Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e948189f6938b96…

MALICIOUS

PDF

42.2 KB Created: 2020-03-25 03:59:06 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-08-25
MD5: 4f343762426463f52ef30611c13c8fe4 SHA-1: abba6e4c35356e755db30a34af63d12025acb065 SHA-256: 4e948189f6938b96ae0c4c718fdfa75e5d9a418c9d1a4dd7e4ed903f7dd72dfc
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are dynamically generated and point to seemingly unrelated content, indicative of a link farm or SEO spam tactic. The document body mentions 'Word power made easy review quora' and includes a URL that appears to be part of this lure. The primary heuristic identified a mass external PDF link farm, suggesting the document's purpose is to drive traffic to a network of sites, likely for SEO manipulation or to host malicious content.

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://iamcarpentry.net/uploads/1/3/0/7/130740128/130740128.html#word+power+made+easy+review+quora PDF link annotation
    • http://www.ingridvisseren.com/uploads/1/3/0/3/130324119/roruvegivite-zekomunodogiril-juxozaxakoreka.pdfIn PDF document text
    • http://www.paiperformance.com/uploads/1/3/0/5/130551534/4f87266baa15aa.pdfIn PDF document text
    • http://trfmontpelier.com/uploads/1/3/0/4/130491699/sodisasigaw_xumepuxawuja_gerov.pdfIn PDF document text
    • http://fiveocustomcoolers.com/uploads/1/3/0/6/130639305/kaviminalo_tugeka_kitusasu.pdfIn PDF document text
    • http://cprcallblocker.net/uploads/1/3/0/8/130814960/6d1fa.pdfIn PDF document text
    • http://soulfulpursuits.net/uploads/1/3/1/0/131070116/kebipezod-piborawul.pdfIn PDF document text
    • http://diogenesfilms.com/uploads/1/3/0/2/130287243/kaxonenokututazu.pdfIn PDF document text
    • http://alohaspiritlomilomi.com/uploads/1/3/0/4/130488415/roliwaval.pdfIn PDF document text
    • http://tashyphotography.com/uploads/1/3/0/2/130272859/safokin.pdfIn PDF document text
    • http://uservite.com/uploads/1/3/0/2/130288602/b92f1.pdfIn PDF document text
    • http://adreamyday.com/uploads/1/3/0/6/130604516/5268043b3.pdfIn PDF document text
    • http://antiaginghydrafacial.live/uploads/1/3/0/3/130323178/lovefebomofofezi.pdfIn PDF document text
    • http://befitish.com/uploads/1/3/0/5/130551639/zetudofafubu-majuguni-rikovona-bujapiwe.pdfIn PDF document text
    • http://johnsonprotec.ca/uploads/1/3/0/6/130639632/bivozefarujif.pdfIn PDF document text
    • http://goldenkidsbygiulia.com/uploads/1/3/0/8/130874518/dodogozizuko-zuluduzatud-dudenixaj-vuximekup.pdfIn PDF document text
    • http://jetsettertravelinc.com/uploads/1/3/0/6/130620791/kisipekunagepepi.pdfIn PDF document text
    • http://www.ohyirafour.com/uploads/1/3/0/9/130969539/229068.pdfIn PDF document text
    • http://mrramsay.co.uk/uploads/1/3/0/7/130739113/godugizasunosilile.pdfIn PDF document text
    • http://typeemup.com/uploads/1/3/0/6/130604547/giludalopa.pdfIn PDF document text
    • http://retrofitpersonaltraining.com/uploads/1/3/0/6/130620237/zixagifonuvisu.pdfIn PDF document text
    • http://newcastlenetworkinggroup.com/uploads/1/3/0/3/130312980/4901590.pdfIn PDF document text
    • http://maxbetancourt.com/uploads/1/3/0/4/130489229/652ccbb23bb.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 3

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_off00007732.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7732 9924 bytes
SHA-256: ac4302e86ab0df8e2237f9f4a8ebf162682427cdf16a465ef4112a6711061fe7

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