exeMSBuild.exe

pid process

4480 PICS.exe
2012 MSBuild.exe
2012 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PICS.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 4480 PICS.exe
Token: SeDebugPrivilege 2012 MSBuild.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

MSBuild.exe

pid process

2012 MSBuild.exe

description	pid	process	target process
PID 4480 set thread context of 2012	4480	PICS.exe	MSBuild.exe

pid	process
632	schtasks.exe

pid	process
4480	PICS.exe
2012	MSBuild.exe
2012	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	4480	PICS.exe
Token: SeDebugPrivilege	2012	MSBuild.exe

pid	process
2012	MSBuild.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

PICS.exe

description	pid	process	target process
PID 4480 wrote to memory of 632	4480	PICS.exe	schtasks.exe
PID 4480 wrote to memory of 632	4480	PICS.exe	schtasks.exe
PID 4480 wrote to memory of 632	4480	PICS.exe	schtasks.exe
PID 4480 wrote to memory of 2012	4480	PICS.exe	MSBuild.exe
PID 4480 wrote to memory of 2012	4480	PICS.exe	MSBuild.exe
PID 4480 wrote to memory of 2012	4480	PICS.exe	MSBuild.exe
PID 4480 wrote to memory of 2012	4480	PICS.exe	MSBuild.exe
PID 4480 wrote to memory of 2012	4480	PICS.exe	MSBuild.exe
PID 4480 wrote to memory of 2012	4480	PICS.exe	MSBuild.exe
PID 4480 wrote to memory of 2012	4480	PICS.exe	MSBuild.exe
PID 4480 wrote to memory of 2012	4480	PICS.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\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-1-5-21-1809750270-3141839489-3074374771-1000\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
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4480

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\duGVhQpbZudexT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp49AB.tmp"
2⤵
- Creates scheduled task(s)
PID:632

C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2012

Network

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

5

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

4

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\tmp49AB.tmp
Filesize
1KB

MD5
100347b55204b7f86c05a478561da6b8

SHA1
9b974aec80a280ca2e5803c9d035c5bdd5ba595e

SHA256
5b60eba57db97b146716736e1224eb5a1b4f85f9a3998adbf23333c4903b92d8

SHA512
bc07f549ef913e70a0b4a13342fe63cb0effd1f7fdce9d5bcfc1392ee7da037bfa86adf8119607c04938157c2e9b0cd6f87c24ff34e6aa7b22c82e3c8879853e

Download Submit
memory/632-131-0x0000000000000000-mapping.dmp

Download
memory/2012-133-0x0000000000000000-mapping.dmp

Download
memory/2012-134-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2012-135-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download
memory/4480-130-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads