Malicious PDF — malware analysis report

Static analysis result for SHA-256 76e2eda8e3dba97b…

MALICIOUS

PDF

43.6 KB Created: 2020-08-18 22:54:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be0b123cf567c4f6253e939f4cf95916 SHA-1: c19aae09bc2d04249b08e5eebaad6d248aaa1d94 SHA-256: 76e2eda8e3dba97b82258f0ac12b059078a034b16bbca810b4f7bfba1dce6e1d
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a mass external link farm, with a primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=bedwars+pe+map', which is likely intended to lure users into clicking through to a malicious site. The presence of numerous PDF links, many hosted on Shopify, suggests a tactic to evade detection or distribute content widely. No scripts were extracted from this sample.

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.
  • 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.
  • 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=bedwars+pe+map
    • http://xerepu.copperfieldfarmfl.com/uploads/1/3/1/8/131856772/6d428e27e1fbf01.pdf
    • http://files.annaklandpottery.com/uploads/1/3/1/6/131606003/kuwebamawer.pdf
    • http://lidota.ettc-group.com/uploads/1/3/2/6/132695675/varadazajoge.pdf
    • http://files.mrsrenohasclass.com/uploads/1/3/1/4/131453276/jagitirozapa_nuzene_welusur.pdf
    • http://files.wiesbadenbaptist.com/uploads/1/3/2/6/132681080/bb4861f.pdf
    • https://cdn.shopify.com/s/files/1/0433/7431/3622/files/54363953718.pdf
    • https://cdn.shopify.com/s/files/1/0430/0177/4233/files/xigataliwesadogugu.pdf
    • https://cdn.shopify.com/s/files/1/0439/4565/6488/files/julevevodopufebipoxi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0894/9402/files/pepufijalolixifa.pdf
    • https://cdn.shopify.com/s/files/1/0429/6205/9427/files/insanity_workout_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/2906/7933/files/34303207332.pdf
    • https://cdn.shopify.com/s/files/1/0439/5152/1947/files/lozuwimisodano.pdf
    • https://cdn.shopify.com/s/files/1/0434/0046/2501/files/71390755243.pdf
    • https://cdn.shopify.com/s/files/1/0435/2190/0696/files/nizefipomugelaba.pdf
    • https://cdn.shopify.com/s/files/1/0431/8432/4770/files/rectangular_coordinate_system_examples_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/2949/4940/files/37416944066.pdf
    • https://cdn.shopify.com/s/files/1/0429/8607/8369/files/38269916003.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_off00005a5b.bin
5725503ad1a6ad4317cf562084ac504a967752361956e0dcbf320c24f4c810c2
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A5B 5212 bytes
font_01_sfnt_off00006c0a.bin
51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C0A 1800 bytes
font_02_sfnt_off00007498.bin
9f8cada0e2c4977e4e2a5bc67d002462d21046beb02c764768f99aa2875c0161
pdf-font-stream PDF embedded font (sfnt) at offset 0x7498 13936 bytes