Analysis
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max time kernel
143s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
07/05/2024, 03:14
Static task
static1
Behavioral task
behavioral1
Sample
589868fd7df39cf040cf813672452720_NEAS.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
589868fd7df39cf040cf813672452720_NEAS.exe
Resource
win10v2004-20240419-en
General
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Target
589868fd7df39cf040cf813672452720_NEAS.exe
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Size
256KB
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MD5
589868fd7df39cf040cf813672452720
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SHA1
b9b0390d507256476cb0b6a4d409d74f09981da0
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SHA256
87cd0c1f30ca3079911594ce5c5f5c527c3adbdcd1d8d2d7187fa1f9884f0a25
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SHA512
ae287cd5d0ba21f745df28b7446f24fc58960f9ec4809148b749b9fc81809c08214aa167f49bd58b44078b1b1ec58a0de2ea199216cfe2a818f0835c073fabab
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SSDEEP
6144:iyHJ4wTB5Ia9p+S0dSpTU+h/zquE1j57Lu6Bwc772t:ig4wTvoS05kzNEj7Lu6nu
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 2912 hfuts.exe -
Executes dropped EXE 2 IoCs
pid Process 2912 hfuts.exe 4520 fje.exe -
Loads dropped DLL 1 IoCs
pid Process 4520 fje.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-1-5-21-2818691465-3043947619-2475182763-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\wtyxl\\fje.exe \"c:\\Program Files\\wtyxl\\fjehz.dll\",Compliance" fje.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) \??\n: fje.exe File opened (read-only) \??\s: fje.exe File opened (read-only) \??\u: fje.exe File opened (read-only) \??\y: fje.exe File opened (read-only) \??\h: fje.exe File opened (read-only) \??\i: fje.exe File opened (read-only) \??\k: fje.exe File opened (read-only) \??\l: fje.exe File opened (read-only) \??\b: fje.exe File opened (read-only) \??\g: fje.exe File opened (read-only) \??\x: fje.exe File opened (read-only) \??\w: fje.exe File opened (read-only) \??\a: fje.exe File opened (read-only) \??\e: fje.exe File opened (read-only) \??\j: fje.exe File opened (read-only) \??\q: fje.exe File opened (read-only) \??\t: fje.exe File opened (read-only) \??\v: fje.exe File opened (read-only) \??\z: fje.exe File opened (read-only) \??\m: fje.exe File opened (read-only) \??\o: fje.exe File opened (read-only) \??\p: fje.exe File opened (read-only) \??\r: fje.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 fje.exe -
Drops file in Program Files directory 4 IoCs
description ioc Process File opened for modification \??\c:\Program Files\wtyxl\fje.exe hfuts.exe File opened for modification \??\c:\Program Files\wtyxl hfuts.exe File created \??\c:\Program Files\wtyxl\fjehz.dll hfuts.exe File created \??\c:\Program Files\wtyxl\fje.exe hfuts.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 opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 fje.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString fje.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 732 PING.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4520 fje.exe 4520 fje.exe 4520 fje.exe 4520 fje.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4520 fje.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1980 589868fd7df39cf040cf813672452720_NEAS.exe 2912 hfuts.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1980 wrote to memory of 3260 1980 589868fd7df39cf040cf813672452720_NEAS.exe 85 PID 1980 wrote to memory of 3260 1980 589868fd7df39cf040cf813672452720_NEAS.exe 85 PID 1980 wrote to memory of 3260 1980 589868fd7df39cf040cf813672452720_NEAS.exe 85 PID 3260 wrote to memory of 732 3260 cmd.exe 88 PID 3260 wrote to memory of 732 3260 cmd.exe 88 PID 3260 wrote to memory of 732 3260 cmd.exe 88 PID 3260 wrote to memory of 2912 3260 cmd.exe 90 PID 3260 wrote to memory of 2912 3260 cmd.exe 90 PID 3260 wrote to memory of 2912 3260 cmd.exe 90 PID 2912 wrote to memory of 4520 2912 hfuts.exe 92 PID 2912 wrote to memory of 4520 2912 hfuts.exe 92 PID 2912 wrote to memory of 4520 2912 hfuts.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe"C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1980 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\hfuts.exe "C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3260 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- Runs ping.exe
PID:732
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C:\Users\Admin\AppData\Local\Temp\hfuts.exeC:\Users\Admin\AppData\Local\Temp\\hfuts.exe "C:\Users\Admin\AppData\Local\Temp\589868fd7df39cf040cf813672452720_NEAS.exe"3⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2912 -
\??\c:\Program Files\wtyxl\fje.exe"c:\Program Files\wtyxl\fje.exe" "c:\Program Files\wtyxl\fjehz.dll",Compliance C:\Users\Admin\AppData\Local\Temp\hfuts.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:4520
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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
60KB
MD5889b99c52a60dd49227c5e485a016679
SHA18fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA2566cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
SHA51208933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
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Filesize
256KB
MD5cd5c092d3a7ec094712a25a04a1272ba
SHA1b075f3bc65ebc1d4b2d2d72e88df01d4d7cf1a35
SHA2569b607f1da62559ea147ed88b8304aabffe34e43ae85183d44c578c37f29a2df3
SHA512fc8d8ed28ac9f0729c2361e6f0d8ac0f95eed8ff0126f701347cc525cdb9b8a026d3a835cddc592a1b015b83a30b3a5a4090330111399bdf2dfa7df18e056d4c
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Filesize
179KB
MD55701cccdce33aed113fbe258f6681eb0
SHA1081f73a990a4a4c7c6624dbcc9884a488c4142c2
SHA2561f5de6132f84337e0bfdd1c080fea9cda66e4effc082a83b8734a817279440fe
SHA5124cc4fe94ec98ca6de0b27b1490f3414f3b27d5c561207df23b0c9e85836af23f32dbb33b8b2c612fe06109edf86655877347541f7d48a70488f7e7fadb2fb5e5