Analysis
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max time kernel
118s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
08-08-2024 11:16
Behavioral task
behavioral1
Sample
2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe
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Size
1.1MB
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MD5
c11cf10ac6c3b434565b929ddf84c534
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SHA1
622e89291e0de0043f1daa5344d8d90fb26e8bb6
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SHA256
8268b6324c6890e1c93813ebbef9164c962af7be7a67f930c00e7879e1115014
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SHA512
19c1fc5740ea8d100d8d7df332a21038562a650a2c97e681db6ee19ff17bc56450d69dd96f8f30ae169475856d4fde2fad479acb93ee06e0e63dd9dd1a2a8971
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SSDEEP
24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8BWQHUq7:F0dwAYZt6C31WeTVRPOhB7Uq7
Malware Config
Extracted
djvu
http://drampik.com/test1/get.php
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extension
.mzqw
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offline_id
ex4uvTKsM2vEkIcr3MjXi2C6v27h1mS682iUXGt1
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payload_url
http://uaery.top/dl/build2.exe
http://drampik.com/files/1/build3.exe
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ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-cud8EGMtyB Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0635JOsie
Signatures
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Detected Djvu ransomware 1 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\ef1b9148-c49a-4738-8b4d-4c224b48f575\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_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:
2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\ef1b9148-c49a-4738-8b4d-4c224b48f575\\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe\" --AutoStart" 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_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 3 api.2ip.ua 4 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:
2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exeicacls.exe2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exepid process 2924 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe 2924 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe 2836 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe 2836 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exedescription pid process target process PID 2924 wrote to memory of 2720 2924 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe icacls.exe PID 2924 wrote to memory of 2720 2924 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe icacls.exe PID 2924 wrote to memory of 2720 2924 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe icacls.exe PID 2924 wrote to memory of 2720 2924 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe icacls.exe PID 2924 wrote to memory of 2836 2924 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe PID 2924 wrote to memory of 2836 2924 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe PID 2924 wrote to memory of 2836 2924 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe PID 2924 wrote to memory of 2836 2924 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe 2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe"1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2924 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\ef1b9148-c49a-4738-8b4d-4c224b48f575" /deny *S-1-1-0:(OI)(CI)(DE,DC)2⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2720 -
C:\Users\Admin\AppData\Local\Temp\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe" --Admin IsNotAutoStart IsNotTask2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2836
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
MD54ba4d1166baf6d62c549a86268ff3963
SHA1839d1bd68a26bf9138946a30bfa333999154f36c
SHA2565d77478bb2fe9c0aecb41ac0902cf225bc2c8291c006d89cb5da0dd66200eabd
SHA5128656eddc6d9ed1b476c819e30905bbf7f380f4b8f1a000bdf1a65696ad90505b34c81d388b03b8b108eca32480288a20ba286ef41dc12e462659fa4263449252
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD5bc931dcf6689f3e214756691c7befe9f
SHA1b2c5b0289b153d0023945aee62798a73182d8df2
SHA256446771ab43a30081818d4d65a9523dab795b3b2afe10d052927a5a3b8d263a6d
SHA512ab58245defc5c825ca8ff2fd3e2f66a092c36313ade714b2e111e6e4bcf76ad145d05424d1957ea047b190649a0dbed2e802ffb6fa548a1168eafe6d249cd0c1
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD53080162e13fa8df3165464c2b6aaef50
SHA1008276cd63c70ec44a000780579c57e5dd7f1f4d
SHA25677e5b3f443639bead9b124f9bc5eae773225e6880722d74bb65366b415046a8e
SHA5126b9fdc4a87f488378792bdd32c655be7b1283b161596dc99a6c94d67f3dc1219bfad752abc6a78569aa6184abe09d7e5d7fc91fdf7eb8b13c91d7259368d2438
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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C:\Users\Admin\AppData\Local\ef1b9148-c49a-4738-8b4d-4c224b48f575\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe
Filesize1.1MB
MD5c11cf10ac6c3b434565b929ddf84c534
SHA1622e89291e0de0043f1daa5344d8d90fb26e8bb6
SHA2568268b6324c6890e1c93813ebbef9164c962af7be7a67f930c00e7879e1115014
SHA51219c1fc5740ea8d100d8d7df332a21038562a650a2c97e681db6ee19ff17bc56450d69dd96f8f30ae169475856d4fde2fad479acb93ee06e0e63dd9dd1a2a8971