Analysis
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max time kernel
147s -
max time network
136s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
15-05-2024 22:51
Behavioral task
behavioral1
Sample
4be2f9bbaa57368b43ce9424bc3e7fd0_NeikiAnalytics.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
4be2f9bbaa57368b43ce9424bc3e7fd0_NeikiAnalytics.exe
Resource
win10v2004-20240508-en
General
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Target
4be2f9bbaa57368b43ce9424bc3e7fd0_NeikiAnalytics.exe
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Size
256KB
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MD5
4be2f9bbaa57368b43ce9424bc3e7fd0
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SHA1
1bf9a4748328cc5aa2a43efbe7d8c21047b9954c
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SHA256
65a947038ce1565127fa77b13bfc9a21d55e3a6226af2e352693d79bc4fc34c9
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SHA512
b83cc3e8a9ec6e3a32abc2adcf9ce965691eade4ab7233cceb7e4ecac45ed6d23d48835e998a0448bbdec5c2b088e9f27ab765336f0c6579972128906aed0ae8
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SSDEEP
6144:lf4/sJYWd+ZO+oTcboiSLhCGnFo7ksYKFn3DqFn9Wp:lf4QlqMT0oignsd3rp
Malware Config
Signatures
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resource yara_rule behavioral1/files/0x000d000000012331-3.dat aspack_v212_v242 -
Deletes itself 1 IoCs
pid Process 2604 hyybb.exe -
Executes dropped EXE 2 IoCs
pid Process 2604 hyybb.exe 2688 ybwry.exe -
Loads dropped DLL 7 IoCs
pid Process 308 cmd.exe 308 cmd.exe 2604 hyybb.exe 2688 ybwry.exe 2688 ybwry.exe 2688 ybwry.exe 2688 ybwry.exe -
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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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\flate = "c:\\Program Files\\ktrsr\\ybwry.exe \"c:\\Program Files\\ktrsr\\ybwry.dll\",inflate" ybwry.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\y: ybwry.exe File opened (read-only) \??\n: ybwry.exe File opened (read-only) \??\q: ybwry.exe File opened (read-only) \??\r: ybwry.exe File opened (read-only) \??\x: ybwry.exe File opened (read-only) \??\t: ybwry.exe File opened (read-only) \??\w: ybwry.exe File opened (read-only) \??\a: ybwry.exe File opened (read-only) \??\b: ybwry.exe File opened (read-only) \??\k: ybwry.exe File opened (read-only) \??\s: ybwry.exe File opened (read-only) \??\e: ybwry.exe File opened (read-only) \??\j: ybwry.exe File opened (read-only) \??\l: ybwry.exe File opened (read-only) \??\v: ybwry.exe File opened (read-only) \??\o: ybwry.exe File opened (read-only) \??\p: ybwry.exe File opened (read-only) \??\u: ybwry.exe File opened (read-only) \??\z: ybwry.exe File opened (read-only) \??\g: ybwry.exe File opened (read-only) \??\h: ybwry.exe File opened (read-only) \??\i: ybwry.exe File opened (read-only) \??\m: ybwry.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PHYSICALDRIVE0 ybwry.exe -
Drops file in Program Files directory 4 IoCs
description ioc Process File opened for modification \??\c:\Program Files\ktrsr hyybb.exe File created \??\c:\Program Files\ktrsr\ybwry.dll hyybb.exe File created \??\c:\Program Files\ktrsr\ybwry.exe hyybb.exe File opened for modification \??\c:\Program Files\ktrsr\ybwry.exe hyybb.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString ybwry.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 ybwry.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1780 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2688 ybwry.exe 2688 ybwry.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2688 ybwry.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2320 4be2f9bbaa57368b43ce9424bc3e7fd0_NeikiAnalytics.exe 2604 hyybb.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 2320 wrote to memory of 308 2320 4be2f9bbaa57368b43ce9424bc3e7fd0_NeikiAnalytics.exe 28 PID 2320 wrote to memory of 308 2320 4be2f9bbaa57368b43ce9424bc3e7fd0_NeikiAnalytics.exe 28 PID 2320 wrote to memory of 308 2320 4be2f9bbaa57368b43ce9424bc3e7fd0_NeikiAnalytics.exe 28 PID 2320 wrote to memory of 308 2320 4be2f9bbaa57368b43ce9424bc3e7fd0_NeikiAnalytics.exe 28 PID 308 wrote to memory of 1780 308 cmd.exe 30 PID 308 wrote to memory of 1780 308 cmd.exe 30 PID 308 wrote to memory of 1780 308 cmd.exe 30 PID 308 wrote to memory of 1780 308 cmd.exe 30 PID 308 wrote to memory of 2604 308 cmd.exe 31 PID 308 wrote to memory of 2604 308 cmd.exe 31 PID 308 wrote to memory of 2604 308 cmd.exe 31 PID 308 wrote to memory of 2604 308 cmd.exe 31 PID 2604 wrote to memory of 2688 2604 hyybb.exe 32 PID 2604 wrote to memory of 2688 2604 hyybb.exe 32 PID 2604 wrote to memory of 2688 2604 hyybb.exe 32 PID 2604 wrote to memory of 2688 2604 hyybb.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\4be2f9bbaa57368b43ce9424bc3e7fd0_NeikiAnalytics.exe"C:\Users\Admin\AppData\Local\Temp\4be2f9bbaa57368b43ce9424bc3e7fd0_NeikiAnalytics.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2320 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\hyybb.exe "C:\Users\Admin\AppData\Local\Temp\4be2f9bbaa57368b43ce9424bc3e7fd0_NeikiAnalytics.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:308 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- Runs ping.exe
PID:1780
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C:\Users\Admin\AppData\Local\Temp\hyybb.exeC:\Users\Admin\AppData\Local\Temp\\hyybb.exe "C:\Users\Admin\AppData\Local\Temp\4be2f9bbaa57368b43ce9424bc3e7fd0_NeikiAnalytics.exe"3⤵
- Deletes itself
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2604 -
\??\c:\Program Files\ktrsr\ybwry.exe"c:\Program Files\ktrsr\ybwry.exe" "c:\Program Files\ktrsr\ybwry.dll",inflate C:\Users\Admin\AppData\Local\Temp\hyybb.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2688
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
184KB
MD502329f312ecd0f35b6e1601d8d9908e7
SHA17b9b771c8b747c05c56d1087d578aa5f9293d340
SHA256c8811ea2f951becf89ffcaecafeda03f87367e0d14234bc7b98bf19b45102e82
SHA51293cd1ab96f507987a9fe00b23479d2b753e2adf60047b83135fde46b2dd6627082c93a4c56f2b18ac6112b31831af7489dbbced2c53ce3d826f559e1f1709ee0
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Filesize
43KB
MD551138beea3e2c21ec44d0932c71762a8
SHA18939cf35447b22dd2c6e6f443446acc1bf986d58
SHA2565ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d
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Filesize
256KB
MD53df179c4aa3d729e55c8bf7d98bb7585
SHA171c60d0f9b1cac99ce06cf3e0121261ef55b5d16
SHA2564e134dad8e6297d15e6eafb2968504888d0eb51ce6bfc21a9ec931f35f0eecbf
SHA512f0c1c2c1bfc1aa2f9e60e308ea25580fffe29abc4295e214a77159146dd00945302617d47a510344f21ccae053b74f0dcf38dfa6c4afeeb740c8b53f5330aaa9