Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10_x64 -
resource
win10-en -
submitted
15-09-2021 16:22
Static task
static1
Behavioral task
behavioral1
Sample
ORDEN 5676-SEPT1521,pdf.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
ORDEN 5676-SEPT1521,pdf.exe
Resource
win10-en
General
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Target
ORDEN 5676-SEPT1521,pdf.exe
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Size
792KB
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MD5
2749086603745acbf50b07bf0782317f
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SHA1
6035e885fc969675b5d6d597a8d340d72a04f718
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SHA256
4b989ceef83817dd4a14c9322a2b127a14f98d85dafb99625fe3483cd58dc6dc
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SHA512
586e93b8a862057bdf7ebaa1ae81faa6abe62f7086ae2054eb49456349e6444a387fc3274560db7342b02bc0a2c2bbf549cd6d79ee1a79fccefb2eb885d8692e
Malware Config
Extracted
remcos
3.1.5 Pro
OK MAN
zion6.ddns.net:2815
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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
remcos
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keylog_path
%AppData%
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mouse_option
false
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mutex
Remcos-MPN2RF
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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:
ORDEN 5676-SEPT1521,pdf.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run\Tbnaalkn = "C:\\Users\\Public\\Libraries\\nklaanbT.url" ORDEN 5676-SEPT1521,pdf.exe -
Modifies registry key 1 TTPs 3 IoCs
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Suspicious use of WriteProcessMemory 36 IoCs
Processes:
ORDEN 5676-SEPT1521,pdf.execmd.execmd.execmd.exedescription pid process target process PID 3952 wrote to memory of 3612 3952 ORDEN 5676-SEPT1521,pdf.exe dialer.exe PID 3952 wrote to memory of 3612 3952 ORDEN 5676-SEPT1521,pdf.exe dialer.exe PID 3952 wrote to memory of 3612 3952 ORDEN 5676-SEPT1521,pdf.exe dialer.exe PID 3952 wrote to memory of 3612 3952 ORDEN 5676-SEPT1521,pdf.exe dialer.exe PID 3952 wrote to memory of 3612 3952 ORDEN 5676-SEPT1521,pdf.exe dialer.exe PID 3952 wrote to memory of 3612 3952 ORDEN 5676-SEPT1521,pdf.exe dialer.exe PID 3952 wrote to memory of 3612 3952 ORDEN 5676-SEPT1521,pdf.exe dialer.exe PID 3952 wrote to memory of 3612 3952 ORDEN 5676-SEPT1521,pdf.exe dialer.exe PID 3952 wrote to memory of 3612 3952 ORDEN 5676-SEPT1521,pdf.exe dialer.exe PID 3952 wrote to memory of 3612 3952 ORDEN 5676-SEPT1521,pdf.exe dialer.exe PID 3952 wrote to memory of 3612 3952 ORDEN 5676-SEPT1521,pdf.exe dialer.exe PID 3952 wrote to memory of 3612 3952 ORDEN 5676-SEPT1521,pdf.exe dialer.exe PID 3952 wrote to memory of 3612 3952 ORDEN 5676-SEPT1521,pdf.exe dialer.exe PID 3952 wrote to memory of 3612 3952 ORDEN 5676-SEPT1521,pdf.exe dialer.exe PID 3952 wrote to memory of 3612 3952 ORDEN 5676-SEPT1521,pdf.exe dialer.exe PID 3952 wrote to memory of 3908 3952 ORDEN 5676-SEPT1521,pdf.exe cmd.exe PID 3952 wrote to memory of 3908 3952 ORDEN 5676-SEPT1521,pdf.exe cmd.exe PID 3952 wrote to memory of 3908 3952 ORDEN 5676-SEPT1521,pdf.exe cmd.exe PID 3908 wrote to memory of 2876 3908 cmd.exe cmd.exe PID 3908 wrote to memory of 2876 3908 cmd.exe cmd.exe PID 3908 wrote to memory of 2876 3908 cmd.exe cmd.exe PID 2876 wrote to memory of 3560 2876 cmd.exe reg.exe PID 2876 wrote to memory of 3560 2876 cmd.exe reg.exe PID 2876 wrote to memory of 3560 2876 cmd.exe reg.exe PID 2876 wrote to memory of 764 2876 cmd.exe reg.exe PID 2876 wrote to memory of 764 2876 cmd.exe reg.exe PID 2876 wrote to memory of 764 2876 cmd.exe reg.exe PID 2876 wrote to memory of 3820 2876 cmd.exe schtasks.exe PID 2876 wrote to memory of 3820 2876 cmd.exe schtasks.exe PID 2876 wrote to memory of 3820 2876 cmd.exe schtasks.exe PID 3952 wrote to memory of 3960 3952 ORDEN 5676-SEPT1521,pdf.exe cmd.exe PID 3952 wrote to memory of 3960 3952 ORDEN 5676-SEPT1521,pdf.exe cmd.exe PID 3952 wrote to memory of 3960 3952 ORDEN 5676-SEPT1521,pdf.exe cmd.exe PID 3960 wrote to memory of 428 3960 cmd.exe reg.exe PID 3960 wrote to memory of 428 3960 cmd.exe reg.exe PID 3960 wrote to memory of 428 3960 cmd.exe reg.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ORDEN 5676-SEPT1521,pdf.exe"C:\Users\Admin\AppData\Local\Temp\ORDEN 5676-SEPT1521,pdf.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\dialer.exeC:\Windows\System32\dialer.exe2⤵
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /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.exeC:\Windows\system32\cmd.exe /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/428-134-0x0000000000000000-mapping.dmp
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memory/764-125-0x0000000000000000-mapping.dmp
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memory/2876-122-0x0000000000000000-mapping.dmp
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memory/3560-124-0x0000000000000000-mapping.dmp
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memory/3612-131-0x0000000000400000-0x0000000000479000-memory.dmpFilesize
484KB
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memory/3612-128-0x0000000000CF0000-0x0000000000CF1000-memory.dmpFilesize
4KB
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memory/3612-127-0x0000000000DE0000-0x0000000000DE1000-memory.dmpFilesize
4KB
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memory/3612-130-0x0000000010590000-0x000000001060C000-memory.dmpFilesize
496KB
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memory/3612-129-0x0000000003070000-0x0000000003071000-memory.dmpFilesize
4KB
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memory/3612-119-0x0000000000000000-mapping.dmp
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memory/3820-126-0x0000000000000000-mapping.dmp
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memory/3908-120-0x0000000000000000-mapping.dmp
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memory/3952-115-0x0000000000770000-0x0000000000771000-memory.dmpFilesize
4KB
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memory/3960-132-0x0000000000000000-mapping.dmp