agenttesla | 94fcf4577759c6ba44c9bc4672ca962f27f7f92c5f5ddac01e2abf53767ce2df

Analysis

max time kernel
93s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16-09-2024 01:02

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General

Target

Trojan.MSIL.Formbook.AMAJ.exe
Size

655KB
MD5

13b35d8e78861524e10b29f6f46a3b20
SHA1

457beca2f81d17662524e3a72da416d56df1b86e
SHA256

94fcf4577759c6ba44c9bc4672ca962f27f7f92c5f5ddac01e2abf53767ce2df
SHA512

e04b6560525aa949328e72672bd75eef7aaef3fcea618d517b45b3844901fe46f027b12e708de42ffe04f64837da746595b121e0e25e8ec5fab41cf454b116da
SSDEEP

12288:ncFGdbZ138dNgrF5aMEgAkxzwhR8ZhdDTidYjsYJznwmie0Bd5E8P3N9i72lPkR:KmSniF5zEgAkx8hIBeyI0nw55xVkEK

Score

10^/10

agenttesla credential_access discovery execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.strato.de
Port:
587
Username:
[email protected]
Password:
Oy1)8JSu_qPx(rzV_{Xu

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.strato.de
Port:
587
Username:
[email protected]
Password:
Oy1)8JSu_qPx(rzV_{Xu
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 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2072	powershell.exe
1700	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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	Trojan.MSIL.Formbook.AMAJ.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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zNAKSP = "C:\\Users\\Admin\\AppData\\Roaming\\zNAKSP\\zNAKSP.exe"	Trojan.MSIL.Formbook.AMAJ.exe

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
22	ip-api.com
20	api.ipify.org
21	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4172 set thread context of 4768	4172	Trojan.MSIL.Formbook.AMAJ.exe	95

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	Trojan.MSIL.Formbook.AMAJ.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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	Trojan.MSIL.Formbook.AMAJ.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
2700	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4172	Trojan.MSIL.Formbook.AMAJ.exe
4172	Trojan.MSIL.Formbook.AMAJ.exe
4172	Trojan.MSIL.Formbook.AMAJ.exe
4172	Trojan.MSIL.Formbook.AMAJ.exe
2072	powershell.exe
4172	Trojan.MSIL.Formbook.AMAJ.exe
1700	powershell.exe
4768	Trojan.MSIL.Formbook.AMAJ.exe
4768	Trojan.MSIL.Formbook.AMAJ.exe
2072	powershell.exe
1700	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4172	Trojan.MSIL.Formbook.AMAJ.exe
Token: SeDebugPrivilege	2072	powershell.exe
Token: SeDebugPrivilege	1700	powershell.exe
Token: SeDebugPrivilege	4768	Trojan.MSIL.Formbook.AMAJ.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4768	Trojan.MSIL.Formbook.AMAJ.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4172 wrote to memory of 2072	4172	Trojan.MSIL.Formbook.AMAJ.exe	89
PID 4172 wrote to memory of 2072	4172	Trojan.MSIL.Formbook.AMAJ.exe	89
PID 4172 wrote to memory of 2072	4172	Trojan.MSIL.Formbook.AMAJ.exe	89
PID 4172 wrote to memory of 1700	4172	Trojan.MSIL.Formbook.AMAJ.exe	91
PID 4172 wrote to memory of 1700	4172	Trojan.MSIL.Formbook.AMAJ.exe	91
PID 4172 wrote to memory of 1700	4172	Trojan.MSIL.Formbook.AMAJ.exe	91
PID 4172 wrote to memory of 2700	4172	Trojan.MSIL.Formbook.AMAJ.exe	93
PID 4172 wrote to memory of 2700	4172	Trojan.MSIL.Formbook.AMAJ.exe	93
PID 4172 wrote to memory of 2700	4172	Trojan.MSIL.Formbook.AMAJ.exe	93
PID 4172 wrote to memory of 4768	4172	Trojan.MSIL.Formbook.AMAJ.exe	95
PID 4172 wrote to memory of 4768	4172	Trojan.MSIL.Formbook.AMAJ.exe	95
PID 4172 wrote to memory of 4768	4172	Trojan.MSIL.Formbook.AMAJ.exe	95
PID 4172 wrote to memory of 4768	4172	Trojan.MSIL.Formbook.AMAJ.exe	95
PID 4172 wrote to memory of 4768	4172	Trojan.MSIL.Formbook.AMAJ.exe	95
PID 4172 wrote to memory of 4768	4172	Trojan.MSIL.Formbook.AMAJ.exe	95
PID 4172 wrote to memory of 4768	4172	Trojan.MSIL.Formbook.AMAJ.exe	95
PID 4172 wrote to memory of 4768	4172	Trojan.MSIL.Formbook.AMAJ.exe	95

C:\Users\Admin\AppData\Local\Temp\Trojan.MSIL.Formbook.AMAJ.exe
"C:\Users\Admin\AppData\Local\Temp\Trojan.MSIL.Formbook.AMAJ.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4172
- 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\Trojan.MSIL.Formbook.AMAJ.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2072
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VjpHToGqhIA.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1700
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VjpHToGqhIA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE109.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2700
- C:\Users\Admin\AppData\Local\Temp\Trojan.MSIL.Formbook.AMAJ.exe
  "C:\Users\Admin\AppData\Local\Temp\Trojan.MSIL.Formbook.AMAJ.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4768

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

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

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

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Downloads

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

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
14417535f2a8db9031f87cb03c1a1380

SHA1
c6e628c204a836cfe18d80fcc1cbb61cb5cf8b62

SHA256
074247b9f8b0933f4cbcf8bdd876cbe6e42b597aa2db7bcdc28282400e6287c9

SHA512
779f82c76075c5d2557a5f9e2bbdc2393d1557f18f402711864be38e922514122ff0b2a422610280b7862a4733e48fa59fef8c0e7188126e19c8a570af1a6fa9

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4jy1livl.bkb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE109.tmp

Filesize
1KB

MD5
806115721ff15f51745970a5e3f34385

SHA1
fd7bba17ffe50ba3908e6a967e5561d7885416cc

SHA256
05766c2fd3d9176a5b304e4f308043d9b2df1939841afef42f795f272be4e2a0

SHA512
b81ca2bb30937c406ac5646b097339136bfbe56d48853fc1cf03f53ea6bc589aa8bc636fed8b5f70c83e5c7835c6ffea4309af4da9296144f95f9ebd34d43e96

Download Submit
memory/1700-72-0x00000000076E0000-0x0000000007783000-memory.dmp

Filesize
652KB

Download
memory/1700-78-0x0000000007AF0000-0x0000000007AFE000-memory.dmp

Filesize
56KB

Download
memory/1700-77-0x0000000007AC0000-0x0000000007AD1000-memory.dmp

Filesize
68KB

Download
memory/1700-74-0x00000000078C0000-0x00000000078DA000-memory.dmp

Filesize
104KB

Download
memory/1700-79-0x0000000007B00000-0x0000000007B14000-memory.dmp

Filesize
80KB

Download
memory/1700-62-0x0000000006AC0000-0x0000000006ADE000-memory.dmp

Filesize
120KB

Download
memory/1700-50-0x0000000007690000-0x00000000076C2000-memory.dmp

Filesize
200KB

Download
memory/1700-51-0x0000000074D70000-0x0000000074DBC000-memory.dmp

Filesize
304KB

Download
memory/1700-36-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/1700-34-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/1700-28-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/1700-89-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/2072-33-0x0000000005B80000-0x0000000005ED4000-memory.dmp

Filesize
3.3MB

Download
memory/2072-61-0x0000000074D70000-0x0000000074DBC000-memory.dmp

Filesize
304KB

Download
memory/2072-18-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/2072-21-0x0000000005A20000-0x0000000005A86000-memory.dmp

Filesize
408KB

Download
memory/2072-20-0x0000000005220000-0x0000000005242000-memory.dmp

Filesize
136KB

Download
memory/2072-17-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/2072-88-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/2072-81-0x0000000007830000-0x0000000007838000-memory.dmp

Filesize
32KB

Download
memory/2072-16-0x00000000053F0000-0x0000000005A18000-memory.dmp

Filesize
6.2MB

Download
memory/2072-80-0x0000000007850000-0x000000000786A000-memory.dmp

Filesize
104KB

Download
memory/2072-49-0x0000000006290000-0x00000000062DC000-memory.dmp

Filesize
304KB

Download
memory/2072-48-0x00000000061F0000-0x000000000620E000-memory.dmp

Filesize
120KB

Download
memory/2072-15-0x0000000004C10000-0x0000000004C46000-memory.dmp

Filesize
216KB

Download
memory/2072-76-0x0000000007790000-0x0000000007826000-memory.dmp

Filesize
600KB

Download
memory/2072-75-0x0000000007580000-0x000000000758A000-memory.dmp

Filesize
40KB

Download
memory/2072-22-0x0000000005A90000-0x0000000005AF6000-memory.dmp

Filesize
408KB

Download
memory/2072-73-0x0000000007B50000-0x00000000081CA000-memory.dmp

Filesize
6.5MB

Download
memory/4172-4-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/4172-8-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/4172-9-0x0000000007330000-0x00000000073B6000-memory.dmp

Filesize
536KB

Download
memory/4172-10-0x00000000099A0000-0x0000000009A3C000-memory.dmp

Filesize
624KB

Download
memory/4172-6-0x0000000005B50000-0x0000000005B60000-memory.dmp

Filesize
64KB

Download
memory/4172-5-0x0000000005A40000-0x0000000005A4A000-memory.dmp

Filesize
40KB

Download
memory/4172-7-0x00000000744CE000-0x00000000744CF000-memory.dmp

Filesize
4KB

Download
memory/4172-47-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/4172-2-0x0000000006040000-0x00000000065E4000-memory.dmp

Filesize
5.6MB

Download
memory/4172-3-0x00000000059A0000-0x0000000005A32000-memory.dmp

Filesize
584KB

Download
memory/4172-1-0x0000000000F10000-0x0000000000FB6000-memory.dmp

Filesize
664KB

Download
memory/4172-0-0x00000000744CE000-0x00000000744CF000-memory.dmp

Filesize
4KB

Download
memory/4768-35-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4768-90-0x0000000006A40000-0x0000000006A90000-memory.dmp

Filesize
320KB

Download