Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd94213275ddee3b…

MALICIOUS

PDF

42.9 KB Created: 2020-07-30 04:01:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fed4abd01615d1162df5b3a03bfd2f69 SHA-1: 40f1690edf0f4261699406b30bb4f3a29f3be507 SHA-256: cd94213275ddee3be8d2355ab34f7ab88348fd09a03786c98ce418806e5db81c
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous embedded links, including one hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains text related to a Marathi PDF, likely a lure. The primary attack vector appears to be social engineering through a deceptive link.

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=shri+ganesh+atharvashirsha+in+marathi+pdf
    • http://files.cpathleticboosterclub.org/uploads/1/3/0/8/130814076/tesupezosekowi_difigaj_ninokurexujo.pdf
    • http://files.royal-obrienclan-uk.org/uploads/1/3/2/6/132696414/dujilenexipodu.pdf
    • http://files.carriedolan.com/uploads/1/3/1/0/131070331/buwedom.pdf
    • http://files.amaranthineartist.com/uploads/1/3/2/7/132741081/xotinurugoz_xebixadukaj.pdf
    • http://files.rosemariequinn.com/uploads/1/3/0/7/130776476/ef7586538b.pdf
    • http://files.royal-obrienclan-uk.org/uploads/1/3/2/6/132696414/dujilene
    • https://cdn.shopify.com/s/files/1/0427/4978/8327/files/30142963121.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mukevomisuso.pdf
    • https://cdn.shopify.com/s/files/1/0432/7482/9987/files/resemixapoleritoxato.pdf
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/9399769280.pdf
    • https://cdn.shopify.com/s/files/1/0431/1308/7142/files/livunagoj.pdf
    • https://cdn.shopify.com/s/files/1/0429/6402/5493/files/14928229179.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/raxuwileguwujubafejitodi.pdf
    • https://cdn.shopify.com/s/files/1/0432/4642/0136/files/tevosuxezogudodudi.pdf
    • https://cdn.shopify.com/s/files/1/0436/1325/7885/files/guwiwexoso.pdf
    • https://cdn.shopify.com/s/files/1/0432/9707/9460/files/waxetaxuvulosivubokoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/3058/5250/files/73465237647.pdf
    • https://cdn.shopify.com/s/files/1/0431/5214/6587/files/44061498208.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_off00005d77.bin
a4b86e064160e10cc0ba056d7b2b07281087f984b127587058d38c55de341442
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D77 5264 bytes
font_01_sfnt_off00006f2c.bin
40ef96da86b6123d577d475be460de15c41b9ca7393a8e650be4e9942aa3c64b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F2C 3720 bytes
font_02_sfnt_off00007a8d.bin
60f7a607d215ec3a0eab405cfd8dd79caf68deaf96b86a8fe428961b06caed8d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A8D 9840 bytes