Malicious PDF — malware analysis report

Static analysis result for SHA-256 00e72e42a59ddb21…

MALICIOUS

PDF

41.7 KB Created: 2020-09-17 19:48:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69ca8dbe6666ec20bce0ee961cccfa50 SHA-1: 322461deab6b2462780183cfd0befb32871c0c14 SHA-256: 00e72e42a59ddb217a26f28aa77251beacd90a5960d1403cc71f8d75f9767e01
154 Risk Score

Malware Insights

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

The PDF document contains a link farm and a malicious redirector URL, disguised as a manual for a Kitchenaid appliance. The primary malicious link identified is https://ttraff.link/wix?keyword=kitchenaid+model+k5sswh+manual, which likely leads to a further malicious destination. The document's structure and embedded links strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.link/wix?keyword=kitchenaid+model+k5sswh+manual
    • http://nefunej.greaterhudson.org/uploads/1/3/0/7/130776485/48c6b98586fe3.pdf
    • http://files.marinwoodturningandcompany.com/uploads/1/3/1/4/131408502/9390999.pdf
    • http://winosav.jeanettebroxmccarthy.com/uploads/1/3/1/6/131607600/vogojigigubatipi.pdf
    • http://files.11across.com/uploads/1/3/0/7/130738619/mopupolel.pdf
    • http://files.slycoopernet.com/uploads/1/3/0/7/130776268/wijuveko-desezebefawu.pdf
    • http://gimuxun.grandhavenlegion.org/uploads/1/3/0/8/130874250/deragalut.pdf
    • http://jepesu.saaea.org/uploads/1/3/0/8/130814935/naroda-gizoteko-garobej-gebefaduwojo.pdf
    • http://files.clx209.com/uploads/1/3/0/7/130740138/dumen.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://69c2cacd-75ac-44a6-b516-cdbc9f5fbaa9.filesusr.com/ugd/3225da_a4c07dd387e84a619448ca1d12a80edf.pdf?index=true
    • https://fc00db4a-e252-4578-9f4b-a855974103a5.filesusr.com/ugd/668a47_cbbe7a04bdf0486b8b4f57727beaed6d.pdf?index=true
    • https://209ff6d8-2e96-461b-90da-28db2995cf20.filesusr.com/ugd/74e905_f84ac2b9233b42668a9b0fc4e44d1563.pdf?index=true
    • https://5634c31a-27fa-4ee1-a0cb-44befd9d8463.filesusr.com/ugd/a8ca0f_50ceabe50d104e9799a511756689fd0c.pdf?index=true
    • https://96356816-63f8-4ee9-b5df-dd722fb2d556.filesusr.com/ugd/7baf93_11a1db5e55444ad3ac037ec6f57a8e1a.pdf?index=true
    • https://23a181b1-7f42-4bad-a7aa-55ae99d0e373.filesusr.com/ugd/e32576_bac3ade2dc9d4a668aea607b399dd7ae.pdf?index=true
    • https://701a4289-99d5-47d3-97b6-0d3c5e00dbb6.filesusr.com/ugd/e3834b_bab076e3f5784e9fb3f3ff1f48e39103.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006457.bin
f11e2d9d101188b2166ccc08fc31f82ebcc68a5b7e3b0d4e8fc6eb1ff3d37761		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6457 5332 bytes
font_01_sfnt_off0000766c.bin
e2e8184192b203fb63889fdd28e848f86b9ace0dd268c61ae8f26d219123d97a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x766C 10416 bytes

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