Malicious PDF — malware analysis report

Static analysis result for SHA-256 3877c1d0474eeb0a…

MALICIOUS

PDF

39.1 KB Created: 2020-08-25 09:42:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03bf30e51a7385f80beb02f81b5af9fc SHA-1: a38e5d9630e659d57e19047ad68bb6987d8b6cc6 SHA-256: 3877c1d0474eeb0a8ab8b22ee1e3687bb7a9be2b83cca58409d34a9587d8544d
162 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc' with a lure related to a 'bullet force laptop'. This indicates a likely phishing or malware distribution attempt. The document also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic to obscure the malicious redirector. No scripts were extracted, but the presence of the malicious redirector and the lure strongly suggest the document's purpose is to lead the user to a harmful site.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=bullet+force++laptop In PDF document text
    • http://files.olddonationband.com/uploads/1/3/0/8/130814430/garowagoxuvut.pdfIn PDF document text
    • http://files.stuartjmurphy.com/uploads/1/3/0/7/130775228/serobewijun.pdfIn PDF document text
    • http://rupig.fromtherib.org/uploads/1/3/0/8/130814769/8418443.pdfIn PDF document text
    • http://gosoxerad.sevinjanephotography.com/uploads/1/3/0/8/130874104/4dc55.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/1/0428/9835/8432/files/tivaluzisezulumavolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4255/9384/files/46280718566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/38417548939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3340/3285/files/world_of_warcraft_rpg_monster_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5951/9387/files/42100110191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4173/4311/files/bokevete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/xifilejulologowagaroga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/kawasaki_z125_pro_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4263/3890/files/aisatsana_aphex_twin_sheet_music.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ccd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CCD 4880 bytes
SHA-256: 6822f6b2dcaed2de5560bd29e2eb22bb349a01441c5d32e2865b50bb17f88446
font_01_sfnt_off00006d7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D7D 10096 bytes
SHA-256: e0e2e15c2abf4b535e61d57a22a37cca29a6952f1774956e6f6616832707820b

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