Analysis
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max time kernel
148s -
max time network
33s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
16-03-2023 14:21
Static task
static1
Behavioral task
behavioral1
Sample
21f1e57607e3734bd31d55b02f3fbb9e.exe
Resource
win7-20230220-en
General
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Target
21f1e57607e3734bd31d55b02f3fbb9e.exe
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Size
791KB
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MD5
21f1e57607e3734bd31d55b02f3fbb9e
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SHA1
2653db1285efc7b847bb56a4e6a5434b03350ac5
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SHA256
6d6a5f70a5f8d597d4074ac0c2d84dd9ed5f41aa39305f4260b831a03bec4569
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SHA512
833a04a5edb72e31c5926907f317132c28b1d19be25d6f4fa74292d1da24eeb0f4a72968d0ae79d3c09e4d1e0010196ab92fab4e80385b690e96e28a3adca66c
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SSDEEP
24576:eaO+WvtXJNDY+mfQ2p0WGstpe8gNZ4bG58b4H:ex+KZNDvmfd+WGsi4658M
Malware Config
Extracted
cryptbot
http://erniku42.top/gate.php
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payload_url
http://ovapfa05.top/unfele
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
Processes:
DpEditor.exeunfele.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ DpEditor.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ unfele.exe -
Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
DpEditor.exeunfele.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion DpEditor.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion unfele.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion unfele.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion DpEditor.exe -
Deletes itself 1 IoCs
Processes:
cmd.exepid process 380 cmd.exe -
Executes dropped EXE 2 IoCs
Processes:
unfele.exeDpEditor.exepid process 2016 unfele.exe 1612 DpEditor.exe -
Loads dropped DLL 2 IoCs
Processes:
cmd.exeunfele.exepid process 744 cmd.exe 2016 unfele.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.exe themida \Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.exe themida C:\Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.exe themida behavioral1/memory/2016-147-0x0000000001300000-0x00000000019EB000-memory.dmp themida behavioral1/memory/2016-148-0x0000000001300000-0x00000000019EB000-memory.dmp themida behavioral1/memory/2016-150-0x0000000001300000-0x00000000019EB000-memory.dmp themida behavioral1/memory/2016-149-0x0000000001300000-0x00000000019EB000-memory.dmp themida behavioral1/memory/2016-151-0x0000000001300000-0x00000000019EB000-memory.dmp themida \Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe themida behavioral1/memory/2016-157-0x0000000001300000-0x00000000019EB000-memory.dmp themida C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe themida behavioral1/memory/1612-159-0x0000000000830000-0x0000000000F1B000-memory.dmp themida behavioral1/memory/1612-160-0x0000000000830000-0x0000000000F1B000-memory.dmp themida behavioral1/memory/1612-162-0x0000000000830000-0x0000000000F1B000-memory.dmp themida behavioral1/memory/1612-161-0x0000000000830000-0x0000000000F1B000-memory.dmp themida behavioral1/memory/1612-163-0x0000000000830000-0x0000000000F1B000-memory.dmp themida behavioral1/memory/1612-165-0x0000000000830000-0x0000000000F1B000-memory.dmp themida -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Processes:
unfele.exeDpEditor.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA unfele.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA DpEditor.exe -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
21f1e57607e3734bd31d55b02f3fbb9e.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum 21f1e57607e3734bd31d55b02f3fbb9e.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 21f1e57607e3734bd31d55b02f3fbb9e.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
unfele.exeDpEditor.exepid process 2016 unfele.exe 1612 DpEditor.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
21f1e57607e3734bd31d55b02f3fbb9e.exedescription pid process target process PID 1604 set thread context of 1412 1604 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
21f1e57607e3734bd31d55b02f3fbb9e.exedescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 21f1e57607e3734bd31d55b02f3fbb9e.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 21f1e57607e3734bd31d55b02f3fbb9e.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 21f1e57607e3734bd31d55b02f3fbb9e.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1040 timeout.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
