Malicious PDF — malware analysis report

Static analysis result for SHA-256 694d692bbcf5c6a2…

MALICIOUS

PDF

75.2 KB Created: 2021-03-28 08:53:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ee1f34aa9100ff0967e944ec97223a78 SHA-1: 4c26fed75fc4506dc2297be379fe585ae65c1d17 SHA-256: 694d692bbcf5c6a2ab990101ed0684c13e61a363bd7c11788ddeb82ee20915c6
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with a critical heuristic identifying it as a link farm. The document body, though partially corrupted, suggests a lure related to 'Avery 5160 label template'. The presence of external URIs and the link farm heuristic strongly indicate a malicious intent to redirect users to potentially harmful sites, likely for phishing or SEO manipulation. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 https://botokaw.ru/123?utm_term=avery+5160+label+template+for+pages
    • https://zodoxofavuzawa.weebly.com/uploads/1/3/1/4/131437464/xadulati.pdf
    • https://bumibaniligaza.weebly.com/uploads/1/3/1/3/131383581/e15eff.pdf
    • https://petugaxuw.weebly.com/uploads/1/3/5/3/135397026/1728384.pdf
    • http://copyrightshelpcenter.com/144_kriya_yoga_techniques4hxjb.pdf
    • https://fomilapemarujan.weebly.com/uploads/1/3/0/8/130814088/4511269.pdf
    • http://reduslim-official.website/tabafonajdqqw6.pdf
    • http://hook-up.fun/pelicula_100_aos_de_soledad_online_gratis3oqi5.pdf
    • https://wenezobu.weebly.com/uploads/1/3/4/6/134625155/06d9d1d87b.pdf
    • https://gepidoduxaw.weebly.com/uploads/1/3/5/3/135324144/5905990.pdf
    • http://on-arenas.com/65471851572fw53n.pdf
    • https://pirodiditabun.weebly.com/uploads/1/3/0/9/130969169/sidedonebujasobuwigu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/sigobija/20358303154.pdf
    • https://s3.amazonaws.com/wivunonovef/how_do_i_become_a_certified_facilitator.pdf
    • https://s3.amazonaws.com/luxelula/mekufukokawogemadovutasix.pdf
    • https://s3.amazonaws.com/lodazojamuva/bakobovufiwiwu.pdf
    • https://s3.amazonaws.com/tufitijinexu/when_is_wings_of_fire_graphic_novel_5_coming_out.pdf
    • https://s3.amazonaws.com/jedadokuti/greedy_cave_nightmare_guide.pdf
    • https://s3.amazonaws.com/xelimewat/what_does_it_mean_when_a_hawk_swoops_down_at_you.pdf
    • https://s3.amazonaws.com/fuzafuzeruwit/17909532838.pdf
    • https://s3.amazonaws.com/kawotexulozax/22622617192.pdf
    • https://s3.amazonaws.com/kosamupim/bnf_online_free.pdf
    • https://s3.amazonaws.com/susonanezaj/grave_encounter_movie.pdf
    • https://s3.amazonaws.com/gawabog/sullair_375_compressor_service_manual.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e37e.bin
606842de6f9e910121c0a57342c75a1f5b212562efa3681928068040d9fcf9a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE37E 5984 bytes
font_01_sfnt_off0000f7e2.bin
cbe0444b7f5e803ef7288e4445cbe57705c12b3106166ae3ea1f309d4e75418f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E2 11168 bytes

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