agenttesla | d4d10b33131c659ac8c99c0522ec797ab83a6a5b4d6c6d9c13d659d2a08ad12f

General

Target

yevIa4Z99KSppE9.exe
Size

423KB
MD5

aa7bc1c91e5d0436578c580662fc3253
SHA1

76d62a638598aaf315030c3f8c21afff1b0a6cb1
SHA256

a9a90e322d043cf6430fb070d2cf81ea38b36b174add5b06c3d8691c6c605949
SHA512

f854405a1a22d1e7d6ada376efc5550706d29239855c97b98d6696e04f85fb14d6fd732b9339e7c5c52ffe0b282111ee2669b7606ec75cf4b843fae9ca1b85d0

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
Mold4lord231

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/556-61-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/556-62-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/556-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/556-64-0x0000000000446C8E-mapping.dmp	family_agenttesla
behavioral1/memory/556-66-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/556-68-0x0000000000400000-0x000000000044C000-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:

yevIa4Z99KSppE9.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	yevIa4Z99KSppE9.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	yevIa4Z99KSppE9.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	yevIa4Z99KSppE9.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

yevIa4Z99KSppE9.exe

description pid process target process

PID 1640 set thread context of 556 1640 yevIa4Z99KSppE9.exe yevIa4Z99KSppE9.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

988 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

yevIa4Z99KSppE9.exe

pid process

556 yevIa4Z99KSppE9.exe
556 yevIa4Z99KSppE9.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

yevIa4Z99KSppE9.exe

description pid process

Token: SeDebugPrivilege 556 yevIa4Z99KSppE9.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

yevIa4Z99KSppE9.exe

pid process

556 yevIa4Z99KSppE9.exe

description	pid	process	target process
PID 1640 set thread context of 556	1640	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe

pid	process
988	schtasks.exe

pid	process
556	yevIa4Z99KSppE9.exe
556	yevIa4Z99KSppE9.exe

description	pid	process
Token: SeDebugPrivilege	556	yevIa4Z99KSppE9.exe

pid	process
556	yevIa4Z99KSppE9.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

yevIa4Z99KSppE9.exe

description	pid	process	target process
PID 1640 wrote to memory of 988	1640	yevIa4Z99KSppE9.exe	schtasks.exe
PID 1640 wrote to memory of 988	1640	yevIa4Z99KSppE9.exe	schtasks.exe
PID 1640 wrote to memory of 988	1640	yevIa4Z99KSppE9.exe	schtasks.exe
PID 1640 wrote to memory of 988	1640	yevIa4Z99KSppE9.exe	schtasks.exe
PID 1640 wrote to memory of 556	1640	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 1640 wrote to memory of 556	1640	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 1640 wrote to memory of 556	1640	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 1640 wrote to memory of 556	1640	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 1640 wrote to memory of 556	1640	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 1640 wrote to memory of 556	1640	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 1640 wrote to memory of 556	1640	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 1640 wrote to memory of 556	1640	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 1640 wrote to memory of 556	1640	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe

outlook_office_path 1 IoCs

Processes:

yevIa4Z99KSppE9.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	yevIa4Z99KSppE9.exe

outlook_win_path 1 IoCs

Processes:

yevIa4Z99KSppE9.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	yevIa4Z99KSppE9.exe

C:\Users\Admin\AppData\Local\Temp\yevIa4Z99KSppE9.exe
"C:\Users\Admin\AppData\Local\Temp\yevIa4Z99KSppE9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1640

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kNUwplUJIJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD4AE.tmp"
2⤵
- Creates scheduled task(s)
PID:988

C:\Users\Admin\AppData\Local\Temp\yevIa4Z99KSppE9.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:556

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

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD4AE.tmp
Filesize
1KB

MD5
e14c512e591f7d8a5f2d8f778638f2ba

SHA1
d7a9609aab9ebf14edebb5fd279721b179b97011

SHA256
343505af8b316ee983af16a95aae9f24dd44e2903bf406600b672177ffe2ddb3

SHA512
184c9ae09dcd9eaa60f64f7104d00012836b90c8f27c2fd04f3aa929e51cf86b3b5630379995016b62bd34f920df961f65bed08a4e06c708b8d98d1d35ffc9a8

Download Submit
memory/556-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/556-58-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/556-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/556-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/556-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/556-64-0x0000000000446C8E-mapping.dmp

Download
memory/556-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/556-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/556-70-0x00000000745C0000-0x0000000074B6B000-memory.dmp

Filesize
5.7MB

Download
memory/988-56-0x0000000000000000-mapping.dmp

Download
memory/1640-55-0x00000000745C0000-0x0000000074B6B000-memory.dmp

Filesize
5.7MB

Download
memory/1640-54-0x0000000076241000-0x0000000076243000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads