agenttesla | 54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c

General

Target

54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe
Size

1.3MB
MD5

6c47d7f12ec4b17a554eeaebfa9e57dd
SHA1

370b78b3d7c65ddd2c74d1537a2cc7fbe753f5ab
SHA256

54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c
SHA512

508532656b1001aae03ac4831c450f9be903aed140f1327b34046b6155543da24483e37ee26edebbaced1b8624936584df8774148705ab3e8c9eae52acc23e34
SSDEEP

24576:/AHnh+eWsN3skA4RV1Hom2KXMmHa2DAoNUGN1RDKqlcrMcVSZPpK+c5:ih+ZkldoPK8Ya2DAMUGlmjMUYPpKt

Score

10^/10

agenttesla collection keylogger persistence 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 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1208-57-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1208-62-0x000000000044A90E-mapping.dmp	family_agenttesla
behavioral1/memory/1208-63-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1208-64-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla

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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegAsm.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\MyApp = "C:\\Users\\Admin\\AppData\\Roaming\\MyApp\\MyApp.exe"	RegAsm.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 checkip.amazonaws.com

flow	ioc
4	checkip.amazonaws.com

Suspicious use of SetThreadContext 1 IoCs

Processes:

54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe

description	pid	process	target process
PID 1764 set thread context of 1208	1764	54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegAsm.exe

pid process

1208 RegAsm.exe
1208 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 1208 RegAsm.exe

pid	process
1208	RegAsm.exe
1208	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	1208	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe

pid	process
1764	54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe
1764	54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe
1764	54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe

Suspicious use of SendNotifyMessage 3 IoCs

Processes:

54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe

pid	process
1764	54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe
1764	54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe
1764	54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegAsm.exe

pid process

1208 RegAsm.exe

pid	process
1208	RegAsm.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe

description	pid	process	target process
PID 1764 wrote to memory of 1208	1764	54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe	RegAsm.exe
PID 1764 wrote to memory of 1208	1764	54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe	RegAsm.exe
PID 1764 wrote to memory of 1208	1764	54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe	RegAsm.exe
PID 1764 wrote to memory of 1208	1764	54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe	RegAsm.exe
PID 1764 wrote to memory of 1208	1764	54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe	RegAsm.exe
PID 1764 wrote to memory of 1208	1764	54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe	RegAsm.exe
PID 1764 wrote to memory of 1208	1764	54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe	RegAsm.exe
PID 1764 wrote to memory of 1208	1764	54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe	RegAsm.exe
PID 1764 wrote to memory of 1208	1764	54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe
"C:\Users\Admin\AppData\Local\Temp\54aa062cdf2608851a04e43b2e24d0449633f5c2f25d202f0a321d58a2a75b8c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1764

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1208

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

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Downloads

memory/1208-55-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1208-57-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1208-62-0x000000000044A90E-mapping.dmp

Download
memory/1208-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1208-64-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1208-66-0x0000000074800000-0x0000000074DAB000-memory.dmp

Filesize
5.7MB

Download
memory/1208-67-0x0000000074800000-0x0000000074DAB000-memory.dmp

Filesize
5.7MB

Download
memory/1764-54-0x0000000076261000-0x0000000076263000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads