Analysis
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max time kernel
149s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
25-05-2024 09:35
Static task
static1
Behavioral task
behavioral1
Sample
5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.exe
Resource
win10v2004-20240508-en
General
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Target
5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.exe
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Size
406KB
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MD5
ebb9cc5c0bad553fee6b78d03b650fd1
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SHA1
3c44700777abec03ff83773e14a5e45c6e439394
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SHA256
5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8
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SHA512
e5c73382db010f481bcd2c27030d449ea6ebc1e5c065d4cba9236ba1e7441de4aa3986b15efe64c3af1505cc7ae92cc03a6b367a131f3762f84c9e299e06ba72
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SSDEEP
6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4G:gtRfJcNYFNm8UhlZGseG
Malware Config
Signatures
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Blocklisted process makes network request 8 IoCs
Processes:
rundll32.exeflow pid process 22 3372 rundll32.exe 28 3372 rundll32.exe 29 3372 rundll32.exe 30 3372 rundll32.exe 41 3372 rundll32.exe 42 3372 rundll32.exe 48 3372 rundll32.exe 60 3372 rundll32.exe -
Deletes itself 1 IoCs
Processes:
uviec.exepid process 3160 uviec.exe -
Executes dropped EXE 1 IoCs
Processes:
uviec.exepid process 3160 uviec.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 3372 rundll32.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
Processes:
rundll32.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Dotx = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\bykksnqp\\aotoxn.dll\",Verify" rundll32.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
rundll32.exedescription ioc process File opened (read-only) \??\u: rundll32.exe File opened (read-only) \??\h: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\s: rundll32.exe File opened (read-only) \??\p: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\y: rundll32.exe File opened (read-only) \??\z: rundll32.exe File opened (read-only) \??\g: rundll32.exe File opened (read-only) \??\i: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\n: rundll32.exe File opened (read-only) \??\o: rundll32.exe File opened (read-only) \??\r: rundll32.exe File opened (read-only) \??\t: rundll32.exe File opened (read-only) \??\v: rundll32.exe File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\m: rundll32.exe File opened (read-only) \??\w: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\l: rundll32.exe File opened (read-only) \??\q: 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.
Processes:
rundll32.exedescription ioc process File opened for modification \??\PHYSICALDRIVE0 rundll32.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
rundll32.exepid process 3372 rundll32.exe -
Drops file in Program Files directory 2 IoCs
Processes:
uviec.exedescription ioc process File opened for modification \??\c:\Program Files\bykksnqp uviec.exe File created \??\c:\Program Files\bykksnqp\aotoxn.dll uviec.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
rundll32.exedescription 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
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Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
rundll32.exepid process 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe 3372 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
rundll32.exedescription pid process Token: SeDebugPrivilege 3372 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.exeuviec.exepid process 4432 5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.exe 3160 uviec.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.execmd.exeuviec.exedescription pid process target process PID 4432 wrote to memory of 624 4432 5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.exe cmd.exe PID 4432 wrote to memory of 624 4432 5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.exe cmd.exe PID 4432 wrote to memory of 624 4432 5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.exe cmd.exe PID 624 wrote to memory of 3628 624 cmd.exe PING.EXE PID 624 wrote to memory of 3628 624 cmd.exe PING.EXE PID 624 wrote to memory of 3628 624 cmd.exe PING.EXE PID 624 wrote to memory of 3160 624 cmd.exe uviec.exe PID 624 wrote to memory of 3160 624 cmd.exe uviec.exe PID 624 wrote to memory of 3160 624 cmd.exe uviec.exe PID 3160 wrote to memory of 3372 3160 uviec.exe rundll32.exe PID 3160 wrote to memory of 3372 3160 uviec.exe rundll32.exe PID 3160 wrote to memory of 3372 3160 uviec.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.exe"C:\Users\Admin\AppData\Local\Temp\5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4432 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\uviec.exe "C:\Users\Admin\AppData\Local\Temp\5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:624 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- Runs ping.exe
PID:3628 -
C:\Users\Admin\AppData\Local\Temp\uviec.exeC:\Users\Admin\AppData\Local\Temp\\uviec.exe "C:\Users\Admin\AppData\Local\Temp\5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.exe"3⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3160 -
\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\Program Files\bykksnqp\aotoxn.dll",Verify C:\Users\Admin\AppData\Local\Temp\uviec.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)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3372
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
406KB
MD58ceee9a7b50f1c537f6de2d966d43c10
SHA1dee7cc98af983352589dc03cf4642d54a64730c3
SHA256eb3584eeb76192e8012b1116053f70ad78e7be9d207a5f16b7e794da71e05f0c
SHA5123a4cbead97d49ebd14ffecaf35f749631b3a73f1295eac38b14f538c5db1d1083c0a7c2c366dada7e20ad20fe8a843be6bda7c57b07e8f98eb7e999dd98c8099
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Filesize
228KB
MD5de7377d3e41a9a4b62aac90b34cfc88a
SHA16e9035b3df004151d0df1b9c7ebff082c140c4e1
SHA256ff88e1beb07d67043b70a913d7fe4d713984bc0322a2d36dd1a12606a5b9250f
SHA512b2d862594eedd9bd03c27b0c6d2ccafa36b291564a21f7db8b383874d161e1ca50e4284190de456310bd24ac0133d03f565ed48c54849cd1649f917ae9391813