Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e7a7a58a4425efc…

MALICIOUS

PDF

44.6 KB Created: 2020-08-21 12:44:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0102d8da55eef55fda2c44ebdef20747 SHA-1: 0c9223e76b8bf50bb2f105efac1525450ff5eae9 SHA-256: 3e7a7a58a4425efcc513d9544e5e869191a271527dd390d775bcf172e3976c5d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged as malicious due to a high number of embedded links, many of which point to redirector infrastructure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=bot+liker+app, which is likely used to funnel users to further malicious content. The presence of a large link farm suggests an attempt to game search engines or distribute malicious links broadly. No scripts were extracted from this sample, but the PDF structure itself is the delivery mechanism.

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/pify?keyword=bot+liker+app In PDF document text
    • http://bigofipe.auscamfreedomproject.org/uploads/1/3/0/7/130739720/gotumabotesifu.pdfIn PDF document text
    • http://sidodow.figsandfeathersfarm.com/uploads/1/3/1/4/131407995/9516883.pdfIn PDF document text
    • http://files.rayouyang.org/uploads/1/3/1/3/131380341/22632af.pdfIn PDF document text
    • http://files.thecharmerwpb.com/uploads/1/3/2/3/132302940/mozovafikimus_vabanibemoweso.pdfIn PDF document text
    • http://files.trvea.org/uploads/1/3/2/8/132815367/8399883.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/1/0437/5887/8881/files/a_league_tv_guide_for_tonight.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2417/0664/files/viwolemam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7983/4531/files/south_african_traditional_recipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6120/6422/files/characteristics_of_africana_womanism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/15768349902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1420/1250/files/monsoon_theme_kitty_party_games_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8385/8073/files/43517794342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6428/5601/files/50287885139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4433/8838/files/algebra_1_practice_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3642/5883/files/kigakenawawodewobam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/6466881430.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB8 6744 bytes
SHA-256: 0eac1552a6a0cc8d6d43e14f5c157d052ff2bf21460314f67a2c213e0a454e63
font_01_sfnt_off00006d9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9F 4748 bytes
SHA-256: bf469a2caede41694b9403400f09defaf8a7ee3255c45ebe095d99bcd53bc89d
font_02_sfnt_off00007dd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD0 12892 bytes
SHA-256: 96918767fe17be6dea8b4e2481fdd56bccb819d8c6b50793be6341539e611407