Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
05-04-2024 01:57
Static task
static1
Behavioral task
behavioral1
Sample
f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe
Resource
win10v2004-20240226-en
General
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Target
f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe
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Size
1.6MB
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MD5
eac95a52ac634d3ea75387201a2c749c
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SHA1
e808ef56d1b382b1e01e16af299a548cb038f52c
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SHA256
f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63
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SHA512
6ae5883a1cb8aaa42abc0c8bbfeba2715086ec39ad2028937600b2c925b3093070a72531e4e5abf2d4dafb00bcbab8c2fd5f97aae590dd87645befc27701d346
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SSDEEP
49152:ay6imwGhfj4GBT2z95Zw/L+gwnzFnwyuPTh:azimw4f8iSuD+g
Malware Config
Extracted
remcos
RemoteHost
127.0.0.1:45671
127.0.0.1:55677
192.3.101.8:55677
192.3.101.8:45671
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audio_folder
MicRecords
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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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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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mouse_option
false
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mutex
Rmc-2P1XPK
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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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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
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ModiLoader Second Stage 1 IoCs
Processes:
resource yara_rule behavioral2/memory/4500-2-0x0000000002AD0000-0x0000000003AD0000-memory.dmp modiloader_stage2 -
Executes dropped EXE 1 IoCs
Processes:
1416128.exepid Process 3368 1416128.exe -
Loads dropped DLL 1 IoCs
Processes:
1416128.exepid Process 3368 1416128.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Dkesuvii = "C:\\Users\\Public\\Dkesuvii.url" f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe -
Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 20 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid Process 3564 powershell.exe 3564 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid Process Token: SeDebugPrivilege 3564 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exepid Process 4500 f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.execmd.exe1416128.execmd.execmd.exedescription pid Process procid_target PID 4500 wrote to memory of 4528 4500 f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe 97 PID 4500 wrote to memory of 4528 4500 f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe 97 PID 4500 wrote to memory of 4528 4500 f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe 97 PID 4500 wrote to memory of 868 4500 f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe 98 PID 4500 wrote to memory of 868 4500 f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe 98 PID 4500 wrote to memory of 868 4500 f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe 98 PID 4500 wrote to memory of 3492 4500 f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe 101 PID 4500 wrote to memory of 3492 4500 f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe 101 PID 4500 wrote to memory of 3492 4500 f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe 101 PID 3492 wrote to memory of 3368 3492 cmd.exe 103 PID 3492 wrote to memory of 3368 3492 cmd.exe 103 PID 3368 wrote to memory of 4896 3368 1416128.exe 104 PID 3368 wrote to memory of 4896 3368 1416128.exe 104 PID 4896 wrote to memory of 1936 4896 cmd.exe 106 PID 4896 wrote to memory of 1936 4896 cmd.exe 106 PID 1936 wrote to memory of 3564 1936 cmd.exe 108 PID 1936 wrote to memory of 3564 1936 cmd.exe 108 PID 4500 wrote to memory of 4856 4500 f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe 109 PID 4500 wrote to memory of 4856 4500 f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe 109 PID 4500 wrote to memory of 4856 4500 f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe 109
Processes
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C:\Users\Admin\AppData\Local\Temp\f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe"C:\Users\Admin\AppData\Local\Temp\f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4500 -
C:\Windows\SysWOW64\cmd.execmd /c mkdir "\\?\C:\Windows "2⤵PID:4528
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C:\Windows\SysWOW64\cmd.execmd /c mkdir "\\?\C:\Windows \System32"2⤵PID:868
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C:\Windows\SysWOW64\cmd.execmd /c "C:\Windows \System32\1416128.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3492 -
C:\Windows \System32\1416128.exe"C:\Windows \System32\1416128.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3368 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""4⤵
- Suspicious use of WriteProcessMemory
PID:4896 -
C:\Windows\system32\cmd.execmd /c powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"5⤵
- Suspicious use of WriteProcessMemory
PID:1936 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"6⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3564
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C:\Windows\SysWOW64\extrac32.exeC:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe C:\\Users\\Public\\Libraries\\Dkesuvii.PIF2⤵PID:4856
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
144B
MD5f16d1905a33766b537daef7d741ba23f
SHA1e6fef0673ca9d856990ee9f3e1d8841e73138aed
SHA256c479f8851233bd9542da41a88c8eb9bb3e9b4544cf52031871548006eab1c932
SHA512a63b3be5606bd53b343f25e05028bee79b25c2a5a10d295e5ad72e6602dd309bcbf19b976a9fb2428eaea2e23316509c6762bd148add5aa12ecc60a682f7f2c3
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
128KB
MD5231ce1e1d7d98b44371ffff407d68b59
SHA125510d0f6353dbf0c9f72fc880de7585e34b28ff
SHA25630951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
SHA512520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612
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Filesize
112KB
MD58541304aadba4ae8620bb2699f6e0437
SHA1e0b28a6ecd32d3789433217364c1006de9892df8
SHA25650573c81e5773c13a5411e8446d7fb17956865675782239818f7affd40a2fecb
SHA512c18b1233c138229705242e1cdc00970e45e414d8da9c643b1196ec9de261ae18076e22bed6fcc48c07d1f0e851469db9147f083f3c3c76a26b75994419392455
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Filesize
11KB
MD5c545650595b479c81ad6b9d8882aae39
SHA17a98aa2e6eee23b3c1bba876955d525bc618b3f0
SHA256a3a80983cb33159f0455fa0135789402558baa1460db94d0071318512b8cb5f9
SHA51285ac596a7da9072a28c4178e4fdedc98f1b49c8e3fe5612cfe464833297b13f65d2dc59b52d7fc9970cff8f98d954111229aec0ed9dded454e03b0cf4ebb6ff3