Analysis
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max time kernel
147s -
max time network
149s -
platform
windows7_x64 -
resource
win7-en-20211014 -
submitted
21-10-2021 11:45
Static task
static1
Behavioral task
behavioral1
Sample
Scan_Documentsfile00384740599HFH4.exe
Resource
win7-en-20211014
Behavioral task
behavioral2
Sample
Scan_Documentsfile00384740599HFH4.exe
Resource
win10-en-20210920
General
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Target
Scan_Documentsfile00384740599HFH4.exe
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Size
847KB
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MD5
5a6335cc3b81ab553bcd2f62be6202ab
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SHA1
bd861aaad2b54b2e62309f6179dcf71095616b9b
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SHA256
0f795e11fe7833c1dbe5c9f2f4aba409fa6acab6e408def8a4543cf6d6a825be
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SHA512
af2da2b5492f5de4e9051ce5565c7d85cd8996ee42c97356e2ac3faa5863bf3e71a89b99a0cd449b32cc7e69a2133c82db9b1f616af98fa844ab1cfb9d31318b
Malware Config
Extracted
remcos
NEW-METAL-HOST
www.mescot-metal.com:16108
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audio_folder
MicRecords
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audio_path
%AppData%
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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install_path
%AppData%
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
notepad
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keylog_path
%AppData%
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mouse_option
false
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mutex
notepad-6GKL40
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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startup_value
Remcos
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take_screenshot_option
false
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take_screenshot_time
5
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take_screenshot_title
notepad;solitaire;
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Scan_Documentsfile00384740599HFH4.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run\Qftuqf = "C:\\Users\\Public\\fqutfQ.url" Scan_Documentsfile00384740599HFH4.exe -
Modifies registry key 1 TTPs 3 IoCs
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Suspicious use of WriteProcessMemory 44 IoCs
Processes:
Scan_Documentsfile00384740599HFH4.execmd.execmd.execmd.exedescription pid process target process PID 1608 wrote to memory of 740 1608 Scan_Documentsfile00384740599HFH4.exe DpiScaling.exe PID 1608 wrote to memory of 740 1608 Scan_Documentsfile00384740599HFH4.exe DpiScaling.exe PID 1608 wrote to memory of 740 1608 Scan_Documentsfile00384740599HFH4.exe DpiScaling.exe PID 1608 wrote to memory of 740 1608 Scan_Documentsfile00384740599HFH4.exe DpiScaling.exe PID 1608 wrote to memory of 740 1608 Scan_Documentsfile00384740599HFH4.exe DpiScaling.exe PID 1608 wrote to memory of 740 1608 Scan_Documentsfile00384740599HFH4.exe DpiScaling.exe PID 1608 wrote to memory of 740 1608 Scan_Documentsfile00384740599HFH4.exe DpiScaling.exe PID 1608 wrote to memory of 740 1608 Scan_Documentsfile00384740599HFH4.exe DpiScaling.exe PID 1608 wrote to memory of 740 1608 Scan_Documentsfile00384740599HFH4.exe DpiScaling.exe PID 1608 wrote to memory of 740 1608 Scan_Documentsfile00384740599HFH4.exe DpiScaling.exe PID 1608 wrote to memory of 740 1608 Scan_Documentsfile00384740599HFH4.exe DpiScaling.exe PID 1608 wrote to memory of 740 1608 Scan_Documentsfile00384740599HFH4.exe DpiScaling.exe PID 1608 wrote to memory of 740 1608 Scan_Documentsfile00384740599HFH4.exe DpiScaling.exe PID 1608 wrote to memory of 740 1608 Scan_Documentsfile00384740599HFH4.exe DpiScaling.exe PID 1608 wrote to memory of 740 1608 Scan_Documentsfile00384740599HFH4.exe DpiScaling.exe PID 1608 wrote to memory of 740 1608 Scan_Documentsfile00384740599HFH4.exe DpiScaling.exe PID 1608 wrote to memory of 1288 1608 Scan_Documentsfile00384740599HFH4.exe cmd.exe PID 1608 wrote to memory of 1288 1608 Scan_Documentsfile00384740599HFH4.exe cmd.exe PID 1608 wrote to memory of 1288 1608 Scan_Documentsfile00384740599HFH4.exe cmd.exe PID 1608 wrote to memory of 1288 1608 Scan_Documentsfile00384740599HFH4.exe cmd.exe PID 1288 wrote to memory of 1944 1288 cmd.exe cmd.exe PID 1288 wrote to memory of 1944 1288 cmd.exe cmd.exe PID 1288 wrote to memory of 1944 1288 cmd.exe cmd.exe PID 1288 wrote to memory of 1944 1288 cmd.exe cmd.exe PID 1944 wrote to memory of 1888 1944 cmd.exe reg.exe PID 1944 wrote to memory of 1888 1944 cmd.exe reg.exe PID 1944 wrote to memory of 1888 1944 cmd.exe reg.exe PID 1944 wrote to memory of 1888 1944 cmd.exe reg.exe PID 1944 wrote to memory of 1756 1944 cmd.exe reg.exe PID 1944 wrote to memory of 1756 1944 cmd.exe reg.exe PID 1944 wrote to memory of 1756 1944 cmd.exe reg.exe PID 1944 wrote to memory of 1756 1944 cmd.exe reg.exe PID 1944 wrote to memory of 1904 1944 cmd.exe schtasks.exe PID 1944 wrote to memory of 1904 1944 cmd.exe schtasks.exe PID 1944 wrote to memory of 1904 1944 cmd.exe schtasks.exe PID 1944 wrote to memory of 1904 1944 cmd.exe schtasks.exe PID 1608 wrote to memory of 360 1608 Scan_Documentsfile00384740599HFH4.exe cmd.exe PID 1608 wrote to memory of 360 1608 Scan_Documentsfile00384740599HFH4.exe cmd.exe PID 1608 wrote to memory of 360 1608 Scan_Documentsfile00384740599HFH4.exe cmd.exe PID 1608 wrote to memory of 360 1608 Scan_Documentsfile00384740599HFH4.exe cmd.exe PID 360 wrote to memory of 1728 360 cmd.exe reg.exe PID 360 wrote to memory of 1728 360 cmd.exe reg.exe PID 360 wrote to memory of 1728 360 cmd.exe reg.exe PID 360 wrote to memory of 1728 360 cmd.exe reg.