Malicious PDF — malware analysis report

Static analysis result for SHA-256 67fe257777f0750a…

MALICIOUS

PDF

42.9 KB Created: 2020-08-10 18:45:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af420fbae6346028198fa8ecf25dd8fa SHA-1: a9a139e1adcb01c0c51c7db9fcd155a172231a8a SHA-256: 67fe257777f0750ad682948a7e0650376fed1df7dd7bb95dbc19e91358ba441c
162 Risk Score

Malware Insights

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

The PDF contains numerous links, including one identified as a malicious redirector, suggesting a phishing or scam attempt. The presence of a 'download button' heuristic further supports a lure-based attack pattern. While no scripts were directly extracted, the PDF structure and embedded URLs indicate an attempt to redirect users to potentially harmful content, likely for further exploitation or malware delivery.

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.
  • 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
  • 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/pify?keyword=online+bmp+image+to+pdf+converter
    • http://nagefa.andreasalem.com/uploads/1/3/1/0/131070450/470822913.pdf
    • http://files.muralfx.com/uploads/1/3/1/4/131437891/kupopotetewamug-pugekig.pdf
    • http://files.learningmn.org/uploads/1/3/0/7/130738875/milegubin_risuxadatope_dixutitu_mifezibetako.pdf
    • http://risezor.bundleitsg.com/uploads/1/3/1/8/131856333/1874521.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/7839/3762/files/best_f2p_money_making_osrs.pdf
    • https://cdn.shopify.com/s/files/1/0440/1584/5541/files/wazolefuwejegoguzefo.pdf
    • https://cdn.shopify.com/s/files/1/0437/0841/6165/files/tuwadam.pdf
    • https://cdn.shopify.com/s/files/1/0437/5537/2695/files/88239760988.pdf
    • https://cdn.shopify.com/s/files/1/0454/7464/4120/files/barron_s_gre_3500_word_list_free_download_12th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0437/8296/3361/files/55722934249.pdf
    • https://cdn.shopify.com/s/files/1/0430/0485/4426/files/43986648409.pdf
    • https://cdn.shopify.com/s/files/1/0429/9672/7961/files/hotel_california_lyrics_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0438/8998/3640/files/xepewuzakitiwuxuze.pdf
    • https://cdn.shopify.com/s/files/1/0433/9879/1329/files/venuzenu.pdf
    • https://cdn.shopify.com/s/files/1/0437/9767/6192/files/10533713331.pdf
    • https://cdn.shopify.com/s/files/1/0429/1425/0919/files/gosigipigakaramazeneri.pdf
    • https://cdn.shopify.com/s/files/1/0429/0645/2127/files/92947532887.pdf
    • https://cdn.shopify.com/s/files/1/0431/6299/2801/files/49729328304.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_off0000679b.bin
2b05ee866f7425df644df514c199bc51f4bba34ba0e87d612a69f2220a261202		 pdf-font-stream PDF embedded font (sfnt) at offset 0x679B 5524 bytes
font_01_sfnt_off00007a4a.bin
de1899fd3c1ecefcf1bf367970c7a4541f75153d69025ba23cef39a21b526909		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A4A 10720 bytes

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