Analysis
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max time kernel
144s -
max time network
152s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
19/01/2023, 02:47
Static task
static1
Behavioral task
behavioral1
Sample
45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe
Resource
win10-20220812-en
General
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Target
45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe
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Size
825KB
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MD5
1e12ef6d811ea006a932860cd74b0282
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SHA1
fcbef26773b2ef3a41bf1a74f4ed59233283321d
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SHA256
45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4
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SHA512
c2c7b3231e5d191edfc4d23e5887eb186caa363be275b2324a21d815fe299d2b66d9f8a8c0bfe5dea2a13ae0329255d97134f4077586f531601fa3bbb44d578a
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SSDEEP
12288:3LyXi858W8cjsNqnJByqO/jd9ub3SD2zT0NrtCH9QNo/5ql/nw51X9mR7COkT/:3LVnumigJ+3AB+9//5inw5t9mR7kT/
Malware Config
Extracted
djvu
http://spaceris.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://spaceris.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: 0635hhsjf
Extracted
vidar
2.1
19
https://t.me/jetbim
https://steamcommunity.com/profiles/76561199471266194
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profile_id
19
Signatures
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Detected Djvu ransomware 9 IoCs
resource yara_rule behavioral1/memory/4936-147-0x00000000022C0000-0x00000000023DB000-memory.dmp family_djvu behavioral1/memory/5068-149-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/5068-150-0x0000000000424141-mapping.dmp family_djvu behavioral1/memory/5068-156-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/5068-217-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/5068-249-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4780-279-0x0000000000424141-mapping.dmp family_djvu behavioral1/memory/4780-339-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4780-488-0x0000000000400000-0x0000000000537000-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 3 IoCs
pid Process 2056 build2.exe 3368 build3.exe 2680 build2.exe -
Loads dropped DLL 2 IoCs
pid Process 2680 build2.exe 2680 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4516 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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\71e64ab0-5bac-4e77-bdf8-48f06f959276\\45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe\" --AutoStart" 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.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 10 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 4936 set thread context of 5068 4936 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 67 PID 3652 set thread context of 4780 3652 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 71 PID 2056 set thread context of 2680 2056 build2.exe 76 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 build2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString build2.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2120 schtasks.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 3700 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 5068 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 5068 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 4780 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 4780 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 2680 build2.exe 2680 build2.exe -
Suspicious use of WriteProcessMemory 50 IoCs
description pid Process procid_target PID 4936 wrote to memory of 5068 4936 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 67 PID 4936 wrote to memory of 5068 4936 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 67 PID 4936 wrote to memory of 5068 4936 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 67 PID 4936 wrote to memory of 5068 4936 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 67 PID 4936 wrote to memory of 5068 4936 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 67 PID 4936 wrote to memory of 5068 4936 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 67 PID 4936 wrote to memory of 5068 4936 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 67 PID 4936 wrote to memory of 5068 4936 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 67 PID 4936 wrote to memory of 5068 4936 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 67 PID 4936 wrote to memory of 5068 4936 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 67 PID 5068 wrote to memory of 4516 5068 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 68 PID 5068 wrote to memory of 4516 5068 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 68 PID 5068 wrote to memory of 4516 5068 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 68 PID 5068 wrote to memory of 3652 5068 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 69 PID 5068 wrote to memory of 3652 5068 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 69 PID 5068 wrote to memory of 3652 5068 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 69 PID 3652 wrote to memory of 4780 3652 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 71 PID 3652 wrote to memory of 4780 3652 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 71 PID 3652 wrote to memory of 4780 3652 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 71 PID 3652 wrote to memory of 4780 3652 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 71 PID 3652 wrote to memory of 4780 3652 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 71 PID 3652 wrote to memory of 4780 3652 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 71 PID 3652 wrote to memory of 4780 3652 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 71 PID 3652 wrote to memory of 4780 3652 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 71 PID 3652 wrote to memory of 4780 3652 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 71 PID 3652 wrote to memory of 4780 3652 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 71 PID 4780 wrote to memory of 2056 4780 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 72 PID 4780 wrote to memory of 