Malicious PDF — malware analysis report

Static analysis result for SHA-256 864462283c99d77b…

MALICIOUS

PDF

44.4 KB Created: 2020-08-02 22:23:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40703b70358b5f5d2b03c33c3e9b5a7c SHA-1: 04ed12ea46e4314bf6625d1d6d6550a5d79ad596 SHA-256: 864462283c99d77b8e263b1699cf1165a1074dcf6b14a4dbaa5d89024dc5f736
120 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, including a suspicious redirector URL, disguised as a method to disable Avast popups. The primary malicious link is https://ttraff.cc/pify?keyword=avast+turn+off+popups, which likely leads to a malicious site. The document's structure and content suggest a phishing or social engineering attack aimed at redirecting users to harmful infrastructure.

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=avast+turn+off+popups
    • http://files.filmbandits.org/uploads/1/3/1/8/131856276/vawud_begenuzadere_sigizafawup_popowosowiride.pdf
    • http://files.gsskids.org/uploads/1/3/0/8/130873973/korunavo.pdf
    • http://files.vermontlearningsupport.org/uploads/1/3/1/8/131856288/nisozuziz.pdf
    • https://cdn.shopify.com/s/files/1/0430/3116/7137/files/3052942382.pdf
    • https://cdn.shopify.com/s/files/1/0431/6341/8784/files/74724875403.pdf
    • https://cdn.shopify.com/s/files/1/0430/9821/0461/files/16365436915.pdf
    • https://cdn.shopify.com/s/files/1/0435/7606/6211/files/office_2007_configures_every_time.pdf
    • https://cdn.shopify.com/s/files/1/0438/2018/7805/files/61742812979.pdf
    • https://cdn.shopify.com/s/files/1/0436/1990/9794/files/80014626774.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/basexuremobuwufi.pdf
    • https://cdn.shopify.com/s/files/1/0435/2504/6431/files/viii_roman_numerals.pdf
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/40767636468.pdf
    • https://cdn.shopify.com/s/files/1/0436/3033/0019/files/fundamentals_of_management_robbins_8th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0440/9714/2936/files/92945151615.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/mexerujesekotegapujog.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_off000071a0.bin
7c55fb96eda853f2a9e0a4485b8f6cba3185142961918f46cb78faac19d289d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71A0 4912 bytes
font_01_sfnt_off0000826e.bin
0b1696eabc38460ae6c1db3a2588dc3a7d166fedbd9782bd31eecd3b1aa7f1de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x826E 10128 bytes

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