Analysis
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max time kernel
117s -
max time network
118s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
14-09-2024 01:46
Static task
static1
Behavioral task
behavioral1
Sample
Purchase Order.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
Purchase Order.exe
Resource
win10v2004-20240802-en
General
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Target
Purchase Order.exe
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Size
934KB
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MD5
f7f32729079353000cd97b90aa314cc1
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SHA1
21dbddeea2b634263c8fbf0d6178a9751d2467b8
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SHA256
8e29aa00863b1746ba25132f7ecb7bcb869d3a7e647dc8d6d3255491c5ac5212
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SHA512
2c40c12b81e7c377ddf0a6691ebeedc895dcf02c9211a1563b840de735fab77968565b1d3d0c40cc0b2b583fd4bfa1c69f995fca758ea85f548bf5797b5bf847
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SSDEEP
24576:U5dMbYk7zL1hJ5o/C+uOWiw5h6nnjqKoe:U5dkYk/phQ6+hIkjqKoe
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.iaa-airferight.com - Port:
587 - Username:
[email protected] - Password:
webmaster - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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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.
pid Process 4508 powershell.exe 708 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation Purchase Order.exe -
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 20 api.ipify.org 21 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3592 set thread context of 3788 3592 Purchase Order.exe 99 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
description ioc Process 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 RegSvcs.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Purchase Order.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2236 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4508 powershell.exe 708 powershell.exe 4508 powershell.exe 708 powershell.exe 3788 RegSvcs.exe 3788 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4508 powershell.exe Token: SeDebugPrivilege 708 powershell.exe Token: SeDebugPrivilege 3788 RegSvcs.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 3592 wrote to memory of 4508 3592 Purchase Order.exe 93 PID 3592 wrote to memory of 4508 3592 Purchase Order.exe 93 PID 3592 wrote to memory of 4508 3592 Purchase Order.exe 93 PID 3592 wrote to memory of 708 3592 Purchase Order.exe 95 PID 3592 wrote to memory of 708 3592 Purchase Order.exe 95 PID 3592 wrote to memory of 708 3592 Purchase Order.exe 95 PID 3592 wrote to memory of 2236 3592 Purchase Order.exe 97 PID 3592 wrote to memory of 2236 3592 Purchase Order.exe 97 PID 3592 wrote to memory of 2236 3592 Purchase Order.exe 97 PID 3592 wrote to memory of 3788 3592 Purchase Order.exe 99 PID 3592 wrote to memory of 3788 3592 Purchase Order.exe 99 PID 3592 wrote to memory of 3788 3592 Purchase Order.exe 99 PID 3592 wrote to memory of 3788 3592 Purchase Order.exe 99 PID 3592 wrote to memory of 3788 3592 Purchase Order.exe 99 PID 3592 wrote to memory of 3788 3592 Purchase Order.exe 99 PID 3592 wrote to memory of 3788 3592 Purchase Order.exe 99 PID 3592 wrote to memory of 3788 3592 Purchase Order.exe 99
Processes
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C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3592 -
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\Purchase Order.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4508
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TESAYt.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:708
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TESAYt" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF174.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2236
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3788
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD524f64b66b9a138073160621908682a01
SHA14ac57e5704696ad79251d5655d5066ca372285fb
SHA25632a3c009f2629dba9521f15ff378361cd1ea6895d5b1922ccd51704de64bbf49
SHA512c589afc6b7a3eda8b01a2d4a4a9a96b030fafaeace0558585e1e329c242ca37aa8bee6980c5d76b134bc647aa7f250e7568119b143ff49f1978fae4f5184132a
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD51f091f8ab5972b4f9c5117a96b035d30
SHA1d05f7a603873b55e91dc0ad48575078dcdde7cf9
SHA2564098514a5aff1f338d03c3a6207bbb223cb33116ef09c083277cf021842dfd3f
SHA5125813563e18b9b092c207c5e879a7eb04ed7f457deaae670c7aeb5a318aa0187ed7664120585cdc8cc49b4b00762aff659c31cfd813a1f8602dbf442a709adb70