2056 4780 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 72 PID 4780 wrote to memory of 2056 4780 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 72 PID 4780 wrote to memory of 3368 4780 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 73 PID 4780 wrote to memory of 3368 4780 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 73 PID 4780 wrote to memory of 3368 4780 45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe 73 PID 3368 wrote to memory of 2120 3368 build3.exe 74 PID 3368 wrote to memory of 2120 3368 build3.exe 74 PID 3368 wrote to memory of 2120 3368 build3.exe 74 PID 2056 wrote to memory of 2680 2056 build2.exe 76 PID 2056 wrote to memory of 2680 2056 build2.exe 76 PID 2056 wrote to memory of 2680 2056 build2.exe 76 PID 2056 wrote to memory of 2680 2056 build2.exe 76 PID 2056 wrote to memory of 2680 2056 build2.exe 76 PID 2056 wrote to memory of 2680 2056 build2.exe 76 PID 2056 wrote to memory of 2680 2056 build2.exe 76 PID 2056 wrote to memory of 2680 2056 build2.exe 76 PID 2056 wrote to memory of 2680 2056 build2.exe 76 PID 2680 wrote to memory of 4528 2680 build2.exe 79 PID 2680 wrote to memory of 4528 2680 build2.exe 79 PID 2680 wrote to memory of 4528 2680 build2.exe 79 PID 4528 wrote to memory of 3700 4528 cmd.exe 81 PID 4528 wrote to memory of 3700 4528 cmd.exe 81 PID 4528 wrote to memory of 3700 4528 cmd.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe"C:\Users\Admin\AppData\Local\Temp\45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4936 -
C:\Users\Admin\AppData\Local\Temp\45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe"C:\Users\Admin\AppData\Local\Temp\45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5068 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\71e64ab0-5bac-4e77-bdf8-48f06f959276" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4516
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C:\Users\Admin\AppData\Local\Temp\45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe"C:\Users\Admin\AppData\Local\Temp\45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3652 -
C:\Users\Admin\AppData\Local\Temp\45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe"C:\Users\Admin\AppData\Local\Temp\45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4780 -
C:\Users\Admin\AppData\Local\ae227977-2232-4b43-882d-b111d8927e29\build2.exe"C:\Users\Admin\AppData\Local\ae227977-2232-4b43-882d-b111d8927e29\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2056 -
C:\Users\Admin\AppData\Local\ae227977-2232-4b43-882d-b111d8927e29\build2.exe"C:\Users\Admin\AppData\Local\ae227977-2232-4b43-882d-b111d8927e29\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2680 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\ae227977-2232-4b43-882d-b111d8927e29\build2.exe" & exit7⤵
- Suspicious use of WriteProcessMemory
PID:4528 -
C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
PID:3700
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C:\Users\Admin\AppData\Local\ae227977-2232-4b43-882d-b111d8927e29\build3.exe"C:\Users\Admin\AppData\Local\ae227977-2232-4b43-882d-b111d8927e29\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3368 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"6⤵
- Creates scheduled task(s)
PID:2120
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize2KB
MD5f668969af5f91ebc063c10916957b5f0
SHA1154f8af4e956880f374b7d9ca0a59be37d979eba
SHA256971130ecefcbbbf90c16c913c8d56cb3bb9765edaf09490c6289dcd7faed47f0
SHA512696d0361b41ba4db1b7ef8790e3449e9ab89f0ba146aefefbefc5afff3ed758dcf5cbc64311b2228bc97ef09771614c32d9a8d5c56a9322dfbcf1a5b2702da95
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize1KB
MD5c2c1a9b0cafc44a493ecf30b565db71f
SHA159f89c9d3a7d0064b7c0776455a19da9f8284f58
SHA2561e6b79c51887ec42c5358fc37f1157a77163657c25b2b27c68a5ef1baff4fce1
SHA512eec0b3dc7ed29e03dc3b3cc560d56ed777bb2ffab37397dae9a0a0a68990d3277e9973c803bf44e32ccab25a05a928c66be5d291808071779b1b47f288309fea
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD51d58fbe36eeccadff925676c5c4320ad
SHA14db49fa3e44edb5a106f0c256b826b2116fbd2af
SHA2561cc88de494c194ab7429786a3022c8fc9eb9c3a75572f8f4bde11d732863b65e
SHA512d47dfa08957b3ff0201233d66e2e401dbebd5c9ed4ddfdfc85a8024c4f182c08ba5a348a20d7fc002ac0d57ceb6271ec9dd19215b0394303c0cc2ddb79c93a50
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD5efe76e05abe3a4beaee9ce17515674ce
SHA1573a10033fff61040a1a7d7579d021075b44b268
SHA2566d683d6a03a559bf7a2622b264e780d8de75e28fc94f2da12adedbfcd5db1638
SHA5127663ff40624733790b259423ec055b41326b2f3456b558f4f6e06af4de4429639413f71ed58219075ee1ad6d94c6d1acd074196a4270ad24cb0ec51ddad2a41d
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C:\Users\Admin\AppData\Local\71e64ab0-5bac-4e77-bdf8-48f06f959276\45260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4.exe
Filesize825KB
MD51e12ef6d811ea006a932860cd74b0282
SHA1fcbef26773b2ef3a41bf1a74f4ed59233283321d
SHA25645260d77240430192cdb8a7fed25b5c72d46bdab569f046beb5528e6b9d8efb4
SHA512c2c7b3231e5d191edfc4d23e5887eb186caa363be275b2324a21d815fe299d2b66d9f8a8c0bfe5dea2a13ae0329255d97134f4077586f531601fa3bbb44d578a
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Filesize
343KB
MD57321ac833e240c7d1a799184c32d4bb6
SHA1cd5233a64aaf61f63c97241b2d4d3f4c4af2f52c
SHA25643a80ac218836ddd131f7377d0bef4fca5c3a1eb3fe05a63c69ce283dc32931e
SHA512ad89c702c0dd23318c3c7805613707a6530b813c0b4e68afa22c11ef6237ec19455b1609e0fd276a8c577fb5aea51338a472561bdcda747bc1b636156ba722a4
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Filesize
343KB
MD57321ac833e240c7d1a799184c32d4bb6
SHA1cd5233a64aaf61f63c97241b2d4d3f4c4af2f52c
SHA25643a80ac218836ddd131f7377d0bef4fca5c3a1eb3fe05a63c69ce283dc32931e
SHA512ad89c702c0dd23318c3c7805613707a6530b813c0b4e68afa22c11ef6237ec19455b1609e0fd276a8c577fb5aea51338a472561bdcda747bc1b636156ba722a4
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Filesize
343KB
MD57321ac833e240c7d1a799184c32d4bb6
SHA1cd5233a64aaf61f63c97241b2d4d3f4c4af2f52c
SHA25643a80ac218836ddd131f7377d0bef4fca5c3a1eb3fe05a63c69ce283dc32931e
SHA512ad89c702c0dd23318c3c7805613707a6530b813c0b4e68afa22c11ef6237ec19455b1609e0fd276a8c577fb5aea51338a472561bdcda747bc1b636156ba722a4
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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Filesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66