Malicious PDF — malware analysis report

Static analysis result for SHA-256 e107c90f2c059326…

MALICIOUS

PDF

70.2 KB Created: 2020-07-30 06:39:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1dd1b53c27294ff172f93f9852d9d8a9 SHA-1: 6a70f8d564232f3e312c37773a6430a43a14a283 SHA-256: e107c90f2c059326462d920c8f7334b5e348611f121c75b6385234687462f8e9
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The primary malicious IOC is the redirector URL, which likely leads to a phishing or malware delivery site. The document body, though heavily obfuscated, contains keywords related to the linked content, suggesting a lure.

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=argala+stotram+in+sanskrit+pdf
    • http://files.atohmit.org/uploads/1/3/1/4/131407388/c8ac64f7412fc5.pdf
    • http://files.chazwaterman.com/uploads/1/3/2/6/132696171/xemusegemafijix-vakigigumoredi-sagef.pdf
    • http://files.miltonmurray.org/uploads/1/3/1/6/131606644/nelemilor.pdf
    • http://files.twistssponge.com/uploads/1/3/0/7/130740320/b9f618364.pdf
    • http://files.atoh
    • https://cdn.shopify.com/s/files/1/0430/6727/7469/files/86257859952.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sivezijikok.pdf
    • https://cdn.shopify.com/s/files/1/0432/4478/1735/files/zilodovufikemuwexalapeva.pdf
    • https://cdn.shopify.com/s/files/1/0436/1243/8685/files/dugivobifekaseti.pdf
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/71288678362.pdf
    • https://cdn.shopify.com/s/files/1/0427/4274/3207/files/nifoxisama.pdf
    • https://cdn.shopify.com/s/files/1/0432/2259/7800/files/65384505208.pdf
    • https://cdn.shopify.com/s/files/1/0431/5840/5275/files/6175121332.pdf
    • https://cdn.shopify.com/s/files/1/0433/0638/5573/files/55556760323.pdf
    • https://cdn.shopify.com/s/files/1/0431/8229/3152/files/ratexenegorupexaxavelujof.pdf
    • https://cdn.shopify.com/s/files/1/0432/3396/8287/files/41784756224.pdf
    • https://cdn.shopify.com/s/files/1/0429/9236/9823/files/18968639658.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71340125447.pdf
    • https://cdn.shopify.com/s/files/1/0431/2373/6725/files/51453308472.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c06b.bin
db55cd2bc2bac8170ea13fb8dd40d891a19eee82cfd8657ccda9b246cf08e4da		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC06B 5084 bytes
font_01_sfnt_off0000d190.bin
076e1f171740ffd36f7b81ed296e34ad579d7e31ea157784af8e1e3af02b9b3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD190 10580 bytes
font_02_sfnt_off0000f4d7.bin
7997dc3d4b585e3525dfc0b3097758e4001cd3bd8941b7003ff105ce42a76c14		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D7 6164 bytes

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