Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
14-10-2024 00:41
Static task
static1
Behavioral task
behavioral1
Sample
rPayment_slip.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
rPayment_slip.exe
Resource
win10v2004-20241007-en
General
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Target
rPayment_slip.exe
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Size
969KB
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MD5
743ab8e823bb4d5fafa96b6334c0ce4d
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SHA1
61982f5dda24433c87ed4c24e9f9261c115d84ed
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SHA256
74016b927469a965edfc8bfb29d943b08f71cf2e4b6e756d739b1e926c859439
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SHA512
b9c6ad2f627c2889af8ce4f88956e68d9433eac82217f944f1c6a59a1e50689245792e1ddfdf68c9b1f8b3637ecff22abffebcb43346cdc2443babab6d8bbe06
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SSDEEP
12288:ALkcoxg7v3qnC11ErwIhh0F4qwUgUny5QYEAmD4M+4x88WncL51fG9hcGTa:WfmMv6Ckr7Mny5QYjY88WcNL0a
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.zarlynx.com - Port:
587 - Username:
[email protected] - Password:
mrafie12345678910 - 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 3 IoCs
resource yara_rule behavioral1/memory/2436-3-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2436-7-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2436-5-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
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 4 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1648 set thread context of 2436 1648 rPayment_slip.exe 28 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rPayment_slip.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegSvcs.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language choice.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2436 RegSvcs.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1648 rPayment_slip.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2436 RegSvcs.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 1648 wrote to memory of 2436 1648 rPayment_slip.exe 28 PID 1648 wrote to memory of 2436 1648 rPayment_slip.exe 28 PID 1648 wrote to memory of 2436 1648 rPayment_slip.exe 28 PID 1648 wrote to memory of 2436 1648 rPayment_slip.exe 28 PID 1648 wrote to memory of 2436 1648 rPayment_slip.exe 28 PID 1648 wrote to memory of 2436 1648 rPayment_slip.exe 28 PID 1648 wrote to memory of 2436 1648 rPayment_slip.exe 28 PID 1648 wrote to memory of 2436 1648 rPayment_slip.exe 28 PID 2436 wrote to memory of 2800 2436 RegSvcs.exe 31 PID 2436 wrote to memory of 2800 2436 RegSvcs.exe 31 PID 2436 wrote to memory of 2800 2436 RegSvcs.exe 31 PID 2436 wrote to memory of 2800 2436 RegSvcs.exe 31 PID 2800 wrote to memory of 1028 2800 cmd.exe 33 PID 2800 wrote to memory of 1028 2800 cmd.exe 33 PID 2800 wrote to memory of 1028 2800 cmd.exe 33 PID 2800 wrote to memory of 1028 2800 cmd.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\rPayment_slip.exe"C:\Users\Admin\AppData\Local\Temp\rPayment_slip.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1648 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\rPayment_slip.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2436 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2800 -
C:\Windows\SysWOW64\choice.exechoice /C Y /N /D Y /T 34⤵
- System Location Discovery: System Language Discovery
PID:1028
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