Malicious PDF — malware analysis report

Static analysis result for SHA-256 6630d23e5b74f92c…

MALICIOUS

PDF

53.5 KB Authoring application: Poppler-utils
MD5: 5e2ba614e707927b1e896cff29bfc53b SHA-1: a4c0bc7dbadf40bbb1ce8fb12ad819d59d4651e3 SHA-256: 6630d23e5b74f92c7ad3140d92e87f5fd707de3d908e812e0ec0130ebfeac4f0
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic and ClamAV detection. While no scripts were directly extracted, the embedded URLs are the primary indicators of malicious intent, likely serving as a lure or a method to spread other malicious documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://bigbitedumpsterrentals.com/uploads/1/3/0/4/130483799/a618da8587f097.pdf
    • https://zosikamunavi.weebly.com/uploads/1/3/0/5/130590569/xokaten-kizejarozifa.pdf
    • http://rapidoutdoor.com/uploads/1/3/0/4/130478935/6377215.pdf
    • http://krissyoneill.com/uploads/1/3/0/2/130272853/8622536.pdf
    • http://dipuju.binancedex-giveaway.com/uploads/2020/01/28/8e8c7b7a4.pdf
    • https://mafegajavor.weebly.com/uploads/1/3/0/4/130476146/1475111f.pdf
    • http://sylvainetlesfilles.com/uploads/1/3/0/6/130620519/fafadumu.pdf
    • http://lagniappewithahook.com/uploads/1/3/0/3/130323251/e866ab26.pdf
    • http://300davidsonave.com/uploads/1/3/0/6/130604414/834457.pdf
    • http://boroboso.investingpaisa.com/uploads/2020/01/29/7248694.pdf
    • http://westlacondos.com/uploads/1/3/0/6/130605472/jaroxaj.pdf
    • http://courtneysuzannelee.com/uploads/1/3/0/6/130639308/679ec95952f8.pdf
    • http://myneosystems.com/uploads/1/3/0/5/130546880/xomovafevadoje_somumof_birowogaze.pdf
    • http://oliviadummer.com/uploads/1/3/0/4/130476493/6860520.pdf
    • http://tazuges.blamecharlie.com/uploads/2020/01/29/4661554.pdf
    • http://nicole-bramble-illustration.com/uploads/1/3/0/6/130639244/9489004.pdf
    • http://downriverkaraokeanddj.com/uploads/1/3/0/3/130323709/c59fad76930.pdf
    • http://topfinance.ru/uploads/2020/01/28/4165243.pdf
    • http://susanmastalsfoundation.org/uploads/1/3/0/6/130603954/2431217.pdf
    • http://zelibonup.recude.xyz/uploads/2020/01/29/lafuvobepafulodej.pdf
    • http://gameday.info/uploads/1/3/0/5/130588649/3961447.pdf
    • http://deliyannides.org/uploads/1/3/0/5/130589396/vabad_retap_juzimewap.pdf
    • http://mertior.com/uploads/1/3/0/5/130539702/lasaxumumixobi-sejenesabiwipus-pejinuxonoko.pdf
    • http://minnesotalashextensions.com/uploads/1/3/0/2/130271087/xunibavepexoxap.pdf
    • http://ner1.ru/uploads/2020/01/28/roguzijugo-fatebavadoled.pdf
    • http://beyondthebellharrisonburg.com/uploads/1/3/0/5/130590217/130590217.html#blessing+tv+tamil+songs
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001784.bin
6f42f296320054639249b7eae44fc812cef0c37578ed1f14a6928ac2adf9a147		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1784 8440 bytes
font_01_sfnt_off0000661f.bin
da11d9348363c90a75ef9a8d41755cffd1d241d38473a0b7bc9be5a5b5c32179		 pdf-font-stream PDF embedded font (sfnt) at offset 0x661F 10032 bytes
font_02_sfnt_off00008032.bin
313727cb04ffde3ba2ffc011a19b224062d83a46cbb03571f91f4b4816200d28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8032 16236 bytes
font_03_sfnt_off0000950c.bin
84340d81b687e5658134e86d602934373e4edb1358290f916b35b324124d256a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x950C 2696 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.