agenttesla | 32ab42e89956de7e5e416d5952a2aac80952b5f97124b27090341ac4463a94d3

Analysis

max time kernel
115s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09-09-2024 10:05

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General

Target

DBG1475766.pdf.scr
Size

666KB
MD5

ceed99d84eed3e759728b9eeea0be0c7
SHA1

54084910a2c7ca660b644dece24e04130fa4d227
SHA256

838053d3c2a1423831cad1dc9b8ca3f036328c05d2cb5c81fbb18dda832aad54
SHA512

7af4117132a1fac74288e0b09a8c49413ad51c6732b493527c8c1462c3c21956cbf8827aae3b7ede27215e28b304682ab5269f8479169f7e07f9dbb5df590838
SSDEEP

12288:XGD8U5frL49pJE2e0ij/btr6YoJ3dk5mYBoD9Qah3irjC9i72lMW:m8U5fg9fE/0ijhrZojksBQqirjCkEMW

Score

10^/10

agenttesla credential_access discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.alitextile.com
Port:
587
Username:
[email protected]
Password:
Myname@321

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.alitextile.com
Port:
587
Username:
[email protected]
Password:
Myname@321
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4708	powershell.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	DBG1475766.pdf.scr

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001

Looks up external IP address via web service 3 IoCs

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

flow	ioc
19	api.ipify.org
21	ip-api.com
18	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4284 set thread context of 1720	4284	DBG1475766.pdf.scr	97

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DBG1475766.pdf.scr
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DBG1475766.pdf.scr

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1108	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4708	powershell.exe
1720	DBG1475766.pdf.scr
1720	DBG1475766.pdf.scr
4708	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4708	powershell.exe
Token: SeDebugPrivilege	1720	DBG1475766.pdf.scr

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1720	DBG1475766.pdf.scr

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4284 wrote to memory of 4708	4284	DBG1475766.pdf.scr	93
PID 4284 wrote to memory of 4708	4284	DBG1475766.pdf.scr	93
PID 4284 wrote to memory of 4708	4284	DBG1475766.pdf.scr	93
PID 4284 wrote to memory of 1108	4284	DBG1475766.pdf.scr	95
PID 4284 wrote to memory of 1108	4284	DBG1475766.pdf.scr	95
PID 4284 wrote to memory of 1108	4284	DBG1475766.pdf.scr	95
PID 4284 wrote to memory of 1720	4284	DBG1475766.pdf.scr	97
PID 4284 wrote to memory of 1720	4284	DBG1475766.pdf.scr	97
PID 4284 wrote to memory of 1720	4284	DBG1475766.pdf.scr	97
PID 4284 wrote to memory of 1720	4284	DBG1475766.pdf.scr	97
PID 4284 wrote to memory of 1720	4284	DBG1475766.pdf.scr	97
PID 4284 wrote to memory of 1720	4284	DBG1475766.pdf.scr	97
PID 4284 wrote to memory of 1720	4284	DBG1475766.pdf.scr	97
PID 4284 wrote to memory of 1720	4284	DBG1475766.pdf.scr	97

C:\Users\Admin\AppData\Local\Temp\DBG1475766.pdf.scr
"C:\Users\Admin\AppData\Local\Temp\DBG1475766.pdf.scr" /S
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4284
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\uZmdtYZy.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4708
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uZmdtYZy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC66D.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1108
- C:\Users\Admin\AppData\Local\Temp\DBG1475766.pdf.scr
  "C:\Users\Admin\AppData\Local\Temp\DBG1475766.pdf.scr"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3kima5wu.lhk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC66D.tmp

Filesize
1KB

MD5
42e233340d17594251c6846d16726be1

SHA1
2b84edd0b8e7c2cde5a282c2dd44af2b2f7e2824

SHA256
ee010867a083ea638b8fda14cece5d467c16c0fbd1932fe222b1f1fed164e3f4

SHA512
f54ed25ac0d8a9af96e702896d006dddd07f36aa6ff9828e22eae6b935b97a320dcaf3d02b08bce7dd6d82fccd642425e293b7950ae05de9ecfa0410be474853

