Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d84eef8c932d944…

MALICIOUS

PDF

48.0 KB Created: 2020-08-09 13:48:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 324df9459939e9d82100b57c60854677 SHA-1: bf65fdf50376174879fb0f8ef51cb8be8489125b SHA-256: 5d84eef8c932d94425950b15fa72ff0c8bc6745064dc459cab354b1fe7846062
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, many of which are disguised as PDF files hosted on various domains. The primary redirector URL, https://ttraff.cc/pify?keyword=endoscopia+procedimiento+pdf, is flagged as malicious. This suggests the document is designed to lead users to malicious content through a link farm, likely for phishing or malware distribution.

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.cc/pify?keyword=endoscopia+procedimiento+pdf
    • http://files.fincastlepartners.com/uploads/1/3/0/8/130873877/dikola.pdf
    • http://ligizotut.annikabovender.com/uploads/1/3/2/8/132814930/mixososuwabeju_fedafakokipo_peralefejufarag.pdf
    • http://files.fermentasmania.com/uploads/1/3/1/4/131454207/1922b4b.pdf
    • http://files.medfieldheightspto.com/uploads/1/3/1/0/131070190/joridesaz.pdf
    • http://files.stampingcolor.com/uploads/1/3/1/3/131380126/wosenodez.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/lovilanapimekufa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tawoxusabevesumaxev.pdf
    • https://cdn.shopify.com/s/files/1/0434/5076/1377/files/20000666059.pdf
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/gixowikumagewefuga.pdf
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/alcohol_screening_tools.pdf
    • https://cdn.shopify.com/s/files/1/0433/9902/0696/files/76370276069.pdf
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/6826567950.pdf
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/minecraft_power_converters.pdf
    • https://cdn.shopify.com/s/files/1/0431/0528/8352/files/42493170823.pdf
    • https://cdn.shopify.com/s/files/1/0433/0648/3876/files/incentive_pay_definition.pdf
    • https://cdn.shopify.com/s/files/1/0430/7881/1810/files/how_to_summon_the_devil.pdf
    • https://cdn.shopify.com/s/files/1/0429/5789/7882/files/livanapuvefuge.pdf
    • https://cdn.shopify.com/s/files/1/0431/6538/4866/files/12063259238.pdf
    • https://cdn.shopify.com/s/files/1/0431/4952/5149/files/43815702176.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • https://medlineplus.gov/spanish/endoscopy.html
    • 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_off00007b73.bin
61c87a42b9edb86cb2691b5cd5d5f87608cc8897ec7fbe592745ef89b4f6aba7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B73 5228 bytes
font_01_sfnt_off00008d2c.bin
d6b0861aaa119f0b699d3f86ed02c25d0cb8047abd3f237ecc838386fae22efe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D2C 11060 bytes

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