Analysis
-
max time kernel
71s -
max time network
133s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
03-02-2023 08:23
Static task
static1
Behavioral task
behavioral1
Sample
c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe
Resource
win10-20220812-en
General
-
Target
c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe
-
Size
794KB
-
MD5
94299ea2cfd6cf8acc8a8c8d7edc7ada
-
SHA1
4f320731b2dbb2539363f008408c04a26c81a3c1
-
SHA256
c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1
-
SHA512
32c16e8fddae30b66902c39b4f657592f24a8e419db0ecdd4cc52a2184f06c6872cf567f1a833b7724f6b3f51f50b5f5e3bfdf3ca50aa0a3d708b0d5a056f56e
-
SSDEEP
12288:hT3vXG2YzOO+1a49Ba054sb4qUjl2kELVSs42ANDvp3FP6OjP4P1Oyh:hju2DOma4PakkEF42ANVV6OjP49T
Malware Config
Extracted
djvu
http://drampik.com/test1/get.php
-
extension
.erqw
-
offline_id
xVB7l5LcUtDGyghMgGsTvebrKc0RGgDXlN1BoKt1
-
payload_url
http://uaery.top/dl/build2.exe
http://drampik.com/files/1/build3.exe
-
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-8pCGyFnOj6 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: 0639JOsie
Extracted
vidar
2.3
19
https://t.me/mantarlars
https://steamcommunity.com/profiles/76561199474840123
-
profile_id
19
Signatures
-
Detected Djvu ransomware 9 IoCs
resource yara_rule behavioral1/memory/2456-143-0x0000000002410000-0x000000000252B000-memory.dmp family_djvu behavioral1/memory/2992-145-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2992-146-0x0000000000424141-mapping.dmp family_djvu behavioral1/memory/2992-152-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2992-202-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2992-245-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3876-272-0x0000000000424141-mapping.dmp family_djvu behavioral1/memory/3876-346-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3876-497-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
-
Downloads MZ/PE file
-
Executes dropped EXE 2 IoCs
pid Process 4932 build2.exe 4844 build2.exe -
Loads dropped DLL 2 IoCs
pid Process 4844 build2.exe 4844 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 2596 icacls.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
-
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\d44036ef-17e8-4568-a539-db6f20ea049a\\c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe\" --AutoStart" c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
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 9 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 2456 set thread context of 2992 2456 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 66 PID 1600 set thread context of 3876 1600 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 70 PID 4932 set thread context of 4844 4932 build2.exe 72 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
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 3088 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2992 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 2992 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 3876 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 3876 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 4844 build2.exe 4844 build2.exe -
Suspicious use of WriteProcessMemory 44 IoCs
description pid Process procid_target PID 2456 wrote to memory of 2992 2456 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 66 PID 2456 wrote to memory of 2992 2456 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 66 PID 2456 wrote to memory of 2992 2456 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 66 PID 2456 wrote to memory of 2992 2456 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 66 PID 2456 wrote to memory of 2992 2456 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 66 PID 2456 wrote to memory of 2992 2456 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 66 PID 2456 wrote to memory of 2992 2456 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 66 PID 2456 wrote to memory of 2992 2456 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 66 PID 2456 wrote to memory of 2992 2456 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 66 PID 2456 wrote to memory of 2992 2456 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 66 PID 2992 wrote to memory of 2596 2992 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 67 PID 2992 wrote to memory of 2596 2992 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 67 PID 2992 wrote to memory of 2596 2992 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 67 PID 2992 wrote to memory of 1600 2992 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 68 PID 2992 wrote to memory of 1600 2992 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 68 PID 2992 wrote to memory of 1600 2992 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 68 PID 1600 wrote to memory of 3876 1600 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 70 PID 1600 wrote to memory of 3876 1600 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 70 PID 1600 wrote to memory of 3876 1600 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 70 PID 1600 wrote to memory of 3876 1600 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 70 PID 1600 wrote to memory of 3876 1600 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 70 PID 1600 wrote to memory of 3876 1600 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 70 PID 1600 wrote to memory of 3876 1600 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 70 PID 1600 wrote to memory of 3876 1600 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 70 PID 1600 wrote to memory of 3876 1600 