agenttesla | 1133ebdd4a9e4fe36b9860f676c523e0a9f7419b345bc29cd5cbfd4cfc800e3b

General

Target

1133ebdd4a9e4fe36b9860f676c523e0a9f7419b345bc29cd5cbfd4cfc800e3b.exe
Size

216KB
MD5

6000c65c92c57aacb254a0086b11c94f
SHA1

0445ffce0d85572af354edfe744a3762440f5c9b
SHA256

1133ebdd4a9e4fe36b9860f676c523e0a9f7419b345bc29cd5cbfd4cfc800e3b
SHA512

39adae1d57751d6d7680a836dcc49891788354c663405f25eecd18ad6e9456367530557199aef40005e1a71aef783a3670a5d6f46dcb08b51da590116a652cae
SSDEEP

3072:xGVrVtjlopA8k8kGnRmc4UhUa794PJNp3yvzuOioNlBiJZV9XWsUm2KgMM3n9xGL:xfznLTUIwJ/ivznH+9G2LM37TU

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1611551445:AAFDJ3yQMlB3zXJGib2_TFkq1jedBMj3GTw/sendDocument

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/1816-133-0x0000000000370000-0x00000000003AC000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	1133ebdd4a9e4fe36b9860f676c523e0a9f7419b345bc29cd5cbfd4cfc800e3b.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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1133ebdd4a9e4fe36b9860f676c523e0a9f7419b345bc29cd5cbfd4cfc800e3b.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1133ebdd4a9e4fe36b9860f676c523e0a9f7419b345bc29cd5cbfd4cfc800e3b.exe
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1133ebdd4a9e4fe36b9860f676c523e0a9f7419b345bc29cd5cbfd4cfc800e3b.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe"	1133ebdd4a9e4fe36b9860f676c523e0a9f7419b345bc29cd5cbfd4cfc800e3b.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1816	1133ebdd4a9e4fe36b9860f676c523e0a9f7419b345bc29cd5cbfd4cfc800e3b.exe
1816	1133ebdd4a9e4fe36b9860f676c523e0a9f7419b345bc29cd5cbfd4cfc800e3b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1816	1133ebdd4a9e4fe36b9860f676c523e0a9f7419b345bc29cd5cbfd4cfc800e3b.exe

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1133ebdd4a9e4fe36b9860f676c523e0a9f7419b345bc29cd5cbfd4cfc800e3b.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	1133ebdd4a9e4fe36b9860f676c523e0a9f7419b345bc29cd5cbfd4cfc800e3b.exe

C:\Users\Admin\AppData\Local\Temp\1133ebdd4a9e4fe36b9860f676c523e0a9f7419b345bc29cd5cbfd4cfc800e3b.exe
"C:\Users\Admin\AppData\Local\Temp\1133ebdd4a9e4fe36b9860f676c523e0a9f7419b345bc29cd5cbfd4cfc800e3b.exe"
1⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1816

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1816-133-0x0000000000370000-0x00000000003AC000-memory.dmp

Filesize
240KB

Download
memory/1816-134-0x0000000005240000-0x00000000057E4000-memory.dmp

Filesize
5.6MB

Download
memory/1816-135-0x0000000004D80000-0x0000000004E12000-memory.dmp

Filesize
584KB

Download
memory/1816-136-0x0000000005010000-0x00000000050AC000-memory.dmp

Filesize
624KB

Download
memory/1816-137-0x0000000005000000-0x0000000005010000-memory.dmp

Filesize
64KB

Download
memory/1816-138-0x0000000005C30000-0x0000000005C96000-memory.dmp

Filesize
408KB

Download
memory/1816-139-0x0000000005000000-0x0000000005010000-memory.dmp

Filesize
64KB

Download
memory/1816-142-0x00000000060A0000-0x00000000060F0000-memory.dmp

Filesize
320KB

Download
memory/1816-143-0x0000000006080000-0x000000000608A000-memory.dmp

Filesize
40KB

Download

Analysis

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