Malicious PDF — malware analysis report

Static analysis result for SHA-256 46cda9fea1eae3e8…

MALICIOUS

PDF

31.3 KB Authoring application: OpenOffice Draw
MD5: eebf96bbb972621a3bd3f309816ec632 SHA-1: 2c3b410e0e039d1f238a1b9f10f5488f16c2b58a SHA-256: 46cda9fea1eae3e85f392edc7177c46d677bb06f29e8023f8181f9a013d81fe2
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded URLs are the primary IOCs, suggesting a phishing or content distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://bep.smileshop10.ru/uploads/2020/01/27/gofesobono.pdf
    • http://10xoceansolutions.com/uploads/1/3/0/2/130288381/a177db0e4f2d7d7.pdf
    • http://paxaxinoj.sampstealer.xyz/uploads/2020/01/28/timekipuwizoganuxaj.pdf
    • http://mississauganations.com/uploads/1/3/0/4/130483294/balizinukowuratirudo.pdf
    • http://tifihair.com/uploads/1/3/0/6/130604110/7041621.pdf
    • https://patimeduzus.weebly.com/uploads/1/3/0/5/130590443/daxokidifoviful-vobuxujovidibu-jasigelimafaf-nipine.pdf
    • http://biw.qiwi-luck.pw/uploads/2020/01/27/ludugiba.pdf
    • http://investiruemvmeste.ru/uploads/1/3/0/6/130604509/8579454.pdf
    • http://mister5foot18.com/uploads/1/3/0/4/130479312/popozur.pdf
    • http://xip.ssberprizee.info/uploads/2020/01/28/157bde2.pdf
    • http://rikatsutsui.com/uploads/1/3/0/6/130604548/92ec4406b6.pdf
    • http://damiandineen.com/uploads/1/3/0/5/130539097/1663289.pdf
    • http://afaparents.org/uploads/1/3/0/6/130604110/130604110.html#harry+potter+4k

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012cd.bin
d359380c100f2f45c4b45729556fdd3006270a89bc623216cc951d4cb90c1e52		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12CD 7908 bytes

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