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Analysis
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max time kernel
132s -
max time network
135s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
06/09/2024, 06:45
Behavioral task
behavioral1
Sample
2024090698157dc534755cc2cc6325500707f7d4stop.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024090698157dc534755cc2cc6325500707f7d4stop.exe
Resource
win10v2004-20240802-en
General
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Target
2024090698157dc534755cc2cc6325500707f7d4stop.exe
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Size
1.1MB
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MD5
98157dc534755cc2cc6325500707f7d4
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SHA1
59621075dfa80ee4a1691e24fbb95f7f9314dc04
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SHA256
8b53d0a0c9e60040048b621009f3a580340dda75341f3b298d4869352396fc0e
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SHA512
9cb394871d98c0d8f6b20dd5261803563f3298ccfa6b9da2e6d5829d740fe1437b1f263438d968ca711a7d13d3ef2fa8ffdc1a4f330865842be8885d4706085d
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SSDEEP
24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8jWQHUq7:F0dwAYZt6C31WeTVRPOhj7Uq7
Malware Config
Extracted
djvu
http://tzgl.org/test1/get.php
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extension
.qqqw
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offline_id
Gy1ekaHyw11ZDr43dKFxYo9wA3NxFYOUEc6Pwvt1
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payload_url
http://lencu.top/dl/build01.exe
http://tzgl.org/files/1/build02.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 1 IoCs
resource yara_rule behavioral1/files/0x0008000000016d33-14.dat family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Modifies file permissions 1 TTPs 1 IoCs
pid Process 2804 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\baa9eccf-656c-4466-a5bc-3d3c1d74a7d1\\2024090698157dc534755cc2cc6325500707f7d4stop.exe\" --AutoStart" 2024090698157dc534755cc2cc6325500707f7d4stop.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 api.2ip.ua 5 api.2ip.ua 9 api.2ip.ua -
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 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024090698157dc534755cc2cc6325500707f7d4stop.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024090698157dc534755cc2cc6325500707f7d4stop.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2504 2024090698157dc534755cc2cc6325500707f7d4stop.exe 2504 2024090698157dc534755cc2cc6325500707f7d4stop.exe 2728 2024090698157dc534755cc2cc6325500707f7d4stop.exe 2728 2024090698157dc534755cc2cc6325500707f7d4stop.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2504 wrote to memory of 2804 2504 2024090698157dc534755cc2cc6325500707f7d4stop.exe 31 PID 2504 wrote to memory of 2804 2504 2024090698157dc534755cc2cc6325500707f7d4stop.exe 31 PID 2504 wrote to memory of 2804 2504 2024090698157dc534755cc2cc6325500707f7d4stop.exe 31 PID 2504 wrote to memory of 2804 2504 2024090698157dc534755cc2cc6325500707f7d4stop.exe 31 PID 2504 wrote to memory of 2728 2504 2024090698157dc534755cc2cc6325500707f7d4stop.exe 32 PID 2504 wrote to memory of 2728 2504 2024090698157dc534755cc2cc6325500707f7d4stop.exe 32 PID 2504 wrote to memory of 2728 2504 2024090698157dc534755cc2cc6325500707f7d4stop.exe 32 PID 2504 wrote to memory of 2728 2504 2024090698157dc534755cc2cc6325500707f7d4stop.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\2024090698157dc534755cc2cc6325500707f7d4stop.exe"C:\Users\Admin\AppData\Local\Temp\2024090698157dc534755cc2cc6325500707f7d4stop.exe"1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2504 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\baa9eccf-656c-4466-a5bc-3d3c1d74a7d1" /deny *S-1-1-0:(OI)(CI)(DE,DC)2⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2804
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C:\Users\Admin\AppData\Local\Temp\2024090698157dc534755cc2cc6325500707f7d4stop.exe"C:\Users\Admin\AppData\Local\Temp\2024090698157dc534755cc2cc6325500707f7d4stop.exe" --Admin IsNotAutoStart IsNotTask2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2728
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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
MD5a4048a88d7cd1da71490df6efa72f407
SHA1b564d43e8f1fc0e51495adc4935e209826aa53e7
SHA2561001fe8071cb602c300f33eee0929f14832216ec21b38d209af7e9feda68bf1b
SHA512332d301ef1963944188749ee865da8ba3f2e7f81ebb489bb3a286653244c3abdc233777d67e9aa24161dfd97cb28696c5df1dedc56dccbc7df811f3e96e036a5
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5af1a9fae758aa671579f99a828d78a8f
SHA153433675e68067c1f2bd3fc40463d076d707f78e
SHA25675391f0c0fd6190912e073aa96a84743905c1cdd483697762630db9960d619bd
SHA512157e10da042d92ce4399c59af072f6b9bb68ad838590bb4fde2688534aa54860d148be920c84ae17077e2a442a1479b9da4c983f1c1ebd713e769b35801d03fb
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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C:\Users\Admin\AppData\Local\baa9eccf-656c-4466-a5bc-3d3c1d74a7d1\2024090698157dc534755cc2cc6325500707f7d4stop.exe
Filesize1.1MB
MD598157dc534755cc2cc6325500707f7d4
SHA159621075dfa80ee4a1691e24fbb95f7f9314dc04
SHA2568b53d0a0c9e60040048b621009f3a580340dda75341f3b298d4869352396fc0e
SHA5129cb394871d98c0d8f6b20dd5261803563f3298ccfa6b9da2e6d5829d740fe1437b1f263438d968ca711a7d13d3ef2fa8ffdc1a4f330865842be8885d4706085d