Analysis
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max time kernel
292s -
max time network
253s -
platform
windows10-1703_x64 -
resource
win10-20230831-en -
resource tags
arch:x64arch:x86image:win10-20230831-enlocale:en-usos:windows10-1703-x64system -
submitted
03-09-2023 22:04
Static task
static1
Behavioral task
behavioral1
Sample
ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe
Resource
win10-20230831-en
General
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Target
ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe
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Size
715KB
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MD5
4c23dfab585af65fdcc42271bf168446
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SHA1
91939cd29c0fffd69bf9ce7debec9e52dbb0cc1d
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SHA256
ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346
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SHA512
05adaea203abfca9a9995af8b3ee70b779aab4d484cf8664fb93f183c3b08d1c47a6c8a99d00590245c22fac391f7d11df9e23aa2f156763085650d48509fdad
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SSDEEP
12288:x+Ddul9e1zx21K+43HDK4mOBo29jclFt101nXmFtpnlg9VT0stU9r9J:x2ulQ1V21K+KG4mgjcn01ne7W9VTzmr
Malware Config
Extracted
djvu
http://zexeq.com/raud/get.php
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extension
.nztt
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offline_id
fe7vbai057v1PzegcJrFdG7DjT3mL5gUtMQkLrt1
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payload_url
http://colisumy.com/dl/build2.exe
http://zexeq.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-E4b0Td2MBH 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: 0772JOsie
Extracted
vidar
5.4
25f5344bfcb62e75b7946c3a681aec54
https://t.me/vogogor
https://steamcommunity.com/profiles/76561199545993403
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profile_id_v2
25f5344bfcb62e75b7946c3a681aec54
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.2.13 (KHTML, like Gecko) Version/16.5.2 Safari/605.2.13
Signatures
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Detected Djvu ransomware 17 IoCs
resource yara_rule behavioral2/memory/3836-2-0x00000000031F0000-0x000000000330B000-memory.dmp family_djvu behavioral2/memory/220-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/220-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/220-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/220-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/220-17-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2500-20-0x0000000003080000-0x000000000311A000-memory.dmp family_djvu behavioral2/memory/3652-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3652-23-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3652-24-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3652-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3652-30-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3652-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3652-37-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3652-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3652-53-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3652-64-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 4392 build2.exe 1312 build2.exe -
Loads dropped DLL 2 IoCs
pid Process 1312 build2.exe 1312 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4760 icacls.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-307324125-4249701739-3835089310-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\c2e22fe2-48a3-4a0f-8294-808d37fda727\\ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe\" --AutoStart" ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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 1 api.2ip.ua 2 api.2ip.ua 13 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 3836 set thread context of 220 3836 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 69 PID 2500 set thread context of 3652 2500 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 73 PID 4392 set thread context of 1312 4392 build2.exe 75 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString build2.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 build2.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 4380 timeout.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 220 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 220 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 3652 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 3652 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 1312 build2.exe 1312 build2.exe 1312 build2.exe 1312 build2.exe -
Suspicious use of WriteProcessMemory 44 IoCs
description pid Process procid_target PID 3836 wrote to memory of 220 3836 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 69 PID 3836 wrote to memory of 220 3836 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 69 PID 3836 wrote to memory of 220 3836 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 69 PID 3836 wrote to memory of 220 3836 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 69 PID 3836 wrote to memory of 220 3836 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 69 PID 3836 wrote to memory of 220 3836 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 69 PID 3836 wrote to memory of 220 3836 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 69 PID 3836 wrote to memory of 220 3836 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 69 PID 3836 wrote to memory of 220 3836 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 69 PID 3836 wrote to memory of 220 3836 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 69 PID 220 wrote to memory of 4760 220 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 70 PID 220 wrote to memory of 4760 220 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 70 PID 220 wrote to memory of 4760 220 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 70 PID 220 wrote to memory of 2500 220 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 71 PID 220 wrote to memory of 2500 220 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 71 PID 220 wrote to memory of 2500 220 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 71 PID 2500 wrote to memory of 3652 2500 