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 70 PID 1600 wrote to memory of 3876 1600 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 70 PID 3876 wrote to memory of 4932 3876 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 71 PID 3876 wrote to memory of 4932 3876 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 71 PID 3876 wrote to memory of 4932 3876 c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe 71 PID 4932 wrote to memory of 4844 4932 build2.exe 72 PID 4932 wrote to memory of 4844 4932 build2.exe 72 PID 4932 wrote to memory of 4844 4932 build2.exe 72 PID 4932 wrote to memory of 4844 4932 build2.exe 72 PID 4932 wrote to memory of 4844 4932 build2.exe 72 PID 4932 wrote to memory of 4844 4932 build2.exe 72 PID 4932 wrote to memory of 4844 4932 build2.exe 72 PID 4932 wrote to memory of 4844 4932 build2.exe 72 PID 4932 wrote to memory of 4844 4932 build2.exe 72 PID 4844 wrote to memory of 2464 4844 build2.exe 74 PID 4844 wrote to memory of 2464 4844 build2.exe 74 PID 4844 wrote to memory of 2464 4844 build2.exe 74 PID 2464 wrote to memory of 3088 2464 cmd.exe 76 PID 2464 wrote to memory of 3088 2464 cmd.exe 76 PID 2464 wrote to memory of 3088 2464 cmd.exe 76
Processes
-
C:\Users\Admin\AppData\Local\Temp\c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe"C:\Users\Admin\AppData\Local\Temp\c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2456 -
C:\Users\Admin\AppData\Local\Temp\c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe"C:\Users\Admin\AppData\Local\Temp\c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2992 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\d44036ef-17e8-4568-a539-db6f20ea049a" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:2596
-
-
C:\Users\Admin\AppData\Local\Temp\c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe"C:\Users\Admin\AppData\Local\Temp\c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1600 -
C:\Users\Admin\AppData\Local\Temp\c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe"C:\Users\Admin\AppData\Local\Temp\c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3876 -
C:\Users\Admin\AppData\Local\b1357dac-cd69-47f2-b608-802a936ede14\build2.exe"C:\Users\Admin\AppData\Local\b1357dac-cd69-47f2-b608-802a936ede14\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4932 -
C:\Users\Admin\AppData\Local\b1357dac-cd69-47f2-b608-802a936ede14\build2.exe"C:\Users\Admin\AppData\Local\b1357dac-cd69-47f2-b608-802a936ede14\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4844 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\b1357dac-cd69-47f2-b608-802a936ede14\build2.exe" & exit7⤵
- Suspicious use of WriteProcessMemory
PID:2464 -
C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
PID:3088
-
-
-
-
-
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize2KB
MD59e7d80e73e3a4b89ac438893d100967f
SHA1442541c67c4ba20543b28aad7d3b42f17019f283
SHA256edb2d84b7720677e78684a5af4c1c79d25b1f5146c9557d6ec552467adf6a6c5
SHA5128fda4a7061726ddd43f48ec041d951e57cf97cdf85af23fe1c32add5e6f4a80a94724680d8fcac11ce70bf7c2f11214dc15e54ba3b19cd2a59a264b24c6524df
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize1KB
MD55b9ae1f8cf545e81c24ca6fc67cbe6b2
SHA1fe01128033688d9e9745f32714d084b7a8b15f88
SHA256fa0576b46c519e6e72adadbd32aa53e1c6f044e5466da4fe643496a362bf72fd
SHA512c249eeef9a2002db49ba196797fd0b63a4afc0312b2857cdeef9a8ea2f3f0ba621334dbe4b8356c7cb58ff537fe2f3d9eb5e1f671c8d620fdc02b086860917ae
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD582ade3d0be630ca3b451ccc545106568
SHA1d449b4621057613052701c9cad852be008d4d844
SHA2563a487f835f25f7655a7d9007ab16dcfabe253249ae5c6aa718d81e72138f77d4
SHA512258b2ee3bfa4898a52780f39c70c66738a9011fe7eecad5fea0b9fd1c35ad351402b7760f4637297a61435f305e2e2854ae75f81a2293bf68e46a357d1c4c3a2
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD5342e7dedfabdc0f5d0aae6edccafb9fe
SHA14688ef4427a5d163ba41dc27f5e77c9a3db6845f
SHA256def715d48598e025f5bb0eeff3dfb028298a5da455a79a261aa6e535f0ca6691
SHA512b8db5235e027c608b03e977b2cd7485b213c810d88f983c53d55def1ae094887e8d9cb61e52b234a766bd982df71d2c98a1ead699480933b944c5ad6749eceaf
-
Filesize
299KB
MD5cacd37281c5470cfc13e6db90942d371
SHA1af9e1477a51858376bd113f8247b4f6ff1b94445
SHA256fe8dd23da7d898858d6a280cd58d4ca332f958a4f9562bf8f364dc4340f9c34c
SHA512cfe21519f4c55583c3c68592812dbfa1170279de5e20b3da6d49f66957e373288650bd8c1a6afcd6d70255356674579b40c1b75a7c154fcc705cc89056ff8d67
-
Filesize
299KB
MD5cacd37281c5470cfc13e6db90942d371
SHA1af9e1477a51858376bd113f8247b4f6ff1b94445
SHA256fe8dd23da7d898858d6a280cd58d4ca332f958a4f9562bf8f364dc4340f9c34c
SHA512cfe21519f4c55583c3c68592812dbfa1170279de5e20b3da6d49f66957e373288650bd8c1a6afcd6d70255356674579b40c1b75a7c154fcc705cc89056ff8d67
-
Filesize
299KB
MD5cacd37281c5470cfc13e6db90942d371
SHA1af9e1477a51858376bd113f8247b4f6ff1b94445
SHA256fe8dd23da7d898858d6a280cd58d4ca332f958a4f9562bf8f364dc4340f9c34c
SHA512cfe21519f4c55583c3c68592812dbfa1170279de5e20b3da6d49f66957e373288650bd8c1a6afcd6d70255356674579b40c1b75a7c154fcc705cc89056ff8d67
-
C:\Users\Admin\AppData\Local\d44036ef-17e8-4568-a539-db6f20ea049a\c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1.exe
Filesize794KB
MD594299ea2cfd6cf8acc8a8c8d7edc7ada
SHA14f320731b2dbb2539363f008408c04a26c81a3c1
SHA256c2c1ddff00178c09e0c8f3f1b2a4cd2adacc7ebb6854977f0c881eb9747297b1
SHA51232c16e8fddae30b66902c39b4f657592f24a8e419db0ecdd4cc52a2184f06c6872cf567f1a833b7724f6b3f51f50b5f5e3bfdf3ca50aa0a3d708b0d5a056f56e
-
Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
-
Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571