agenttesla | dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9

General

Target

dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe
Size

888KB
MD5

26ffc9815e94b01ddf5fd0c2661d18d8
SHA1

85e713a4e99f0ee1b4fd8a9d7fce0afdb0527d17
SHA256

dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9
SHA512

bcfa881adb5dc52a516be484dba723bb9eff1b68c2b96adee38fd3ec637e31631eb72c352bd1a2aa109ffa4295c7dbc0a662c57ed930ba7d6f913ed358f8be80

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Signatures

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

AgentTesla Payload 19 IoCs

Processes:

resource	yara_rule
behavioral1/memory/584-62-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla
behavioral1/memory/584-66-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla
behavioral1/memory/584-65-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla
behavioral1/memory/584-64-0x000000000045ACEE-mapping.dmp	family_agenttesla
behavioral1/memory/584-61-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla
behavioral1/memory/584-70-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla
behavioral1/memory/584-73-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla
behavioral1/memory/584-75-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla
behavioral1/memory/584-76-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla
behavioral1/memory/584-77-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla
behavioral1/memory/584-79-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla
behavioral1/memory/584-78-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla
behavioral1/memory/584-83-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla
behavioral1/memory/584-84-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla
behavioral1/memory/584-81-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla
behavioral1/memory/584-90-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla
behavioral1/memory/584-89-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla
behavioral1/memory/584-87-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla
behavioral1/memory/584-92-0x0000000000090000-0x00000000000F0000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Drops file in Drivers directory 1 IoCs

Processes:

RegAsm.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegAsm.exe
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegAsm.exe

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:

dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe

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:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.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:

dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe

description	pid	process	target process
PID 1660 set thread context of 584	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe

Drops file in Windows directory 1 IoCs

Processes:

dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe

description ioc process

File opened for modification C:\Windows\debug\WIA\uyTthU.exe dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.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

1816 schtasks.exe

description	ioc	process
File opened for modification	C:\Windows\debug\WIA\uyTthU.exe	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe

pid	process
1816	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exeRegAsm.exe

pid	process
1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe
1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe
584	RegAsm.exe
584	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exeRegAsm.exe

description	pid	process
Token: SeDebugPrivilege	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe
Token: SeDebugPrivilege	584	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegAsm.exe

pid process

584 RegAsm.exe

pid	process
584	RegAsm.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe

description	pid	process	target process
PID 1660 wrote to memory of 1816	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	schtasks.exe
PID 1660 wrote to memory of 1816	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	schtasks.exe
PID 1660 wrote to memory of 1816	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	schtasks.exe
PID 1660 wrote to memory of 1816	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	schtasks.exe
PID 1660 wrote to memory of 584	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 1660 wrote to memory of 584	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 1660 wrote to memory of 584	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 1660 wrote to memory of 584	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 1660 wrote to memory of 584	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 1660 wrote to memory of 584	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 1660 wrote to memory of 584	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 1660 wrote to memory of 584	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 1660 wrote to memory of 584	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 1660 wrote to memory of 584	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 1660 wrote to memory of 584	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 1660 wrote to memory of 584	1660	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe
"C:\Users\Admin\AppData\Local\Temp\dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1660

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uyTthU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB52D.tmp"
2⤵
- Creates scheduled task(s)
PID:1816

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:584

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

Credentials in Files

3

T1081

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB52D.tmp
Filesize
1KB

MD5
4f3f6e6eec9dde05bd7af42d526a9951

SHA1
8e242a18f5065597c0fcd01c4c27fb21d22ec807

SHA256
3396937c8557460374c87e82f1ff41ade68334ecc4baba4fb3829d91f7873d66

SHA512
bb420cd1c4ce40c923cdebb58735844355d8cefd130cf5676831323497a5d7cb76b47808914c229b665fb8ae73b9478f44f8136b8f312201ab62ee5fbf210a43

Download Submit
memory/584-73-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-59-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-75-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-58-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-76-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-62-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-66-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-77-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-64-0x000000000045ACEE-mapping.dmp

Download
memory/584-61-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-70-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-93-0x0000000074BF0000-0x000000007519B000-memory.dmp

Filesize
5.7MB

Download
memory/584-92-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-87-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-65-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-79-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-78-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-83-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-84-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-81-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-90-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/584-89-0x0000000000090000-0x00000000000F0000-memory.dmp

Filesize
384KB

Download
memory/1660-55-0x0000000074FE0000-0x000000007558B000-memory.dmp

Filesize
5.7MB

Download
memory/1660-54-0x00000000765F1000-0x00000000765F3000-memory.dmp

Filesize
8KB

Download
memory/1816-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads