Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
09-08-2024 04:09
Behavioral task
behavioral1
Sample
2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe
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Size
1.1MB
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MD5
f32df0dde450209b1a85d594220c388c
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SHA1
79f1621964fe7f663cb51e7806d9979e070cac39
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SHA256
3be9cda8c1bc83adc04bf96d4c8376959698698dd8b09ac48c4a506d2f0ef98e
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SHA512
8d37806404df35922fb54045346c23b46ca54c4538ade6078e19ee15240d587ddb6c2adfa44b5ad2aa08e141cd8290a47a65c63c027672b4555abbcb08af7787
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SSDEEP
24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO83WQHUq7:F0dwAYZt6C31WeTVRPOh37Uq7
Malware Config
Extracted
djvu
http://spaceris.com/test1/get.php
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extension
.bpsm
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offline_id
pu5TgkFNAS5fWQ2rCzdamsmMrE5wSlTupdTI0pt1
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payload_url
http://uaery.top/dl/build2.exe
http://spaceris.com/files/1/build3.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 1 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\e947bdff-abfc-420e-93e0-155fcb140051\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\e947bdff-abfc-420e-93e0-155fcb140051\\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe\" --AutoStart" 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.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.
Processes:
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.
Processes:
icacls.exe2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exepid process 1952 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe 1952 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe 2752 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe 2752 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exedescription pid process target process PID 1952 wrote to memory of 2712 1952 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe icacls.exe PID 1952 wrote to memory of 2712 1952 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe icacls.exe PID 1952 wrote to memory of 2712 1952 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe icacls.exe PID 1952 wrote to memory of 2712 1952 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe icacls.exe PID 1952 wrote to memory of 2752 1952 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe PID 1952 wrote to memory of 2752 1952 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe PID 1952 wrote to memory of 2752 1952 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe PID 1952 wrote to memory of 2752 1952 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe 2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe"1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1952 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\e947bdff-abfc-420e-93e0-155fcb140051" /deny *S-1-1-0:(OI)(CI)(DE,DC)2⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2712 -
C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe" --Admin IsNotAutoStart IsNotTask2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2752
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
MD5ee243bade072dc5608a576eef0b657de
SHA12a5109c80bc3840555e3d7263c047b08e5c4bedf
SHA2563b95aedd8458ce749168721e5823c8e87fa94ce831c2d20bf0ed902866fa64be
SHA51229f6646d255044397c87be64223e4b8b6355c85a95275f6a60d2c248d62111125707dde1d4b8750e557afff2eda8c53e82c11bdd6d68d96e24ee68400bc0cf2f
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5e1ac0f35789dd37d0cba914bbe18e278
SHA1f51680e6bd5c8e3716747d7077976c7f43df67b8
SHA25672a8cde0adda5104df6f08d2f64cfe5e38eaa56a59eac351927386ce10a3ed18
SHA51231189cb1cc14ae829cf2fd3743214ce070e102dc888aaeb533638c5ebe9e5dba88f89be0e09c160aa2304cbb86988acbec50113b76ea744153897c735eb60282
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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C:\Users\Admin\AppData\Local\e947bdff-abfc-420e-93e0-155fcb140051\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe
Filesize1.1MB
MD5f32df0dde450209b1a85d594220c388c
SHA179f1621964fe7f663cb51e7806d9979e070cac39
SHA2563be9cda8c1bc83adc04bf96d4c8376959698698dd8b09ac48c4a506d2f0ef98e
SHA5128d37806404df35922fb54045346c23b46ca54c4538ade6078e19ee15240d587ddb6c2adfa44b5ad2aa08e141cd8290a47a65c63c027672b4555abbcb08af7787