Analysis
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max time kernel
132s -
max time network
119s -
platform
windows10_x64 -
resource
win10-en-20211014 -
submitted
12-11-2021 13:25
Static task
static1
Behavioral task
behavioral1
Sample
98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exe
Resource
win10-en-20211014
General
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Target
98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exe
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Size
734KB
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MD5
f2a5e9b90a3c266f888fe2d839048950
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SHA1
2e1e2c50b27fef578dc6e7634b01f8edf7aea909
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SHA256
98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7
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SHA512
fb4b199609ed75cf362e6d094b4703c2732746fa98a88a1bf8c9183ad81053c568cfb4e5da98785df5c275adc41e3fbbe562751fba5572703d7b18fd5e2148e0
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot1923270472:AAFHljVp-f8Q5-X0iy70Vfe0aTch5THPa-U/sendDocument
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/1344-127-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1344-128-0x000000000043775E-mapping.dmp family_agenttesla -
Executes dropped EXE 1 IoCs
Processes:
InstallUtil.exepid process 1344 InstallUtil.exe -
Obfuscated with Agile.Net obfuscator 2 IoCs
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
Processes:
resource yara_rule behavioral1/memory/2808-121-0x0000000005E40000-0x0000000005E61000-memory.dmp agile_net behavioral1/memory/2808-124-0x0000000004C90000-0x000000000518E000-memory.dmp agile_net -
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:
InstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exedescription pid process target process PID 2808 set thread context of 1344 2808 98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exe InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exeInstallUtil.exepid process 2808 98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exe 2808 98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exe 1344 InstallUtil.exe 1344 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exeInstallUtil.exedescription pid process Token: SeDebugPrivilege 2808 98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exe Token: SeDebugPrivilege 1344 InstallUtil.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exedescription pid process target process PID 2808 wrote to memory of 1344 2808 98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exe InstallUtil.exe PID 2808 wrote to memory of 1344 2808 98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exe InstallUtil.exe PID 2808 wrote to memory of 1344 2808 98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exe InstallUtil.exe PID 2808 wrote to memory of 1344 2808 98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exe InstallUtil.exe PID 2808 wrote to memory of 1344 2808 98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exe InstallUtil.exe PID 2808 wrote to memory of 1344 2808 98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exe InstallUtil.exe PID 2808 wrote to memory of 1344 2808 98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exe InstallUtil.exe PID 2808 wrote to memory of 1344 2808 98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exe InstallUtil.exe -
outlook_office_path 1 IoCs
Processes:
InstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe -
outlook_win_path 1 IoCs
Processes:
InstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exe"C:\Users\Admin\AppData\Local\Temp\98f2f77a976c289adaf4fd693ff8b888027461d46184e117388f316209692ff7.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"2⤵
- Executes dropped EXE
- 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
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Downloads
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C:\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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C:\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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memory/1344-127-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1344-139-0x0000000001120000-0x0000000001121000-memory.dmpFilesize
4KB
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memory/1344-136-0x0000000005120000-0x0000000005121000-memory.dmpFilesize
4KB
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memory/1344-135-0x0000000005150000-0x0000000005151000-memory.dmpFilesize
4KB
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memory/1344-128-0x000000000043775E-mapping.dmp
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memory/2808-120-0x0000000004C90000-0x000000000518E000-memory.dmpFilesize
5.0MB
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memory/2808-124-0x0000000004C90000-0x000000000518E000-memory.dmpFilesize
5.0MB
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memory/2808-125-0x0000000006B60000-0x0000000006B6B000-memory.dmpFilesize
44KB
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memory/2808-126-0x0000000009140000-0x0000000009141000-memory.dmpFilesize
4KB
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memory/2808-123-0x0000000005EA0000-0x0000000005EA1000-memory.dmpFilesize
4KB
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memory/2808-122-0x0000000005EE0000-0x0000000005EE1000-memory.dmpFilesize
4KB
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memory/2808-121-0x0000000005E40000-0x0000000005E61000-memory.dmpFilesize
132KB
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memory/2808-115-0x00000000003A0000-0x00000000003A1000-memory.dmpFilesize
4KB
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memory/2808-119-0x0000000004DD0000-0x0000000004DD1000-memory.dmpFilesize
4KB
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memory/2808-118-0x0000000004D30000-0x0000000004D31000-memory.dmpFilesize
4KB
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memory/2808-117-0x0000000005190000-0x0000000005191000-memory.dmpFilesize
4KB