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

Credentials

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

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 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/216-135-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

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:

yevIa4Z99KSppE9.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	yevIa4Z99KSppE9.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:

yevIa4Z99KSppE9.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	yevIa4Z99KSppE9.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	yevIa4Z99KSppE9.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\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 4116 set thread context of 216 4116 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

548 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

yevIa4Z99KSppE9.exeyevIa4Z99KSppE9.exe

pid process

4116 yevIa4Z99KSppE9.exe
4116 yevIa4Z99KSppE9.exe
4116 yevIa4Z99KSppE9.exe
216 yevIa4Z99KSppE9.exe
216 yevIa4Z99KSppE9.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

yevIa4Z99KSppE9.exeyevIa4Z99KSppE9.exe

description pid process

Token: SeDebugPrivilege 4116 yevIa4Z99KSppE9.exe
Token: SeDebugPrivilege 216 yevIa4Z99KSppE9.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

yevIa4Z99KSppE9.exe

pid process

216 yevIa4Z99KSppE9.exe

description	pid	process	target process
PID 4116 set thread context of 216	4116	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe

pid	process
548	schtasks.exe

pid	process
4116	yevIa4Z99KSppE9.exe
4116	yevIa4Z99KSppE9.exe
4116	yevIa4Z99KSppE9.exe
216	yevIa4Z99KSppE9.exe
216	yevIa4Z99KSppE9.exe

description	pid	process
Token: SeDebugPrivilege	4116	yevIa4Z99KSppE9.exe
Token: SeDebugPrivilege	216	yevIa4Z99KSppE9.exe

pid	process
216	yevIa4Z99KSppE9.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

yevIa4Z99KSppE9.exe

description	pid	process	target process
PID 4116 wrote to memory of 548	4116	yevIa4Z99KSppE9.exe	schtasks.exe
PID 4116 wrote to memory of 548	4116	yevIa4Z99KSppE9.exe	schtasks.exe
PID 4116 wrote to memory of 548	4116	yevIa4Z99KSppE9.exe	schtasks.exe
PID 4116 wrote to memory of 4468	4116	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 4116 wrote to memory of 4468	4116	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 4116 wrote to memory of 4468	4116	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 4116 wrote to memory of 216	4116	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 4116 wrote to memory of 216	4116	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 4116 wrote to memory of 216	4116	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 4116 wrote to memory of 216	4116	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 4116 wrote to memory of 216	4116	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 4116 wrote to memory of 216	4116	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 4116 wrote to memory of 216	4116	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe
PID 4116 wrote to memory of 216	4116	yevIa4Z99KSppE9.exe	yevIa4Z99KSppE9.exe

outlook_office_path 1 IoCs

Processes:

yevIa4Z99KSppE9.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\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-1-5-21-1809750270-3141839489-3074374771-1000\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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4116

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kNUwplUJIJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1722.tmp"
2⤵
- Creates scheduled task(s)
PID:548

C:\Users\Admin\AppData\Local\Temp\yevIa4Z99KSppE9.exe
"{path}"
2⤵
PID:4468

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:216

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

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

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\tmp1722.tmp

Filesize
1KB

MD5
4fbab9900b0c9e2e5deb830d3a29bbb1

SHA1
9de3c1574525500293950b781c44acdf6094e454

SHA256
be3d40fcdbe26b2ad7e42454a65c19074f7876b0ec7c3a934c4efca78c61ec04

SHA512
1e2188f44c0efb7e5e8271aac0955b963390c9eeb10b1d72990ec076fd95068b74d624c550334c99128ade49d17e126b67be503ccc539e30b23772d6571da3d4

Download Submit
memory/216-134-0x0000000000000000-mapping.dmp

Download
memory/216-135-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/216-136-0x0000000074CD0000-0x0000000075281000-memory.dmp

Filesize
5.7MB

Download
memory/548-131-0x0000000000000000-mapping.dmp

Download
memory/4116-130-0x0000000074CD0000-0x0000000075281000-memory.dmp

Filesize
5.7MB

Download
memory/4468-133-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads