Malicious PDF — malware analysis report

Static analysis result for SHA-256 da36030b77ceb8ef…

MALICIOUS

PDF

41.6 KB Created: 2020-08-15 15:16:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: beb4c5a4cdf74f9917ae444daca51629 SHA-1: 3fd74344620289739b668b0e4ad853ffb5f4b85f SHA-256: da36030b77ceb8effb398ebb02066b4d31462914964942745c3ed66042dafb5c
202 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating an attempt to lure users to malicious content. The document body, though obfuscated, contains text related to job applications and includes the primary malicious URL. The presence of numerous PDF links suggests a SEO poisoning or link farm tactic to distribute the malicious payload.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wb?keyword=example%20of%20job%20application%20letter%20in%20tanzania%20pdf In PDF document text
    • http://files.hotelbythepark.com/uploads/1/3/0/7/130775195/movagilab-kixaso-medorodafugaxu.pdfIn PDF document text
    • http://files.flvetbehavior.com/uploads/1/3/1/4/131454151/zitut.pdfIn PDF document text
    • http://files.prettycardsandmore.com/uploads/1/3/2/3/132302892/josenolufepu_xodanakiza_kepinilebigoma.pdfIn PDF document text
    • http://moduvoro.aloenottingham.com/uploads/1/3/1/3/131380942/rubinulobowale.pdfIn PDF document text
    • http://files.eternalimpactmissions.org/uploads/1/3/1/0/131070207/d4ca2.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/44411244229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5395/7799/files/50494896794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4840/2081/files/11141711814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1870/6341/files/75351489744.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6374/6465/files/10655443406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8778/2297/files/gedix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7573/9560/files/acronis_true_image_2018_bootable_usb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8404/4705/files/arduino_programming_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4890/2560/files/archaic_words_dictionary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6690/8054/files/barth_commentary_on_romans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4823/8242/files/airport_time_capsule_user_manual.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 8

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_off00006430.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6430 5416 bytes
SHA-256: 972c8e2af8c32d6a4c04fb3138c0e5ac1860860ee52471c49c5d23e46afa35f2
font_01_sfnt_off00007694.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7694 10060 bytes
SHA-256: 2a07452fbe5a833b950b413f4e35f5d5cb06f74e9aace8b73627963da3cd8d76

Open this report in the interactive analyzer, or submit your own file for analysis.