Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
16/10/2024, 01:35
Static task
static1
Behavioral task
behavioral1
Sample
9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe
Resource
win10v2004-20241007-en
General
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Target
9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe
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Size
94KB
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MD5
235126a6fcdd952ce3adf837e72455b7
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SHA1
05553713fd87ae701ccb8d92b1a07257659eb970
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SHA256
9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab
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SHA512
2e4e3b2482031eec7d345899743541cfca0b5936e7244c10f5352fa8b2b26ae3044a52c916031e666740af972c405adb93f4906368f7e6b4fbc5a0791ec948fe
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SSDEEP
1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlB:eSABNx6vb4RoI4pyjHYLhal01UoPX+h0
Malware Config
Signatures
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Blocklisted process makes network request 3 IoCs
flow pid Process 21 3652 rundll32.exe 22 3652 rundll32.exe 23 3652 rundll32.exe -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x0008000000023cac-8.dat acprotect -
Deletes itself 1 IoCs
pid Process 2060 fytjuhv.exe -
Executes dropped EXE 1 IoCs
pid Process 2060 fytjuhv.exe -
Loads dropped DLL 1 IoCs
pid Process 3652 rundll32.exe -
Reads user/profile data of web browsers 3 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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\cnfde\\jbudw.dll\",DoVirusScan" rundll32.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: rundll32.exe File opened (read-only) \??\n: rundll32.exe File opened (read-only) \??\o: rundll32.exe File opened (read-only) \??\t: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\i: rundll32.exe File opened (read-only) \??\m: rundll32.exe File opened (read-only) \??\r: rundll32.exe File opened (read-only) \??\s: rundll32.exe File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\v: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\y: rundll32.exe File opened (read-only) \??\w: rundll32.exe File opened (read-only) \??\g: rundll32.exe File opened (read-only) \??\h: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\p: rundll32.exe File opened (read-only) \??\q: rundll32.exe File opened (read-only) \??\u: rundll32.exe File opened (read-only) \??\z: rundll32.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 rundll32.exe -
System Location Discovery: System Language Discovery 1 TTPs 5 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 9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language fytjuhv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 3316 cmd.exe 2016 PING.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 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2016 PING.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3652 rundll32.exe 3652 rundll32.exe 3652 rundll32.exe 3652 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3652 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2284 9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe 2060 fytjuhv.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2284 wrote to memory of 3316 2284 9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe 86 PID 2284 wrote to memory of 3316 2284 9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe 86 PID 2284 wrote to memory of 3316 2284 9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe 86 PID 3316 wrote to memory of 2016 3316 cmd.exe 88 PID 3316 wrote to memory of 2016 3316 cmd.exe 88 PID 3316 wrote to memory of 2016 3316 cmd.exe 88 PID 3316 wrote to memory of 2060 3316 cmd.exe 90 PID 3316 wrote to memory of 2060 3316 cmd.exe 90 PID 3316 wrote to memory of 2060 3316 cmd.exe 90 PID 2060 wrote to memory of 3652 2060 fytjuhv.exe 91 PID 2060 wrote to memory of 3652 2060 fytjuhv.exe 91 PID 2060 wrote to memory of 3652 2060 fytjuhv.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe"C:\Users\Admin\AppData\Local\Temp\9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2284 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&c:\fytjuhv.exe "C:\Users\Admin\AppData\Local\Temp\9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3316 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2016
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\??\c:\fytjuhv.exec:\fytjuhv.exe "C:\Users\Admin\AppData\Local\Temp\9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe"3⤵
- Deletes itself
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2060 -
\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\cnfde\jbudw.dll",DoVirusScan c:\fytjuhv.exe4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3652
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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
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
94KB
MD5012b52b30fcba353718a19cba796bb5a
SHA1d99d8c607e00580edf47f327f910ed7b97e5c9e4
SHA25689167f31763ab46812ac0e2a43d7a50c1c5012dcbe77df262c5fe91c43ff85cc
SHA512519d8dd14c835e979b4cf7bda4ce71b67eff974a1f85b3420a3cfe6ab23ca862a2ebcdd1cd5a2697158a6432733ea8f645c408c8fc184a42b7a829528c0696a9
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Filesize
50KB
MD5cbfc06794d16ace6adf42210183fc1b9
SHA174fc68a2af225b0aca954b3684940747511013c5
SHA256b2d21c40c5bfc0f7695945946fa1cdd4eaf2f66a8391ddde6307c5f765fbf525
SHA512181dbe8b63e28a81cb8e0b7240df8745da350e1ab433b157b8b4fd36aa10f0782e807c09563bcffe37cfe64aa1b514b2cc1f179fbcba422d96867179d88e13c9