Malicious PDF — malware analysis report

Static analysis result for SHA-256 d778705ddc55b147…

MALICIOUS

PDF

45.3 KB Created: 2020-08-13 16:55:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 72c12e1d8f3bd337c7b2bec64d0417a8 SHA-1: 5981b8d11419bc32293759bff45b261b8402446d SHA-256: d778705ddc55b147d2c1bc2a675df05a39f834dc5f7d964f35aedcd2dc168cb9
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a known malicious redirector. The document body, though partially corrupted, contains text related to 'effects of war on environment pdf' and a URL that appears to be part of a link farm designed to manipulate search engine results. This suggests a social engineering tactic to drive traffic to malicious or compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://ttraff.cc/wb?keyword=effects%20of%20war%20on%20environment%20pdf In PDF document text
    • http://fasufa.lane8gamingstudio.com/uploads/1/3/0/8/130814328/foponot.pdfIn PDF document text
    • http://files.teachingconnections.net/uploads/1/3/1/6/131606396/pejemopegoj_nusupevagiz_lufalusovomasiv_ravigej.pdfIn PDF document text
    • http://files.zandugandzic.com/uploads/1/3/0/8/130874683/wikilaluvifisufuk.pdfIn PDF document text
    • http://files.movementandmeaning.com/uploads/1/3/1/8/131856757/boxisifavab.pdfIn PDF document text
    • http://zofufef.athleticadvantagellc.net/uploads/1/3/0/7/130776031/1924520.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/notupofopoxapujidoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6987/4082/files/dubamaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3426/2169/files/vusijekimokupesemusovevax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5012/3932/files/tre_et_avoir_au_futur_exercices.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6067/2165/files/unholy_dk_rotation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1320/9246/files/29862790929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54341666742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5560/4121/files/mofidusex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1402562920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8448/8607/files/quartz_group_of_minerals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5511/1589/files/nipaxusapebozovibomula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2492/5351/files/rizosuzisawitutigevewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4077/5064/files/62285381680.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
    • http://scripts.sil.org/OFLIn PDF document text
🗂 Part of campaign: galleriasaba.com 6 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000714d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x714D 5380 bytes
SHA-256: 1f2ce9180eacf73fad5f142462ece6d33036d098df11182844490b8f0e821c0b
font_01_sfnt_off00008398.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8398 10820 bytes
SHA-256: a100b0b62798bdc21702e629c5e0b204ed444fc5204081cbc48b8dd5de79f531