Download Submit
memory/1720-66-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/1720-65-0x0000000007220000-0x0000000007270000-memory.dmp

Filesize
320KB

Download
memory/1720-37-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/1720-24-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4284-10-0x000000000A9C0000-0x000000000AA5C000-memory.dmp

Filesize
624KB

Download
memory/4284-6-0x0000000005BC0000-0x0000000005BD0000-memory.dmp

Filesize
64KB

Download
memory/4284-8-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/4284-9-0x0000000008310000-0x0000000008394000-memory.dmp

Filesize
528KB

Download
memory/4284-0-0x000000007529E000-0x000000007529F000-memory.dmp

Filesize
4KB

Download
memory/4284-1-0x0000000000E80000-0x0000000000F2E000-memory.dmp

Filesize
696KB

Download
memory/4284-2-0x0000000005E90000-0x0000000006434000-memory.dmp

Filesize
5.6MB

Download
memory/4284-7-0x000000007529E000-0x000000007529F000-memory.dmp

Filesize
4KB

Download
memory/4284-3-0x0000000005980000-0x0000000005A12000-memory.dmp

Filesize
584KB

Download
memory/4284-36-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/4284-4-0x0000000005950000-0x000000000595A000-memory.dmp

Filesize
40KB

Download
memory/4284-5-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/4708-38-0x0000000005A90000-0x0000000005AAE000-memory.dmp

Filesize
120KB

Download
memory/4708-54-0x0000000006DB0000-0x0000000006DCA000-memory.dmp

Filesize
104KB

Download
memory/4708-20-0x0000000004BD0000-0x0000000004BF2000-memory.dmp

Filesize
136KB

Download
memory/4708-30-0x0000000005480000-0x00000000057D4000-memory.dmp

Filesize
3.3MB

Download
memory/4708-21-0x00000000052E0000-0x0000000005346000-memory.dmp

Filesize
408KB

Download
memory/4708-22-0x0000000005350000-0x00000000053B6000-memory.dmp

Filesize
408KB

Download
memory/4708-18-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/4708-17-0x0000000004C40000-0x0000000005268000-memory.dmp

Filesize
6.2MB

Download
memory/4708-39-0x0000000005B20000-0x0000000005B6C000-memory.dmp

Filesize
304KB

Download
memory/4708-40-0x0000000006060000-0x0000000006092000-memory.dmp

Filesize
200KB

Download
memory/4708-41-0x0000000075B30000-0x0000000075B7C000-memory.dmp

Filesize
304KB

Download
memory/4708-52-0x0000000006C60000-0x0000000006D03000-memory.dmp

Filesize
652KB

Download
memory/4708-51-0x0000000006040000-0x000000000605E000-memory.dmp

Filesize
120KB

Download
memory/4708-23-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/4708-53-0x0000000007400000-0x0000000007A7A000-memory.dmp

Filesize
6.5MB

Download
memory/4708-55-0x0000000006E20000-0x0000000006E2A000-memory.dmp

Filesize
40KB

Download
memory/4708-56-0x0000000007030000-0x00000000070C6000-memory.dmp

Filesize
600KB

Download
memory/4708-57-0x0000000006FB0000-0x0000000006FC1000-memory.dmp

Filesize
68KB

Download
memory/4708-58-0x0000000006FE0000-0x0000000006FEE000-memory.dmp

Filesize
56KB

Download
memory/4708-59-0x0000000006FF0000-0x0000000007004000-memory.dmp

Filesize
80KB

Download
memory/4708-60-0x00000000070F0000-0x000000000710A000-memory.dmp

Filesize
104KB

Download
memory/4708-61-0x00000000070D0000-0x00000000070D8000-memory.dmp

Filesize
32KB

Download
memory/4708-64-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/4708-16-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/4708-15-0x0000000002180000-0x00000000021B6000-memory.dmp

Filesize
216KB

Download