Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c1a50b7abbf7250…

MALICIOUS

PDF

36.3 KB Created: 2020-06-21 07:20:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 408250265b9ee005b301cd323d15be63 SHA-1: d2a4d6a500731cc625bfdee7add1773b7c9cd398 SHA-256: 1c1a50b7abbf72509d7207521e6e4e2aa769df56f75d403475e7def566f9fa47
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which are numerically or generically named, suggesting a link farm or SEO spam tactic. The document body, though partially corrupted, includes the phrase 'Handmade tutu tutorial' and several URLs, reinforcing the idea of a lure to a network of websites. 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://manageourbills.org/uploads/1/3/1/8/131857284/131857284.html#handmade+tutu+tutorial
    • http://speakformeplease.com/uploads/1/3/0/4/130478819/zaxofumot_sumoxebuba_gububoderigu_jafopiroku.pdf
    • http://newyorkreflexology.com/uploads/1/3/1/0/131070842/kalisivoxumog_regefebuwixip_gudelanijef.pdf
    • http://willispropertyoffmarket.com/uploads/1/3/1/8/131871466/lepuxi.pdf
    • http://mea52.com/uploads/1/3/1/3/131384301/3515435.pdf
    • http://mademix.net/uploads/1/3/1/4/131437755/da0eabb4882e06.pdf
    • http://dimitridevre.com/uploads/1/3/1/4/131454762/nitunogejigaviz_wumulidajebekev_nalam.pdf
    • http://dn2040.com/uploads/1/3/0/6/130604836/tapelogalozo-puwununaxoxataz-wujofepagino-xoralufofut.pdf
    • http://pcflooringremodelingllc.com/uploads/1/3/0/8/130814408/dimowosi-nojobuzisuduna-kowedur.pdf
    • http://oluwaterpolo.com/uploads/1/3/0/6/130604079/689721.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_off000052e6.bin
9248a21f089c01608023ff547917a8d42050782143f481ff872e3c5ffa6f21e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52E6 4636 bytes
font_01_sfnt_off00006277.bin
4f6aa5f4d95e9f49cf11370330369bdc20c942a1c2acf619108042fac8890ef4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6277 10204 bytes

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