Analysis
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max time kernel
91s -
max time network
136s -
platform
windows10-2004_x64 -
resource
win10v2004-20230621-en -
resource tags
arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system -
submitted
28/06/2023, 01:31
Static task
static1
Behavioral task
behavioral1
Sample
PI No. NM221022.exe
Resource
win7-20230621-en
Behavioral task
behavioral2
Sample
PI No. NM221022.exe
Resource
win10v2004-20230621-en
General
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Target
PI No. NM221022.exe
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Size
643KB
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MD5
7539471d2bfea36d7f1e2dfff7e18e95
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SHA1
6a04b9ae23dcfc6e160517665af762d1e019956b
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SHA256
b02a05196ec846bffbd82d74bb23dc20702bb82b5c3895bff1cd80672a9bbcaa
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SHA512
06fbc6ab497ecbe51ff3fd03bf4cdec3e7fb6fcb2239952b595e46fad3dac4bae2c1a6354e49aab1831305b765ebe5250f134b5cda64b9e1b3b15cf1ddac78f1
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SSDEEP
12288:U5dPG2f2NycjRhjvqBRy8Vlvn0K0foQCsM+TytIYDs2iA5xJhD:s2ZhjvqBggPb0fXpy272n5xb
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.gmail.com - Port:
587 - Username:
[email protected] - Password:
iebtzpacgzyullvo - 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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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-1-5-21-4025927695-1301755775-2607443251-1000\Control Panel\International\Geo\Nation PI No. NM221022.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4025927695-1301755775-2607443251-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PI No. NM221022.exe Key opened \REGISTRY\USER\S-1-5-21-4025927695-1301755775-2607443251-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PI No. NM221022.exe Key opened \REGISTRY\USER\S-1-5-21-4025927695-1301755775-2607443251-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PI No. NM221022.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4025927695-1301755775-2607443251-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OLVXOR = "C:\\Users\\Admin\\AppData\\Roaming\\OLVXOR\\OLVXOR.exe" PI No. NM221022.exe -
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 17 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1080 set thread context of 3316 1080 PI No. NM221022.exe 88 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4196 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1080 PI No. NM221022.exe 1080 PI No. NM221022.exe 4356 powershell.exe 4356 powershell.exe 3316 PI No. NM221022.exe 3316 PI No. NM221022.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1080 PI No. NM221022.exe Token: SeDebugPrivilege 4356 powershell.exe Token: SeDebugPrivilege 3316 PI No. NM221022.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1080 wrote to memory of 4356 1080 PI No. NM221022.exe 84 PID 1080 wrote to memory of 4356 1080 PI No. NM221022.exe 84 PID 1080 wrote to memory of 4356 1080 PI No. NM221022.exe 84 PID 1080 wrote to memory of 4196 1080 PI No. NM221022.exe 86 PID 1080 wrote to memory of 4196 1080 PI No. NM221022.exe 86 PID 1080 wrote to memory of 4196 1080 PI No. NM221022.exe 86 PID 1080 wrote to memory of 3316 1080 PI No. NM221022.exe 88 PID 1080 wrote to memory of 3316 1080 PI No. NM221022.exe 88 PID 1080 wrote to memory of 3316 1080 PI No. NM221022.exe 88 PID 1080 wrote to memory of 3316 1080 PI No. NM221022.exe 88 PID 1080 wrote to memory of 3316 1080 PI No. NM221022.exe 88 PID 1080 wrote to memory of 3316 1080 PI No. NM221022.exe 88 PID 1080 wrote to memory of 3316 1080 PI No. NM221022.exe 88 PID 1080 wrote to memory of 3316 1080 PI No. NM221022.exe 88 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4025927695-1301755775-2607443251-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PI No. NM221022.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4025927695-1301755775-2607443251-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PI No. NM221022.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PI No. NM221022.exe"C:\Users\Admin\AppData\Local\Temp\PI No. NM221022.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1080 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BYDvCizzbDL.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4356
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BYDvCizzbDL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp274E.tmp"2⤵
- Creates scheduled task(s)
PID:4196
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C:\Users\Admin\AppData\Local\Temp\PI No. NM221022.exe"C:\Users\Admin\AppData\Local\Temp\PI No. NM221022.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3316
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5cc3dde60205583dffb0f4d5b5bc766c9
SHA130b10f179b4abca73f4804c9339df5c6383bf2eb
SHA256cb8169e40eda3fc0875c0a6517c7126e63ffaa70bd634abf56aff978a5c35bfd
SHA512c56e56819fb695ac3d48445f562dff015e15cbaa608e61c8b505d017cd04d3b45c5a9e423cd7d976c226a53d01ced7ef0c008a21283ccb867079498c08b4c28a