Malicious PDF — malware analysis report

Static analysis result for SHA-256 db58b944bb246630…

MALICIOUS

PDF

48.3 KB Created: 2020-07-27 21:22:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c65f6e911daab34d8e7f230c93c0bb1 SHA-1: 46b6434dcec8e8d54254825981fe1053d299c07b SHA-256: db58b944bb246630cd2667ee084697345f30662baae24df678f7091783086c18
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=boulder+dash+game+apk'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links, including one hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains text related to 'Boulder dash game apk', suggesting a lure to download a game. The combination of these factors indicates a malicious intent to redirect users to harmful content.

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.cc/pify?keyword=boulder+dash+game+apk
    • http://files.bundoranlifeboat.org/uploads/1/3/1/4/131438528/bewupas-daxodawapaza-nirijalimebuxeg-vufivipizopek.pdf
    • http://files.lsarchinc.com/uploads/1/3/2/6/132681783/3172609.pdf
    • http://files.thecuriouscatgiftshop.com/uploads/1/3/2/6/132681596/puwakir.pdf
    • http://files.themassageplacesp.com/uploads/1/3/1/4/131410234/1072164.pdf
    • http://files.moleremily.com/uploads/1/3/2/8/132814096/bedebf1.pdf
    • http://files.moleremily.com/uploads/1/3/2/8/1328140
    • https://cdn.shopify.com/s/files/1/0433/7739/3815/files/gudotogetadojeno.pdf
    • https://cdn.shopify.com/s/files/1/0429/6795/7658/files/fowuvenetimo.pdf
    • https://cdn.shopify.com/s/files/1/0428/2646/5436/files/galuburirepinizalasekoji.pdf
    • https://cdn.shopify.com/s/files/1/0436/7928/5401/files/82615037758.pdf
    • https://cdn.shopify.com/s/files/1/0434/5279/2982/files/69594763642.pdf
    • https://cdn.shopify.com/s/files/1/0429/6107/6387/files/bakoritijutinigasaxigapij.pdf
    • https://cdn.shopify.com/s/files/1/0435/0902/2886/files/refam.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tedix.pdf
    • https://cdn.shopify.com/s/files/1/0430/7494/5184/files/65225901982.pdf
    • https://cdn.shopify.com/s/files/1/0432/6372/1637/files/nevegakesob.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_off00007e7f.bin
b538e102981993975c1d95df4e6e75402f4644bfc17c0897ce725da593b5a402		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E7F 5136 bytes
font_01_sfnt_off00008fee.bin
df3084b9b654249873d1450fa2b4d34e0e21eea641bbfdabc24eae474ae93e76		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FEE 10872 bytes

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