Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4e365cbb347ec2f…

MALICIOUS

PDF

42.7 KB Created: 2020-08-02 21:19:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4ae7938058213c80f7efa689c18db72d SHA-1: 89d56fa89724ff9a14e411912b4ff973c1a5f791 SHA-256: a4e365cbb347ec2fb2a959d6ab534f449c086eb805414a9dc08c495dbf8f1762
234 Risk Score

Malware Insights

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

The PDF document contains a lure for FedEx shipment authorization, which is a common tactic for credential harvesting. It embeds numerous links, including one to a known malicious redirector at 'ttraff.com'. The heuristic 'SE_MFA_LURE' further indicates that the document is designed to trick users into providing sensitive information, likely for MFA or one-time code harvesting. The presence of a malicious redirector URL strongly suggests the intent to lead the user to a phishing page.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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=fedex+shipment+release+authorization+form In PDF document text
    • http://files.kobanuniverse.net/uploads/1/3/1/4/131438268/pekezaxisodok_sujunasewowazud_fofumebonekawu.pdfIn PDF document text
    • http://files.valleyofthedunes.com/uploads/1/3/1/6/131607029/f69220b930.pdfIn PDF document text
    • http://files.yurrugar.com/uploads/1/3/1/4/131453132/binikidapo_putavaf_pimititipidijun.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0099/3691/files/92558924728.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9058/3464/files/tavatubudupumak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5970/7037/files/rijeniwonapozozuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/95463008471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8741/0840/files/89276624510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7998/2492/files/72_buick_skylark.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8641/9870/files/53815136883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7935/1976/files/52215373030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2316/3801/files/wamupiwowuwuwutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0565/4678/files/98078952429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0489/5143/files/23465424049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8664/1304/files/vufeborixedatemozag.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C34 5236 bytes
SHA-256: 1afff966c3fbde518e9ea0105f59ea330402b5dbda3f538f6c9472713a030b25
font_01_sfnt_off00006de6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE6 9980 bytes
SHA-256: fb499367c345bf9b8cd3ddcea504eff785bfbb29d1b4ebffc1089e7ed91f2f51
font_02_sfnt_off00008ff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF0 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e