Malicious PDF — malware analysis report

Static analysis result for SHA-256 df7c1b941e9da2d2…

MALICIOUS

PDF

45.1 KB Created: 2020-09-20 05:03:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dd91e48dfcd72a68b5215a0956239ffd SHA-1: 7c64d56f4db07234c6ed575f8d8d67ea169bd10a SHA-256: df7c1b941e9da2d2f9480925cf8fc44aae939f9c071ae89bb14f7bf5f9939099
204 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF contains a mass external link farm, with one URL pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'Everest cash advance phone number' and includes multiple embedded URLs. This suggests a callback phishing or tech-support scam pattern, where the user is prompted to call a number or visit a link under the guise of financial assistance or a refund, likely leading to credential harvesting or financial fraud.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.me/wix?keyword=everest+cash+advance+phone+number In PDF document text
    • http://files.thewholechildmatters.org/uploads/1/3/2/7/132740564/4021894.pdfIn PDF document text
    • http://gonir.jayanthibunyan.com/uploads/1/3/1/0/131069839/jagevataxerugego.pdfIn PDF document text
    • http://ramewe.hisonelife.com/uploads/1/3/1/8/131856819/6331315.pdfIn PDF document text
    • http://files.babsbeadwarehouse.com/uploads/1/3/1/0/131070166/2939725.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://c174736c-6351-4459-a705-5efbf4d7cd02.filesusr.com/ugd/b13fd1_1dba33403f574b459664ba5c286c4c52.pdf?index=trueIn PDF document text
    • https://659ecc6d-963a-4c94-8868-204a0ddcaaa3.filesusr.com/ugd/3402b1_973ec7c6dcc8417384ab69be40e20a09.pdf?index=trueIn PDF document text
    • https://5bea9a7a-f729-426b-844b-4f8f764f737a.filesusr.com/ugd/607883_aeb8d7e9b0ac4144a726b7aad820bd84.pdf?index=trueIn PDF document text
    • https://ac6aa113-f767-4681-ad57-533927e20df9.filesusr.com/ugd/c8683e_c8e39df8b9a94e3c9ca7ffff9f61c3b1.pdf?index=trueIn PDF document text
    • https://64448114-0f6c-4f32-a8cd-f4a058e5136f.filesusr.com/ugd/1ebe14_a6d22de262294df8a55b248c9660bb2b.pdf?index=trueIn PDF document text
    • https://54ed788f-bd56-4173-ab0f-b1c7030d2fe4.filesusr.com/ugd/8da65f_ba0904babb9b45b8a6ebf727b0c6c53b.pdf?index=trueIn PDF document text
    • https://b9a5cfdd-7a68-40c8-aeec-fa24d78fca37.filesusr.com/ugd/b81754_19f0c0d2288b414d8a01fcdc5555c846.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6640/9639/files/70368815595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8107/8686/files/lupedevixosajufud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5759/4011/files/lejusuxetexuxinon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5871/6055/files/19185706728.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8529/1937/files/savuwamabopitukim.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_off00006f8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F8D 5440 bytes
SHA-256: 680ca0bf186de6f45ceb87875a0017074305cb5dbf99ade5967c6a01b01ffefd
font_01_sfnt_off000081e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81E4 10952 bytes
SHA-256: 86ca66fa6a4e058a9aaf492ccc0ff1c313747790f2fa57be87d421c575067c77