Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3bac6dcae460ed0…

MALICIOUS

PDF

41.3 KB Created: 2020-11-04 02:14:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ca4784c1d08f6d664ebe143ee043478 SHA-1: 1c0ed5c5a82a6327adf2df85335446993060f26d SHA-256: e3bac6dcae460ed086369c69b63a25d4c8a7386c7867cde06d58be1b8766695e
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure. The embedded URL points to 'ggtraff.ru', which is flagged as malicious. While no scripts were explicitly extracted, the PDF structure and embedded link suggest an attempt to lure the user to a malicious site, likely for phishing or malware delivery. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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/123?keyword=navy+jrotc+rank
    • https://lisewukalog.weebly.com/uploads/1/3/4/4/134435391/diborabipesusuba.pdf
    • https://vujuzujotug.weebly.com/uploads/1/3/4/4/134478410/69293c.pdf
    • https://cdn-cms.f-static.net/uploads/4416665/normal_5f96faa368a65.pdf
    • https://bagubabijotete.weebly.com/uploads/1/3/4/3/134319258/wipixikinudus.pdf
    • https://cdn-cms.f-static.net/uploads/4410443/normal_5f9c83abdbec3.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/vigevot/omc_cobra_repair_manual.pdf
    • https://s3.amazonaws.com/vixuwogetiv/fixobatoxuletisuwowi.pdf
    • https://s3.amazonaws.com/ruzumeb/multiples_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0266/9736/7734/files/64243378299.pdf
    • https://s3.amazonaws.com/jolituzoji/vobileguwusi.pdf
    • https://cdn.shopify.com/s/files/1/0501/2874/8739/files/toluvafodepitowunol.pdf
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000586b.bin
b7437cf128cdc868214b87c50c339aea703db71f31bdc9561af3e0ce1dad2182		 pdf-font-stream PDF embedded font (sfnt) at offset 0x586B 4476 bytes
font_01_sfnt_off000067bd.bin
8c76522743c26a56eb0f9ed5e97cf4d1e84279dc11915a166ae1a9bca211c580		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67BD 10520 bytes
font_02_sfnt_off00008aee.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AEE 4324 bytes

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