Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed2bd7ba24355e22…

MALICIOUS

PDF

44.4 KB Created: 2020-03-13 07:41:28 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9d6e564ec94f224bf6ea77b2758343fe SHA-1: b3f26432411c72f1b684697e9c7ffefcdd17a820 SHA-256: ed2bd7ba24355e22bc5dee0332e87c4e353e9ce01db563f571af487cc5a7ceaf
70 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, many of which point to other PDF files, suggesting a link farm or SEO poisoning tactic. The document body also contains urgency lures, such as 'account will be terminated' and 'action required within 24 hours', which are common in phishing attempts. The primary goal appears to be directing users to malicious websites through these links.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://befreetherapy.com/uploads/1/3/0/7/130775365/130775365.html#demonstrative+interrogative+and+relative+pronouns+worksheet+answers
    • http://www.southernintegrity.net/uploads/1/3/0/7/130739081/didusuk_tekanugubeze.pdf
    • http://huanqiuyulechengdailijiameng.f18.ebkf.org/uploads/1/3/0/2/130270982/lojekosizizariw_sateti_laxoka.pdf
    • http://tdpnc.com/uploads/1/3/0/5/130551671/dunabumelo.pdf
    • http://mrlob9000.net/uploads/1/3/0/7/130739261/kewunaxasobekojiw.pdf
    • http://dirkgentlydetectiveagency.com/uploads/1/3/0/3/130379457/nopidebokiwolop.pdf
    • http://italiano.euregiolanguageservices.eu/uploads/1/3/0/3/130313004/pasedixawilijo.pdf
    • http://floropathy.org/uploads/1/3/0/4/130488569/dakokiguxakevux_domifolibadufum_loxoketowan.pdf
    • http://stevemusiclessons.com/uploads/1/3/0/6/130620402/rivuguw.pdf
    • http://businessrescuene.com/uploads/1/3/0/6/130639557/5c1272e.pdf
    • http://oregonnw.net/uploads/1/3/0/2/130272339/remusijuzedolefura.pdf
    • http://jay-defeo.org/uploads/1/3/0/3/130323154/zorul.pdf
    • http://monashsoccerclub.com/uploads/1/3/0/4/130489229/jemumedevaj_kemel.pdf
    • http://notredameberlinseminar.org/uploads/1/3/0/6/130639343/lizonaxogovube-fazadutizo-wumix-galisomesopax.pdf
    • http://bigflagmetal.com/uploads/1/3/0/7/130739344/gigojapivaru.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_off00006f19.bin
a8ef286dba13da396fe8521a0221e6248e5ff2d6a0dc9a564cc8aebedda5d178		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F19 8280 bytes
font_01_sfnt_off00008eff.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EFF 16036 bytes

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