Analysis Overview
SHA256
1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd
Threat Level: Known bad
The file 1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Vidar
Djvu Ransomware
Vidar Stealer
Executes dropped EXE
Downloads MZ/PE file
Reads user/profile data of web browsers
Checks computer location settings
Modifies file permissions
Loads dropped DLL
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Looks up external IP address via web service
Checks installed software on the system
Suspicious use of SetThreadContext
Enumerates physical storage devices
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Modifies system certificate store
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-04-23 20:46
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-04-23 20:46
Reported
2022-04-23 20:49
Platform
win10v2004-20220414-en
Max time kernel
100s
Max time network
127s
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
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\186d1b83-f528-4ff8-ab0d-dc94ab1ce215\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\186d1b83-f528-4ff8-ab0d-dc94ab1ce215\build2.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\186d1b83-f528-4ff8-ab0d-dc94ab1ce215\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\186d1b83-f528-4ff8-ab0d-dc94ab1ce215\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-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\38c4be7e-9277-4f16-9181-cdd1e5f683d0\\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.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 3120 set thread context of 892 | N/A | C:\Users\Admin\AppData\Local\Temp\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe | C:\Users\Admin\AppData\Local\Temp\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe |
| PID 3116 set thread context of 3840 | N/A | C:\Users\Admin\AppData\Local\Temp\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe | C:\Users\Admin\AppData\Local\Temp\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe |
| PID 1336 set thread context of 1384 | N/A | C:\Users\Admin\AppData\Local\186d1b83-f528-4ff8-ab0d-dc94ab1ce215\build2.exe | C:\Users\Admin\AppData\Local\186d1b83-f528-4ff8-ab0d-dc94ab1ce215\build2.exe |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\186d1b83-f528-4ff8-ab0d-dc94ab1ce215\build2.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\186d1b83-f528-4ff8-ab0d-dc94ab1ce215\build2.exe | N/A |
Modifies system certificate store
| Description | Indicator | Process | Target |
| Set value (data) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 5c000000010000000400000000080000090000000100000054000000305206082b0601050507030206082b06010505070303060a2b0601040182370a030406082b0601050507030406082b0601050507030606082b0601050507030706082b0601050507030106082b0601050507030853000000010000004300000030413022060c2b06010401b231010201050130123010060a2b0601040182373c0101030200c0301b060567810c010330123010060a2b0601040182373c0101030200c0620000000100000020000000d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef40b000000010000001c0000005300650063007400690067006f002000280041004100410029000000140000000100000014000000a0110a233e96f107ece2af29ef82a57fd030a4b41d00000001000000100000002e0d6875874a44c820912e85e964cfdb030000000100000014000000d1eb23a46d17d68fd92564c2f1f1601764d8e349200000000100000036040000308204323082031aa003020102020101300d06092a864886f70d0101050500307b310b3009060355040613024742311b301906035504080c1247726561746572204d616e636865737465723110300e06035504070c0753616c666f7264311a3018060355040a0c11436f6d6f646f204341204c696d697465643121301f06035504030c18414141204365727469666963617465205365727669636573301e170d3034303130313030303030305a170d3238313233313233353935395a307b310b3009060355040613024742311b301906035504080c1247726561746572204d616e636865737465723110300e06035504070c0753616c666f7264311a3018060355040a0c11436f6d6f646f204341204c696d697465643121301f06035504030c1841414120436572746966696361746520536572766963657330820122300d06092a864886f70d01010105000382010f003082010a0282010100be409df46ee1ea76871c4d45448ebe46c883069dc12afe181f8ee402faf3ab5d508a16310b9a06d0c57022cd492d5463ccb66e68460b53eacb4c24c0bc724eeaf115aef4549a120ac37ab23360e2da8955f32258f3dedccfef8386a28c944f9f68f29890468427c776bfe3cc352c8b5e07646582c048b0a891f9619f762050a891c766b5eb78620356f08a1a13ea31a31ea099fd38f6f62732586f07f56bb8fb142bafb7aaccd6635f738cda0599a838a8cb17783651ace99ef4783a8dcf0fd942e2980cab2f9f0e01deef9f9949f12ddfac744d1b98b547c5e529d1f99018c7629cbe83c7267b3e8a25c7c0dd9de6356810209d8fd8ded2c3849c0d5ee82fc90203010001a381c03081bd301d0603551d0e04160414a0110a233e96f107ece2af29ef82a57fd030a4b4300e0603551d0f0101ff040403020106300f0603551d130101ff040530030101ff307b0603551d1f047430723038a036a0348632687474703a2f2f63726c2e636f6d6f646f63612e636f6d2f414141436572746966696361746553657276696365732e63726c3036a034a0328630687474703a2f2f63726c2e636f6d6f646f2e6e65742f414141436572746966696361746553657276696365732e63726c300d06092a864886f70d010105050003820101000856fc02f09be8ffa4fad67bc64480ce4fc4c5f60058cca6b6bc1449680476e8e6ee5dec020f60d68d50184f264e01e3e6b0a5eebfbc745441bffdfc12b8c74f5af48960057f60b7054af3f6f1c2bfc4b97486b62d7d6bccd2f346dd2fc6e06ac3c334032c7d96dd5ac20ea70a99c1058bab0c2ff35c3acf6c37550987de53406c58effcb6ab656e04f61bdc3ce05a15c69ed9f15948302165036cece92173ec9b03a1e037ada015188ffaba02cea72ca910132cd4e50826ab229760f8905e74d4a29a53bdf2a968e0a26ec2d76cb1a30f9ebfeb68e756f2aef2e32b383a0981b56b85d7be2ded3f1ab7b263e2f5622c82d46a004150f139839f95e93696986e | C:\Users\Admin\AppData\Local\Temp\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 | C:\Users\Admin\AppData\Local\Temp\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe
"C:\Users\Admin\AppData\Local\Temp\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe"
C:\Users\Admin\AppData\Local\Temp\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe
"C:\Users\Admin\AppData\Local\Temp\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\38c4be7e-9277-4f16-9181-cdd1e5f683d0" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe
"C:\Users\Admin\AppData\Local\Temp\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe
"C:\Users\Admin\AppData\Local\Temp\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\186d1b83-f528-4ff8-ab0d-dc94ab1ce215\build2.exe
"C:\Users\Admin\AppData\Local\186d1b83-f528-4ff8-ab0d-dc94ab1ce215\build2.exe"
C:\Users\Admin\AppData\Local\186d1b83-f528-4ff8-ab0d-dc94ab1ce215\build2.exe
"C:\Users\Admin\AppData\Local\186d1b83-f528-4ff8-ab0d-dc94ab1ce215\build2.exe"
Network
| Country | Destination | Domain | Proto |
| 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 |
| MX | 189.156.119.68:80 | fuyt.org | tcp |
| DO | 186.7.74.224:80 | zerit.top | tcp |
| MX | 189.156.119.68:80 | fuyt.org | tcp |
| NL | 104.110.191.133:80 | tcp | |
| US | 20.189.173.2:443 | 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 |
| DE | 116.202.1.195:80 | 116.202.1.195 | tcp |
Files
memory/892-133-0x0000000000000000-mapping.dmp
memory/892-134-0x0000000000400000-0x0000000000537000-memory.dmp
memory/892-135-0x0000000000400000-0x0000000000537000-memory.dmp
memory/892-136-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3120-137-0x0000000000AEA000-0x0000000000B7B000-memory.dmp
memory/3120-138-0x0000000000B80000-0x0000000000C9B000-memory.dmp
memory/892-139-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1252-140-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\38c4be7e-9277-4f16-9181-cdd1e5f683d0\1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd.exe
| MD5 | bd8348f257f944a8370b288dfbfdf82b |
| SHA1 | afe3563b6c144d1ecff4e6cafba729eb95ad1d02 |
| SHA256 | 1992f264f1bf5d0ff3e3ca09f45f3b157a88ef907d80a239d0e52b63d1c8fefd |
| SHA512 | 28a6559b22323bc9bf890908faa20891cddae2412aabf5605510c45196c801c113cbacadc6a5cabf2fbaeb9dd99d163fa6344cb60c87da01a18c8d39f3b0f69a |
memory/3116-142-0x0000000000000000-mapping.dmp
memory/3840-143-0x0000000000000000-mapping.dmp
memory/3116-146-0x00000000009B5000-0x0000000000A46000-memory.dmp
memory/3840-145-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3840-147-0x0000000000400000-0x0000000000537000-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 | 764f599184102e8e763052a5b1f76b99 |
| SHA1 | f92c345450000b729bd4aa073a58571822686952 |
| SHA256 | 6694f1358aecdbdec61377c14173b726fab9159621d775e952c69a8586f91231 |
| SHA512 | 866d07a2cce0a7cf081a320315a02b9b79da869b260017618ade4575b720663831b00acecc2fb084d50611c67749b81c1a4b2fc49d7cd179e1659f516e90c341 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 47ea6d666a60a3a46a0d09c1e423efe4 |
| SHA1 | b247a3e8d762bb5a090b8e99660bbab70723dd95 |
| SHA256 | b5ce1e81a0627944ed66223424967a72c63e85f9fd943653216bad7aec9804cb |
| SHA512 | 9173a720fd884e903c423b97269df42c57a92a28902e84bf4f3f25c303e8f15c0dac9f0f1ef743be5d8ed78bc0257a5b7a0088c576aabddc4266a982ce55bcaa |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | ae80420644f9d17a1ceb04dfe52b4551 |
| SHA1 | aca7052dea384b8d31813c11839d16dcef04a4b5 |
| SHA256 | 8893c680c876c7e9a453e301b2763e4310c2fc165bcb8e6cf23ae117f6cff476 |
| SHA512 | 3f742909f7dc09e109f0eec4c245f3be76121dfdab494252eba5edb1907402cf7867cdc7595c529d3445a1676750aebbf9aba4df760ad58645aaf3d897a82a6d |
memory/3840-152-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1336-153-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\186d1b83-f528-4ff8-ab0d-dc94ab1ce215\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
C:\Users\Admin\AppData\Local\186d1b83-f528-4ff8-ab0d-dc94ab1ce215\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/1384-156-0x0000000000000000-mapping.dmp
memory/1384-157-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1336-160-0x0000000000608000-0x0000000000633000-memory.dmp
memory/1336-161-0x00000000020D0000-0x0000000002119000-memory.dmp
memory/1384-159-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1384-162-0x0000000000400000-0x000000000044C000-memory.dmp
C:\Users\Admin\AppData\Local\186d1b83-f528-4ff8-ab0d-dc94ab1ce215\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/1384-163-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1384-164-0x0000000060900000-0x0000000060992000-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 |