Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab7b3c88a25fce0f…

MALICIOUS

PDF

36.1 KB Created: 2020-05-23 18:18:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b3030fd41acc2b43ed5f06f5924fd5a SHA-1: a440a0f167036da676c0bf410284a31880553d99 SHA-256: ab7b3c88a25fce0ff9fc8f3920d7c0a4990fe552975c6b49025b57c5d1235262
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to PDF files with numeric or generic slugs, indicative of a link farm or SEO spam tactic. One of the embedded URLs, http://apelfuji.net/uploads/1/3/0/5/130542729/130542729.html#download+fruity+loops, suggests a lure for downloading software. No scripts were extracted from this sample.

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://apelfuji.net/uploads/1/3/0/5/130542729/130542729.html#download+fruity+loops
    • http://shopprincessopal.com/uploads/1/3/1/3/131380505/wofomosusi.pdf
    • http://casablanca-mansion.com/uploads/1/3/1/3/131379026/5727410.pdf
    • http://crazyladywitharollingpin.net/uploads/1/3/1/4/131483282/zizeja.pdf
    • http://growmyganesha.com/uploads/1/3/1/6/131606719/3df673ca50e73.pdf
    • http://anonymous-copy.com/uploads/1/3/0/5/130551463/sazobozigoxajirazi.pdf
    • http://jerrygarciafoundation.net/uploads/1/3/0/8/130813768/da80e0b2.pdf
    • http://littleweedsworkshop.com/uploads/1/3/1/4/131437660/zudiparolalopefi.pdf
    • http://ruahexperience.com/uploads/1/3/0/3/130323968/febenogedapekilofiw.pdf
    • http://artizanekmek.com/uploads/1/3/0/7/130776571/8980634.pdf
    • http://tinastouchjewelrydesigns.com/uploads/1/3/0/3/130323559/vunutaxu-lajawevak-wojevixona-tigogofu.pdf
    • http://remontyzamkowski.pl/uploads/1/3/0/5/130539678/dupipixi-bufejusoxaporog-lupigulob-mawejixabujuxeb.pdf
    • http://puttylove.com/uploads/1/3/0/6/130621960/1abf6baa.pdf
    • http://mckennakasper.com/uploads/1/3/1/8/131871817/jomibuz.pdf
    • http://stonesthrows.com/uploads/1/3/0/7/130740056/zokizade_jogerub_zusumivu_xigewipeg.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006297.bin
3a6c4baab78cd67a91008cddd6b32b3373964726bda3bc4bbfd66b548c5f33b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6297 10252 bytes

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