Analysis Overview
SHA256
bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760
Threat Level: Known bad
The file bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760 was found to be: Known bad.
Malicious Activity Summary
Djvu Ransomware
Detected Djvu ransomware
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
Vidar
Vidar Stealer
Executes dropped EXE
Downloads MZ/PE file
Modifies file permissions
Reads user/profile data of web browsers
Loads dropped DLL
Checks computer location settings
Looks up external IP address via web service
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Accesses 2FA software files, possible credential harvesting
Adds Run key to start application
Suspicious use of SetThreadContext
Enumerates physical storage devices
Modifies system certificate store
Suspicious use of WriteProcessMemory
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-04-24 05:40
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-04-24 05:40
Reported
2022-04-24 05:43
Platform
win10v2004-20220414-en
Max time kernel
100s
Max time network
124s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Djvu Ransomware
Vidar
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
Vidar Stealer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Downloads MZ/PE file
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\7415a489-2d15-43c9-9d4d-37ae769098e4\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\7415a489-2d15-43c9-9d4d-37ae769098e4\build2.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\7415a489-2d15-43c9-9d4d-37ae769098e4\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\7415a489-2d15-43c9-9d4d-37ae769098e4\build2.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
Reads user/profile data of web browsers
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\77415ba6-3811-4bd3-add1-95c832ca7411\\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe | N/A |
Checks installed software on the system
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | api.2ip.ua | N/A | N/A |
| N/A | api.2ip.ua | N/A | N/A |
| N/A | api.2ip.ua | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4568 set thread context of 1192 | N/A | C:\Users\Admin\AppData\Local\Temp\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe | C:\Users\Admin\AppData\Local\Temp\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe |
| PID 344 set thread context of 3884 | N/A | C:\Users\Admin\AppData\Local\Temp\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe | C:\Users\Admin\AppData\Local\Temp\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe |
| PID 876 set thread context of 1532 | N/A | C:\Users\Admin\AppData\Local\7415a489-2d15-43c9-9d4d-37ae769098e4\build2.exe | C:\Users\Admin\AppData\Local\7415a489-2d15-43c9-9d4d-37ae769098e4\build2.exe |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\7415a489-2d15-43c9-9d4d-37ae769098e4\build2.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\7415a489-2d15-43c9-9d4d-37ae769098e4\build2.exe | N/A |
Modifies system certificate store
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 | C:\Users\Admin\AppData\Local\Temp\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe | N/A |
| Set value (data) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 | C:\Users\Admin\AppData\Local\Temp\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe
"C:\Users\Admin\AppData\Local\Temp\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe"
C:\Users\Admin\AppData\Local\Temp\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe
"C:\Users\Admin\AppData\Local\Temp\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\77415ba6-3811-4bd3-add1-95c832ca7411" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe
"C:\Users\Admin\AppData\Local\Temp\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe
"C:\Users\Admin\AppData\Local\Temp\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\7415a489-2d15-43c9-9d4d-37ae769098e4\build2.exe
"C:\Users\Admin\AppData\Local\7415a489-2d15-43c9-9d4d-37ae769098e4\build2.exe"
C:\Users\Admin\AppData\Local\7415a489-2d15-43c9-9d4d-37ae769098e4\build2.exe
"C:\Users\Admin\AppData\Local\7415a489-2d15-43c9-9d4d-37ae769098e4\build2.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 104.110.191.133:80 | tcp | |
| NL | 104.110.191.133:80 | tcp | |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| DE | 162.0.217.254:443 | api.2ip.ua | tcp |
| DE | 162.0.217.254:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | zerit.top | udp |
| US | 8.8.8.8:53 | fuyt.org | udp |
| BD | 27.147.183.45:80 | fuyt.org | tcp |
| KR | 222.236.49.124:80 | zerit.top | tcp |
| BD | 27.147.183.45:80 | fuyt.org | tcp |
| US | 8.8.8.8:53 | t.me | udp |
| NL | 149.154.167.99:443 | t.me | tcp |
| DE | 116.202.1.195:80 | 116.202.1.195 | tcp |
| US | 104.208.16.90:443 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.221.240:80 | tcp |
Files
memory/1192-130-0x0000000000000000-mapping.dmp
memory/1192-131-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1192-132-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4568-133-0x00000000009C6000-0x0000000000A57000-memory.dmp
memory/4568-134-0x0000000002330000-0x000000000244B000-memory.dmp
memory/1192-135-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1192-136-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4184-137-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\77415ba6-3811-4bd3-add1-95c832ca7411\bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760.exe
| MD5 | bf33d58411f1f5718ee9a41486d096c1 |
| SHA1 | 00b322cb295314695f33880157651e475340792d |
| SHA256 | bdc232eb3bf87735a61c0c379944363e93a38d9f474e1491e2bfdb3ddba27760 |
| SHA512 | 07a8f6d65ecb7b4e3da396b0945e891b4a9a15cb525ce802118e64c9aac96e0a1a2f2dbb4788cef2cd920c9bd70c4170386863e7e0cdeaf69955a440435dbc97 |
memory/344-139-0x0000000000000000-mapping.dmp
memory/3884-140-0x0000000000000000-mapping.dmp
memory/3884-142-0x0000000000400000-0x0000000000537000-memory.dmp
memory/344-143-0x0000000000919000-0x00000000009AA000-memory.dmp
memory/3884-144-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | 4b48eeea719432bc0719653be71e6ecf |
| SHA1 | 41367524cf7d0c34d7737722cb2212558fca9938 |
| SHA256 | 2d25e68537528a81bcadb24f24afda11671512a17d04ed304cf138a30b228866 |
| SHA512 | 152b287e3d0c05f3b4dea98a20e1fc39a61008b3d5c4acc7632647bdffc090ef2ea76d4ec3a6d0cf3387c9f2f43fde1624f213908beb9583b6ad43429f551533 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | fc43187963b08d24df03cb2a9522e6c1 |
| SHA1 | 7bc0d078f4a53fab5c7eef87937d2d71b7381c57 |
| SHA256 | ac10c85e8d363177a695482d7d8c4f4f8a18af29e4831d450f259f7c2ac32aca |
| SHA512 | 8bbc38761e3151dfd9a20a6be4dea4c59e767b28d72179fd8dc131eb5d8232e6a4dcae2722662fe483be1880ff30644f0bf3c742e4697584a7084897b09d659d |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | ae80420644f9d17a1ceb04dfe52b4551 |
| SHA1 | aca7052dea384b8d31813c11839d16dcef04a4b5 |
| SHA256 | 8893c680c876c7e9a453e301b2763e4310c2fc165bcb8e6cf23ae117f6cff476 |
| SHA512 | 3f742909f7dc09e109f0eec4c245f3be76121dfdab494252eba5edb1907402cf7867cdc7595c529d3445a1676750aebbf9aba4df760ad58645aaf3d897a82a6d |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | a16eb70ed560a38d3c2eb3c49c04bfd5 |
| SHA1 | d97a8492950dfab4cad7cd9937063af9a47e66f0 |
| SHA256 | 70c58c4a47c20b908d584d0faebd39739ea91ce75c59032beec81e8ea9d4e758 |
| SHA512 | d1c136e112d022038d15c1dda1f21523b855167a35852a93b8ed4b100bd3d82847de10625979fcc8dcb260390199a1090e7846958e590a1f475294df22977e6c |
memory/3884-149-0x0000000000400000-0x0000000000537000-memory.dmp
memory/876-150-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\7415a489-2d15-43c9-9d4d-37ae769098e4\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
C:\Users\Admin\AppData\Local\7415a489-2d15-43c9-9d4d-37ae769098e4\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/876-153-0x0000000000558000-0x0000000000583000-memory.dmp
memory/1532-154-0x0000000000000000-mapping.dmp
memory/1532-155-0x0000000000400000-0x000000000044C000-memory.dmp
C:\Users\Admin\AppData\Local\7415a489-2d15-43c9-9d4d-37ae769098e4\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/1532-157-0x0000000000400000-0x000000000044C000-memory.dmp
memory/876-158-0x0000000000558000-0x0000000000583000-memory.dmp
memory/876-159-0x0000000001FB0000-0x0000000001FF9000-memory.dmp
memory/1532-160-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1532-161-0x0000000000400000-0x000000000044C000-memory.dmp
C:\ProgramData\nss3.dll
| MD5 | bfac4e3c5908856ba17d41edcd455a51 |
| SHA1 | 8eec7e888767aa9e4cca8ff246eb2aacb9170428 |
| SHA256 | e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78 |
| SHA512 | 2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66 |
C:\ProgramData\mozglue.dll
| MD5 | 8f73c08a9660691143661bf7332c3c27 |
| SHA1 | 37fa65dd737c50fda710fdbde89e51374d0c204a |
| SHA256 | 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd |
| SHA512 | 0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89 |