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 73 PID 2500 wrote to memory of 3652 2500 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 73 PID 2500 wrote to memory of 3652 2500 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 73 PID 2500 wrote to memory of 3652 2500 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 73 PID 2500 wrote to memory of 3652 2500 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 73 PID 2500 wrote to memory of 3652 2500 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 73 PID 2500 wrote to memory of 3652 2500 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 73 PID 2500 wrote to memory of 3652 2500 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 73 PID 2500 wrote to memory of 3652 2500 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 73 PID 2500 wrote to memory of 3652 2500 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 73 PID 3652 wrote to memory of 4392 3652 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 74 PID 3652 wrote to memory of 4392 3652 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 74 PID 3652 wrote to memory of 4392 3652 ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe 74 PID 4392 wrote to memory of 1312 4392 build2.exe 75 PID 4392 wrote to memory of 1312 4392 build2.exe 75 PID 4392 wrote to memory of 1312 4392 build2.exe 75 PID 4392 wrote to memory of 1312 4392 build2.exe 75 PID 4392 wrote to memory of 1312 4392 build2.exe 75 PID 4392 wrote to memory of 1312 4392 build2.exe 75 PID 4392 wrote to memory of 1312 4392 build2.exe 75 PID 4392 wrote to memory of 1312 4392 build2.exe 75 PID 4392 wrote to memory of 1312 4392 build2.exe 75 PID 1312 wrote to memory of 3660 1312 build2.exe 77 PID 1312 wrote to memory of 3660 1312 build2.exe 77 PID 1312 wrote to memory of 3660 1312 build2.exe 77 PID 3660 wrote to memory of 4380 3660 cmd.exe 79 PID 3660 wrote to memory of 4380 3660 cmd.exe 79 PID 3660 wrote to memory of 4380 3660 cmd.exe 79
Processes
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C:\Users\Admin\AppData\Local\Temp\ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe"C:\Users\Admin\AppData\Local\Temp\ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3836 -
C:\Users\Admin\AppData\Local\Temp\ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe"C:\Users\Admin\AppData\Local\Temp\ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:220 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\c2e22fe2-48a3-4a0f-8294-808d37fda727" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4760
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C:\Users\Admin\AppData\Local\Temp\ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe"C:\Users\Admin\AppData\Local\Temp\ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2500 -
C:\Users\Admin\AppData\Local\Temp\ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe"C:\Users\Admin\AppData\Local\Temp\ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3652 -
C:\Users\Admin\AppData\Local\8f19697c-c281-47f6-92c1-8382ff220572\build2.exe"C:\Users\Admin\AppData\Local\8f19697c-c281-47f6-92c1-8382ff220572\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4392 -
C:\Users\Admin\AppData\Local\8f19697c-c281-47f6-92c1-8382ff220572\build2.exe"C:\Users\Admin\AppData\Local\8f19697c-c281-47f6-92c1-8382ff220572\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1312 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\8f19697c-c281-47f6-92c1-8382ff220572\build2.exe" & exit7⤵
- Suspicious use of WriteProcessMemory
PID:3660 -
C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
PID:4380
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize2KB
MD5b8a5a46aaa9a6058de302e5cb8a86e07
SHA157e3bd01bad905d350f58e73567f195ed7a1e85a
SHA256547e4e4f2a53b6281417420b7e8f42fd7e57b2186629c65e8de6df1f0bcf4b37
SHA512f6ce11d5f61ecc8925b55691b1ea16a2420ddf8b86e0267633c95df642949dd684c673089634a621084688a4a36ae15ec5f1a6b4e199100ca328bf268bb9e8d1
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize1KB
MD5137e0b4840f8125ba9ba35f5e35a756e
SHA1d0b462994fcea1803b01b516c97fe2c93f59f934
SHA256f26683ff85626d7ef4137cebe2d9d4cb0dfcb4b7d80bc1348e3fbac919fa04d9
SHA512660b7cf0fbc09d0fc3071e502545933f094d2f6462904db07d3810a3cca5ef30dba5742d67634c3d63da748e944cc375369fe1afb4ae13d073f88724dedc5ec5
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD5a31cf5af2ea334c70109fc8d7ba0adb5
SHA19bff96a123461cdd76c2232a0d864e5a85e6e9c2
SHA256bb57888be7eed476e84c7b44f53ababa4a895ff27370b2d24bac6f0588567425
SHA512da5fc25db8891fe8a19b354aeb9d7ca9d8f9f5d1f3d642589bf7b2b3e2ee3bdfca4a8a5173f2300626f470714d77273c6b35ad37a6f0ba929549b14b5a164f14
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD5e6c6ce0b4c1ac5ac4054772f4f985336
SHA140c9b959b2f091c2e1594f0b3c64676bd8f075b6
SHA2569ab3bbc76745b235dc67fa9609b9e9e9d37b2498d1e9e1f85bb563f6afc6c85a
SHA512106709e57362402c95a6fb7d0e3431b6307c0d6aeb7c5c4330eba57cd254c0c231251249d4fd59d562a29a559302251552491afd6a3346660358a206f48ed415
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Filesize
396KB
MD5a3d4e0b89f4210c0ad7d8df63ff21876
SHA106ae277ba8c0b747df2498add0fdaa3e8fbe5ebb
SHA2563609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5
SHA512dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a
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Filesize
396KB
MD5a3d4e0b89f4210c0ad7d8df63ff21876
SHA106ae277ba8c0b747df2498add0fdaa3e8fbe5ebb
SHA2563609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5
SHA512dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a
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Filesize
396KB
MD5a3d4e0b89f4210c0ad7d8df63ff21876
SHA106ae277ba8c0b747df2498add0fdaa3e8fbe5ebb
SHA2563609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5
SHA512dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a
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C:\Users\Admin\AppData\Local\c2e22fe2-48a3-4a0f-8294-808d37fda727\ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346.exe
Filesize715KB
MD54c23dfab585af65fdcc42271bf168446
SHA191939cd29c0fffd69bf9ce7debec9e52dbb0cc1d
SHA256ea60953547e9217b868f5e1baaea7c3209c9d6cefe76773f479528d84de91346
SHA51205adaea203abfca9a9995af8b3ee70b779aab4d484cf8664fb93f183c3b08d1c47a6c8a99d00590245c22fac391f7d11df9e23aa2f156763085650d48509fdad
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571