Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae9e4252777e814e…

MALICIOUS

PDF

46.2 KB Created: 2020-08-13 21:47:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 295bb58827f76b0e55b06c244d3fa52a SHA-1: 01fb26fd12a9661bca8cc3f62ae0b1ca97759256 SHA-256: ae9e4252777e814ec24a9489ce3f844fbc66dd6110919e40d990c994f42770d0
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links directs to a known malicious redirector at 'ttraff.ru'. This suggests the document is designed to funnel users to malicious sites, likely for phishing or malware distribution. 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=platform+specific+react+native
    • http://files.maryrosemedium.com/uploads/1/3/2/8/132814250/kufutiped.pdf
    • http://files.alaskadalmatians.net/uploads/1/3/1/3/131380345/ac7ad976cd90.pdf
    • http://balujexuv.captureamoment.net/uploads/1/3/1/8/131858661/acdbc4248e5.pdf
    • http://kozile.lucysmalley.com/uploads/1/3/2/3/132303382/3993684.pdf
    • https://cdn.shopify.com/s/files/1/0430/3116/7137/files/7867839905.pdf
    • https://cdn.shopify.com/s/files/1/0430/9906/2421/files/zatudopixixeba.pdf
    • https://cdn.shopify.com/s/files/1/0437/7791/7085/files/brand_ladder.pdf
    • https://cdn.shopify.com/s/files/1/0434/6501/5446/files/fexina.pdf
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/excel_2020_training.pdf
    • https://cdn.shopify.com/s/files/1/0430/2694/0067/files/del_anticapitalismo_al_neoliberalismo_en_chile.pdf
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/xanirazijub.pdf
    • https://cdn.shopify.com/s/files/1/0431/0165/1101/files/jaxizaduzuromigir.pdf
    • https://cdn.shopify.com/s/files/1/0428/7938/5756/files/steam_keys_reddit.pdf
    • https://cdn.shopify.com/s/files/1/0432/5074/5512/files/53571698948.pdf
    • https://cdn.shopify.com/s/files/1/0431/2091/8679/files/nufumezumumasutalegava.pdf
    • https://cdn.shopify.com/s/files/1/0436/0250/9987/files/lolozanugubim.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_off000068ac.bin
fdada1fbed84af2de8b767804331ea9b1b2362d339ecaa4b4368d742d48f8d75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68AC 5008 bytes
font_01_sfnt_off00007997.bin
916cbd0a0c0752547e0dddc0581f597d66b939b855b19f50221c08333d0b6036		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7997 10620 bytes
font_02_sfnt_off00009de2.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DE2 4324 bytes

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