84c628adba7d09e7621579a147e6d2daa189dd4f47a86e6095d05cd696fcd570

General

Target

Bandicam/bdcam_setup.bat
Size

61KB
MD5

04c9207727dc5474f2deb587e591881b
SHA1

c7217d5a6992ed4b258cfe4e0689b15e37077d0f
SHA256

b9fec10884cff054689605514294b72870bebf085eebedfd8555123127688272
SHA512

44827e60c68a8dc572f9fe1e35a1a32cd56a5fbcfd8d85344c309daf60ef233995a2353e776e648706430f60ac4eeddb53a40cd13ad53f28e4ac23d6d0df87cd
SSDEEP

1536:7Ysjgm7LaXhXOXn3IXsz/oeQWewbUZHDjY9:7EXheZz/oel2ZHHc

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4784	bdcam_activate.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
912	bdcam.exe
912	bdcam.exe
1980	bdcam.exe
1980	bdcam.exe

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1276817940-128734381-631578427-1000_Classes\BANDICAM.bfix\Shell\Open\Command	bdcam.exe
Key created	\REGISTRY\USER\S-1-5-21-1276817940-128734381-631578427-1000_Classes\BANDICAM.bfix\Shell	bdcam.exe
Key created	\REGISTRY\USER\S-1-5-21-1276817940-128734381-631578427-1000_Classes\BANDICAM.bfix\Shell\Open	bdcam.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1276817940-128734381-631578427-1000_Classes\BANDICAM.bfix\Shell\Open\Command\ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Bandicam\\bdfix.exe\"\"%1\""	bdcam.exe
Key created	\REGISTRY\USER\S-1-5-21-1276817940-128734381-631578427-1000_Classes\.bfix	bdcam.exe
Key created	\REGISTRY\USER\S-1-5-21-1276817940-128734381-631578427-1000_Classes\BANDICAM.bfix	bdcam.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1276817940-128734381-631578427-1000_Classes\BANDICAM.bfix\ = "BandiFix Recovery File"	bdcam.exe
Key created	\REGISTRY\USER\S-1-5-21-1276817940-128734381-631578427-1000_Classes\BANDICAM.bfix\DefaultIcon	bdcam.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1276817940-128734381-631578427-1000_Classes\BANDICAM.bfix\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Bandicam\\bdfix.exe"	bdcam.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1276817940-128734381-631578427-1000_Classes\.bfix\ = "BANDICAM.bfix"	bdcam.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
912	bdcam.exe
912	bdcam.exe
1980	bdcam.exe
1980	bdcam.exe
1980	bdcam.exe
1980	bdcam.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: 33	4544	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	4544	AUDIODG.EXE
Token: 33	1980	bdcam.exe
Token: SeIncBasePriorityPrivilege	1980	bdcam.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1980	bdcam.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1980	bdcam.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
912	bdcam.exe
1980	bdcam.exe
1980	bdcam.exe
1980	bdcam.exe
1980	bdcam.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3724 wrote to memory of 4792	3724	cmd.exe	81
PID 3724 wrote to memory of 4792	3724	cmd.exe	81
PID 4792 wrote to memory of 3756	4792	net.exe	82
PID 4792 wrote to memory of 3756	4792	net.exe	82
PID 3724 wrote to memory of 912	3724	cmd.exe	83
PID 3724 wrote to memory of 912	3724	cmd.exe	83
PID 912 wrote to memory of 4992	912	bdcam.exe	84
PID 912 wrote to memory of 4992	912	bdcam.exe	84
PID 912 wrote to memory of 5004	912	bdcam.exe	85
PID 912 wrote to memory of 5004	912	bdcam.exe	85
PID 912 wrote to memory of 5004	912	bdcam.exe	85
PID 3724 wrote to memory of 2336	3724	cmd.exe	86
PID 3724 wrote to memory of 2336	3724	cmd.exe	86
PID 3724 wrote to memory of 4784	3724	cmd.exe	87
PID 3724 wrote to memory of 4784	3724	cmd.exe	87
PID 3724 wrote to memory of 4784	3724	cmd.exe	87
PID 3724 wrote to memory of 728	3724	cmd.exe	88
PID 3724 wrote to memory of 728	3724	cmd.exe	88
PID 3724 wrote to memory of 1980	3724	cmd.exe	89
PID 3724 wrote to memory of 1980	3724	cmd.exe	89

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Bandicam\bdcam_setup.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:3724
- C:\Windows\system32\net.exe
  NET SESSION
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4792
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 SESSION
    3⤵
    PID:3756
- C:\Users\Admin\AppData\Local\Temp\Bandicam\bdcam.exe
  "bdcam.exe" /install
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:912
- - C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Bandicam\bdcamvk64.dll",RegDll
    3⤵
    PID:4992
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\SysWOW64\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Bandicam\bdcamvk32.dll",RegDll
    3⤵
    PID:5004
- C:\Windows\system32\certutil.exe
  certutil -decode C:\Users\Admin\AppData\Local\Temp\Bandicam\bdcam_setup.bat "C:\Users\Admin\AppData\Local\Temp\bdcam_activate.exe"
  2⤵
  PID:2336
- C:\Users\Admin\AppData\Local\Temp\bdcam_activate.exe
  "C:\Users\Admin\AppData\Local\Temp\bdcam_activate.exe" /inst
  2⤵
  - Executes dropped EXE
  PID:4784
- C:\Windows\system32\reg.exe
  reg copy "HKLM\SOFTWARE\WOW6432Node\BANDISOFT\BANDICAM\OPTION" "HKCU\SOFTWARE\BANDISOFT\BANDICAM\OPTION" /s /f
  2⤵
  PID:728
- C:\Users\Admin\AppData\Local\Temp\Bandicam\bdcam.exe
  "bdcam.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:1980

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x00000000000004E4 0x00000000000004D4
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\bdcam_activate.exe

Filesize
45KB

MD5
360ec335cff3d6f6242b62f96747c6c1

SHA1
60439d9b7689b994b1691db6f2d795697eeafa48

SHA256
20d7107252aac741c68b8a03cc20520430e93acdbe3434ee428d162a85f93a94

SHA512
ee9aa23d4e7600fe2d57350a483125d6e22ee73718d362d061a20b0b096bc874f864328d8be38b5b20768ecca77ea36f8ea5f7a25ad11fca3ba862fe736eeef0

Download Submit
memory/912-0-0x00007FF68D2EB000-0x00007FF68D728000-memory.dmp

Filesize
4.2MB

Download
memory/912-1-0x00007FFC2FA90000-0x00007FFC2FA92000-memory.dmp

Filesize
8KB

Download
memory/912-2-0x00007FF68CD30000-0x00007FF68DA92000-memory.dmp

Filesize
13.4MB

Download
memory/912-3-0x00007FF68D2EB000-0x00007FF68D728000-memory.dmp

Filesize
4.2MB

Download
memory/1980-10-0x00007FF68CD30000-0x00007FF68DA92000-memory.dmp

Filesize
13.4MB

Download
memory/4784-8-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download

Analysis

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