Analysis
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max time kernel
143s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231025-en -
resource tags
arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system -
submitted
26/11/2023, 16:48
Static task
static1
Behavioral task
behavioral1
Sample
Purchase Order 257463-013.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
Purchase Order 257463-013.exe
Resource
win10v2004-20231025-en
General
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Target
Purchase Order 257463-013.exe
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Size
570KB
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MD5
5051aaf777adf442078cc253bd9b8cf0
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SHA1
2354257cf3d4ba747ad0546744e01508dc23b9a5
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SHA256
0d269c5bad8cff20c0b755f7fc1f712f92bf8344590f68c42e120d1c20d3cadd
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SHA512
6ffcf31ca275f4974436304bad19a7c02d7b0832792cc3a978536c1a71d7b2b10acf68a5d2dfa918a54643fd5bebf215e26e39a36d4924d750019133b868a3fb
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SSDEEP
12288:8E6jD/f0WocBQBc9YsGSlwdh7CqYkMt9ENzr:8tD/CcBDfGSlwdi9ENr
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.alualuminium.com.my - Port:
587 - Username:
[email protected] - Password:
U8G4S13#8Zk$ - 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 2 IoCs
resource yara_rule behavioral2/memory/4936-11-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral2/memory/4936-19-0x0000000005100000-0x0000000005110000-memory.dmp family_snakekeylogger -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.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 18 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4336 set thread context of 4936 4336 Purchase Order 257463-013.exe 94 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4936 MSBuild.exe 4936 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4936 MSBuild.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4336 wrote to memory of 4936 4336 Purchase Order 257463-013.exe 94 PID 4336 wrote to memory of 4936 4336 Purchase Order 257463-013.exe 94 PID 4336 wrote to memory of 4936 4336 Purchase Order 257463-013.exe 94 PID 4336 wrote to memory of 4936 4336 Purchase Order 257463-013.exe 94 PID 4336 wrote to memory of 4936 4336 Purchase Order 257463-013.exe 94 PID 4336 wrote to memory of 4936 4336 Purchase Order 257463-013.exe 94 PID 4336 wrote to memory of 4936 4336 Purchase Order 257463-013.exe 94 PID 4336 wrote to memory of 4936 4336 Purchase Order 257463-013.exe 94 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Purchase Order 257463-013.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order 257463-013.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4336 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4936
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