Analysis
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max time kernel
145s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
26-08-2024 21:30
Static task
static1
Behavioral task
behavioral1
Sample
04e42207db45792cae0f6d3fd83f0680N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
04e42207db45792cae0f6d3fd83f0680N.exe
Resource
win10v2004-20240802-en
General
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Target
04e42207db45792cae0f6d3fd83f0680N.exe
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Size
801KB
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MD5
04e42207db45792cae0f6d3fd83f0680
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SHA1
cb17f3a1bb57541204afd27313b390e5ead5096c
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SHA256
b377b7b8211e454117ba3d6cd6bb1ac84c0105c8647187cb5cf19ad50c9d26b9
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SHA512
b81da4e8961bc8c25e6832db5c1227cb253e178e6c5a4db0725ed073639d944b8d8012865ace42b2781b3f09b082e44a8a19c2ee326a173acb8757caebacbbf7
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SSDEEP
24576:7oL6YwH+hUfoA5snjj0ZvgCxwaEbNHzy9XSm3XNEGQnA:cL6Yw2UfoOoEwaONQXHNEGe
Malware Config
Extracted
djvu
http://asvb.top/nddddhsspen6/get.php
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extension
.pcqq
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offline_id
3pNdLH1399769YerBBKCxHURRAqLhaXsGw3Fbkt1
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payload_url
http://asvb.top/files/penelop/updatewin1.exe
http://asvb.top/files/penelop/updatewin2.exe
http://asvb.top/files/penelop/updatewin.exe
http://asvb.top/files/penelop/3.exe
http://asvb.top/files/penelop/4.exe
http://asvb.top/files/penelop/5.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 14 IoCs
Processes:
resource yara_rule behavioral2/memory/2264-2-0x0000000002290000-0x00000000023AB000-memory.dmp family_djvu behavioral2/memory/712-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/712-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/712-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/712-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/712-17-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4584-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4584-23-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4584-25-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4584-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4584-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4584-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2332-52-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2332-55-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
04e42207db45792cae0f6d3fd83f0680N.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation 04e42207db45792cae0f6d3fd83f0680N.exe -
Executes dropped EXE 2 IoCs
Processes:
04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exepid process 5000 04e42207db45792cae0f6d3fd83f0680N.exe 2332 04e42207db45792cae0f6d3fd83f0680N.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
04e42207db45792cae0f6d3fd83f0680N.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\f7bd05f8-10e8-418d-8c09-54685154449e\\04e42207db45792cae0f6d3fd83f0680N.exe\" --AutoStart" 04e42207db45792cae0f6d3fd83f0680N.exe -
Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 14 api.2ip.ua 15 api.2ip.ua 30 api.2ip.ua 86 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
Processes:
04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exedescription pid process target process PID 2264 set thread context of 712 2264 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5032 set thread context of 4584 5032 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5000 set thread context of 2332 5000 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exeicacls.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 04e42207db45792cae0f6d3fd83f0680N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 04e42207db45792cae0f6d3fd83f0680N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 04e42207db45792cae0f6d3fd83f0680N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 04e42207db45792cae0f6d3fd83f0680N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 04e42207db45792cae0f6d3fd83f0680N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 04e42207db45792cae0f6d3fd83f0680N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exepid process 712 04e42207db45792cae0f6d3fd83f0680N.exe 712 04e42207db45792cae0f6d3fd83f0680N.exe 4584 04e42207db45792cae0f6d3fd83f0680N.exe 4584 04e42207db45792cae0f6d3fd83f0680N.exe 2332 04e42207db45792cae0f6d3fd83f0680N.exe 2332 04e42207db45792cae0f6d3fd83f0680N.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exe04e42207db45792cae0f6d3fd83f0680N.exedescription pid process target process PID 2264 wrote to memory of 712 2264 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2264 wrote to memory of 712 2264 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2264 wrote to memory of 712 2264 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2264 wrote to memory of 712 2264 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2264 wrote to memory of 712 2264 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2264 wrote to memory of 712 2264 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2264 wrote to memory of 712 2264 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2264 wrote to memory of 712 2264 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2264 wrote to memory of 712 2264 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 