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Analysis
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max time kernel
145s -
max time network
132s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
22/12/2024, 07:41
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
Resource
win10v2004-20241007-en
General
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Target
JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
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Size
833KB
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MD5
76986b9982ec8ce988467ea9b5c15734
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SHA1
7ec7651244c50b5bc9445540347475104da96417
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SHA256
3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f
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SHA512
8142d5e0a7837733e1d71298588613b31f6c20a340365d6f34e77131e98882933ab29624c65b7c44b4279bf4fc3fd02598c1d185f97eeaddbf4ff5237a847c18
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SSDEEP
12288:QXSm4PokKKNZ00nOf9sgI+LE0Qas8g28P89M1sNaOamKBJYunnwR:wSnKoZpkLLrP5M0YrJzwR
Malware Config
Extracted
djvu
http://fuyt.org/test1/get.php
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extension
.wdlo
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offline_id
i0fXrUHVihm5xsI9Icg243YMPJqd748Ocimkyjt1
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payload_url
http://zerit.top/dl/build2.exe
http://fuyt.org/files/1/build3.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 15 IoCs
resource yara_rule behavioral1/memory/3068-2-0x0000000001DC0000-0x0000000001EDB000-memory.dmp family_djvu behavioral1/memory/2628-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2628-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2628-9-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2628-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2644-37-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2644-38-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2644-51-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2644-52-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2644-53-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2644-57-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2644-66-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2644-68-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2644-69-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2644-70-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Djvu family
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Modifies file permissions 1 TTPs 1 IoCs
pid Process 2688 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\e39fc591-39ba-4c17-91a2-fd5c4b8d5404\\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe\" --AutoStart" JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.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 9 api.2ip.ua 3 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3068 set thread context of 2628 3068 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 30 PID 2772 set thread context of 2644 2772 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 33 -
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 5 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 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2628 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 2628 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 2644 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 2644 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 3068 wrote to memory of 2628 3068 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 30 PID 3068 wrote to memory of 2628 3068 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 30 PID 3068 wrote to memory of 2628 3068 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 30 PID 3068 wrote to memory of 2628 3068 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 30 PID 3068 wrote to memory of 2628 3068 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 30 PID 3068 wrote to memory of 2628 3068 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 30 PID 3068 wrote to memory of 2628 3068 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 30 PID 3068 wrote to memory of 2628 3068 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 30 PID 3068 wrote to memory of 2628 3068 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 30 PID 3068 wrote to memory of 2628 3068 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 30 PID 3068 wrote to memory of 2628 3068 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 30 PID 2628 wrote to memory of 2688 2628 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 31 PID 2628 wrote to memory of 2688 2628 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 31 PID 2628 wrote to memory of 2688 2628 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 31 PID 2628 wrote to memory of 2688 2628 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 31 PID 2628 wrote to memory of 2772 2628 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 32 PID 2628 wrote to memory of 2772 2628 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 32 PID 2628 wrote to memory of 2772 2628 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 32 PID 2628 wrote to memory of 2772 2628 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 32 PID 2772 wrote to memory of 2644 2772 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 33 PID 2772 wrote to memory of 2644 2772 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 33 PID 2772 wrote to memory of 2644 2772 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 33 PID 2772 wrote to memory of 2644 2772 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 33 PID 2772 wrote to memory of 2644 2772 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 33 PID 2772 wrote to memory of 2644 2772 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 33 PID 2772 wrote to memory of 2644 2772 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 33 PID 2772 wrote to memory of 2644 2772 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 33 PID 2772 wrote to memory of 2644 2772 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 33 PID 2772 wrote to memory of 2644 2772 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 33 PID 2772 wrote to memory of 2644 2772 JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3068 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2628 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\e39fc591-39ba-4c17-91a2-fd5c4b8d5404" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2688
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2644
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD567e486b2f148a3fca863728242b6273e
SHA1452a84c183d7ea5b7c015b597e94af8eef66d44a
SHA256facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb
SHA512d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e
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Filesize
436B
MD5971c514f84bba0785f80aa1c23edfd79
SHA1732acea710a87530c6b08ecdf32a110d254a54c8
SHA256f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895
SHA51243dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize174B
MD5ee8c1a218ec55b66b0d547175b09134e
SHA1d956e2309be644583a129f0d05a54ac1b8333507
SHA25656f47257df9228fd196c898ea16341c8d0688943831da2201ddf166b954a1619
SHA512c644f9dcf0c12f7f27b5978ca966863257669dc97e8cf0c561e485d63a802d55c53f86cd6a718da9fa2b5a954212701d58d10d06a2adaad92ad0ef4ca264dc69
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD59b5a6843c7b007fac3e1faf6bb576a81
SHA13d11bb01d0e8c413a2e9302df26490e2c2b06cfa
SHA256e57f847124fa616ce275d6a9b980e745cb5bd4828ebe0f7e81ed6dc93dbda56f
SHA512a2dd2e0159882c0e52fd1667d9b10963d319c7e27045a2c084ce08c7d41750779a054daf6e76315e97e67a1ba6f11e5cbbbfefe5a2b0926175d1452782a690a6
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5bca4bfbebbc8a167b33e6a003fa00bd8
SHA1fd28b3ed34d4ad0d1f0ec78d1b0d495cb58d704f
SHA25639d0f85f93f4d9d19637c4f690b76bdaebd94c1fd49594df22ebba71c231eb72
SHA5122526edaef27544cf5a5f199e606647244f7874744fe661a6b01179b70f34f39f8ba58b1355c9d2df875a5738343aabe3890249cf425cb7219b93a2e771ac2c3c
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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C:\Users\Admin\AppData\Local\e39fc591-39ba-4c17-91a2-fd5c4b8d5404\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
Filesize833KB
MD576986b9982ec8ce988467ea9b5c15734
SHA17ec7651244c50b5bc9445540347475104da96417
SHA2563981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f
SHA5128142d5e0a7837733e1d71298588613b31f6c20a340365d6f34e77131e98882933ab29624c65b7c44b4279bf4fc3fd02598c1d185f97eeaddbf4ff5237a847c18