agenttesla | c97a4c93e550502baa51694a07a87ff0999288bb5aeeef044ade8c82f864ed9f

General

Target

[DHL] 7348255142.exe
Size

542KB
MD5

0043cc269ef53ad28a4b1339cd3b0aad
SHA1

b39c9581ad34c6733d4a75104fad34dd21147bee
SHA256

20486793ae98833178cb24180d58511ac0ec100a3c341b7a956b95a13cdd1e72
SHA512

a3c5e7dc1f37a6fa9e9c2d626b6e901b404200d40a07fa941302ac4f5e59bc9a8306119c069c9e8b6de0835b0dbd0c2c958410f468baa28a5f8421bc6a0ef1c1

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
atk9202

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
atk9202

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/5028-138-0x0000000000400000-0x000000000044C000-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:

[DHL] 7348255142.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	[DHL] 7348255142.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:

[DHL] 7348255142.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	[DHL] 7348255142.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	[DHL] 7348255142.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	[DHL] 7348255142.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

[DHL] 7348255142.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe"	[DHL] 7348255142.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

[DHL] 7348255142.exe

description pid process target process

PID 5004 set thread context of 5028 5004 [DHL] 7348255142.exe [DHL] 7348255142.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

4164 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

[DHL] 7348255142.exe

pid process

5028 [DHL] 7348255142.exe
5028 [DHL] 7348255142.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

[DHL] 7348255142.exe

pid process

5028 [DHL] 7348255142.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

[DHL] 7348255142.exe

description pid process

Token: SeDebugPrivilege 5028 [DHL] 7348255142.exe

description	pid	process	target process
PID 5004 set thread context of 5028	5004	[DHL] 7348255142.exe	[DHL] 7348255142.exe

pid	process
4164	schtasks.exe

pid	process
5028	[DHL] 7348255142.exe
5028	[DHL] 7348255142.exe

pid	process
5028	[DHL] 7348255142.exe

description	pid	process
Token: SeDebugPrivilege	5028	[DHL] 7348255142.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

[DHL] 7348255142.exe

description	pid	process	target process
PID 5004 wrote to memory of 4164	5004	[DHL] 7348255142.exe	schtasks.exe
PID 5004 wrote to memory of 4164	5004	[DHL] 7348255142.exe	schtasks.exe
PID 5004 wrote to memory of 4164	5004	[DHL] 7348255142.exe	schtasks.exe
PID 5004 wrote to memory of 5028	5004	[DHL] 7348255142.exe	[DHL] 7348255142.exe
PID 5004 wrote to memory of 5028	5004	[DHL] 7348255142.exe	[DHL] 7348255142.exe
PID 5004 wrote to memory of 5028	5004	[DHL] 7348255142.exe	[DHL] 7348255142.exe
PID 5004 wrote to memory of 5028	5004	[DHL] 7348255142.exe	[DHL] 7348255142.exe
PID 5004 wrote to memory of 5028	5004	[DHL] 7348255142.exe	[DHL] 7348255142.exe
PID 5004 wrote to memory of 5028	5004	[DHL] 7348255142.exe	[DHL] 7348255142.exe
PID 5004 wrote to memory of 5028	5004	[DHL] 7348255142.exe	[DHL] 7348255142.exe
PID 5004 wrote to memory of 5028	5004	[DHL] 7348255142.exe	[DHL] 7348255142.exe

outlook_office_path 1 IoCs

Processes:

[DHL] 7348255142.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	[DHL] 7348255142.exe

outlook_win_path 1 IoCs

Processes:

[DHL] 7348255142.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	[DHL] 7348255142.exe

C:\Users\Admin\AppData\Local\Temp\[DHL] 7348255142.exe
"C:\Users\Admin\AppData\Local\Temp\[DHL] 7348255142.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5004

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GLijRAOs" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA8E2.tmp"
2⤵
- Creates scheduled task(s)
PID:4164

C:\Users\Admin\AppData\Local\Temp\[DHL] 7348255142.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:5028

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

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\tmpA8E2.tmp

Filesize
1KB

MD5
c187406a1451df042c0b1fd13381264e

SHA1
5c431e2545db3c81f062971449a4751379d60fd4

SHA256
db3738073dc048086a8f1ac9ee60772095c745e03e5daf1c393332db76929697

SHA512
c2339bbe0d6a4d2e4df1be1da0847db8483122f8a31c658301e6ac1f0b5f54f0a2fcedf58874ccbe58ad76c5a36b8270062b540cd9ad365139b1cafc394686de

Download Submit
memory/4164-135-0x0000000000000000-mapping.dmp

Download
memory/5004-130-0x0000000000DF0000-0x0000000000E7E000-memory.dmp

Filesize
568KB

Download
memory/5004-131-0x0000000005F50000-0x00000000064F4000-memory.dmp

Filesize
5.6MB

Download
memory/5004-132-0x0000000005890000-0x0000000005922000-memory.dmp

Filesize
584KB

Download
memory/5004-133-0x0000000006500000-0x0000000006686000-memory.dmp

Filesize
1.5MB

Download
memory/5004-134-0x0000000005DA0000-0x0000000005E3C000-memory.dmp

Filesize
624KB

Download
memory/5028-137-0x0000000000000000-mapping.dmp

Download
memory/5028-138-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/5028-139-0x0000000005F20000-0x0000000005F86000-memory.dmp

Filesize
408KB

Download
memory/5028-140-0x0000000006310000-0x0000000006360000-memory.dmp

Filesize
320KB

Download
memory/5028-141-0x00000000068F0000-0x00000000068FA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads