agenttesla | 9bcc5591013f066f47701388e95202aa53483c1b73321eecedafd30de2eb381e

Analysis

max time kernel
95s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01-10-2024 10:55

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General

Target

1.scr
Size

723KB
MD5

df30947662e982996810396f8998687c
SHA1

ab1cca67c1d71f95e516a21995d2965761bc6829
SHA256

9bcc5591013f066f47701388e95202aa53483c1b73321eecedafd30de2eb381e
SHA512

41e148f5bd8fe19754f6c676323a1b022c0e79d3be5c5de8b3fc030e2dedb46877e5ff792da2965fc8cfc701724ea914a61a80d43590e77421820d22bb484b9a
SSDEEP

12288:ZFw5wFD3n6UwXUTCBvvFfg6DUT0/PSnyUt9H+nruF39h9sAFJEyvQXDkR:ZF4K9wXKIvFfZRGyI9enr6H93bnQXW

Score

10^/10

agenttesla discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: ftp
Host:
ftp.fosna.net
Port:
21
Username:
[email protected]
Password:
(=8fPSH$KO_!

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.fosna.net
Port:
21
Username:
[email protected]
Password:
(=8fPSH$KO_!

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
4876	powershell.exe
4464	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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	1.scr

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

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
39	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2552 set thread context of 4332	2552	1.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 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1.scr
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
3568	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4876	powershell.exe
4464	powershell.exe
4332	vbc.exe
4332	vbc.exe
4464	powershell.exe
4876	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4464	powershell.exe
Token: SeDebugPrivilege	4876	powershell.exe
Token: SeDebugPrivilege	4332	vbc.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2552 wrote to memory of 4876	2552	1.scr	91
PID 2552 wrote to memory of 4876	2552	1.scr	91
PID 2552 wrote to memory of 4876	2552	1.scr	91
PID 2552 wrote to memory of 4464	2552	1.scr	93
PID 2552 wrote to memory of 4464	2552	1.scr	93
PID 2552 wrote to memory of 4464	2552	1.scr	93
PID 2552 wrote to memory of 3568	2552	1.scr	95
PID 2552 wrote to memory of 3568	2552	1.scr	95
PID 2552 wrote to memory of 3568	2552	1.scr	95
PID 2552 wrote to memory of 4332	2552	1.scr	97
PID 2552 wrote to memory of 4332	2552	1.scr	97
PID 2552 wrote to memory of 4332	2552	1.scr	97
PID 2552 wrote to memory of 4332	2552	1.scr	97
PID 2552 wrote to memory of 4332	2552	1.scr	97
PID 2552 wrote to memory of 4332	2552	1.scr	97
PID 2552 wrote to memory of 4332	2552	1.scr	97
PID 2552 wrote to memory of 4332	2552	1.scr	97

C:\Users\Admin\AppData\Local\Temp\1.scr
"C:\Users\Admin\AppData\Local\Temp\1.scr" /S
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2552
- 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\1.scr"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4876
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OsYPcQX.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4464
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OsYPcQX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp79C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3568
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4332

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

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

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
6256bf6920a413fd8d5f489c7c88f647

SHA1
164ff252744f7e3ece1478c6f0294201503e4a7b

SHA256
092a42713aef4f19fc1916b671fe91572d8c03ee04b00dd7a889c01e45853a88

SHA512
bdc525ff98f4cc72833bbced75a5bacba2a128f02cc685ea8c5edd4e69f2d07d7a1fdf571a6eca40997bdcb9da25d81eb4a215b5e50d4ba29a31b1e1f4106be4

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sc5zrapi.py2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp79C.tmp

Filesize
1KB

MD5
b7c5bd87517950695d3db121965ad3eb

SHA1
edf6c9ef3060f3e5edfe4209643bb6e03f49ae02

SHA256
5c1aeff8b247bf4ef1998afe828b9d36224eb950e8aa553ad02fab11ef4cd42c

SHA512
f6ab302144db7ceec5ec75590cc1d764b83f1437d769a2cc4df5cc70c7ff012eecbbe9f671cd6c1014fad331252a1340cafcf5013ded0d81622f11dff9a838b9

