Malicious PDF — malware analysis report

Static analysis result for SHA-256 ade5b002a130378f…

MALICIOUS

PDF

49.8 KB Created: 2020-03-29 09:15:55 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4f2c1f364b1f41ce27955cd202f682a4 SHA-1: d8ddd5749c6eb158b4ac18bc61b3a2f7792718a0 SHA-256: ade5b002a130378fd8aafca514d8113f8647b9e759e59a0f22361674a1e13f05
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are numerically or generically named PDFs, suggesting a link farm for SEO manipulation or to host malicious content. The document body text, though partially corrupted, contains a lure related to "Adobe photoshop books for beginners free download pc", indicating a potential phishing or scam attempt. The primary attack pattern involves directing users to external resources via these numerous links.

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://nashobavalleyextractco.com/uploads/1/3/0/5/130589373/130589373.html#adobe+photoshop+books+for+beginners+free+download+pc
    • http://noelledesantis.com/uploads/1/3/0/7/130738503/zikapik-terumofuzu.pdf
    • http://xbosak.com/uploads/1/3/0/9/130969533/zumajoxipu_bozexemeradu_levomonixajaj.pdf
    • http://bethelchurch-smallgroups.com/uploads/1/3/0/8/130814252/9592129.pdf
    • http://synergyassistllc.com/uploads/1/3/0/7/130775386/nimetigiber_ziwojeju_ruwonolajazegun_kinovezizamupap.pdf
    • http://etarhoques.com/uploads/1/3/0/7/130740483/8425387.pdf
    • http://1050catalpa.com/uploads/1/3/0/7/130739658/zaxomesozosepe.pdf
    • http://nexts-lab.com/uploads/1/3/0/7/130776607/8928849.pdf
    • http://xddb.org/uploads/1/3/0/6/130604425/ledesonanobu.pdf
    • http://airyfitness.com/uploads/1/3/1/0/131070792/kozodetekipa_buxulagujizi_navomabesu_werew.pdf
    • http://cen01-67-18-74-18.noc1.net/uploads/1/3/0/6/130620700/6013685.pdf
    • http://witheringintheheat.com/uploads/1/3/0/7/130740212/dabc27b6.pdf
    • http://quincyquarrymuseum.com/uploads/1/3/0/7/130739052/6411415.pdf
    • http://odor911.com/uploads/1/3/0/8/130873828/6e1b1b7d26.pdf
    • http://mjlpa.us/uploads/1/3/0/6/130605448/6cc57.pdf
    • http://toneboxdigital.com/uploads/1/3/0/2/130272585/3408594.pdf
    • http://iqrailc.com/uploads/1/3/0/4/130489431/makiniriw.pdf
    • http://thelonghornsd.com/uploads/1/3/0/4/130488362/getetakelojifunexum.pdf
    • http://alessandrocorezzola.org/uploads/1/3/0/8/130813489/1142819.pdf
    • http://conservamelia.com/uploads/1/3/0/4/130489230/738ee1ed5238c5.pdf
    • http://www.lixfood.com/uploads/1/3/0/6/130621941/belut_nebowaxizowon_dinipi_vopobezuj.pdf
    • http://asmentoring.com/uploads/1/3/0/6/130620268/pedena-labemevozudabu.pdf
    • http://andhops.com/uploads/1/3/0/6/130620230/4c0fc421.pdf
    • http://envirotechncllc.com/uploads/1/3/0/5/130551651/1130da4e6.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_off00008331.bin
389cc6dc2479c2f2eb5e7378d0beb6566c4f98e64bce6b58fd2ed782c50b89b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8331 8508 bytes
font_01_sfnt_off0000a3d8.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3D8 16036 bytes

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