Malicious PDF — malware analysis report

Static analysis result for SHA-256 3907733a7da808fe…

MALICIOUS

PDF

40.6 KB Created: 2020-08-06 21:56:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6d4e4e7aa8f290c68dbf5712c4670c5 SHA-1: 82c006d541c1981c09cfdbe3fe6473d5ce1c0d29 SHA-256: 3907733a7da808fe3aacfcd29c6f3701a11aac83ef45700c943e751ee399439c
194 Risk Score

Malware Insights

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

The PDF file contains a lure related to a "Barangay clearance application form" and embeds numerous external links. One of these links, `https://ttraff.com/pify?keyword=barangay+clearance+application+form+pdf`, is identified as a malicious redirector. The document also exhibits parser evasion techniques and a structure indicative of a link farm, aiming to distribute malicious payloads or lead users to phishing sites. The presence of multiple Shopify-hosted PDF links suggests an attempt to obscure the true malicious destination.

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.com/pify?keyword=barangay+clearance+application+form+pdf In PDF document text
    • http://files.pxdlabs.com/uploads/1/3/1/6/131606094/zogazulejiv.pdfIn PDF document text
    • http://files.techviews.online/uploads/1/3/2/6/132680813/loxidemigimogebegasa.pdfIn PDF document text
    • http://files.michaelpoznansky.com/uploads/1/3/0/7/130775998/54684aa35.pdfIn PDF document text
    • http://files.thelandscapearchitects.com/uploads/1/3/0/7/130775357/1e7798fdbc.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/1/0438/5167/7856/files/43669796347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3609/0267/files/vuxufuposaxuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5197/3799/files/93477488878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3526/3130/files/logotuxuvubazizuvobaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0270/7616/files/la_la_land_audition_sheet_music_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3972/7509/files/just_one_night_gayle_forman.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/wekufagogifuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8705/3471/files/35680337273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4021/9041/files/murray_lawn_mowers_manuals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4864/0418/files/kuwosora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5926/5188/files/85114565971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nofalefupipalivudekim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/rajurubabonagiximimak.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60CD 5448 bytes
SHA-256: 28330d98fbe031e222227ff840c431efc062fc59b271bf2ed5e136d08d8a41ce
font_01_sfnt_off0000734c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x734C 9952 bytes
SHA-256: 14c4b87e365736dea1bb07a0c29930ee31a8be9a600ca2a3069e184830a6a608