Malicious PDF — malware analysis report

Static analysis result for SHA-256 1da3cc01f08333ca…

MALICIOUS

PDF

131.8 KB Created: 2020-08-11 05:02:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f1a74797ba13b9c9087f9374f5131f4a SHA-1: 890578255644a7a447aa6d4924f791e03a51b615 SHA-256: 1da3cc01f08333ca01c2df0c0b6cde38597851d68f829464931bde935c36e1a7
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF contains a mass external link farm, with many links pointing to Shopify domains, likely for SEO manipulation. One critical heuristic indicates a PDF link to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=600+pares+biomagneticos+pdf'. This suggests the primary goal is to redirect users to a malicious site. The ML classifier strongly supports the malicious nature of this PDF.

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.ru/pify?keyword=600+pares+biomagneticos+pdf
    • http://files.graceandhopeconsulting.com/uploads/1/3/0/8/130874295/gotinen.pdf
    • http://files.neckerscompany.com/uploads/1/3/0/7/130775245/43dc0e64b33cd29.pdf
    • http://files.hogwartsoffairhope.com/uploads/1/3/0/7/130740465/nejesaniri-metutavadadifin-kuripinufabov-wekuse.pdf
    • http://lasaweko.nativitiesfromaroundtheworld.com/uploads/1/3/1/3/131380005/gawoborago_nibozawolamuxow_ravezimigeval_totad.pdf
    • http://files.mccarneymusicstudio.com/uploads/1/3/1/4/131438299/pilikedox.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mozesuseb.pdf
    • https://cdn.shopify.com/s/files/1/0429/6150/2362/files/bogamagilometamofipuvawi.pdf
    • https://cdn.shopify.com/s/files/1/0433/2702/9400/files/xekixebadelakukorupureju.pdf
    • https://cdn.shopify.com/s/files/1/0430/8264/5665/files/gofen.pdf
    • https://cdn.shopify.com/s/files/1/0434/5836/3544/files/laxarusewitexitosowixo.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/25377077497.pdf
    • https://cdn.shopify.com/s/files/1/0432/9524/4441/files/bls_training_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/8515/1897/files/etika_budaya_jawa.pdf
    • https://cdn.shopify.com/s/files/1/0432/0732/7899/files/arm_cortex_m3_c_programming_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/55341071481.pdf
    • https://cdn.shopify.com/s/files/1/0428/7099/7151/files/zofemuporivuwite.pdf
    • https://cdn.shopify.com/s/files/1/0430/5911/8229/files/prefixes_and_suffixes_list_cambridge.pdf
    • https://cdn.shopify.com/s/files/1/0431/0787/7017/files/2020_agenda_for_sustainable_development_goals.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001c05d.bin
335e862a4eed35c141302b5c63e6435f849f1aee0685de2c58683a6cdcdd3213		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C05D 5784 bytes
font_01_sfnt_off0001d3de.bin
659cb0042aada06a32144883b0dc31f91ffda41b4cbee01163a7442c91df389d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1D3DE 14828 bytes

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