Analysis
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max time kernel
182s -
max time network
163s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
26-11-2022 02:27
Static task
static1
Behavioral task
behavioral1
Sample
INV and NOA.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
INV and NOA.exe
Resource
win10v2004-20220812-en
General
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Target
INV and NOA.exe
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Size
914KB
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MD5
eece97d66f499d5bc467b57dc23fd6aa
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SHA1
cfd55a1a6de54a074c202169e2d1a050727ead6c
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SHA256
b33ad8c19c7d05ef5e089aee474e1c596787329a41323be0ca7401186402ce22
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SHA512
ce17d7659d8220ada495ae64e7cf6c63d1f44a462320bab18a50df1009de94e7b9101f54f22ffd4d00788b6a408a189d7c7f54c5c5147abb0e8e7e796fd737e4
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SSDEEP
24576:36U376CNSebh0qxoRaDXx3CQbk1vYKtSBObztIskFgqIyX:3TXh0q3zxNbcztIObznkVX
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.southernboilers.org - Port:
587 - Username:
[email protected] - Password:
Sksmoke2018# - 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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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:
INV and NOA.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INV and NOA.exe Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INV and NOA.exe Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INV and NOA.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.
Processes:
flow ioc 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
INV and NOA.exedescription pid process target process PID 1400 set thread context of 1276 1400 INV and NOA.exe INV and NOA.exe -
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 4 IoCs
Processes:
INV and NOA.exeINV and NOA.exepid process 1400 INV and NOA.exe 1276 INV and NOA.exe 1276 INV and NOA.exe 1276 INV and NOA.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
INV and NOA.exeINV and NOA.exedescription pid process Token: SeDebugPrivilege 1400 INV and NOA.exe Token: SeDebugPrivilege 1276 INV and NOA.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
INV and NOA.exedescription pid process target process PID 1400 wrote to memory of 2044 1400 INV and NOA.exe schtasks.exe PID 1400 wrote to memory of 2044 1400 INV and NOA.exe schtasks.exe PID 1400 wrote to memory of 2044 1400 INV and NOA.exe schtasks.exe PID 1400 wrote to memory of 2044 1400 INV and NOA.exe schtasks.exe PID 1400 wrote to memory of 1276 1400 INV and NOA.exe INV and NOA.exe PID 1400 wrote to memory of 1276 1400 INV and NOA.exe INV and NOA.exe PID 1400 wrote to memory of 1276 1400 INV and NOA.exe INV and NOA.exe PID 1400 wrote to memory of 1276 1400 INV and NOA.exe INV and NOA.exe PID 1400 wrote to memory of 1276 1400 INV and NOA.exe INV and NOA.exe PID 1400 wrote to memory of 1276 1400 INV and NOA.exe INV and NOA.exe PID 1400 wrote to memory of 1276 1400 INV and NOA.exe INV and NOA.exe PID 1400 wrote to memory of 1276 1400 INV and NOA.exe INV and NOA.exe PID 1400 wrote to memory of 1276 1400 INV and NOA.exe INV and NOA.exe -
outlook_office_path 1 IoCs
Processes:
INV and NOA.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INV and NOA.exe -
outlook_win_path 1 IoCs
Processes:
INV and NOA.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INV and NOA.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\INV and NOA.exe"C:\Users\Admin\AppData\Local\Temp\INV and NOA.exe"1⤵
- 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\TrorzNZhIKQsi" /XML "C:\Users\Admin\AppData\Local\Temp\tmp568A.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\INV and NOA.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp568A.tmpFilesize
1KB
MD5e0dc4b21f3bff34ea00d2bad991db7cc
SHA17813cfb66541028af5138025c8190016075f7d4a
SHA25605dd6486ff5037a30c2f3b3873260e9433db352ba5a39c681ed525b435c37051
SHA51215817c1b6a7a50da54d1eb02972d1a756a677aac4b282211349e34a23a49093e2cc4e94a86696f02621ae5ed45df25b24130425a4473f41b0a3062fd584971a5
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memory/1276-64-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1276-66-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1276-69-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1276-71-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1276-67-0x0000000000437B8E-mapping.dmp
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memory/1276-65-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1276-61-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1276-62-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1400-54-0x00000000012A0000-0x000000000138A000-memory.dmpFilesize
936KB
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memory/1400-55-0x0000000075FB1000-0x0000000075FB3000-memory.dmpFilesize
8KB
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memory/1400-56-0x0000000000210000-0x0000000000222000-memory.dmpFilesize
72KB
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memory/1400-58-0x00000000055D0000-0x000000000564C000-memory.dmpFilesize
496KB
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memory/1400-57-0x0000000005770000-0x0000000005832000-memory.dmpFilesize
776KB
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memory/2044-59-0x0000000000000000-mapping.dmp