2264 wrote to memory of 712 2264 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 712 wrote to memory of 3660 712 04e42207db45792cae0f6d3fd83f0680N.exe icacls.exe PID 712 wrote to memory of 3660 712 04e42207db45792cae0f6d3fd83f0680N.exe icacls.exe PID 712 wrote to memory of 3660 712 04e42207db45792cae0f6d3fd83f0680N.exe icacls.exe PID 712 wrote to memory of 5032 712 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 712 wrote to memory of 5032 712 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 712 wrote to memory of 5032 712 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5032 wrote to memory of 4584 5032 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5032 wrote to memory of 4584 5032 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5032 wrote to memory of 4584 5032 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5032 wrote to memory of 4584 5032 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5032 wrote to memory of 4584 5032 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5032 wrote to memory of 4584 5032 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5032 wrote to memory of 4584 5032 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5032 wrote to memory of 4584 5032 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5032 wrote to memory of 4584 5032 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5032 wrote to memory of 4584 5032 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5000 wrote to memory of 2332 5000 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5000 wrote to memory of 2332 5000 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5000 wrote to memory of 2332 5000 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5000 wrote to memory of 2332 5000 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5000 wrote to memory of 2332 5000 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5000 wrote to memory of 2332 5000 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5000 wrote to memory of 2332 5000 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5000 wrote to memory of 2332 5000 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5000 wrote to memory of 2332 5000 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe PID 5000 wrote to memory of 2332 5000 04e42207db45792cae0f6d3fd83f0680N.exe 04e42207db45792cae0f6d3fd83f0680N.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\04e42207db45792cae0f6d3fd83f0680N.exe"C:\Users\Admin\AppData\Local\Temp\04e42207db45792cae0f6d3fd83f0680N.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2264 -
C:\Users\Admin\AppData\Local\Temp\04e42207db45792cae0f6d3fd83f0680N.exe"C:\Users\Admin\AppData\Local\Temp\04e42207db45792cae0f6d3fd83f0680N.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:712 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\f7bd05f8-10e8-418d-8c09-54685154449e" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:3660 -
C:\Users\Admin\AppData\Local\Temp\04e42207db45792cae0f6d3fd83f0680N.exe"C:\Users\Admin\AppData\Local\Temp\04e42207db45792cae0f6d3fd83f0680N.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5032 -
C:\Users\Admin\AppData\Local\Temp\04e42207db45792cae0f6d3fd83f0680N.exe"C:\Users\Admin\AppData\Local\Temp\04e42207db45792cae0f6d3fd83f0680N.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4584
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C:\Users\Admin\AppData\Local\f7bd05f8-10e8-418d-8c09-54685154449e\04e42207db45792cae0f6d3fd83f0680N.exeC:\Users\Admin\AppData\Local\f7bd05f8-10e8-418d-8c09-54685154449e\04e42207db45792cae0f6d3fd83f0680N.exe --Task1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5000 -
C:\Users\Admin\AppData\Local\f7bd05f8-10e8-418d-8c09-54685154449e\04e42207db45792cae0f6d3fd83f0680N.exeC:\Users\Admin\AppData\Local\f7bd05f8-10e8-418d-8c09-54685154449e\04e42207db45792cae0f6d3fd83f0680N.exe --Task2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2332
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD57fb5fa1534dcf77f2125b2403b30a0ee
SHA1365d96812a69ac0a4611ea4b70a3f306576cc3ea
SHA25633a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f
SHA512a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e
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Filesize
436B
MD5971c514f84bba0785f80aa1c23edfd79
SHA1732acea710a87530c6b08ecdf32a110d254a54c8
SHA256f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895
SHA51243dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize174B
MD503592e65aca2d5555614ce2fd0b7d401
SHA1461b9ca10c7a91b38b6241c309e43cd6cca728af
SHA256d9aa215393b4cdb1c8aa9670c8af8fc92010aa833076abce31129e15cbd9eb44
SHA512afd3470d2d0ca7e8fa57cbe9e51c81e9a8288d1ede1df79cb72f09def7e8aed5897136ea827482ed5e7408f277d3fa9e7f31782b3d66fa21d3a89c9564eff344
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5a01c776a34bbcb829925040330c5b7bf
SHA10a706bb49ff2cd8aee5cc3b1434a91b0676f94b3
SHA2567d799e802cc01d8205b72f987c25ac1c3061ba4b08f367a901d8d6e3c75070ab
SHA512d1104aa7ff38d12012bd9b72b8f780a0b25fce89a3bc696087f7d8165df4258383ea5002822dbe3d7e2429f4c97230a7fcf4b318fa494b9c2218a816e8e1ec2c
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C:\Users\Admin\AppData\Local\f7bd05f8-10e8-418d-8c09-54685154449e\04e42207db45792cae0f6d3fd83f0680N.exe
Filesize801KB
MD504e42207db45792cae0f6d3fd83f0680
SHA1cb17f3a1bb57541204afd27313b390e5ead5096c
SHA256b377b7b8211e454117ba3d6cd6bb1ac84c0105c8647187cb5cf19ad50c9d26b9
SHA512b81da4e8961bc8c25e6832db5c1227cb253e178e6c5a4db0725ed073639d944b8d8012865ace42b2781b3f09b082e44a8a19c2ee326a173acb8757caebacbbf7