Analysis
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max time kernel
150s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-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:
unfele.exeDpEditor.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ unfele.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ DpEditor.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 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
21f1e57607e3734bd31d55b02f3fbb9e.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation 21f1e57607e3734bd31d55b02f3fbb9e.exe -
Executes dropped EXE 2 IoCs
Processes:
unfele.exeDpEditor.exepid process 4936 unfele.exe 3060 DpEditor.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\F55C879F72287FBB\unfele.exe themida C:\Users\Admin\AppData\Roaming\F55C879F72287FBB\unfele.exe themida behavioral2/memory/4936-241-0x0000000000310000-0x00000000009FB000-memory.dmp themida behavioral2/memory/4936-242-0x0000000000310000-0x00000000009FB000-memory.dmp themida behavioral2/memory/4936-243-0x0000000000310000-0x00000000009FB000-memory.dmp themida behavioral2/memory/4936-244-0x0000000000310000-0x00000000009FB000-memory.dmp themida behavioral2/memory/4936-245-0x0000000000310000-0x00000000009FB000-memory.dmp themida behavioral2/memory/4936-246-0x0000000000310000-0x00000000009FB000-memory.dmp themida C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe themida C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe themida behavioral2/memory/4936-250-0x0000000000310000-0x00000000009FB000-memory.dmp themida behavioral2/memory/3060-252-0x0000000000640000-0x0000000000D2B000-memory.dmp themida behavioral2/memory/3060-253-0x0000000000640000-0x0000000000D2B000-memory.dmp themida behavioral2/memory/3060-254-0x0000000000640000-0x0000000000D2B000-memory.dmp themida behavioral2/memory/3060-255-0x0000000000640000-0x0000000000D2B000-memory.dmp themida behavioral2/memory/3060-256-0x0000000000640000-0x0000000000D2B000-memory.dmp themida behavioral2/memory/3060-257-0x0000000000640000-0x0000000000D2B000-memory.dmp themida behavioral2/memory/3060-258-0x0000000000640000-0x0000000000D2B000-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 4936 unfele.exe 3060 DpEditor.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
21f1e57607e3734bd31d55b02f3fbb9e.exedescription pid process target process PID 372 set thread context of 4432 372 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 928 timeout.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
DpEditor.exepid process 3060 DpEditor.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
21f1e57607e3734bd31d55b02f3fbb9e.exeunfele.exeDpEditor.exepid process 4432 21f1e57607e3734bd31d55b02f3fbb9e.exe 4432 21f1e57607e3734bd31d55b02f3fbb9e.exe 4936 unfele.exe 4936 unfele.exe 3060 DpEditor.exe 3060 DpEditor.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
21f1e57607e3734bd31d55b02f3fbb9e.exe21f1e57607e3734bd31d55b02f3fbb9e.execmd.execmd.exeunfele.exedescription pid process target process PID 372 wrote to memory of 4432 372 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 372 wrote to memory of 4432 372 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 372 wrote to memory of 4432 372 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 372 wrote to memory of 4432 372 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 372 wrote to memory of 4432 372 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 372 wrote to memory of 4432 372 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 372 wrote to memory of 4432 372 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 372 wrote to memory of 4432 372 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 372 wrote to memory of 4432 372 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 372 wrote to memory of 4432 372 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 372 wrote to memory of 4432 372 21f1e57607e3734bd31d55b02f3fbb9e.exe 21f1e57607e3734bd31d55b02f3fbb9e.exe PID 4432 wrote to memory of 1860 4432 21f1e57607e3734bd31d55b02f3fbb9e.exe cmd.exe PID 4432 wrote to memory of 1860 4432 21f1e57607e3734bd31d55b02f3fbb9e.exe cmd.exe PID 4432 wrote to memory of 1860 4432 21f1e57607e3734bd31d55b02f3fbb9e.exe cmd.exe PID 4432 wrote to memory of 4256 4432 21f1e57607e3734bd31d55b02f3fbb9e.exe cmd.exe PID 4432 wrote to memory of 4256 4432 21f1e57607e3734bd31d55b02f3fbb9e.exe cmd.exe PID 4432 wrote to memory of 4256 4432 21f1e57607e3734bd31d55b02f3fbb9e.exe cmd.exe PID 4256 wrote to memory of 928 4256 cmd.exe timeout.exe PID 4256 wrote to memory of 928 4256 cmd.exe timeout.exe PID 4256 wrote to memory of 928 4256 cmd.exe timeout.exe PID 1860 wrote to memory of 4936 1860 cmd.exe unfele.exe PID 1860 wrote to memory of 4936 1860 cmd.exe unfele.exe PID 1860 wrote to memory of 4936 1860 cmd.exe unfele.exe PID 4936 wrote to memory of 3060 4936 unfele.exe DpEditor.exe PID 4936 wrote to memory of 3060 4936 unfele.exe DpEditor.exe PID 4936 wrote to memory of 3060 4936 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⤵
- Checks computer location settings
- 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\F55C879F72287FBB\unfele.exe3⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\F55C879F72287FBB\unfele.exeC:\Users\Admin\AppData\Roaming\F55C879F72287FBB\unfele.exe4⤵
- 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: 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⤵
- 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\1284.tmpFilesize
32B
MD518435224b67e2dce29d96efdf3369084
SHA13dc3ea4fc37493f0b223f416fcd8c28f331fbd88
SHA256a7292bb308500cbe976fca209e0e02f5a22aa2ee51c6a603b32ab9e574bb0138
SHA51266029de2edb19f78b1b5cfc6a15fd8d3d578c7eacf53ad5691cc25a084f2c332ccd87594fd850d822abf90670e6bfbb466fbc2ee0541beff0a94a039277acaf1
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C:\Users\Admin\AppData\Local\Temp\1509.tmpFilesize
71KB
MD553bf804f75123ed2339305be1d298398
SHA133a337e3e219da8ecd237b44fbcaf4864124a012
SHA2567d6155b8b6c9a78a70af6be7df47f1dac5f40215f4a6ae431d1ee27c021888f8
SHA5127611c75031b77b6098f1e70c1b27e0a95f259616f8b2f8acc734e371998badf321c10c9fb8669d61615673f0fb65787f0398966bda38cd430e009c83df00e16e
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C:\Users\Admin\AppData\Local\Temp\2030.tmpFilesize
2KB
MD5b2446d155f77cf70a33bb0c25172fa3f
SHA1c20d68dad9e872b4607a5677c4851f863c28daf7
SHA2560faba9ea9b88b2982372c66b2eea8d6a5d99fc565c37db53ba6a4075619cfffb
SHA5125d38e78c38f64a989570b431f7d2ef660c0678b3dc25baf3244499308535492de861a244e262720e36eeb4f8127eca62679c0b0383350c302783246191e82654
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C:\Users\Admin\AppData\Roaming\F55C879F72287FBB\unfele.exeFilesize
2.7MB
MD5a7729b292d51fa985505d96f0414d3c1
SHA130a0d5fac038a662c98a5c96e647e8f00f5b24a2
SHA25628bf6de04f62aa7bfd32ad237bade505e899df57bbfde31b46eee3818e5c705e
SHA512bca001fbe8a7a5df36a0fa36ddd34a42a5f0591df3fff6987f7b1212a3b7d7a5528fb0fa393ae1a0d600477e2bc75a3075e1270d052000ac516d9ed585baafe4
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C:\Users\Admin\AppData\Roaming\F55C879F72287FBB\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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C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exeFilesize
2.7MB
MD5a7729b292d51fa985505d96f0414d3c1
SHA130a0d5fac038a662c98a5c96e647e8f00f5b24a2
SHA25628bf6de04f62aa7bfd32ad237bade505e899df57bbfde31b46eee3818e5c705e
SHA512bca001fbe8a7a5df36a0fa36ddd34a42a5f0591df3fff6987f7b1212a3b7d7a5528fb0fa393ae1a0d600477e2bc75a3075e1270d052000ac516d9ed585baafe4
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memory/3060-252-0x0000000000640000-0x0000000000D2B000-memory.dmpFilesize
6.9MB
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memory/3060-253-0x0000000000640000-0x0000000000D2B000-memory.dmpFilesize
6.9MB
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memory/3060-258-0x0000000000640000-0x0000000000D2B000-memory.dmpFilesize
6.9MB
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memory/3060-257-0x0000000000640000-0x0000000000D2B000-memory.dmpFilesize
6.9MB
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memory/3060-256-0x0000000000640000-0x0000000000D2B000-memory.dmpFilesize
6.9MB
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memory/3060-255-0x0000000000640000-0x0000000000D2B000-memory.dmpFilesize
6.9MB
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memory/3060-254-0x0000000000640000-0x0000000000D2B000-memory.dmpFilesize
6.9MB
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memory/4432-135-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/4432-133-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/4432-236-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/4432-173-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/4432-234-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/4432-134-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/4432-136-0x0000000000400000-0x00000000004CB000-memory.dmpFilesize
812KB
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memory/4936-244-0x0000000000310000-0x00000000009FB000-memory.dmpFilesize
6.9MB
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memory/4936-243-0x0000000000310000-0x00000000009FB000-memory.dmpFilesize
6.9MB
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memory/4936-242-0x0000000000310000-0x00000000009FB000-memory.dmpFilesize
6.9MB
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memory/4936-241-0x0000000000310000-0x00000000009FB000-memory.dmpFilesize
6.9MB
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memory/4936-250-0x0000000000310000-0x00000000009FB000-memory.dmpFilesize
6.9MB
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memory/4936-246-0x0000000000310000-0x00000000009FB000-memory.dmpFilesize
6.9MB
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memory/4936-245-0x0000000000310000-0x00000000009FB000-memory.dmpFilesize
6.9MB