Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4f7b9e71d1596cb…

MALICIOUS

PDF

111.0 KB Created: 2020-08-25 03:02:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3408f48899fb20d6f200fd0d9847a19c SHA-1: bb934ba5da647bf38d65d4534859e899a7bf2cf6 SHA-256: c4f7b9e71d1596cb11122061f8435f4748c6835398dc2de441517ce5a0606480
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=a+k+47+gun+full+form'. Additionally, it exhibits a link farm behavior with numerous external PDF links, including one hosted on cdn.shopify.com. The document also contains a lure for remote support tools, suggesting a social engineering pretext. The combination of these factors indicates a malicious document designed to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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.com/pify?keyword=a+k+47+gun+full+form In PDF document text
    • http://files.heberwildhorses.com/uploads/1/3/1/8/131871518/mivulexomex.pdfIn PDF document text
    • http://files.stannshohola.org/uploads/1/3/2/6/132695832/jenimepodemiseveranu.pdfIn PDF document text
    • http://files.chloedaniellewhite.com/uploads/1/3/0/8/130814902/6760256.pdfIn PDF document text
    • http://files.durgansc.com/uploads/1/3/1/8/131871587/325cab.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/1/0434/3526/2104/files/65217965096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2571/8678/files/xomamelafisepuwonejub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5042/5753/files/22763463149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/fuwupupowuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8761/8463/files/tovipen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7744/9366/files/kofufozeganisuxoxupifuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6322/1155/files/34582413912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9033/7189/files/jimixuxasez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9096/0799/files/small_smiley_face.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/2998/7234/files/free_tv_series_and_movies_sites.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1218/5499/files/biodata_format_for_marriage_for_hindu_boy.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000158f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x158F9 4920 bytes
SHA-256: be30c774e0b4585016ea2c200353930f4e9398ff52b3fdc796101f123eb01364
font_01_sfnt_off000169b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x169B8 15484 bytes
SHA-256: d26d1939aab15dc1786fec19f3bb5d846e3b0b8c9913b7f176cbc91cf8c43fa8
font_02_sfnt_off000199fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x199FA 16060 bytes
SHA-256: 713933360072c9d59346590fad668f98c3603c6d2b72ed941ce85481f6af0b74