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 15 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2548-136-0x0000000000620000-0x0000000000680000-memory.dmp	family_agenttesla
behavioral2/memory/2548-137-0x0000000000620000-0x0000000000680000-memory.dmp	family_agenttesla
behavioral2/memory/2548-135-0x0000000000620000-0x0000000000680000-memory.dmp	family_agenttesla
behavioral2/memory/2548-139-0x0000000000620000-0x0000000000680000-memory.dmp	family_agenttesla
behavioral2/memory/2548-138-0x0000000000620000-0x0000000000680000-memory.dmp	family_agenttesla
behavioral2/memory/2548-140-0x0000000000620000-0x0000000000680000-memory.dmp	family_agenttesla
behavioral2/memory/2548-141-0x0000000000620000-0x0000000000680000-memory.dmp	family_agenttesla
behavioral2/memory/2548-142-0x0000000000620000-0x0000000000680000-memory.dmp	family_agenttesla
behavioral2/memory/2548-144-0x0000000000620000-0x0000000000680000-memory.dmp	family_agenttesla
behavioral2/memory/2548-146-0x0000000000620000-0x0000000000680000-memory.dmp	family_agenttesla
behavioral2/memory/2548-147-0x0000000000620000-0x0000000000680000-memory.dmp	family_agenttesla
behavioral2/memory/2548-150-0x0000000000620000-0x0000000000680000-memory.dmp	family_agenttesla
behavioral2/memory/2548-152-0x0000000000620000-0x0000000000680000-memory.dmp	family_agenttesla
behavioral2/memory/2548-153-0x0000000000620000-0x0000000000680000-memory.dmp	family_agenttesla
behavioral2/memory/2548-156-0x0000000000620000-0x0000000000680000-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

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:

dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	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-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe

description	pid	process	target process
PID 3420 set thread context of 2548	3420	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.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

4080 schtasks.exe

pid	process
4080	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exeRegAsm.exe

pid	process
3420	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe
3420	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe
2548	RegAsm.exe
2548	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exeRegAsm.exe

description	pid	process
Token: SeDebugPrivilege	3420	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe
Token: SeDebugPrivilege	2548	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegAsm.exe

pid process

2548 RegAsm.exe

pid	process
2548	RegAsm.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe

description	pid	process	target process
PID 3420 wrote to memory of 4080	3420	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	schtasks.exe
PID 3420 wrote to memory of 4080	3420	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	schtasks.exe
PID 3420 wrote to memory of 4080	3420	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	schtasks.exe
PID 3420 wrote to memory of 2548	3420	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 3420 wrote to memory of 2548	3420	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 3420 wrote to memory of 2548	3420	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 3420 wrote to memory of 2548	3420	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 3420 wrote to memory of 2548	3420	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 3420 wrote to memory of 2548	3420	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 3420 wrote to memory of 2548	3420	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe
PID 3420 wrote to memory of 2548	3420	dc9f08e33f838dadaccb6146b51f0ef73d9d7c2bc9199dc5d81109f0fd43b1d9.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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-1-5-21-2632097139-1792035885-811742494-1000\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
- 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:3420

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uyTthU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp19E1.tmp"
2⤵
- Creates scheduled task(s)
PID:4080

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:2548

Network

MITRE ATT&CK Enterprise 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

Peripheral Device Discovery

Query Registry

System Information Discovery

4

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp19E1.tmp
Filesize
1KB

MD5
10c8e84c29908fa253dba0696ef696d9

SHA1
6c56f1eb7ebf8e1d996bd11b3247942456b755ff

SHA256
493bff048e3df006dff4d2fb0f4eea8bd5dd9a8fb6717a780ff72550e9614771

SHA512
a0f07efe900938329b8fa3a803ad90363aed3761602eef077b3187bd2609f23469c8f7d96bfcbae0a2231189cd083c566218483550d776e7aca79817bf96364d

Download Submit
memory/2548-141-0x0000000000620000-0x0000000000680000-memory.dmp

Filesize
384KB

Download
memory/2548-154-0x0000000074970000-0x0000000074F21000-memory.dmp

Filesize
5.7MB

Download
memory/2548-140-0x0000000000620000-0x0000000000680000-memory.dmp

Filesize
384KB

Download
memory/2548-136-0x0000000000620000-0x0000000000680000-memory.dmp

Filesize
384KB

Download
memory/2548-137-0x0000000000620000-0x0000000000680000-memory.dmp

Filesize
384KB

Download
memory/2548-135-0x0000000000620000-0x0000000000680000-memory.dmp

Filesize
384KB

Download
memory/2548-139-0x0000000000620000-0x0000000000680000-memory.dmp

Filesize
384KB

Download
memory/2548-138-0x0000000000620000-0x0000000000680000-memory.dmp

Filesize
384KB

Download
memory/2548-133-0x0000000000000000-mapping.dmp

Download
memory/2548-156-0x0000000000620000-0x0000000000680000-memory.dmp

Filesize
384KB

Download
memory/2548-144-0x0000000000620000-0x0000000000680000-memory.dmp

Filesize
384KB

Download
memory/2548-142-0x0000000000620000-0x0000000000680000-memory.dmp

Filesize
384KB

Download
memory/2548-146-0x0000000000620000-0x0000000000680000-memory.dmp

Filesize
384KB

Download
memory/2548-147-0x0000000000620000-0x0000000000680000-memory.dmp

Filesize
384KB

Download
memory/2548-150-0x0000000000620000-0x0000000000680000-memory.dmp

Filesize
384KB

Download
memory/2548-152-0x0000000000620000-0x0000000000680000-memory.dmp

Filesize
384KB

Download
memory/2548-153-0x0000000000620000-0x0000000000680000-memory.dmp

Filesize
384KB

Download
memory/3420-130-0x0000000074970000-0x0000000074F21000-memory.dmp

Filesize
5.7MB

Download
memory/4080-131-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads