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Analysis
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max time kernel
140s -
max time network
28s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
17/03/2023, 12:21
Static task
static1
Behavioral task
behavioral1
Sample
9c27c3c506f2c018c73d1ad20623e5d2.exe
Resource
win7-20230220-en
General
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Target
9c27c3c506f2c018c73d1ad20623e5d2.exe
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Size
791KB
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MD5
9c27c3c506f2c018c73d1ad20623e5d2
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SHA1
236c8990a2133fe0a3ca2fa0498999a85893a7b5
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SHA256
40d1db94dc15e8042332d08a56ab9694cd27d86a124941fffd12ec4ee8dfe527
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SHA512
911984acfe90d4d4842e84a22c50b20bb35d6caa66bd7485faa727b678cb520a11bba70585a47263cc88a95ecff115135cabf91b649e03dc4610bc818628b3e0
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SSDEEP
24576:qLsifA9O1vvbWxmS1oiSFLKAypX/Q+UcH:qLsifu0W0iSFL3AQ7k
Malware Config
Extracted
cryptbot
http://ernwld52.top/gate.php
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ DpEditor.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ prebid.exe -
Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion prebid.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion prebid.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion DpEditor.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion DpEditor.exe -
Deletes itself 1 IoCs
pid Process 1244 cmd.exe -
Executes dropped EXE 2 IoCs
pid Process 1152 prebid.exe 1500 DpEditor.exe -
Loads dropped DLL 2 IoCs
pid Process 1036 cmd.exe 1152 prebid.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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resource yara_rule behavioral1/files/0x0007000000013148-143.dat themida behavioral1/files/0x0007000000013148-142.dat themida behavioral1/files/0x0007000000013148-144.dat themida behavioral1/memory/1152-145-0x0000000000A00000-0x000000000113C000-memory.dmp themida behavioral1/memory/1152-146-0x0000000000A00000-0x000000000113C000-memory.dmp themida behavioral1/memory/1152-147-0x0000000000A00000-0x000000000113C000-memory.dmp themida behavioral1/memory/1152-148-0x0000000000A00000-0x000000000113C000-memory.dmp themida behavioral1/memory/1152-150-0x0000000000A00000-0x000000000113C000-memory.dmp themida behavioral1/memory/1152-151-0x0000000000A00000-0x000000000113C000-memory.dmp themida behavioral1/files/0x00070000000132ef-153.dat themida behavioral1/memory/1152-156-0x0000000000A00000-0x000000000113C000-memory.dmp themida behavioral1/files/0x00070000000132ef-157.dat themida behavioral1/memory/1500-158-0x0000000000230000-0x000000000096C000-memory.dmp themida behavioral1/memory/1500-159-0x0000000000230000-0x000000000096C000-memory.dmp themida behavioral1/memory/1500-160-0x0000000000230000-0x000000000096C000-memory.dmp themida behavioral1/memory/1500-161-0x0000000000230000-0x000000000096C000-memory.dmp themida behavioral1/memory/1500-162-0x0000000000230000-0x000000000096C000-memory.dmp themida behavioral1/memory/1500-163-0x0000000000230000-0x000000000096C000-memory.dmp themida behavioral1/memory/1500-164-0x0000000000230000-0x000000000096C000-memory.dmp themida behavioral1/memory/1500-165-0x0000000000230000-0x000000000096C000-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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description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA prebid.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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum 9c27c3c506f2c018c73d1ad20623e5d2.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 9c27c3c506f2c018c73d1ad20623e5d2.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 1152 prebid.exe 1500 DpEditor.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1604 set thread context of 1952 1604 9c27c3c506f2c018c73d1ad20623e5d2.exe 28 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 9c27c3c506f2c018c73d1ad20623e5d2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 9c27c3c506f2c018c73d1ad20623e5d2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 9c27c3c506f2c018c73d1ad20623e5d2.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 1596 timeout.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1500 DpEditor.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1952 9c27c3c506f2c018c73d1ad20623e5d2.exe 1152 prebid.exe 1500 DpEditor.exe -
Suspicious use of WriteProcessMemory 32 IoCs
description pid Process procid_target PID 1604 wrote to memory of 1952 1604 9c27c3c506f2c018c73d1ad20623e5d2.exe 28 PID 1604 wrote to memory of 1952 1604 9c27c3c506f2c018c73d1ad20623e5d2.exe 28 PID 1604 wrote to memory of 1952 1604 9c27c3c506f2c018c73d1ad20623e5d2.exe 28 PID 1604 wrote to memory of 1952 1604 9c27c3c506f2c018c73d1ad20623e5d2.exe 28 PID 1604 wrote to memory of 1952 1604 9c27c3c506f2c018c73d1ad20623e5d2.exe 28 PID 1604 wrote to memory of 1952 1604 9c27c3c506f2c018c73d1ad20623e5d2.exe 28 PID 1604 wrote to memory of 1952 1604 9c27c3c506f2c018c73d1ad20623e5d2.exe 28 PID 1604 wrote to memory of 1952 1604 9c27c3c506f2c018c73d1ad20623e5d2.exe 28 PID 1604 wrote to memory of 1952 1604 9c27c3c506f2c018c73d1ad20623e5d2.exe 28 PID 1604 wrote to memory of 1952 1604 9c27c3c506f2c018c73d1ad20623e5d2.exe 28 PID 1604 wrote to memory of 1952 1604 9c27c3c506f2c018c73d1ad20623e5d2.exe 28 PID 1604 wrote to memory of 1952 1604 9c27c3c506f2c018c73d1ad20623e5d2.exe 28 PID 1952 wrote to memory of 1036 1952 9c27c3c506f2c018c73d1ad20623e5d2.exe 30 PID 1952 wrote to memory of 1036 1952 9c27c3c506f2c018c73d1ad20623e5d2.exe 30 PID 1952 wrote to memory of 1036 1952 9c27c3c506f2c018c73d1ad20623e5d2.exe 30 PID 1952 wrote to memory of 1036 1952 9c27c3c506f2c018c73d1ad20623e5d2.exe 30 PID 1952 wrote to memory of 1244 1952 9c27c3c506f2c018c73d1ad20623e5d2.exe 32 PID 1952 wrote to memory of 1244 1952 9c27c3c506f2c018c73d1ad20623e5d2.exe 32 PID 1952 wrote to memory of 1244 1952 9c27c3c506f2c018c73d1ad20623e5d2.exe 32 PID 1952 wrote to memory of 1244 1952 9c27c3c506f2c018c73d1ad20623e5d2.exe 32 PID 1036 wrote to memory of 1152 1036 cmd.exe 34 PID 1036 wrote to memory of 1152 1036 cmd.exe 34 PID 1036 wrote to memory of 1152 1036 cmd.exe 34 PID 1036 wrote to memory of 1152 1036 cmd.exe 34 PID 1244 wrote to memory of 1596 1244 cmd.exe 35 PID 1244 wrote to memory of 1596 1244 cmd.exe 35 PID 1244 wrote to memory of 1596 1244 cmd.exe 35 PID 1244 wrote to memory of 1596 1244 cmd.exe 35 PID 1152 wrote to memory of 1500 1152 prebid.exe 36 PID 1152 wrote to memory of 1500 1152 prebid.exe 36 PID 1152 wrote to memory of 1500 1152 prebid.exe 36 PID 1152 wrote to memory of 1500 1152 prebid.exe 36
Processes
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C:\Users\Admin\AppData\Local\Temp\9c27c3c506f2c018c73d1ad20623e5d2.exe"C:\Users\Admin\AppData\Local\Temp\9c27c3c506f2c018c73d1ad20623e5d2.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1604 -
C:\Users\Admin\AppData\Local\Temp\9c27c3c506f2c018c73d1ad20623e5d2.exe"C:\Users\Admin\AppData\Local\Temp\9c27c3c506f2c018c73d1ad20623e5d2.exe"2⤵
- Maps connected drives based on registry
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1952 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Roaming\C7623F2CCCDD67C6\prebid.exe3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1036 -
C:\Users\Admin\AppData\Roaming\C7623F2CCCDD67C6\prebid.exeC:\Users\Admin\AppData\Roaming\C7623F2CCCDD67C6\prebid.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
PID:1152 -
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
PID:1500
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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\9c27c3c506f2c018c73d1ad20623e5d2.exe"3⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1244 -
C:\Windows\SysWOW64\timeout.exetimeout -t 54⤵
- Delays execution with timeout.exe
PID:1596
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
32B
MD548255136fc205998b4ebbe6f72b5cdd0
SHA1c6f2c7fdd75a999a61ddfb5b4923d6a0dad917b1
SHA25600523df8a35803806212867d9f6ab89d17a1bfdd3aef5fbb1dc10fcd6faa114c
SHA512c74a7e214f93d124aed393e00f720ac91ca46328f4edf710b26235145b676003261943e4779acbc52ef14667a78636968c04c1065ac5cc70ba9f54d6ab0226de
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Filesize
71KB
MD56082dd13ad8102d17f9db9cd07600e97
SHA139becc88cea914d843b3c5521038907f2f2f4e71
SHA25640a3f938c8c1eb929771c444d5f8887c42c7cde6281690e2071a2593ba92e48a
SHA512b7d5c716b6339b3138492c8b0cf4c9540a8d8224f9d5e72e34ceab442bdfa9c855473bbed68a489851f019461e1b1f9d86baf067be556c67b948c930899d3c1e
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Filesize
2.8MB
MD5a2ee23e1c6ca048c635bde8d197631a8
SHA19983cbd777a090b4ef2518fd40862f1925a419e9
SHA256dba21175cccfd95b053c628b5162f3bf2af5fc9b0aaa0d2b384a6636a1921a67
SHA512d42909e0aeb14bff6cd25867d927fdcb0d1fa88228a0d5059fa5ebca9db0cba6bc4f49f7ef99b33f2378cc5f007fbf91ba8853f5758540e918486559ed4d9ce6
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Filesize
2.8MB
MD5a2ee23e1c6ca048c635bde8d197631a8
SHA19983cbd777a090b4ef2518fd40862f1925a419e9
SHA256dba21175cccfd95b053c628b5162f3bf2af5fc9b0aaa0d2b384a6636a1921a67
SHA512d42909e0aeb14bff6cd25867d927fdcb0d1fa88228a0d5059fa5ebca9db0cba6bc4f49f7ef99b33f2378cc5f007fbf91ba8853f5758540e918486559ed4d9ce6
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Filesize
2.8MB
MD5a2ee23e1c6ca048c635bde8d197631a8
SHA19983cbd777a090b4ef2518fd40862f1925a419e9
SHA256dba21175cccfd95b053c628b5162f3bf2af5fc9b0aaa0d2b384a6636a1921a67
SHA512d42909e0aeb14bff6cd25867d927fdcb0d1fa88228a0d5059fa5ebca9db0cba6bc4f49f7ef99b33f2378cc5f007fbf91ba8853f5758540e918486559ed4d9ce6
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Filesize
2.8MB
MD5a2ee23e1c6ca048c635bde8d197631a8
SHA19983cbd777a090b4ef2518fd40862f1925a419e9
SHA256dba21175cccfd95b053c628b5162f3bf2af5fc9b0aaa0d2b384a6636a1921a67
SHA512d42909e0aeb14bff6cd25867d927fdcb0d1fa88228a0d5059fa5ebca9db0cba6bc4f49f7ef99b33f2378cc5f007fbf91ba8853f5758540e918486559ed4d9ce6
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Filesize
2.8MB
MD5a2ee23e1c6ca048c635bde8d197631a8
SHA19983cbd777a090b4ef2518fd40862f1925a419e9
SHA256dba21175cccfd95b053c628b5162f3bf2af5fc9b0aaa0d2b384a6636a1921a67
SHA512d42909e0aeb14bff6cd25867d927fdcb0d1fa88228a0d5059fa5ebca9db0cba6bc4f49f7ef99b33f2378cc5f007fbf91ba8853f5758540e918486559ed4d9ce6