agenttesla | c93b2e5437769a30e512a711ca27632b529736967d1c07b5b497eb9944f70374

General

Target

NYRNC200420511_FreightArrival.exe
Size

446KB
MD5

4e94b9a3025122a9949b79b37eeb3cff
SHA1

a298bbb92765a40d6229da48b5c6c0edbc70f510
SHA256

cb2792644a81d965b332d8d165e1e6f75894b43942a33d7e367f9b3a36d4a2bf
SHA512

8551ea40aa3ee4dfc119b4560bee1c6a501be24b53f209e6b1672902b37a063cdd859822ba5793383ef679364fadc672b03c5752915f5404c75be74bef6678f3

Score

10^/10

agenttesla collection coreentity evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.karmachalets.co.in
Port:
587
Username:
[email protected]
Password:
Akshya@123

Signatures

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

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral2/memory/3192-130-0x0000000000BA0000-0x0000000000C16000-memory.dmp	coreentity

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4172-139-0x0000000000400000-0x0000000000452000-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:

NYRNC200420511_FreightArrival.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	NYRNC200420511_FreightArrival.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	NYRNC200420511_FreightArrival.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:

NYRNC200420511_FreightArrival.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	NYRNC200420511_FreightArrival.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:

NYRNC200420511_FreightArrival.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NYRNC200420511_FreightArrival.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NYRNC200420511_FreightArrival.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NYRNC200420511_FreightArrival.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:

NYRNC200420511_FreightArrival.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	NYRNC200420511_FreightArrival.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	NYRNC200420511_FreightArrival.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

NYRNC200420511_FreightArrival.exe

description pid process target process

PID 3192 set thread context of 4172 3192 NYRNC200420511_FreightArrival.exe NYRNC200420511_FreightArrival.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

484 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

NYRNC200420511_FreightArrival.exeNYRNC200420511_FreightArrival.exe

pid process

3192 NYRNC200420511_FreightArrival.exe
4172 NYRNC200420511_FreightArrival.exe
4172 NYRNC200420511_FreightArrival.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

NYRNC200420511_FreightArrival.exeNYRNC200420511_FreightArrival.exe

description pid process

Token: SeDebugPrivilege 3192 NYRNC200420511_FreightArrival.exe
Token: SeDebugPrivilege 4172 NYRNC200420511_FreightArrival.exe

description	pid	process	target process
PID 3192 set thread context of 4172	3192	NYRNC200420511_FreightArrival.exe	NYRNC200420511_FreightArrival.exe

pid	process
484	schtasks.exe

pid	process
3192	NYRNC200420511_FreightArrival.exe
4172	NYRNC200420511_FreightArrival.exe
4172	NYRNC200420511_FreightArrival.exe

description	pid	process
Token: SeDebugPrivilege	3192	NYRNC200420511_FreightArrival.exe
Token: SeDebugPrivilege	4172	NYRNC200420511_FreightArrival.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

NYRNC200420511_FreightArrival.exeNYRNC200420511_FreightArrival.exe

description	pid	process	target process
PID 3192 wrote to memory of 484	3192	NYRNC200420511_FreightArrival.exe	schtasks.exe
PID 3192 wrote to memory of 484	3192	NYRNC200420511_FreightArrival.exe	schtasks.exe
PID 3192 wrote to memory of 484	3192	NYRNC200420511_FreightArrival.exe	schtasks.exe
PID 3192 wrote to memory of 4172	3192	NYRNC200420511_FreightArrival.exe	NYRNC200420511_FreightArrival.exe
PID 3192 wrote to memory of 4172	3192	NYRNC200420511_FreightArrival.exe	NYRNC200420511_FreightArrival.exe
PID 3192 wrote to memory of 4172	3192	NYRNC200420511_FreightArrival.exe	NYRNC200420511_FreightArrival.exe
PID 3192 wrote to memory of 4172	3192	NYRNC200420511_FreightArrival.exe	NYRNC200420511_FreightArrival.exe
PID 3192 wrote to memory of 4172	3192	NYRNC200420511_FreightArrival.exe	NYRNC200420511_FreightArrival.exe
PID 3192 wrote to memory of 4172	3192	NYRNC200420511_FreightArrival.exe	NYRNC200420511_FreightArrival.exe
PID 3192 wrote to memory of 4172	3192	NYRNC200420511_FreightArrival.exe	NYRNC200420511_FreightArrival.exe
PID 3192 wrote to memory of 4172	3192	NYRNC200420511_FreightArrival.exe	NYRNC200420511_FreightArrival.exe
PID 4172 wrote to memory of 2700	4172	NYRNC200420511_FreightArrival.exe	netsh.exe
PID 4172 wrote to memory of 2700	4172	NYRNC200420511_FreightArrival.exe	netsh.exe
PID 4172 wrote to memory of 2700	4172	NYRNC200420511_FreightArrival.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

NYRNC200420511_FreightArrival.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	NYRNC200420511_FreightArrival.exe

outlook_win_path 1 IoCs

Processes:

NYRNC200420511_FreightArrival.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	NYRNC200420511_FreightArrival.exe

C:\Users\Admin\AppData\Local\Temp\NYRNC200420511_FreightArrival.exe
"C:\Users\Admin\AppData\Local\Temp\NYRNC200420511_FreightArrival.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:3192

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PldCGfbSGLnQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF801.tmp"
2⤵
- Creates scheduled task(s)
PID:484

C:\Users\Admin\AppData\Local\Temp\NYRNC200420511_FreightArrival.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4172

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:2700

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\Microsoft\CLR_v4.0_32\UsageLogs\NYRNC200420511_FreightArrival.exe.log
Filesize
1KB

MD5
e08f822522c617a40840c62e4b0fb45e

SHA1
ae516dca4da5234be6676d3f234c19ec55725be7

SHA256
bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7

SHA512
894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF801.tmp
Filesize
1KB

MD5
3861673dfd379613a6dd0df873f5acb5

SHA1
307a446ba17cc37994587f4f23486cc83477dbca

SHA256
666483471f1a8e8d67c31f218ea8043957b9c7e6faa5501c0cc557cafb5520f2

SHA512
c3815f6bd445a859e826848a7fd596fbc5417600489b7bab5c8ff9bebabfcc209095afc57b096685f456ef8bdfaffa86d3db2974952e90c955661106d563e81d

Download Submit
memory/484-136-0x0000000000000000-mapping.dmp

Download
memory/2700-141-0x0000000000000000-mapping.dmp

Download
memory/3192-133-0x0000000005760000-0x000000000576A000-memory.dmp

Filesize
40KB

Download
memory/3192-135-0x0000000009210000-0x0000000009276000-memory.dmp

Filesize
408KB

Download
memory/3192-134-0x0000000009070000-0x000000000910C000-memory.dmp

Filesize
624KB

Download
memory/3192-130-0x0000000000BA0000-0x0000000000C16000-memory.dmp

Filesize
472KB

Download
memory/3192-132-0x00000000055D0000-0x0000000005662000-memory.dmp

Filesize
584KB

Download
memory/3192-131-0x0000000005AA0000-0x0000000006044000-memory.dmp

Filesize
5.6MB

Download
memory/4172-138-0x0000000000000000-mapping.dmp

Download
memory/4172-139-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/4172-142-0x00000000068A0000-0x00000000068F0000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads