Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f1479a4d08d6b48…

MALICIOUS

PDF

44.1 KB Created: 2020-04-01 16:50:49 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4a338db0440d7da5168a89ea9c518d29 SHA-1: d8487abb92a832ef0dad4d4be62c58b51ba09cfd SHA-256: 3f1479a4d08d6b4804d6278413af2c320bb11a99d12ea3fda61d32d34e96f638
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links 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. The document body, though partially corrupted, contains a reference to 'Greenworks electric power washer manual', which may be a lure to entice users to click the embedded links. 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://escorti-milano.com/uploads/1/3/1/4/131407035/131407035.html#greenworks+electric+power+washer+manual
    • http://greensleeve.store/uploads/1/3/1/4/131409090/7710483.pdf
    • http://mybooknook.net/uploads/1/3/0/6/130621591/736815.pdf
    • http://buypix.com/uploads/1/3/0/5/130539554/tenodokidudidebinila.pdf
    • http://vpstestsite.com/uploads/1/3/0/6/130639840/4257be2295.pdf
    • http://bellajewelzzonline.com/uploads/1/3/1/0/131070722/5465a1ae57.pdf
    • http://kimino-japan.com/uploads/1/3/0/3/130323573/5953911.pdf
    • http://blakedroesch.com/uploads/1/3/0/8/130874522/7632072.pdf
    • http://lifecoachingprofetis.com/uploads/1/3/0/5/130589125/vipumufanol.pdf
    • http://emoryreindesigns.com/uploads/1/3/0/9/130969036/310861.pdf
    • http://dubaidesignsprint.com/uploads/1/3/0/7/130776158/2237401.pdf
    • http://dumptruckstevesadventures.shop/uploads/1/3/0/5/130540209/vedametogujo.pdf
    • http://baycoastnurses.org/uploads/1/3/0/7/130775027/bazupig.pdf
    • http://amberindiacatering.com/uploads/1/3/0/4/130490977/zenamefinujojogu.pdf
    • http://masourasbrosgroup.com/uploads/1/3/0/7/130738526/1535277.pdf
    • http://thesnff.com/uploads/1/3/0/6/130603807/f9116290.pdf
    • http://toyota-tacoma-v6.com/uploads/1/3/0/7/130776407/7362544.pdf
    • http://fivemilelion.com/uploads/1/3/0/3/130313091/2825571.pdf
    • http://blendinghelp.com/uploads/1/3/0/4/130435594/difututosaxagunep.pdf
    • http://nathanpasha.com/uploads/1/3/0/7/130740625/f68dc1615.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006dd3.bin
a68e3cd6ec21e7d7304f6db103237fd56d70d9de8cfb39c91b85626d9816cf27
pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD3 7788 bytes
font_01_sfnt_off00008c33.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C33 16036 bytes