Download Submit
memory/2552-7-0x0000000074E5E000-0x0000000074E5F000-memory.dmp

Filesize
4KB

Download
memory/2552-1-0x0000000000070000-0x0000000000128000-memory.dmp

Filesize
736KB

Download
memory/2552-6-0x0000000004E80000-0x0000000004E9E000-memory.dmp

Filesize
120KB

Download
memory/2552-47-0x0000000074E50000-0x0000000075600000-memory.dmp

Filesize
7.7MB

Download
memory/2552-8-0x0000000074E50000-0x0000000075600000-memory.dmp

Filesize
7.7MB

Download
memory/2552-9-0x00000000024A0000-0x0000000002524000-memory.dmp

Filesize
528KB

Download
memory/2552-10-0x000000000BE50000-0x000000000BEEC000-memory.dmp

Filesize
624KB

Download
memory/2552-0-0x0000000074E5E000-0x0000000074E5F000-memory.dmp

Filesize
4KB

Download
memory/2552-5-0x0000000004B20000-0x0000000004B2A000-memory.dmp

Filesize
40KB

Download
memory/2552-2-0x0000000005120000-0x00000000056C4000-memory.dmp

Filesize
5.6MB

Download
memory/2552-4-0x0000000074E50000-0x0000000075600000-memory.dmp

Filesize
7.7MB

Download
memory/2552-3-0x0000000004B70000-0x0000000004C02000-memory.dmp

Filesize
584KB

Download
memory/4332-89-0x00000000064D0000-0x0000000006520000-memory.dmp

Filesize
320KB

Download
memory/4332-37-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4464-26-0x00000000060D0000-0x0000000006424000-memory.dmp

Filesize
3.3MB

Download
memory/4464-23-0x00000000056A0000-0x00000000056C2000-memory.dmp

Filesize
136KB

Download
memory/4464-25-0x0000000005F20000-0x0000000005F86000-memory.dmp

Filesize
408KB

Download
memory/4464-24-0x0000000005840000-0x00000000058A6000-memory.dmp

Filesize
408KB

Download
memory/4464-20-0x0000000074E50000-0x0000000075600000-memory.dmp

Filesize
7.7MB

Download
memory/4464-87-0x0000000074E50000-0x0000000075600000-memory.dmp

Filesize
7.7MB

Download
memory/4464-21-0x0000000074E50000-0x0000000075600000-memory.dmp

Filesize
7.7MB

Download
memory/4464-75-0x0000000007AF0000-0x0000000007AFA000-memory.dmp

Filesize
40KB

Download
memory/4464-48-0x0000000006750000-0x000000000676E000-memory.dmp

Filesize
120KB

Download
memory/4464-49-0x0000000006C80000-0x0000000006CCC000-memory.dmp

Filesize
304KB

Download
memory/4464-80-0x0000000007DC0000-0x0000000007DDA000-memory.dmp

Filesize
104KB

Download
memory/4464-62-0x0000000071520000-0x000000007156C000-memory.dmp

Filesize
304KB

Download
memory/4464-76-0x0000000007D00000-0x0000000007D96000-memory.dmp

Filesize
600KB

Download
memory/4876-16-0x0000000074E50000-0x0000000075600000-memory.dmp

Filesize
7.7MB

Download
memory/4876-71-0x0000000006CC0000-0x0000000006D63000-memory.dmp

Filesize
652KB

Download
memory/4876-73-0x0000000007450000-0x0000000007ACA000-memory.dmp

Filesize
6.5MB

Download
memory/4876-74-0x0000000006E00000-0x0000000006E1A000-memory.dmp

Filesize
104KB

Download
memory/4876-51-0x0000000071520000-0x000000007156C000-memory.dmp

Filesize
304KB

Download
memory/4876-61-0x0000000006A40000-0x0000000006A5E000-memory.dmp

Filesize
120KB

Download
memory/4876-77-0x0000000007000000-0x0000000007011000-memory.dmp

Filesize
68KB

Download
memory/4876-78-0x0000000007030000-0x000000000703E000-memory.dmp

Filesize
56KB

Download
memory/4876-79-0x0000000007040000-0x0000000007054000-memory.dmp

Filesize
80KB

Download
memory/4876-50-0x0000000006A80000-0x0000000006AB2000-memory.dmp

Filesize
200KB

Download
memory/4876-81-0x0000000007120000-0x0000000007128000-memory.dmp

Filesize
32KB

Download
memory/4876-19-0x0000000074E50000-0x0000000075600000-memory.dmp

Filesize
7.7MB

Download
memory/4876-17-0x0000000004DB0000-0x00000000053D8000-memory.dmp

Filesize
6.2MB

Download
memory/4876-88-0x0000000074E50000-0x0000000075600000-memory.dmp

Filesize
7.7MB

Download
memory/4876-18-0x0000000074E50000-0x0000000075600000-memory.dmp

Filesize
7.7MB

Download
memory/4876-15-0x0000000000D40000-0x0000000000D76000-memory.dmp

Filesize
216KB

Download