Analysis
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max time kernel
140s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
07/05/2024, 01:59
Static task
static1
Behavioral task
behavioral1
Sample
4bd87d24066d91830ef74d3aa71a2630_NEAS.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
4bd87d24066d91830ef74d3aa71a2630_NEAS.exe
Resource
win10v2004-20240419-en
General
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Target
4bd87d24066d91830ef74d3aa71a2630_NEAS.exe
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Size
211KB
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MD5
4bd87d24066d91830ef74d3aa71a2630
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SHA1
8a713e1ee7485f7911fcb71dbbfc078d3419799b
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SHA256
5dc975b944afea6185e108a1e3e1f8629c8a70d3871b44647e0457f13e962380
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SHA512
13d2909e65673b4c782e84af132d7dc83227e965b934358ca16d344b68849f8a492ee36a6ab248f09246b03afbdbf2e7572c342b40d41a520300ea2db71ec8cb
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SSDEEP
6144:uVtV0QPQCnSQsTEWYChnUnPJuHC3vcWY:ubVQk1wnGACvc
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 1420 uzxqm.exe -
Executes dropped EXE 2 IoCs
pid Process 1420 uzxqm.exe 2808 fkehdnsin.exe -
Loads dropped DLL 7 IoCs
pid Process 1076 cmd.exe 1076 cmd.exe 1420 uzxqm.exe 2808 fkehdnsin.exe 2808 fkehdnsin.exe 2808 fkehdnsin.exe 2808 fkehdnsin.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-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\Vicity = "c:\\Program Files\\vrzoz\\fkehdnsin.exe \"c:\\Program Files\\vrzoz\\fkehdnsin.dll\",Group" fkehdnsin.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) \??\l: fkehdnsin.exe File opened (read-only) \??\m: fkehdnsin.exe File opened (read-only) \??\o: fkehdnsin.exe File opened (read-only) \??\r: fkehdnsin.exe File opened (read-only) \??\t: fkehdnsin.exe File opened (read-only) \??\u: fkehdnsin.exe File opened (read-only) \??\b: fkehdnsin.exe File opened (read-only) \??\i: fkehdnsin.exe File opened (read-only) \??\x: fkehdnsin.exe File opened (read-only) \??\k: fkehdnsin.exe File opened (read-only) \??\p: fkehdnsin.exe File opened (read-only) \??\s: fkehdnsin.exe File opened (read-only) \??\v: fkehdnsin.exe File opened (read-only) \??\y: fkehdnsin.exe File opened (read-only) \??\z: fkehdnsin.exe File opened (read-only) \??\a: fkehdnsin.exe File opened (read-only) \??\h: fkehdnsin.exe File opened (read-only) \??\g: fkehdnsin.exe File opened (read-only) \??\q: fkehdnsin.exe File opened (read-only) \??\n: fkehdnsin.exe File opened (read-only) \??\w: fkehdnsin.exe File opened (read-only) \??\e: fkehdnsin.exe File opened (read-only) \??\j: fkehdnsin.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 fkehdnsin.exe -
Drops file in Program Files directory 4 IoCs
description ioc Process File opened for modification \??\c:\Program Files\vrzoz uzxqm.exe File created \??\c:\Program Files\vrzoz\fkehdnsin.dll uzxqm.exe File created \??\c:\Program Files\vrzoz\fkehdnsin.exe uzxqm.exe File opened for modification \??\c:\Program Files\vrzoz\fkehdnsin.exe uzxqm.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 fkehdnsin.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 fkehdnsin.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2224 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2808 fkehdnsin.exe 2808 fkehdnsin.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2808 fkehdnsin.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2380 4bd87d24066d91830ef74d3aa71a2630_NEAS.exe 1420 uzxqm.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 2380 wrote to memory of 1076 2380 4bd87d24066d91830ef74d3aa71a2630_NEAS.exe 28 PID 2380 wrote to memory of 1076 2380 4bd87d24066d91830ef74d3aa71a2630_NEAS.exe 28 PID 2380 wrote to memory of 1076 2380 4bd87d24066d91830ef74d3aa71a2630_NEAS.exe 28 PID 2380 wrote to memory of 1076 2380 4bd87d24066d91830ef74d3aa71a2630_NEAS.exe 28 PID 1076 wrote to memory of 2224 1076 cmd.exe 30 PID 1076 wrote to memory of 2224 1076 cmd.exe 30 PID 1076 wrote to memory of 2224 1076 cmd.exe 30 PID 1076 wrote to memory of 2224 1076 cmd.exe 30 PID 1076 wrote to memory of 1420 1076 cmd.exe 31 PID 1076 wrote to memory of 1420 1076 cmd.exe 31 PID 1076 wrote to memory of 1420 1076 cmd.exe 31 PID 1076 wrote to memory of 1420 1076 cmd.exe 31 PID 1420 wrote to memory of 2808 1420 uzxqm.exe 32 PID 1420 wrote to memory of 2808 1420 uzxqm.exe 32 PID 1420 wrote to memory of 2808 1420 uzxqm.exe 32 PID 1420 wrote to memory of 2808 1420 uzxqm.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\4bd87d24066d91830ef74d3aa71a2630_NEAS.exe"C:\Users\Admin\AppData\Local\Temp\4bd87d24066d91830ef74d3aa71a2630_NEAS.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2380 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\uzxqm.exe "C:\Users\Admin\AppData\Local\Temp\4bd87d24066d91830ef74d3aa71a2630_NEAS.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1076 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- Runs ping.exe
PID:2224
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C:\Users\Admin\AppData\Local\Temp\uzxqm.exeC:\Users\Admin\AppData\Local\Temp\\uzxqm.exe "C:\Users\Admin\AppData\Local\Temp\4bd87d24066d91830ef74d3aa71a2630_NEAS.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:1420 -
\??\c:\Program Files\vrzoz\fkehdnsin.exe"c:\Program Files\vrzoz\fkehdnsin.exe" "c:\Program Files\vrzoz\fkehdnsin.dll",Group C:\Users\Admin\AppData\Local\Temp\uzxqm.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:2808
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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
148KB
MD578442b2f1caa189413fe121e674827d3
SHA1377fc5d32a26a91565c1330d30401713e8f63333
SHA2566c5698b39d2f1b007edef73bf73d33e01cf1aa5662ad99eaaca3b7b698a5a70c
SHA512b7840d0a757b585ce7dfd99f2f87cb43617b1dbf11315788c98429e0ee5520ed16a6edf2265261efae16e9c3416f553ded65ccd13605fb72a89e180c9fb07ded
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Filesize
43KB
MD551138beea3e2c21ec44d0932c71762a8
SHA18939cf35447b22dd2c6e6f443446acc1bf986d58
SHA2565ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d
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Filesize
211KB
MD58a871167515f7dc340c459381f069f45
SHA186e840873aba1c14f61685e8601250dcf094cd53
SHA25640ee1bf75cb81e7cd2964369b29b01dee2293ea3c8b892258411c1a1ffbfea6f
SHA5127e63719fdff4643f32cea4ffd2b71de49be82871ef96d76bcd6c53ba997272399076292ef7ed6dd4af28a8fd68e1ce22b92ab9c34c75f1f9bf3d469500bd5b75