Malicious PDF — malware analysis report

Static analysis result for SHA-256 3182d44c9e3b6c94…

MALICIOUS

PDF

35.2 KB Created: 2020-08-26 17:55:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba3ef4eb6e36accb70d7bc557376a10a SHA-1: 3bb663eda933d46fdda61cf85ca900893995ef2e SHA-256: 3182d44c9e3b6c9467a3d6e39395f44e60a5510bc9a8d0329c422daeeafed675
140 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic. This suggests the document is designed to drive traffic to malicious sites, likely for phishing or malware distribution.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=sex+files%253A+sexual+matrix
    • http://files.josephinepearls.com/uploads/1/3/0/8/130813859/kipekakake_xagasotaxodip.pdf
    • http://files.itsbendybo.com/uploads/1/3/1/4/131437444/vuxoxeditepifel-dajerolapanaxoz-nizinomimafikel-buxowejakoweka.pdf
    • https://cdn.shopify.com/s/files/1/0427/8072/1311/files/aspergillus_flavus_caracteristicas.pdf
    • https://cdn.shopify.com/s/files/1/0428/8865/9100/files/introducing_applied_linguistics_corder.pdf
    • https://cdn.shopify.com/s/files/1/0430/0665/6666/files/70097632949.pdf
    • https://cdn.shopify.com/s/files/1/0431/8108/0725/files/what_is_an_example_of_polysyndeton.pdf
    • https://cdn.shopify.com/s/files/1/0439/3343/4011/files/ludafinenateji.pdf
    • https://cdn.shopify.com/s/files/1/0431/2665/3079/files/the_usefulness_of_useless_knowledge_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/8379/9459/files/atenea_diosa_griega_informacion.pdf
    • https://cdn.shopify.com/s/files/1/0431/9733/3668/files/saxagivabixumusiru.pdf
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/delurugebiritezis.pdf
    • https://cdn.shopify.com/s/files/1/0433/3427/1126/files/57590732221.pdf
    • https://cdn.shopify.com/s/files/1/0433/2807/7992/files/nedimexiriv.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_off00004bc5.bin
fbdc0b73be77612d2d892d931771f22dcb3708ac90b2e30af5a9c8bc26bd4b39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BC5 5136 bytes
font_01_sfnt_off00005d2a.bin
0e675e1f044486df5d46fd031b231d3cf149401bf879583ea1af0b9415e0979f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D2A 10300 bytes

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