agenttesla | 257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc

Analysis

max time kernel
118s
max time network
137s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-09-2024 17:19

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General

Target

257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe
Size

668KB
MD5

a3ef821627916a0e159c90de54b792c8
SHA1

8465ecd7f2020c1fc24b576c938cf349f157d0e7
SHA256

257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc
SHA512

0e143bd00739f9ab9152469afdf1bff5276362945426413c2aa5f8fe02ba89a1304298fd52499112c3e4f936301ece530ada0f859d2fd5435c057a75623147f0
SSDEEP

12288:y4ndmopBj/UqGCrsg5Nx9GmTvC/MTYaF4U34/ccHS:fngOMuVrTvC/9aC641y

Score

10^/10

agenttesla credential_access discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.privateemail.com
Port:
587
Username:
[email protected]
Password:
mGr{)g5TVG3j
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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe	Powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
2144	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe

Loads dropped DLL 1 IoCs

pid	Process
3024	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe

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 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
T1552.001
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 2 IoCs

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

flow	ioc
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3024 set thread context of 2144	3024	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe	33

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2212	Powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2212	Powershell.exe
2144	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe
2144	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2212	Powershell.exe
Token: SeDebugPrivilege	2144	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 3024 wrote to memory of 2212	3024	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe	31
PID 3024 wrote to memory of 2212	3024	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe	31
PID 3024 wrote to memory of 2212	3024	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe	31
PID 3024 wrote to memory of 2212	3024	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe	31
PID 3024 wrote to memory of 2144	3024	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe	33
PID 3024 wrote to memory of 2144	3024	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe	33
PID 3024 wrote to memory of 2144	3024	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe	33
PID 3024 wrote to memory of 2144	3024	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe	33
PID 3024 wrote to memory of 2144	3024	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe	33
PID 3024 wrote to memory of 2144	3024	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe	33
PID 3024 wrote to memory of 2144	3024	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe	33
PID 3024 wrote to memory of 2144	3024	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe	33
PID 3024 wrote to memory of 2144	3024	257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe	33

C:\Users\Admin\AppData\Local\Temp\257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe
"C:\Users\Admin\AppData\Local\Temp\257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'
  2⤵
  - Drops startup file
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2212
- C:\Users\Admin\AppData\Local\Temp\257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe
  "C:\Users\Admin\AppData\Local\Temp\257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2144

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc.exe

Filesize
668KB

MD5
a3ef821627916a0e159c90de54b792c8

SHA1
8465ecd7f2020c1fc24b576c938cf349f157d0e7

SHA256
257e99de5649380c28fdc949731a22dc8b7d832382addb0adad3338072bf6bfc

SHA512
0e143bd00739f9ab9152469afdf1bff5276362945426413c2aa5f8fe02ba89a1304298fd52499112c3e4f936301ece530ada0f859d2fd5435c057a75623147f0

Download Submit
memory/2144-19-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2144-21-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2144-23-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2144-27-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2144-31-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2144-32-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2144-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2144-18-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2212-12-0x000000006F6C0000-0x000000006FC6B000-memory.dmp

Filesize
5.7MB

Download
memory/2212-8-0x000000006F6C1000-0x000000006F6C2000-memory.dmp

Filesize
4KB

Download
memory/2212-14-0x000000006F6C0000-0x000000006FC6B000-memory.dmp

Filesize
5.7MB

Download
memory/2212-9-0x000000006F6C0000-0x000000006FC6B000-memory.dmp

Filesize
5.7MB

Download
memory/2212-11-0x000000006F6C0000-0x000000006FC6B000-memory.dmp

Filesize
5.7MB

Download
memory/2212-10-0x000000006F6C0000-0x000000006FC6B000-memory.dmp

Filesize
5.7MB

Download
memory/3024-15-0x00000000003A0000-0x00000000003A8000-memory.dmp

Filesize
32KB

Download
memory/3024-0-0x000000007461E000-0x000000007461F000-memory.dmp

Filesize
4KB

Download
memory/3024-5-0x0000000074610000-0x0000000074CFE000-memory.dmp

Filesize
6.9MB

Download
memory/3024-4-0x000000007461E000-0x000000007461F000-memory.dmp

Filesize
4KB

Download
memory/3024-3-0x0000000074610000-0x0000000074CFE000-memory.dmp

Filesize
6.9MB

Download
memory/3024-2-0x0000000004B80000-0x0000000004BF0000-memory.dmp

Filesize
448KB

Download
memory/3024-1-0x0000000001020000-0x00000000010CE000-memory.dmp

Filesize
696KB

Download
memory/3024-33-0x0000000074610000-0x0000000074CFE000-memory.dmp

Filesize
6.9MB

Download