agenttesla | b812a55ff904cbb2d44d5e857e1f55fc6523c702614a95a5a5c597049a120749

General

Target

PO-098765678000.exe
Size

764KB
MD5

f9617b77cfa61832aa0db5c8cd8e0357
SHA1

95ca6b88193fad7de1a9693639641f42744136c4
SHA256

e2e31ef953c1dee99b1b6ee23c149b568a76d44531457adb0c89eff648c58a55
SHA512

9958f54f5a1fde6e7f6315395080579277958f2e3416e39908576c8fa0b55c162d1d845da203511070d58a2724f88b343ce475b8c63cf544f7f53712f5c50d92
SSDEEP

12288:qUx5U3TB2nJfk+Cs8uOtcTDA/dS+H1cxhNw7HBKQ0oL85yhl04:qUx8b+CxTwoZcxhNw7HHhz

Score

10^/10

agenttesla discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.antoniomayol.com:21
Port:
21
Username:
[email protected]
Password:
cMhKDQUk1{;%

Signatures

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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2416	powershell.exe
596	powershell.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 3 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

Credentials from Web Browsers
T1555.003

Looks up external IP address via web service 1 IoCs

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

flow	ioc
4	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 784 set thread context of 2632	784	PO-098765678000.exe	37

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 5 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	PO-098765678000.exe
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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO-098765678000.exe

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
2784	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2632	PO-098765678000.exe
2632	PO-098765678000.exe
2416	powershell.exe
596	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2632	PO-098765678000.exe
Token: SeDebugPrivilege	2416	powershell.exe
Token: SeDebugPrivilege	596	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 784 wrote to memory of 2416	784	PO-098765678000.exe	31
PID 784 wrote to memory of 2416	784	PO-098765678000.exe	31
PID 784 wrote to memory of 2416	784	PO-098765678000.exe	31
PID 784 wrote to memory of 2416	784	PO-098765678000.exe	31
PID 784 wrote to memory of 596	784	PO-098765678000.exe	33
PID 784 wrote to memory of 596	784	PO-098765678000.exe	33
PID 784 wrote to memory of 596	784	PO-098765678000.exe	33
PID 784 wrote to memory of 596	784	PO-098765678000.exe	33
PID 784 wrote to memory of 2784	784	PO-098765678000.exe	34
PID 784 wrote to memory of 2784	784	PO-098765678000.exe	34
PID 784 wrote to memory of 2784	784	PO-098765678000.exe	34
PID 784 wrote to memory of 2784	784	PO-098765678000.exe	34
PID 784 wrote to memory of 2632	784	PO-098765678000.exe	37
PID 784 wrote to memory of 2632	784	PO-098765678000.exe	37
PID 784 wrote to memory of 2632	784	PO-098765678000.exe	37
PID 784 wrote to memory of 2632	784	PO-098765678000.exe	37
PID 784 wrote to memory of 2632	784	PO-098765678000.exe	37
PID 784 wrote to memory of 2632	784	PO-098765678000.exe	37
PID 784 wrote to memory of 2632	784	PO-098765678000.exe	37
PID 784 wrote to memory of 2632	784	PO-098765678000.exe	37
PID 784 wrote to memory of 2632	784	PO-098765678000.exe	37

C:\Users\Admin\AppData\Local\Temp\PO-098765678000.exe
"C:\Users\Admin\AppData\Local\Temp\PO-098765678000.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:784
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PO-098765678000.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2416
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qRDlxtruHIkHC.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:596
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qRDlxtruHIkHC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp17C5.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2784
- C:\Users\Admin\AppData\Local\Temp\PO-098765678000.exe
  "C:\Users\Admin\AppData\Local\Temp\PO-098765678000.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp17C5.tmp

Filesize
1KB

MD5
27ddbd1e1e5f226cd87a5e287265440a

SHA1
3b3b244a4b1de01b0388a7c9641fc6f7d1160871

SHA256
219914ec3f20af5123768d3d43ca42def571fc40c01d27d0606c38f17b726c22

SHA512
2f262b52cac7f1f9fefd39e2cd1da09ceb5fe29192b2b2582ab11c3a1386407146aa464678b0ef8ffcf9f4402031196937c503745cd353f62bdd74fbce7fc28f

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\RDKX1FFMC9YSUAHJQJL3.temp

Filesize
7KB

MD5
65ada9919b34e0f630ea057997ec2e76

SHA1
6d51cc6e8efe2aca52e890e60632bb08f343ad92

SHA256
cda2308a8d8af101132dd4db1ec3f07a1cf805b3ce20220fbcada9e7a661fb96

SHA512
fb13a56f7e9491ff047051b56252d262a5efbc46769e88f9e89deedd65b2a2dc98e6886f19a8f6d2a8231006e06de378c9fa18f893108556d178e9363d8851c7

Download Submit
memory/784-4-0x0000000073F3E000-0x0000000073F3F000-memory.dmp

Filesize
4KB

Download
memory/784-32-0x0000000073F30000-0x000000007461E000-memory.dmp

Filesize
6.9MB

Download
memory/784-0-0x0000000073F3E000-0x0000000073F3F000-memory.dmp

Filesize
4KB

Download
memory/784-5-0x0000000073F30000-0x000000007461E000-memory.dmp

Filesize
6.9MB

Download
memory/784-6-0x00000000003C0000-0x0000000000444000-memory.dmp

Filesize
528KB

Download
memory/784-2-0x0000000073F30000-0x000000007461E000-memory.dmp

Filesize
6.9MB

Download
memory/784-1-0x0000000001170000-0x0000000001234000-memory.dmp

Filesize
784KB

Download
memory/784-3-0x00000000005E0000-0x00000000005FE000-memory.dmp

Filesize
120KB

Download
memory/2632-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2632-31-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2632-29-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2632-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2632-25-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2632-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2632-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2632-28-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads