Analysis
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max time kernel
147s -
max time network
45s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 12:07
Static task
static1
Behavioral task
behavioral1
Sample
PO 300720-FMB.scr
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
PO 300720-FMB.scr
Resource
win10v2004-20220414-en
General
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Target
PO 300720-FMB.scr
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Size
639KB
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MD5
a51b0e45f72d4a6249912da6538c6e2c
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SHA1
c72bdfdbef4a47f1028d405a3a40513a257e3092
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SHA256
a1e30a2a09896194a7b457401dd3a9b405b53aeea17a21ca6b99b2e8da5e2876
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SHA512
4b365b0e1cd0adbbc0c5a2ac0069c8576b4286e019f659f4a85530bd149b3b2fab0f955d753ad978c5223c56f76a996abcde78db60f6eb1c2e097fad1266095c
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.nsmelectronics.com - Port:
587 - Username:
admim@nsmelectronics.com - Password:
Bsuagwu@
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1036-64-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1036-66-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1036-65-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1036-67-0x000000000044761E-mapping.dmp family_agenttesla behavioral1/memory/1036-69-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1036-71-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla -
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
Processes:
PO 300720-FMB.scrdescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO 300720-FMB.scr Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO 300720-FMB.scr Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO 300720-FMB.scr -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PO 300720-FMB.scrdescription pid process target process PID 1692 set thread context of 1036 1692 PO 300720-FMB.scr PO 300720-FMB.scr -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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.
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Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
PO 300720-FMB.scrPO 300720-FMB.scrpid process 1692 PO 300720-FMB.scr 1692 PO 300720-FMB.scr 1692 PO 300720-FMB.scr 1036 PO 300720-FMB.scr 1036 PO 300720-FMB.scr -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
PO 300720-FMB.scrPO 300720-FMB.scrdescription pid process Token: SeDebugPrivilege 1692 PO 300720-FMB.scr Token: SeDebugPrivilege 1036 PO 300720-FMB.scr -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
PO 300720-FMB.scrpid process 1036 PO 300720-FMB.scr -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
PO 300720-FMB.scrdescription pid process target process PID 1692 wrote to memory of 2032 1692 PO 300720-FMB.scr schtasks.exe PID 1692 wrote to memory of 2032 1692 PO 300720-FMB.scr schtasks.exe PID 1692 wrote to memory of 2032 1692 PO 300720-FMB.scr schtasks.exe PID 1692 wrote to memory of 2032 1692 PO 300720-FMB.scr schtasks.exe PID 1692 wrote to memory of 1036 1692 PO 300720-FMB.scr PO 300720-FMB.scr PID 1692 wrote to memory of 1036 1692 PO 300720-FMB.scr PO 300720-FMB.scr PID 1692 wrote to memory of 1036 1692 PO 300720-FMB.scr PO 300720-FMB.scr PID 1692 wrote to memory of 1036 1692 PO 300720-FMB.scr PO 300720-FMB.scr PID 1692 wrote to memory of 1036 1692 PO 300720-FMB.scr PO 300720-FMB.scr PID 1692 wrote to memory of 1036 1692 PO 300720-FMB.scr PO 300720-FMB.scr PID 1692 wrote to memory of 1036 1692 PO 300720-FMB.scr PO 300720-FMB.scr PID 1692 wrote to memory of 1036 1692 PO 300720-FMB.scr PO 300720-FMB.scr PID 1692 wrote to memory of 1036 1692 PO 300720-FMB.scr PO 300720-FMB.scr -
outlook_office_path 1 IoCs
Processes:
PO 300720-FMB.scrdescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO 300720-FMB.scr -
outlook_win_path 1 IoCs
Processes:
PO 300720-FMB.scrdescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO 300720-FMB.scr
Processes
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C:\Users\Admin\AppData\Local\Temp\PO 300720-FMB.scr"C:\Users\Admin\AppData\Local\Temp\PO 300720-FMB.scr" /S1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE782.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PO 300720-FMB.scr"C:\Users\Admin\AppData\Local\Temp\PO 300720-FMB.scr"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\tmpE782.tmpFilesize
1KB
MD5c5e5a486021e6137551a468cae265a0f
SHA13f6695a9cb933ec75a064cd18dbb6fb5e8e9ac75
SHA256bfce6d0113e09a260e399ae12b7620c7ac495ca8fedf8093a50b9e55b687bf02
SHA5125947c65bbf87b30f7213aae37c024c8645c4499531846a4fd8318e854a357a1dca928080b481626c2c1606b9e8ebdafd88dd1830e09a11fc5aeb8bc057b028cf
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memory/1036-64-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1036-65-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1036-71-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1036-69-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1036-67-0x000000000044761E-mapping.dmp
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memory/1036-66-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1036-61-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1036-62-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1692-54-0x0000000000A80000-0x0000000000B26000-memory.dmpFilesize
664KB
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memory/1692-55-0x00000000763E1000-0x00000000763E3000-memory.dmpFilesize
8KB
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memory/1692-56-0x0000000000280000-0x000000000028A000-memory.dmpFilesize
40KB
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memory/1692-58-0x0000000004B90000-0x0000000004BDE000-memory.dmpFilesize
312KB
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memory/1692-57-0x0000000006E40000-0x0000000006EA6000-memory.dmpFilesize
408KB
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memory/2032-59-0x0000000000000000-mapping.dmp