DpEditor.exepid process 1612 DpEditor.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
21f1e57607e3734bd31d55b02f3fbb9e.exeunfele.exeDpEditor.exepid process 1412 21f1e57607e3734bd31d55b02f3fbb9e.exe 2016 unfele.exe 1612 DpEditor.exe -
Suspicious use of WriteProcessMemory 32 IoCs
Processes:
21f1e57607e3734bd31d55b02f3fbb9e.exe21f1e57607e3734bd31d55b02f3fbb9e.execmd.execmd.exeunfele.exedescription pid process target process PID 1604 wrote to memory of 1412 1604 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 1604 wrote to memory of 1412 1604 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 1604 wrote to memory of 1412 1604 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 1604 wrote to memory of 1412 1604 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 1604 wrote to memory of 1412 1604 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 1604 wrote to memory of 1412 1604 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 1604 wrote to memory of 1412 1604 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 1604 wrote to memory of 1412 1604 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 1604 wrote to memory of 1412 1604 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 1604 wrote to memory of 1412 1604 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 1604 wrote to memory of 1412 1604 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 1604 wrote to memory of 1412 1604 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 1412 wrote to memory of 744 1412 21f1e57607e3734bd31d55b02f3fbb9e.exe cmd.exe PID 1412 wrote to memory of 744 1412 21f1e57607e3734bd31d55b02f3fbb9e.exe cmd.exe PID 1412 wrote to memory of 744 1412 21f1e57607e3734bd31d55b02f3fbb9e.exe cmd.exe PID 1412 wrote to memory of 744 1412 21f1e57607e3734bd31d55b02f3fbb9e.exe cmd.exe PID 1412 wrote to memory of 380 1412 21f1e57607e3734bd31d55b02f3fbb9e.exe cmd.exe PID 1412 wrote to memory of 380 1412 21f1e57607e3734bd31d55b02f3fbb9e.exe cmd.exe PID 1412 wrote to memory of 380 1412 21f1e57607e3734bd31d55b02f3fbb9e.exe cmd.exe PID 1412 wrote to memory of 380 1412 21f1e57607e3734bd31d55b02f3fbb9e.exe cmd.exe PID 380 wrote to memory of 1040 380 cmd.exe timeout.exe PID 380 wrote to memory of 1040 380 cmd.exe timeout.exe PID 380 wrote to memory of 1040 380 cmd.exe timeout.exe PID 380 wrote to memory of 1040 380 cmd.exe timeout.exe PID 744 wrote to memory of 2016 744 cmd.exe unfele.exe PID 744 wrote to memory of 2016 744 cmd.exe unfele.exe PID 744 wrote to memory of 2016 744 cmd.exe unfele.exe PID 744 wrote to memory of 2016 744 cmd.exe unfele.exe PID 2016 wrote to memory of 1612 2016 unfele.exe DpEditor.exe PID 2016 wrote to memory of 1612 2016 unfele.exe DpEditor.exe PID 2016 wrote to memory of 1612 2016 unfele.exe DpEditor.exe PID 2016 wrote to memory of 1612 2016 unfele.exe DpEditor.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\21f1e57607e3734bd31d55b02f3fbb9e.exe"C:\Users\Admin\AppData\Local\Temp\21f1e57607e3734bd31d55b02f3fbb9e.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\21f1e57607e3734bd31d55b02f3fbb9e.exe"C:\Users\Admin\AppData\Local\Temp\21f1e57607e3734bd31d55b02f3fbb9e.exe"2⤵
- Maps connected drives based on registry
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.exe3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.exeC:\Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.exe4⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe"C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe"5⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout -t 5 && del "C:\Users\Admin\AppData\Local\Temp\21f1e57607e3734bd31d55b02f3fbb9e.exe"3⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout -t 54⤵
- Delays execution with timeout.exe
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\5BED.tmpFilesize
32B
MD50bbf74f0949aafa4bfd20ff65ac39725
SHA1db3b6ece625c1946ca70943ce7c83f0f44d01b8d
SHA2569822a5194a3aee6a62472654f3a5a8e1e409f48450f4b1e589092aa22afba1ea
SHA5120177b6f71662249fb9af79a7ba584a39b3b808b92bc80372d4362ec1fc580c0f2303e0ee7af9d3b6251fa0c6e3150dbb9f18ad27ba6e791c9a0ddde3a9993551
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C:\Users\Admin\AppData\Local\Temp\5F0C.tmpFilesize
71KB
MD5e5e23f78017d1e6eddfc8480e1679ee4
SHA10667bd1b7129b105bd2c66ef6ad54c9648aec072
SHA2564fed2f4c33a3876390d8520f184062927aca8e0ce3538127de3a2f66ea856d91
SHA512b1260e7ba7ad6d5dd0daeabc5f7cc1fc7a2e9259092f8d70d3d9eed923ed8aa60adcce4c27e9cb20966d500ed59edaaba9570f01d6a84180f1fb83e7b5c20049
