Malicious PDF — malware analysis report

Static analysis result for SHA-256 69ae827ada86a747…

MALICIOUS

PDF

41.0 KB Created: 2020-03-31 08:57:37 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 22671a1bb73b79d44a1bd2086f64b7b6 SHA-1: 016de554400a2bd100d8682ff531b34ee0330a92 SHA-256: 69ae827ada86a747c989dd6570be0420d1952b158731e6e73f71bd12f2cc55ce
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous embedded links to external websites, disguised as a washer dryer combo owner's manual. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of these links, suggesting a link farm or SEO abuse tactic. The ML classifier also strongly flagged this PDF as malicious. The embedded links likely lead to further malicious content or phishing pages.

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://mysaphi.com/uploads/1/3/0/2/130271124/130271124.html#ge+washer+dryer+combo+owners+manual
    • http://oakandiris.com/uploads/1/3/0/2/130272880/5055493.pdf
    • http://mindsetwellnesscoaching.org/uploads/1/3/0/5/130539437/wusimilixegi_wizobezedewebe_rurowes.pdf
    • http://katyhomebirthmidwife.com/uploads/1/3/0/7/130739740/totojokuzi.pdf
    • http://myearlylearningbox.com/uploads/1/3/0/5/130543264/zebosidaduwokumo.pdf
    • http://howatt-bio.com/uploads/1/3/0/9/130969980/rexudagapuwatazulob.pdf
    • http://captiv8photography.com/uploads/1/3/1/4/131437061/741928.pdf
    • http://yingdesignstudio.com/uploads/1/3/0/5/130545998/223814.pdf
    • http://missbehave.website/uploads/1/3/0/8/130813427/7370117.pdf
    • http://reddoor-homestaging.com/uploads/1/3/0/2/130271001/dilobarode_xopugavovu_dukofupazusaruj.pdf
    • http://yom-maste.com/uploads/1/3/0/6/130621503/9062875.pdf
    • http://smsystemspteltd.com/uploads/1/3/0/6/130622005/wuvunevegixexi-vokivegi-gupesobasukedul-tagizusowak.pdf
    • http://libbypellerin.com/uploads/1/3/0/5/130590298/zarugavuwilimove.pdf
    • http://memoirsofatechnocrat.com/uploads/1/3/1/1/131163914/vapifi.pdf
    • http://richalanphotography.com/uploads/1/3/0/2/130287318/78ccc62f.pdf
    • http://the1776.us/uploads/1/3/0/4/130435574/8904270.pdf
    • http://2ndnaturenashville.com/uploads/1/3/1/3/131379548/mixorawirinewo.pdf
    • http://tugfordogs.com/uploads/1/3/0/5/130550914/pelewodadorafixu.pdf
    • http://frenchyconstructions.com/uploads/1/3/0/4/130476152/9d1f7d5149c53.pdf
    • http://indumentis.net/uploads/1/3/0/7/130739480/4fc277.pdf
    • http://tiffanybellah.com/uploads/1/3/1/3/131380730/1983f7a8966d3f.pdf
    • http://happytrailsdogwalkers.com/uploads/1/3/0/7/130775632/zekagonur_zunukodozub.pdf
    • http://tulsaheli.com/uploads/1/3/0/7/130738666/sifixelelikuje_wapupowom_riwita_zugaxegowid.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_off000075ee.bin
ccf787cedbad56c06ecf262a4e41f6b475421ae7fd3140377514d1243f6f09a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75EE 8408 bytes

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