Malicious PDF — malware analysis report

Static analysis result for SHA-256 06b33a40a054d527…

MALICIOUS

PDF

42.9 KB Created: 2020-04-23 11:00:07 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: afbb14110565ec78ab798a8853641270 SHA-1: cd349fb1c0155db14227e42702dd5cddc150c893 SHA-256: 06b33a40a054d5277883f5fe7163a7a6d3549e66e54767e95932aa3ad71ee1c3
104 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are structured as a link farm, suggesting a malicious intent to redirect users. The document body, though heavily obfuscated, contains a URL that appears to be a lure for movie downloads, which is a common social engineering tactic. The ML classifier strongly indicated maliciousness, supporting the assessment of a link-farming or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://bernardogomezcortazar.com/uploads/1/3/1/4/131454699/131454699.html#chhello+divas+full+movie+free++pagalworld
    • http://ricardomartinez.ca/uploads/1/3/1/3/131380297/fapirow_vepij_fezixi.pdf
    • http://loveisthewayhome.com/uploads/1/3/0/2/130273791/9939082.pdf
    • http://yourh3meals.com/uploads/1/3/1/0/131070880/4669233.pdf
    • http://happilyhooked.net/uploads/1/3/0/4/130489418/xajixagiporif.pdf
    • http://brushfirebuilt.com/uploads/1/3/0/3/130379205/3b27bca83fad7.pdf
    • http://visionhousecomm.com/uploads/1/3/1/4/131453143/cb6556f007.pdf
    • http://judyforester.ca/uploads/1/3/1/6/131637774/1287949.pdf
    • http://nwconveyance.com/uploads/1/3/0/6/130621794/9dbcb6c.pdf
    • http://ivideoparty.com/uploads/1/3/0/3/130313299/ecb01cd1a.pdf
    • http://ethicalfreshveganskincare.com/uploads/1/3/0/3/130324227/4775155.pdf
    • http://drawndialogues.com/uploads/1/3/1/4/131453832/fikipopaj.pdf
    • http://jaxcopy.com/uploads/1/3/0/6/130604986/xitidipulisoraka.pdf
    • http://morganadvisory.net/uploads/1/3/0/4/130483508/3384186.pdf
    • http://myrole.legal/uploads/1/3/0/5/130550785/lojetogamipasu_teranedenutepet_difareg.pdf
    • http://fedorahosted.org/lohit
    • 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/
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005984.bin
1969a5c89f07de185ea8bbebf0eb6d5ed77612d026c35a42277f642fe899a395		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5984 7580 bytes
font_01_sfnt_off00007762.bin
1723f1ced37cc89d69e30f3df6281c5e5fb8989544fd4587aa75b00c91af2fd0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7762 1388 bytes
font_02_sfnt_off00007ec8.bin
e0e3c17e77d4e8eb6c15310c6c8e4d0b1bb105d92337a8b1fee52ec7364f50f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC8 11064 bytes

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