Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4c3729b6cf412e5…

MALICIOUS

PDF

80.8 KB Created: 2020-08-21 10:59:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0bd1d57d7b8a40595b87cb99722aed37 SHA-1: ae10cbbd08ef74503855ea1f3d4900c1e6aa24b6 SHA-256: e4c3729b6cf412e58212c04896dfbd3e09b99e22d02074715e6f47dcac0e0a55
214 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains, and one critical link to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for 'Diablo 2 merc guide'. The presence of a callback phishing lure heuristic further supports the scam-like nature of this document. The primary attack pattern involves tricking the user into clicking a malicious link, which then likely leads to a phishing page or further malware download.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=diablo+2+merc+guide+1.+13 In PDF document text
    • http://lemizufon.celestejohnsonlpc.com/uploads/1/3/0/9/130969264/79f2606c.pdfIn PDF document text
    • http://xupisem.cuisinierequipment.com/uploads/1/3/1/6/131607600/zasitodi.pdfIn PDF document text
    • http://nezope.takeyourchancetravel.com/uploads/1/3/1/6/131637240/889859.pdfIn PDF document text
    • http://files.bestkidsmentoring.org/uploads/1/3/1/6/131637841/3627584.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/1/0430/5174/5442/files/vexofidobeporenafaseporo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7960/5147/files/astrophysics_for_someone_in_a_hurry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4116/9309/files/sasejadigopavapadite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4042/3592/files/unlimited_keys_and_coins_for_subway_surfers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3599/8880/files/77260636141.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7606/6207/files/42641559240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1856/6306/files/ligukabaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6343/5679/files/dafujakofezovalul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/1021/5323/files/jadual_caruman_kwsp_8_peratus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2417/0664/files/tafib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5794/6522/files/dreamweaver_cs3_portable_kuyhaa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9804/4568/files/68720485983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3151/7605/files/11085760692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1175/8504/files/jovukajugarufikizipunori.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_off0000ff75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF75 5600 bytes
SHA-256: 0098ce7157314cff4d55368fda1710e6d6490ecf05dba340e2c047659defac22
font_01_sfnt_off00011268.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11268 10360 bytes
SHA-256: 97dbee2fb2ef864f6ca3c82ff5731eb9d74d00748b2f64ddf22f899948c0ba58