Analysis
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max time kernel
119s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
29-09-2023 08:47
Static task
static1
Behavioral task
behavioral1
Sample
DHL Shipment Doc.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
DHL Shipment Doc.exe
Resource
win10v2004-20230915-en
General
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Target
DHL Shipment Doc.exe
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Size
573KB
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MD5
a482c55e1c9752304022e21bc1030894
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SHA1
832234dd48fc70bae1fdb55ec46487f96bec8188
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SHA256
a9fc57ab4ffcca4baa8f4fe69708ea3d63d5f85f5f5916bd7870fe547f368e02
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SHA512
8eb52d43dccd2fd451d3197aaefea26fb073f5d6a15d4d64b7a289acf9251b28cb2997a648c2b5b275aec5787c42545145734ed675ce7e02d2196d8a297b0dd4
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SSDEEP
12288:8HnyiRJU/Wc//ZXrM+w1fMfc+WMU6ujEsqbb3drn6q273VWSQ/kRIA:cyFemVr6S9ujENXyw6O
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.ccrsservices.com - Port:
587 - Username:
[email protected] - Password:
pcg359ys - Email To:
[email protected]
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/2760-10-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2760-12-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2760-16-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2760-18-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2760-20-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2760-23-0x0000000004B90000-0x0000000004BD0000-memory.dmp family_snakekeylogger -
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:
DHL Shipment Doc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DHL Shipment Doc.exe Key opened \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DHL Shipment Doc.exe Key opened \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DHL Shipment Doc.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.
Processes:
flow ioc 2 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
DHL Shipment Doc.exedescription pid process target process PID 2016 set thread context of 2760 2016 DHL Shipment Doc.exe DHL Shipment Doc.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
DHL Shipment Doc.exepid process 2760 DHL Shipment Doc.exe 2760 DHL Shipment Doc.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
DHL Shipment Doc.exedescription pid process Token: SeDebugPrivilege 2760 DHL Shipment Doc.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
DHL Shipment Doc.exedescription pid process target process PID 2016 wrote to memory of 2760 2016 DHL Shipment Doc.exe DHL Shipment Doc.exe PID 2016 wrote to memory of 2760 2016 DHL Shipment Doc.exe DHL Shipment Doc.exe PID 2016 wrote to memory of 2760 2016 DHL Shipment Doc.exe DHL Shipment Doc.exe PID 2016 wrote to memory of 2760 2016 DHL Shipment Doc.exe DHL Shipment Doc.exe PID 2016 wrote to memory of 2760 2016 DHL Shipment Doc.exe DHL Shipment Doc.exe PID 2016 wrote to memory of 2760 2016 DHL Shipment Doc.exe DHL Shipment Doc.exe PID 2016 wrote to memory of 2760 2016 DHL Shipment Doc.exe DHL Shipment Doc.exe PID 2016 wrote to memory of 2760 2016 DHL Shipment Doc.exe DHL Shipment Doc.exe PID 2016 wrote to memory of 2760 2016 DHL Shipment Doc.exe DHL Shipment Doc.exe -
outlook_office_path 1 IoCs
Processes:
DHL Shipment Doc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DHL Shipment Doc.exe -
outlook_win_path 1 IoCs
Processes:
DHL Shipment Doc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3750544865-3773649541-1858556521-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DHL Shipment Doc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\DHL Shipment Doc.exe"C:\Users\Admin\AppData\Local\Temp\DHL Shipment Doc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2016 -
C:\Users\Admin\AppData\Local\Temp\DHL Shipment Doc.exe"C:\Users\Admin\AppData\Local\Temp\DHL Shipment Doc.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2760