Analysis
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max time kernel
149s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
11-06-2024 13:33
Static task
static1
Behavioral task
behavioral1
Sample
3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exe
Resource
win10v2004-20240426-en
General
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Target
3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exe
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Size
407KB
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MD5
c4a1fb9ad37a19f01a4736ff89bf0043
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SHA1
0e8cee769e085598da36bd734dff41ec30725122
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SHA256
3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e
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SHA512
b75229d18e4f5ac326fe7f687ca6f3dd1838056ae17126d84e5112b3df7e9ce2702903162e5447f0c0605cbd393bb5e29b865685617e7d1de801358f1900cef7
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SSDEEP
6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4C:gtRfJcNYFNm8UhlZGseC
Malware Config
Signatures
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Blocklisted process makes network request 10 IoCs
Processes:
rundll32.exeflow pid process 3 2240 rundll32.exe 6 2240 rundll32.exe 8 2240 rundll32.exe 9 2240 rundll32.exe 10 2240 rundll32.exe 11 2240 rundll32.exe 12 2240 rundll32.exe 13 2240 rundll32.exe 15 2240 rundll32.exe 16 2240 rundll32.exe -
Deletes itself 1 IoCs
Processes:
shwyw.exepid process 2360 shwyw.exe -
Executes dropped EXE 1 IoCs
Processes:
shwyw.exepid process 2360 shwyw.exe -
Loads dropped DLL 6 IoCs
Processes:
cmd.exerundll32.exepid process 2228 cmd.exe 2228 cmd.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 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-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\Dotx = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\dayxkyh\\qokpi.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) \??\s: rundll32.exe File opened (read-only) \??\y: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\z: rundll32.exe File opened (read-only) \??\t: rundll32.exe File opened (read-only) \??\w: rundll32.exe File opened (read-only) \??\l: rundll32.exe File opened (read-only) \??\o: rundll32.exe File opened (read-only) \??\q: rundll32.exe File opened (read-only) \??\r: rundll32.exe File opened (read-only) \??\u: rundll32.exe File opened (read-only) \??\v: rundll32.exe File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\h: rundll32.exe File opened (read-only) \??\i: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\m: rundll32.exe File opened (read-only) \??\n: rundll32.exe File opened (read-only) \??\p: rundll32.exe File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\g: 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 2240 rundll32.exe -
Drops file in Program Files directory 2 IoCs
Processes:
shwyw.exedescription ioc process File created \??\c:\Program Files\dayxkyh\qokpi.dll shwyw.exe File opened for modification \??\c:\Program Files\dayxkyh shwyw.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 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe 2240 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
rundll32.exedescription pid process Token: SeDebugPrivilege 2240 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exeshwyw.exepid process 2040 3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exe 2360 shwyw.exe -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.execmd.exeshwyw.exedescription pid process target process PID 2040 wrote to memory of 2228 2040 3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exe cmd.exe PID 2040 wrote to memory of 2228 2040 3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exe cmd.exe PID 2040 wrote to memory of 2228 2040 3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exe cmd.exe PID 2040 wrote to memory of 2228 2040 3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exe cmd.exe PID 2228 wrote to memory of 1744 2228 cmd.exe PING.EXE PID 2228 wrote to memory of 1744 2228 cmd.exe PING.EXE PID 2228 wrote to memory of 1744 2228 cmd.exe PING.EXE PID 2228 wrote to memory of 1744 2228 cmd.exe PING.EXE PID 2228 wrote to memory of 2360 2228 cmd.exe shwyw.exe PID 2228 wrote to memory of 2360 2228 cmd.exe shwyw.exe PID 2228 wrote to memory of 2360 2228 cmd.exe shwyw.exe PID 2228 wrote to memory of 2360 2228 cmd.exe shwyw.exe PID 2360 wrote to memory of 2240 2360 shwyw.exe rundll32.exe PID 2360 wrote to memory of 2240 2360 shwyw.exe rundll32.exe PID 2360 wrote to memory of 2240 2360 shwyw.exe rundll32.exe PID 2360 wrote to memory of 2240 2360 shwyw.exe rundll32.exe PID 2360 wrote to memory of 2240 2360 shwyw.exe rundll32.exe PID 2360 wrote to memory of 2240 2360 shwyw.exe rundll32.exe PID 2360 wrote to memory of 2240 2360 shwyw.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exe"C:\Users\Admin\AppData\Local\Temp\3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2040 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\shwyw.exe "C:\Users\Admin\AppData\Local\Temp\3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2228 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- Runs ping.exe
PID:1744 -
C:\Users\Admin\AppData\Local\Temp\shwyw.exeC:\Users\Admin\AppData\Local\Temp\\shwyw.exe "C:\Users\Admin\AppData\Local\Temp\3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exe"3⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2360 -
\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\Program Files\dayxkyh\qokpi.dll",Verify C:\Users\Admin\AppData\Local\Temp\shwyw.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:2240
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
228KB
MD566e5ac7a87a8f08c197be391baaf58bf
SHA10b75233d6cb70d98c0b3b733d75a91cf1ed5bf0e
SHA256ab8a37be4b10b6bffa761d38bd420fb783dba8498842af439dd6265cd96650bb
SHA5120088b7047f5645ca52d2e66aa923df4f9a4f429fe6e693c3f3faa59a74bd9f612722689190fd63d9496665d8ce89c5bd89e2456667b8d434e50b4138ce9c50a1
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Filesize
407KB
MD5cff7ac00ab3dd2f136518f0cd799d2ab
SHA16727be40cab07c15abdd868cf64a87e25923005c
SHA256b55b5c2d8a68d036e5342a543bcc3d9631bc97dd50be3178a2607c013e95667a
SHA5128863bb6831edcda3e835240fddefa857c9e8bcc3104e2e2114458d64c491908a20afe6a990b9cbebbfcf5e137195554dcd2306062f3950ca16aa2ca615ad3cfd