Analysis
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max time kernel
153s -
max time network
184s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
21-01-2022 23:33
Static task
static1
Behavioral task
behavioral1
Sample
dcdc99a71af2d3db2cb3004dd3e91a4908d71a876179b447ed116742cff8ba3b.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
dcdc99a71af2d3db2cb3004dd3e91a4908d71a876179b447ed116742cff8ba3b.exe
Resource
win10-en-20211208
General
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Target
dcdc99a71af2d3db2cb3004dd3e91a4908d71a876179b447ed116742cff8ba3b.exe
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Size
721KB
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MD5
ed8504a7a6f3377d677b97526a376e81
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SHA1
86a0376de9b9ee12f86ed24091bc151ebae7d147
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SHA256
dcdc99a71af2d3db2cb3004dd3e91a4908d71a876179b447ed116742cff8ba3b
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SHA512
624bd34a11ebc86976bfd36385c79cf1730f81ce16f1c4fbf8076e226056219deb132e629297729b415c3721114425ae12f3da8ff34a1e60827d0588e7b74397
Malware Config
Extracted
remcos
2.5.0 Pro
TREINTAYOCHO
treintayochorem.duckdns.org:1010
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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-H7ZOSI
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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
wikipedia;solitaire;
Signatures
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Blocklisted process makes network request 4 IoCs
Processes:
cmd.exeflow pid process 3 1648 cmd.exe 4 1648 cmd.exe 9 1648 cmd.exe 11 1648 cmd.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 856 rundll32.exe -
Drops file in Windows directory 1 IoCs
Processes:
cmd.exedescription ioc process File created C:\Windows\Tasks\msfeedssync.job cmd.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
rundll32.exepid process 856 rundll32.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
rundll32.exepid process 856 rundll32.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
cmd.exepid process 1648 cmd.exe -
Suspicious use of WriteProcessMemory 52 IoCs
Processes:
dcdc99a71af2d3db2cb3004dd3e91a4908d71a876179b447ed116742cff8ba3b.exerundll32.exedescription pid process target process PID 1668 wrote to memory of 856 1668 dcdc99a71af2d3db2cb3004dd3e91a4908d71a876179b447ed116742cff8ba3b.exe rundll32.exe PID 1668 wrote to memory of 856 1668 dcdc99a71af2d3db2cb3004dd3e91a4908d71a876179b447ed116742cff8ba3b.exe rundll32.exe PID 1668 wrote to memory of 856 1668 dcdc99a71af2d3db2cb3004dd3e91a4908d71a876179b447ed116742cff8ba3b.exe rundll32.exe PID 1668 wrote to memory of 856 1668 dcdc99a71af2d3db2cb3004dd3e91a4908d71a876179b447ed116742cff8ba3b.exe rundll32.exe PID 1668 wrote to memory of 856 1668 dcdc99a71af2d3db2cb3004dd3e91a4908d71a876179b447ed116742cff8ba3b.exe rundll32.exe PID 1668 wrote to memory of 856 1668 dcdc99a71af2d3db2cb3004dd3e91a4908d71a876179b447ed116742cff8ba3b.exe rundll32.exe PID 1668 wrote to memory of 856 1668 dcdc99a71af2d3db2cb3004dd3e91a4908d71a876179b447ed116742cff8ba3b.exe rundll32.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe PID 856 wrote to memory of 1648 856 rundll32.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\dcdc99a71af2d3db2cb3004dd3e91a4908d71a876179b447ed116742cff8ba3b.exe"C:\Users\Admin\AppData\Local\Temp\dcdc99a71af2d3db2cb3004dd3e91a4908d71a876179b447ed116742cff8ba3b.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe PartiShikari,Hurley2⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
- Blocklisted process makes network request
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\CapercaillieMD5
b9239ef2ea3c8a042259de2001a1b447
SHA13f599a1247c4c58ac20674cfba24e1383cee9072
SHA256f6506d4b516addd8550689bb0d55ecf0731f3740e76c3e27c714e877f941da32
SHA5122d3026f0c5beea03cf3ce3bb6f07c8e9084d8b149df2ed954cd4b10583305571a57bc48a4aa1f32ec54db12fde81c752ffc758cec686bbfea92c99648ced473e
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C:\Users\Admin\AppData\Local\Temp\PartiShikari.DLLMD5
8aec2b9bf7b0156601b5738445c89afb
SHA172a3cf230083d1b882181bda3320ee5592a058d2
SHA256e288f1292df61e692e2ba9f2a163bcaa620403b30fad40155c37edc9c9e53f76
SHA512a92939475c2d0ac2331428d42628fc035ef98b3bb7ff9c154d99b441a38e11419de74fea0b07765de695dc02f0610ac9aba2ce7f82d500703b87f5f1183fe9ba
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\Users\Admin\AppData\Local\Temp\PartiShikari.dllMD5
8aec2b9bf7b0156601b5738445c89afb
SHA172a3cf230083d1b882181bda3320ee5592a058d2
SHA256e288f1292df61e692e2ba9f2a163bcaa620403b30fad40155c37edc9c9e53f76
SHA512a92939475c2d0ac2331428d42628fc035ef98b3bb7ff9c154d99b441a38e11419de74fea0b07765de695dc02f0610ac9aba2ce7f82d500703b87f5f1183fe9ba
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memory/856-60-0x00000000000F0000-0x00000000000F2000-memory.dmpFilesize
8KB
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memory/856-61-0x0000000075760000-0x0000000075795000-memory.dmpFilesize
212KB
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memory/856-62-0x0000000077860000-0x0000000077A09000-memory.dmpFilesize
1.7MB
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memory/1648-64-0x0000000077860000-0x0000000077A09000-memory.dmpFilesize
1.7MB
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memory/1648-66-0x0000000000090000-0x0000000000096000-memory.dmpFilesize
24KB
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memory/1648-70-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/1668-55-0x0000000076141000-0x0000000076143000-memory.dmpFilesize
8KB