Analysis
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max time kernel
151s -
max time network
164s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
21-10-2021 10:37
Static task
static1
Behavioral task
behavioral1
Sample
FREWITT Auftragsbestätigung-5309,pdf.exe
Resource
win7-en-20211014
Behavioral task
behavioral2
Sample
FREWITT Auftragsbestätigung-5309,pdf.exe
Resource
win10-en-20210920
General
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Target
FREWITT Auftragsbestätigung-5309,pdf.exe
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Size
973KB
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MD5
2ad5ffbc1c617702149481d5d5129e47
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SHA1
96fae5b9e9f0ab3a98422e2e8c2b4e95c3746976
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SHA256
583dd77ec5f198782e75d7c7286fabb741051c88e32b862dfad56f9b2f46bf0d
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SHA512
746728216bebbdb221109317c99cace0c60892ab1d7a07953782e165cf63be1eeafcca8825ad2a23769dccb2cb538dd541d507a6c9d0602b78a2440ca5212f2a
Malware Config
Extracted
remcos
3.3.0 Pro
ASEDEYGO
ckay4real.hopto.org:7676
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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-1X6NRY
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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:
FREWITT Auftragsbestätigung-5309,pdf.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\Jqwmfc = "C:\\Users\\Public\\cfmwqJ.url" FREWITT Auftragsbestätigung-5309,pdf.exe -
Modifies registry key 1 TTPs 3 IoCs
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Suspicious use of WriteProcessMemory 36 IoCs
Processes:
FREWITT Auftragsbestätigung-5309,pdf.execmd.execmd.execmd.exedescription pid process target process PID 4264 wrote to memory of 4580 4264 FREWITT Auftragsbestätigung-5309,pdf.exe mobsync.exe PID 4264 wrote to memory of 4580 4264 FREWITT Auftragsbestätigung-5309,pdf.exe mobsync.exe PID 4264 wrote to memory of 4580 4264 FREWITT Auftragsbestätigung-5309,pdf.exe mobsync.exe PID 4264 wrote to memory of 4580 4264 FREWITT Auftragsbestätigung-5309,pdf.exe mobsync.exe PID 4264 wrote to memory of 4580 4264 FREWITT Auftragsbestätigung-5309,pdf.exe mobsync.exe PID 4264 wrote to memory of 4580 4264 FREWITT Auftragsbestätigung-5309,pdf.exe mobsync.exe PID 4264 wrote to memory of 4580 4264 FREWITT Auftragsbestätigung-5309,pdf.exe mobsync.exe PID 4264 wrote to memory of 4580 4264 FREWITT Auftragsbestätigung-5309,pdf.exe mobsync.exe PID 4264 wrote to memory of 4580 4264 FREWITT Auftragsbestätigung-5309,pdf.exe mobsync.exe PID 4264 wrote to memory of 4580 4264 FREWITT Auftragsbestätigung-5309,pdf.exe mobsync.exe PID 4264 wrote to memory of 4580 4264 FREWITT Auftragsbestätigung-5309,pdf.exe mobsync.exe PID 4264 wrote to memory of 4580 4264 FREWITT Auftragsbestätigung-5309,pdf.exe mobsync.exe PID 4264 wrote to memory of 4580 4264 FREWITT Auftragsbestätigung-5309,pdf.exe mobsync.exe PID 4264 wrote to memory of 4580 4264 FREWITT Auftragsbestätigung-5309,pdf.exe mobsync.exe PID 4264 wrote to memory of 4580 4264 FREWITT Auftragsbestätigung-5309,pdf.exe mobsync.exe PID 4264 wrote to memory of 4492 4264 FREWITT Auftragsbestätigung-5309,pdf.exe cmd.exe PID 4264 wrote to memory of 4492 4264 FREWITT Auftragsbestätigung-5309,pdf.exe cmd.exe PID 4264 wrote to memory of 4492 4264 FREWITT Auftragsbestätigung-5309,pdf.exe cmd.exe PID 4492 wrote to memory of 4636 4492 cmd.exe cmd.exe PID 4492 wrote to memory of 4636 4492 cmd.exe cmd.exe PID 4492 wrote to memory of 4636 4492 cmd.exe cmd.exe PID 4636 wrote to memory of 440 4636 cmd.exe reg.exe PID 4636 wrote to memory of 440 4636 cmd.exe reg.exe PID 4636 wrote to memory of 440 4636 cmd.exe reg.exe PID 4636 wrote to memory of 604 4636 cmd.exe reg.exe PID 4636 wrote to memory of 604 4636 cmd.exe reg.exe PID 4636 wrote to memory of 604 4636 cmd.exe reg.exe PID 4636 wrote to memory of 828 4636 cmd.exe schtasks.exe PID 4636 wrote to memory of 828 4636 cmd.exe schtasks.exe PID 4636 wrote to memory of 828 4636 cmd.exe schtasks.exe PID 4264 wrote to memory of 1204 4264 FREWITT Auftragsbestätigung-5309,pdf.exe cmd.exe PID 4264 wrote to memory of 1204 4264 FREWITT Auftragsbestätigung-5309,pdf.exe cmd.exe PID 4264 wrote to memory of 1204 4264 FREWITT Auftragsbestätigung-5309,pdf.exe cmd.exe PID 1204 wrote to memory of 1552 1204 cmd.exe reg.exe PID 1204 wrote to memory of 1552 1204 cmd.exe reg.exe PID 1204 wrote to memory of 1552 1204 cmd.exe reg.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\FREWITT Auftragsbestätigung-5309,pdf.exe"C:\Users\Admin\AppData\Local\Temp\FREWITT Auftragsbestätigung-5309,pdf.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\mobsync.exeC:\Windows\System32\mobsync.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
Loading Replay Monitor...
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/440-122-0x0000000000000000-mapping.dmp
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memory/604-123-0x0000000000000000-mapping.dmp
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memory/828-124-0x0000000000000000-mapping.dmp
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memory/1204-130-0x0000000000000000-mapping.dmp
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memory/1552-132-0x0000000000000000-mapping.dmp
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memory/4264-115-0x0000000000650000-0x0000000000651000-memory.dmpFilesize
4KB
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memory/4264-116-0x0000000000671000-0x0000000000685000-memory.dmpFilesize
80KB
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memory/4492-118-0x0000000000000000-mapping.dmp
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memory/4580-127-0x0000000002CE0000-0x0000000002CE1000-memory.dmpFilesize
4KB
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memory/4580-125-0x0000000002C80000-0x0000000002C81000-memory.dmpFilesize
4KB
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memory/4580-128-0x0000000072600000-0x000000007267C000-memory.dmpFilesize
496KB
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memory/4580-129-0x0000000000400000-0x0000000000479000-memory.dmpFilesize
484KB
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memory/4580-126-0x0000000002D40000-0x0000000002D41000-memory.dmpFilesize
4KB
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memory/4580-117-0x0000000000000000-mapping.dmp
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memory/4636-120-0x0000000000000000-mapping.dmp