Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3d0166c4953f0f2…

MALICIOUS

PDF

40.8 KB Created: 2020-08-20 10:29:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03ba03de4bd0172d03e8cc43dfce2748 SHA-1: e0700d51677a88fb18fb8ce4672a05c7a77d875c SHA-256: e3d0166c4953f0f2319ce13f36adee9bec4b102d70fd8c9dd17f75e1b7c764be
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=naar+new+song+babbu+maan'. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, many of which are hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The document body contains garbled text but also includes the malicious URL and several other URLs, some of which are hosted on potentially suspicious domains.

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.com/pify?keyword=naar+new+song+babbu+maan
    • http://files.mbilder.com/uploads/1/3/1/4/131406816/1092288.pdf
    • http://wizugur.lizthecellist.com/uploads/1/3/0/7/130739048/ramilomulemuba.pdf
    • http://files.marengowesleyan.com/uploads/1/3/0/8/130814680/fozul.pdf
    • https://cdn.shopify.com/s/files/1/0428/1637/2892/files/budwig_protocol_book.pdf
    • https://cdn.shopify.com/s/files/1/0432/4907/4336/files/sipakivajupibotepaju.pdf
    • https://cdn.shopify.com/s/files/1/0433/9043/5495/files/zifusukim.pdf
    • https://cdn.shopify.com/s/files/1/0427/4749/4567/files/buvamesedisejosodiseromer.pdf
    • https://cdn.shopify.com/s/files/1/0437/3898/8709/files/75361586629.pdf
    • https://cdn.shopify.com/s/files/1/0438/1802/5122/files/26300235796.pdf
    • https://cdn.shopify.com/s/files/1/0433/1402/0507/files/69569682359.pdf
    • https://cdn.shopify.com/s/files/1/0433/9302/4149/files/zoo_tycoon_2_ultimate_collection_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/age_of_empire_3_mobile_java_apk.pdf
    • https://cdn.shopify.com/s/files/1/0434/1334/0312/files/98335936989.pdf
    • https://cdn.shopify.com/s/files/1/0432/9809/5272/files/nenifevarivipage.pdf
    • https://cdn.shopify.com/s/files/1/0429/5789/7882/files/86364666579.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_off00005772.bin
60f420a16dd528037149a72a7d69f4e1a78657b4274607fd78a2f19febccb484		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5772 5172 bytes
font_01_sfnt_off0000690c.bin
0f485b2e43a178bf6e81ae9b2f6c35dee857239eaa47e08a078135e02b2713e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x690C 14488 bytes

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