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Scan_Documentsfile00384740599HFH4.exe"C:\Users\Admin\AppData\Local\Temp\Scan_Documentsfile00384740599HFH4.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\DpiScaling.exeC:\Windows\System32\DpiScaling.exe2⤵
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C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Public\Trast.bat" "2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\reg.exereg delete hkcu\Environment /v windir /f4⤵
- Modifies registry key
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C:\Windows\SysWOW64\reg.exereg add hkcu\Environment /v windir /d "cmd /c start /min C:\Users\Public\KDECO.bat reg delete hkcu\Environment /v windir /f && REM "4⤵
- Modifies registry key
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C:\Windows\SysWOW64\schtasks.exeschtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I4⤵
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C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Public\nest.bat" "2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\reg.exereg delete hkcu\Environment /v windir /f3⤵
- Modifies registry key
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Public\Trast.batMD5
4068c9f69fcd8a171c67f81d4a952a54
SHA14d2536a8c28cdcc17465e20d6693fb9e8e713b36
SHA25624222300c78180b50ed1f8361ba63cb27316ec994c1c9079708a51b4a1a9d810
SHA512a64f9319acc51fffd0491c74dcd9c9084c2783b82f95727e4bfe387a8528c6dcf68f11418e88f1e133d115daf907549c86dd7ad866b2a7938add5225fbb2811d
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C:\Users\Public\UKO.batMD5
eaf8d967454c3bbddbf2e05a421411f8
SHA16170880409b24de75c2dc3d56a506fbff7f6622c
SHA256f35f2658455a2e40f151549a7d6465a836c33fa9109e67623916f889849eac56
SHA512fe5be5c673e99f70c93019d01abb0a29dd2ecf25b2d895190ff551f020c28e7d8f99f65007f440f0f76c5bcac343b2a179a94d190c938ea3b9e1197890a412e9
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C:\Users\Public\nest.batMD5
8ada51400b7915de2124baaf75e3414c
SHA11a7b9db12184ab7fd7fce1c383f9670a00adb081
SHA25645aa3957c29865260a78f03eef18ae9aebdbf7bea751ecc88be4a799f2bb46c7
SHA5129afc138157a4565294ca49942579cdb6f5d8084e56f9354738de62b585f4c0fa3e7f2cbc9541827f2084e3ff36c46eed29b46f5dd2444062ffcd05c599992e68
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memory/360-84-0x0000000000000000-mapping.dmp
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memory/740-76-0x0000000000080000-0x0000000000081000-memory.dmpFilesize
4KB
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memory/740-81-0x00000000002E0000-0x000000000035A000-memory.dmpFilesize
488KB
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memory/740-79-0x0000000000130000-0x0000000000131000-memory.dmpFilesize
4KB
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memory/740-58-0x0000000000080000-0x0000000000081000-memory.dmpFilesize
4KB
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memory/740-80-0x0000000072600000-0x000000007267D000-memory.dmpFilesize
500KB
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memory/740-59-0x0000000000000000-mapping.dmp
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memory/740-69-0x0000000072600000-0x000000007267D000-memory.dmpFilesize
500KB
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memory/740-77-0x0000000000010000-0x0000000000011000-memory.dmpFilesize
4KB
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memory/1288-72-0x0000000000000000-mapping.dmp
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memory/1608-55-0x00000000001B0000-0x00000000001B1000-memory.dmpFilesize
4KB
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memory/1608-57-0x0000000075B71000-0x0000000075B73000-memory.dmpFilesize
8KB
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memory/1608-56-0x00000000001D1000-0x00000000001E5000-memory.dmpFilesize
80KB
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memory/1728-86-0x0000000000000000-mapping.dmp
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memory/1756-82-0x0000000000000000-mapping.dmp
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memory/1888-78-0x0000000000000000-mapping.dmp
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memory/1904-83-0x0000000000000000-mapping.dmp
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memory/1944-74-0x0000000000000000-mapping.dmp