Malicious PDF — malware analysis report

Static analysis result for SHA-256 f527f0ef73cb490c…

MALICIOUS

PDF

41.4 KB Created: 2020-03-30 10:24:19 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 1927cd804c55828713569683bb3fc216 SHA-1: 31a20044aba36a112d3624d18b8b28792628c742 SHA-256: f527f0ef73cb490c9065595467c1ded983b444ff9bd3e2a48a779341fdd33d95
94 Risk Score

Malware Insights

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

The PDF document contains numerous external links, a common tactic for SEO link farms. The primary link suggests a digital marketing PDF download, but upon inspection, it leads to a collection of other PDF files hosted on various domains. This indicates a social engineering attempt to drive traffic to a network of potentially malicious or spam-related websites.

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://aldensuites.devsite-1.com/uploads/1/3/0/5/130545189/130545189.html#understanding+digital+marketing+pdf+download
    • http://daytonbathrenovations.com/uploads/1/3/0/4/130483638/efacac007b.pdf
    • http://danielmachine.store/uploads/1/3/0/5/130541272/volemidugaju.pdf
    • http://upperperktennis.com/uploads/1/3/0/7/130776273/4528876.pdf
    • http://bobbimccurdyphotography.com/uploads/1/3/0/6/130620835/noved.pdf
    • http://worldification.com/uploads/1/3/1/3/131379858/nitapipiku.pdf
    • http://9f60bbd003.com/uploads/1/3/0/9/130969708/9381909.pdf
    • http://coreeastend.org/uploads/1/3/0/9/130969489/b3a6ed17ca7cf.pdf
    • http://dearpublicsphere.com/uploads/1/3/1/0/131070246/308653.pdf
    • http://aracal.com/uploads/1/3/0/6/130639741/1202829.pdf
    • http://maggieakins.com/uploads/1/3/1/3/131384709/rovisavejox_nezajalazub_femowe.pdf
    • http://www.peoplenatureconnection.net/uploads/1/3/0/6/130640208/binalovewujun-gazor-wubejeguxawu.pdf
    • http://cyfairbrigade.net/uploads/1/3/0/6/130604940/rilixojeto_pawol_raxevirewav_jivobukaxo.pdf
    • http://apart.nu/uploads/1/3/0/4/130476691/muregu_difekapige_xusalolude_nofekolipawisol.pdf
    • http://ancient-hearts.com/uploads/1/3/0/4/130476152/vazipabazunelesenoj.pdf
    • http://lifeinsurancesalesnetwork.com/uploads/1/3/0/4/130476661/ninaxapebowex.pdf
    • http://socialmediaflux.com/uploads/1/3/0/2/130274097/rigixopof-ratar.pdf
    • http://lorenzofiamma.net/uploads/1/3/1/3/131384432/pexixase-tivixifat-bijiluk-fokivaz.pdf
    • http://karenjevons.com/uploads/1/3/1/0/131070525/d3831209102.pdf
    • http://viridianair.net/uploads/1/3/1/0/131070398/6a41987.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007740.bin
1d36bbb09cc9c40e7142df374e4047353f8571bbd0e08bc655830939026f3c44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7740 8644 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.