agenttesla | b2e3994ebb72e0dccce7114c073f2917889fa09a3036d21a0f7a8b715ea77a8d

Analysis

max time kernel
146s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
12/07/2023, 14:12

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General

Target

file.exe
Size

87KB
MD5

51594d6b7e82c4971ded4889197cc587
SHA1

f5271aa81fdd5fdad6c385b691788bb66bc576eb
SHA256

b2e3994ebb72e0dccce7114c073f2917889fa09a3036d21a0f7a8b715ea77a8d
SHA512

e22cca36abd573cdd3cab9a94def51a38be75b412b2d0b093c9312f7d45912f3c8645c386be218404715810fbfc65291f0b2d8fec34751e11667e8c0ebd88368
SSDEEP

1536:IkS07t1MVRZo4lgQ4Bj4ozyXt3sydyc4F9nY++cq7EQQ9dcfS95ct4KY6lLiHnJH:5SY8Vi23tmFpJq7OcS95c7leHR

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

https://api.telegram.org/bot6381763542:AAGPjs0vqAwhS1NRGwd5klpiWT8aP65rMm4/

Signatures

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Wyppn.vbs	file.exe

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-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	file.exe
Key opened	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	file.exe
Key opened	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	file.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
64	api.ipify.org
65	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2304 set thread context of 1888	2304	file.exe	97

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1888	file.exe
1888	file.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2304	file.exe
Token: SeDebugPrivilege	1888	file.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1888	file.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 1888	2304	file.exe	97
PID 2304 wrote to memory of 1888	2304	file.exe	97
PID 2304 wrote to memory of 1888	2304	file.exe	97
PID 2304 wrote to memory of 1888	2304	file.exe	97
PID 2304 wrote to memory of 1888	2304	file.exe	97
PID 2304 wrote to memory of 1888	2304	file.exe	97
PID 2304 wrote to memory of 1888	2304	file.exe	97
PID 2304 wrote to memory of 1888	2304	file.exe	97

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	file.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	file.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Users\Admin\AppData\Local\Temp\file.exe
  C:\Users\Admin\AppData\Local\Temp\file.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1888

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\file.exe.log

Filesize
1KB

MD5
a13312e452bb67b8b110b6d7fbc6cf6f

SHA1
057c5cc1d9b4c48eb1cb78463d8d7599f8fd8a50

SHA256
d5e1315b62697659a967e9aaac291e96ab9cc7d90bab47bc30e6c338a81f479b

SHA512
1e60ceb2af03e9eb8a347bf0ae2e57601ca82e51ec14962eba368393da46f939ff0429d54d59c8a90fbc8f32ed71c880634e0239ccc26c86c40496acdac7b9b0

Download Submit
memory/1888-1472-0x0000000005220000-0x0000000005230000-memory.dmp

Filesize
64KB

Download
memory/1888-1471-0x0000000006820000-0x000000000682A000-memory.dmp

Filesize
40KB

Download
memory/1888-1470-0x0000000006680000-0x0000000006712000-memory.dmp

Filesize
584KB

Download
memory/1888-1469-0x0000000006590000-0x00000000065E0000-memory.dmp

Filesize
320KB

Download
memory/1888-1468-0x0000000005220000-0x0000000005230000-memory.dmp

Filesize
64KB

Download
memory/1888-1467-0x0000000004F00000-0x0000000004F66000-memory.dmp

Filesize
408KB

Download
memory/1888-1466-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2304-173-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-183-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-147-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-151-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-153-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-155-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-157-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-159-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-161-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-163-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-165-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-167-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-169-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-171-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-133-0x0000000000300000-0x000000000031C000-memory.dmp

Filesize
112KB

Download
memory/2304-175-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-177-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-179-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-181-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-149-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-185-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-187-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-189-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-191-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-193-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-195-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-197-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-199-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-1458-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

Filesize
64KB

Download
memory/2304-1459-0x0000000005650000-0x0000000005651000-memory.dmp

Filesize
4KB

Download
memory/2304-1460-0x0000000006D00000-0x00000000072A4000-memory.dmp

Filesize
5.6MB

Download
memory/2304-145-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-143-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-141-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-139-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-137-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-136-0x00000000060A0000-0x0000000006177000-memory.dmp

Filesize
860KB

Download
memory/2304-135-0x00000000061C0000-0x00000000061E2000-memory.dmp

Filesize
136KB

Download
memory/2304-134-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

Filesize
64KB

Download