Malicious PDF — malware analysis report

Static analysis result for SHA-256 e58aa01df574642f…

MALICIOUS

PDF

40.5 KB Created: 2020-08-13 00:16:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43b2b6d98263e6f1399a192a0b92025a SHA-1: 62114eb19cdab0065d8b6ca8172896d5349caaa8 SHA-256: e58aa01df574642f6179f84ac4dcd7a72f539fd48757d79ace92432275c3b7a6
120 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.ru/pify?keyword=akbarnama+vol+2+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which are hosted on Shopify. The document body, though heavily corrupted, contains references to these URLs. The primary malicious link is likely intended to redirect users to a phishing page or a malware download site.

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=akbarnama+vol+2+pdf
    • http://files.annwdesign.com/uploads/1/3/0/7/130776266/lanujuzu-dematef.pdf
    • http://pafajule.winningthegameofbelief.com/uploads/1/3/1/3/131398140/gelesebaturevuwuvoz.pdf
    • http://files.journeyandbloomyogadoula.com/uploads/1/3/1/3/131384424/a48946cd4.pdf
    • https://cdn.shopify.com/s/files/1/0431/9982/4032/files/software_engineering_ian_sommerville_10th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lewajoranuputefikilos.pdf
    • https://cdn.shopify.com/s/files/1/0428/2001/0140/files/feral_heart_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/8439/8236/files/18224611287.pdf
    • https://cdn.shopify.com/s/files/1/0434/3896/4903/files/microeconomics_pindyck_7th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0432/7089/7824/files/92516593932.pdf
    • https://cdn.shopify.com/s/files/1/0434/0586/9208/files/45528688623.pdf
    • https://cdn.shopify.com/s/files/1/0434/3624/5142/files/cetoprofeno_100_bula.pdf
    • https://cdn.shopify.com/s/files/1/0436/1905/7826/files/81576781773.pdf
    • https://cdn.shopify.com/s/files/1/0430/2172/9955/files/beginner_english_reading_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/basunupuniguturipeg.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_off00005f9d.bin
992eaeb04c1d2d81785d8211fe3fe02b1c72f5dc06de12212f7736f3b42d9094		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9D 5392 bytes
font_01_sfnt_off000071e6.bin
86496fda614e77fb4988eae20e82f3a633dffe8f318943d8a376cc771508410c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71E6 10520 bytes

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