Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fd0a33177bd23b4…

MALICIOUS

PDF

40.3 KB Created: 2020-03-10 07:19:24 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-07
MD5: 3b6d9048ab4a26884994b6439dc80f51 SHA-1: 44c6ddc07280c5191b1abba84f09d1537a1490fa SHA-256: 4fd0a33177bd23b4c9711efb6dbf869a5fda500ce7018e78855586e91fd9ef5d
96 Risk Score

Malware Insights

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

The PDF document contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or SEO poisoning tactic. The document body contains text related to 'Atlanta airport map terminal s', which appears to be a lure to attract users to click on the embedded links. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://speelkoning.net/uploads/1/3/0/6/130605203/130605203.html#atlanta+airport+map+terminal+s PDF link annotation
    • http://inkbirdcomms.com/uploads/1/3/0/8/130813913/supiwe.pdfIn PDF document text
    • http://aledobands.com/uploads/1/3/0/2/130289796/vofevedusatopa.pdfIn PDF document text
    • http://fashionthinkers.com/uploads/1/3/0/6/130639698/6a68bdf63.pdfIn PDF document text
    • http://www.festeburgberlin.de/uploads/1/3/0/2/130270894/dokogunimatezego.pdfIn PDF document text
    • http://revivalmission.info/uploads/1/3/0/5/130539021/luzilorutufu_mivowap.pdfIn PDF document text
    • http://carpaintprotectionadelaide.com/uploads/1/3/0/9/130969353/vexudixusomujurul.pdfIn PDF document text
    • http://raefeddins.com/uploads/1/3/0/4/130476318/lumup.pdfIn PDF document text
    • http://oakforestflooring.co.uk/uploads/1/3/0/7/130775755/4680df1f9.pdfIn PDF document text
    • http://www.clearchoicesafetyllc.com/uploads/1/3/0/5/130548108/jopab_dodos_lagotakirar.pdfIn PDF document text
    • http://costaparadiso.holiday/uploads/1/3/0/8/130814673/8fc90.pdfIn PDF document text
    • http://www.emecounseling.com/uploads/1/3/0/5/130539718/mezilutojujikasi.pdfIn PDF document text
    • http://movebox.nl/uploads/1/3/0/3/130313054/jitimen.pdfIn PDF document text
    • http://brainstemtumorlady.com/uploads/1/3/0/5/130588693/4a07a6f9.pdfIn PDF document text
    • http://patiocoverideas.net/uploads/1/3/0/7/130775676/dibetase-dixeripifo-mefusijur.pdfIn PDF document text
    • http://misfitzgoods.com/uploads/1/3/0/2/130289583/72543d6558c.pdfIn PDF document text
    • http://spectrarte.com/uploads/1/3/0/5/130588551/fdc45071.pdfIn PDF document text
    • http://shopwasilclothing.com/uploads/1/3/0/8/130813536/migemifen.pdfIn PDF document text
    • http://mogsaddiction.com/uploads/1/3/0/6/130604529/cc3101bcdd7.pdfIn PDF document text
    • http://mysupplyguyatl.com/uploads/1/3/0/6/130603776/bogevesotom.pdfIn PDF document text
    • http://controlledwatersolutionz.com/uploads/1/3/0/5/130550873/revaxumidutasebolox.pdfIn PDF document text
    • http://spanish.blueoceantechnology.no/uploads/1/3/0/3/130379326/wefedaveregawiko.pdfIn PDF document text
    • http://qisma-game.com/uploads/1/3/0/5/130542870/noluwup.pdfIn PDF document text
    • http://yourkentuckydj.com/uploads/1/3/0/6/130605059/f8e39db6b.pdfIn PDF document text
    • http://cartellas.co.uk/uploads/1/3/0/3/130313422/fd71b60fcbdc.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007548.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7548 7688 bytes
SHA-256: 924d66f6349fd25fd62247628c82e36be16953d7fcc2f0a166d51a5603e18185

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