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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
20/12/2024, 19:25
Static task
static1
Behavioral task
behavioral1
Sample
04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe
Resource
win10v2004-20241007-en
General
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Target
04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe
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Size
876KB
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MD5
41b0583e986bd5b29056fe47535545e3
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SHA1
f7e44e9d530f70621a47e9f850da1bb5e2871960
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SHA256
04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6
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SHA512
beba9665b1635d2b07b726552fa23637a20cca144787833bfd77aa83cfa75f12fc4e2ea632efd08a6403eb6b646326d8f94fac282a81f05a929231e7f8ce4782
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SSDEEP
12288:nPmDfAmqboRKh2b/fD3E735ylKz8MLzKs43aK55d6B4MXR+EQYV6nm/PfP6ultXm:nq7xRKhE/rEslmTLa55d6ShEq8PTc
Malware Config
Extracted
djvu
http://tzgl.org/fhsgtsspen6/get.php
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extension
.yoqs
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offline_id
Gy1ekaHyw11ZDr43dKFxYo9wA3NxFYOUEc6Pwvt1
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payload_url
http://lencu.top/dl/build2.exe
http://tzgl.org/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-veBR09KNyi 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: 0380UIhfSd
Signatures
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Detected Djvu ransomware 15 IoCs
resource yara_rule behavioral1/memory/2208-2-0x0000000001E70000-0x0000000001F8B000-memory.dmp family_djvu behavioral1/memory/1832-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1832-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1832-9-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1832-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1068-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1068-37-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1068-51-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1068-52-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1068-53-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1068-57-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1068-66-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1068-69-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1068-68-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1068-70-0x0000000000400000-0x0000000000537000-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 2756 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\\fab3dfe1-b6c8-4f0d-b20e-3b00cab167a1\\04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe\" --AutoStart" 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.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 9 api.2ip.ua 4 api.2ip.ua 5 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2208 set thread context of 1832 2208 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 31 PID 2968 set thread context of 1068 2968 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 35 -
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 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1832 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 1832 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 1068 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 1068 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2208 wrote to memory of 1832 2208 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 31 PID 2208 wrote to memory of 1832 2208 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 31 PID 2208 wrote to memory of 1832 2208 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 31 PID 2208 wrote to memory of 1832 2208 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 31 PID 2208 wrote to memory of 1832 2208 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 31 PID 2208 wrote to memory of 1832 2208 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 31 PID 2208 wrote to memory of 1832 2208 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 31 PID 2208 wrote to memory of 1832 2208 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 31 PID 2208 wrote to memory of 1832 2208 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 31 PID 2208 wrote to memory of 1832 2208 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 31 PID 2208 wrote to memory of 1832 2208 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 31 PID 1832 wrote to memory of 2756 1832 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 33 PID 1832 wrote to memory of 2756 1832 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 33 PID 1832 wrote to memory of 2756 1832 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 33 PID 1832 wrote to memory of 2756 1832 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 33 PID 1832 wrote to memory of 2968 1832 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 34 PID 1832 wrote to memory of 2968 1832 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 34 PID 1832 wrote to memory of 2968 1832 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 34 PID 1832 wrote to memory of 2968 1832 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 34 PID 2968 wrote to memory of 1068 2968 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 35 PID 2968 wrote to memory of 1068 2968 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 35 PID 2968 wrote to memory of 1068 2968 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 35 PID 2968 wrote to memory of 1068 2968 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 35 PID 2968 wrote to memory of 1068 2968 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 35 PID 2968 wrote to memory of 1068 2968 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 35 PID 2968 wrote to memory of 1068 2968 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 35 PID 2968 wrote to memory of 1068 2968 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 35 PID 2968 wrote to memory of 1068 2968 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 35 PID 2968 wrote to memory of 1068 2968 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 35 PID 2968 wrote to memory of 1068 2968 04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe"C:\Users\Admin\AppData\Local\Temp\04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2208 -
C:\Users\Admin\AppData\Local\Temp\04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe"C:\Users\Admin\AppData\Local\Temp\04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1832 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\fab3dfe1-b6c8-4f0d-b20e-3b00cab167a1" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2756
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C:\Users\Admin\AppData\Local\Temp\04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe"C:\Users\Admin\AppData\Local\Temp\04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2968 -
C:\Users\Admin\AppData\Local\Temp\04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe"C:\Users\Admin\AppData\Local\Temp\04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1068
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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
MD57feace2a9dfb6042c2fbe5e070c64f33
SHA134f95b3d020fa0818abf035abcc1e73b5c35ab75
SHA256fbe5cd886add8c51e23badda08ff550878b89ec53fbcfa5967bb6302079c8518
SHA51203bcc16a502b36c373e5f07ac20168c2b6fc814edbaf07a505ce0b9b32c648f788e6fd0df28d18ba6a9df9b3273fad4ae78f20e5af9139f34397eb8e4f522bb2
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD56c339e60b61892a94577776f7d2d7a45
SHA156ca63987705c4ee1022824adc56b1e4579aa6f6
SHA256ba6e3ced5ca8f497537d502660db9e16c3b0b694e9ebbbad4ddf5b44c6e7bae0
SHA512339fdc2672802f2616fc7ac52b639a2f9e583af5c0b98d96db3072f900f3ebb05df0a56c7f238e8ff83a2632363e57dca3f51b889ace511070ab001be8f1a92d
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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C:\Users\Admin\AppData\Local\fab3dfe1-b6c8-4f0d-b20e-3b00cab167a1\04672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6.exe
Filesize876KB
MD541b0583e986bd5b29056fe47535545e3
SHA1f7e44e9d530f70621a47e9f850da1bb5e2871960
SHA25604672ac92929c1b2589702f4c0dac7e18f0a2858542809a9c88014826a6df3f6
SHA512beba9665b1635d2b07b726552fa23637a20cca144787833bfd77aa83cfa75f12fc4e2ea632efd08a6403eb6b646326d8f94fac282a81f05a929231e7f8ce4782