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C:\Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.exeFilesize
2.7MB
MD5a7729b292d51fa985505d96f0414d3c1
SHA130a0d5fac038a662c98a5c96e647e8f00f5b24a2
SHA25628bf6de04f62aa7bfd32ad237bade505e899df57bbfde31b46eee3818e5c705e
SHA512bca001fbe8a7a5df36a0fa36ddd34a42a5f0591df3fff6987f7b1212a3b7d7a5528fb0fa393ae1a0d600477e2bc75a3075e1270d052000ac516d9ed585baafe4
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C:\Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.exeFilesize
2.7MB
MD5a7729b292d51fa985505d96f0414d3c1
SHA130a0d5fac038a662c98a5c96e647e8f00f5b24a2
SHA25628bf6de04f62aa7bfd32ad237bade505e899df57bbfde31b46eee3818e5c705e
SHA512bca001fbe8a7a5df36a0fa36ddd34a42a5f0591df3fff6987f7b1212a3b7d7a5528fb0fa393ae1a0d600477e2bc75a3075e1270d052000ac516d9ed585baafe4
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C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exeFilesize
2.7MB
MD5a7729b292d51fa985505d96f0414d3c1
SHA130a0d5fac038a662c98a5c96e647e8f00f5b24a2
SHA25628bf6de04f62aa7bfd32ad237bade505e899df57bbfde31b46eee3818e5c705e
SHA512bca001fbe8a7a5df36a0fa36ddd34a42a5f0591df3fff6987f7b1212a3b7d7a5528fb0fa393ae1a0d600477e2bc75a3075e1270d052000ac516d9ed585baafe4
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\Users\Admin\AppData\Roaming\A5347EE2B85E31D3\unfele.exeFilesize
2.7MB
MD5a7729b292d51fa985505d96f0414d3c1
SHA130a0d5fac038a662c98a5c96e647e8f00f5b24a2
SHA25628bf6de04f62aa7bfd32ad237bade505e899df57bbfde31b46eee3818e5c705e
SHA512bca001fbe8a7a5df36a0fa36ddd34a42a5f0591df3fff6987f7b1212a3b7d7a5528fb0fa393ae1a0d600477e2bc75a3075e1270d052000ac516d9ed585baafe4
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\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exeFilesize
2.7MB
MD5a7729b292d51fa985505d96f0414d3c1
SHA130a0d5fac038a662c98a5c96e647e8f00f5b24a2
SHA25628bf6de04f62aa7bfd32ad237bade505e899df57bbfde31b46eee3818e5c705e
SHA512bca001fbe8a7a5df36a0fa36ddd34a42a5f0591df3fff6987f7b1212a3b7d7a5528fb0fa393ae1a0d600477e2bc75a3075e1270d052000ac516d9ed585baafe4
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memory/744-146-0x0000000002140000-0x000000000282B000-memory.dmpFilesize
6.9MB
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memory/1412-56-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/1412-55-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/1412-57-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/1412-60-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/1412-59-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/1412-139-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/1412-141-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/1412-58-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/1412-65-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/1412-64-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/1412-61-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/1412-62-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/1412-54-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/1612-163-0x0000000000830000-0x0000000000F1B000-memory.dmpFilesize
6.9MB
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memory/1612-161-0x0000000000830000-0x0000000000F1B000-memory.dmpFilesize
6.9MB
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memory/1612-162-0x0000000000830000-0x0000000000F1B000-memory.dmpFilesize
6.9MB
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memory/1612-165-0x0000000000830000-0x0000000000F1B000-memory.dmpFilesize
6.9MB
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memory/1612-160-0x0000000000830000-0x0000000000F1B000-memory.dmpFilesize
6.9MB
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memory/1612-159-0x0000000000830000-0x0000000000F1B000-memory.dmpFilesize
6.9MB
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memory/2016-147-0x0000000001300000-0x00000000019EB000-memory.dmpFilesize
6.9MB
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memory/2016-157-0x0000000001300000-0x00000000019EB000-memory.dmpFilesize
6.9MB
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memory/2016-151-0x0000000001300000-0x00000000019EB000-memory.dmpFilesize
6.9MB
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memory/2016-149-0x0000000001300000-0x00000000019EB000-memory.dmpFilesize
6.9MB
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memory/2016-150-0x0000000001300000-0x00000000019EB000-memory.dmpFilesize
6.9MB
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memory/2016-148-0x0000000001300000-0x00000000019EB000-memory.dmpFilesize
6.9MB