agenttesla | f3caeea10bc33fbf3a105e0b10998ab1053e95a0df9a9ebdee936f4ac6f1e8d5

General

Target

$57,000.00.exe
Size

709KB
MD5

bf7e3ea1bbaba155ce9079dc9e959501
SHA1

be73007a9ea47dcd70ad4c17f239a78c709829d8
SHA256

8107f9ab5c5030afbbbebfd98280556cc08697cffa66d45548c5e012209d9184
SHA512

ee89bdfd7557ef43f705c5a14e01bbbda3cac74d3ef14361cb4ebe9b45afc22be2e437acc68886abb92fcad8e9145f205956f7c23c348a625f79e28b9ad600c4
SSDEEP

12288:hxBZWR942mwMHGtGeIn+ihCMGkU0yywVn3:h1WR9lptrNKCMGIwV3

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.southernboilers.org
Port:
587
Username:
[email protected]
Password:
Sksmoke2018#
Email To:
[email protected]

Signatures

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

$57,000.00.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	$57,000.00.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:

$57,000.00.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	$57,000.00.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	$57,000.00.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	$57,000.00.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.

Processes:

flow ioc

30 api.ipify.org
31 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

$57,000.00.exe

description pid process target process

PID 5016 set thread context of 2224 5016 $57,000.00.exe $57,000.00.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

3464 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

$57,000.00.exe

pid process

5016 $57,000.00.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

$57,000.00.exe$57,000.00.exe

description pid process

Token: SeDebugPrivilege 5016 $57,000.00.exe
Token: SeDebugPrivilege 2224 $57,000.00.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

$57,000.00.exe

pid process

2224 $57,000.00.exe

flow	ioc
30	api.ipify.org
31	api.ipify.org

description	pid	process	target process
PID 5016 set thread context of 2224	5016	$57,000.00.exe	$57,000.00.exe

pid	process
3464	schtasks.exe

pid	process
5016	$57,000.00.exe

description	pid	process
Token: SeDebugPrivilege	5016	$57,000.00.exe
Token: SeDebugPrivilege	2224	$57,000.00.exe

pid	process
2224	$57,000.00.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

$57,000.00.exe

description	pid	process	target process
PID 5016 wrote to memory of 3464	5016	$57,000.00.exe	schtasks.exe
PID 5016 wrote to memory of 3464	5016	$57,000.00.exe	schtasks.exe
PID 5016 wrote to memory of 3464	5016	$57,000.00.exe	schtasks.exe
PID 5016 wrote to memory of 2224	5016	$57,000.00.exe	$57,000.00.exe
PID 5016 wrote to memory of 2224	5016	$57,000.00.exe	$57,000.00.exe
PID 5016 wrote to memory of 2224	5016	$57,000.00.exe	$57,000.00.exe
PID 5016 wrote to memory of 2224	5016	$57,000.00.exe	$57,000.00.exe
PID 5016 wrote to memory of 2224	5016	$57,000.00.exe	$57,000.00.exe
PID 5016 wrote to memory of 2224	5016	$57,000.00.exe	$57,000.00.exe
PID 5016 wrote to memory of 2224	5016	$57,000.00.exe	$57,000.00.exe
PID 5016 wrote to memory of 2224	5016	$57,000.00.exe	$57,000.00.exe

outlook_office_path 1 IoCs

Processes:

$57,000.00.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	$57,000.00.exe

outlook_win_path 1 IoCs

Processes:

$57,000.00.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	$57,000.00.exe

C:\Users\Admin\AppData\Local\Temp\$57,000.00.exe
"C:\Users\Admin\AppData\Local\Temp\$57,000.00.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5016

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FWTTsFZWRlQez" /XML "C:\Users\Admin\AppData\Local\Temp\tmp272F.tmp"
2⤵
- Creates scheduled task(s)
PID:3464

C:\Users\Admin\AppData\Local\Temp\$57,000.00.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2224

Network

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\$57,000.00.exe.log
Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp272F.tmp
Filesize
1KB

MD5
7af79bd4e4271a6cdcca204cc0895056

SHA1
1e21e1bc3de4a18a7f5d90a12e7165a56856191b

SHA256
0521a8597a47aa89d23ce94e733afbb64b13b2540fbe15998fe9dcfc54caa315

SHA512
867799a99b71a24e84a20f84fb786f3c53b4df643510ac94ec71058e47e32bbfae4a81a9b96f9f28e19ea39f529ee166911b264b1d528851a8652d5759207a66

Download Submit
memory/2224-148-0x0000000004E70000-0x0000000004E80000-memory.dmp

Filesize
64KB

Download
memory/2224-144-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2224-151-0x0000000004E70000-0x0000000004E80000-memory.dmp

Filesize
64KB

Download
memory/2224-150-0x0000000006D90000-0x0000000006F52000-memory.dmp

Filesize
1.8MB

Download
memory/2224-149-0x0000000006AD0000-0x0000000006B20000-memory.dmp

Filesize
320KB

Download
memory/2224-147-0x0000000004DE0000-0x0000000004E46000-memory.dmp

Filesize
408KB

Download
memory/5016-139-0x0000000005800000-0x0000000005810000-memory.dmp

Filesize
64KB

Download
memory/5016-135-0x0000000005BC0000-0x0000000006164000-memory.dmp

Filesize
5.6MB

Download
memory/5016-134-0x0000000005540000-0x00000000055DC000-memory.dmp

Filesize
624KB

Download
memory/5016-140-0x0000000005800000-0x0000000005810000-memory.dmp

Filesize
64KB

Download
memory/5016-133-0x0000000000B00000-0x0000000000BB8000-memory.dmp

Filesize
736KB

Download
memory/5016-136-0x00000000056B0000-0x0000000005742000-memory.dmp

Filesize
584KB

Download
memory/5016-138-0x0000000005750000-0x00000000057A6000-memory.dmp

Filesize
344KB

Download
memory/5016-137-0x00000000055F0000-0x00000000055FA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads