Malicious PDF — malware analysis report

Static analysis result for SHA-256 a64231d5a40d38c2…

MALICIOUS

PDF

67.9 KB Created: 2020-12-21 23:22:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 7abe7833fc7a44bc78af4b0ea1ac6fa5 SHA-1: 3c7224eb6a2c998f472262f9906f87e190241141 SHA-256: a64231d5a40d38c2afa66c3e4f494b8ed7fcb937f3e7d34ea0602d394e54ae0a
214 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ggtraff.ru'. The document body, though heavily obfuscated, appears to be a lure related to natural pest control, suggesting a phishing or scam attempt. The presence of numerous embedded links, many pointing to external PDFs, indicates a link farm or redirection strategy to obscure the final malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ggtraff.ru/aws?utm_term=ahuyentar+las+cucarachas+de+forma+natural In PDF document text
    • https://cdn-cms.f-static.net/uploads/4413583/normal_5fbe7aa8acc58.pdfIn PDF document text
    • https://zisinifaja.weebly.com/uploads/1/3/4/5/134599776/nokubuxirur.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377095/normal_5f8a350cb90aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368474/normal_5f9d8dd631935.pdfIn PDF document text
    • https://xamurifepugep.weebly.com/uploads/1/3/4/4/134484548/dupigawafiwawej-zuwokepi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393626/normal_5fa971389dc3a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fcf268e0503d17fb24bd8a5/t/5fd65e74491a58544a10a2a5/1607884404837/voodoohda_el_capitan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/747443d5-c1dc-432b-b84e-0e5e4c3a1609/79511270546.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/408b24d1-41de-4d0f-9aa4-354167333b81/wetadipedovo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f2734d3-977b-4c08-bd91-f048fac1db90/bedusi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4f56dd26ff1194f8deacd/t/5fc8beef8bd7793567588fd9/1606991605011/27198493664.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdd3a932dcd53187f1eaf8b/t/5fdd48adef735726d241225a/1608337582766/blur_image_dslr_focus_apk.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdefb29ee0f32b87189b95/1606283187504/ashley_furniture_homestore_cedar_rapids_iowa.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc00a03c6229360eca839ab/t/5fc166375147b1480467fbe8/1606510136466/pejolurejozotamimelexe.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd0ec2b7a66e04eaf76f9b/1606225603734/how_to_cancel_ps_now_and_get_refund.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_off0000cc16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC16 5352 bytes
SHA-256: 2bf1d4db2a8ea2e8b7a68be7921e1edeb5948b4d902a26073e7dd91ab9f99b78
font_01_sfnt_off0000de29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE29 10804 bytes
SHA-256: b79c65d1fdbcf3eded8b18f9ca16bffb17ad65f62e431c35766f1f160a3540e1

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