Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e97643e0a0ccdab…

MALICIOUS

PDF

44.5 KB Created: 2020-08-08 14:03:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aae9fdc7c4613ca46fe4c0a9bcb5864d SHA-1: a8a4ab0ea1d75a5623d24d173527103f178a59d5 SHA-256: 9e97643e0a0ccdab60cdf9a5550166b0054cb37c965b15721988474e8df37e58
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a malicious redirector service (ttraff.cc). The document body, though heavily obfuscated, contains references to 'Adobe after effects cc 2020 tutorials pdf', suggesting a lure to entice users to click the malicious links. The presence of a malicious redirector link and a mass link farm strongly indicates a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=adobe+after+effects+cc+2020+tutorials+pdf
    • http://files.healthandhappyheart.com/uploads/1/3/1/4/131438217/toletodagiwugipika.pdf
    • http://files.lifeisgoodwilliamsburg.com/uploads/1/3/0/8/130874125/8638930.pdf
    • http://files.bali-jaladara.org/uploads/1/3/1/4/131437210/121190.pdf
    • http://files.tigerterrain.com/uploads/1/3/1/4/131407042/vujup-fexakanapoba-sogefori-komulu.pdf
    • http://files.shaunturnerwrites.com/uploads/1/3/2/7/132741198/zorebu-kovofomuwox.pdf
    • https://cdn.shopify.com/s/files/1/0434/2821/6997/files/gejokekexikusojepot.pdf
    • https://cdn.shopify.com/s/files/1/0438/1769/7437/files/46639989359.pdf
    • https://cdn.shopify.com/s/files/1/0437/6346/6391/files/bawobivekusigawubafuvudob.pdf
    • https://cdn.shopify.com/s/files/1/0434/1995/9463/files/smiles_rearrangement_mechanism.pdf
    • https://cdn.shopify.com/s/files/1/0432/2839/7727/files/albuterol_inhaler_instructions.pdf
    • https://cdn.shopify.com/s/files/1/0436/5071/1705/files/41385401582.pdf
    • https://cdn.shopify.com/s/files/1/0429/6648/3103/files/jofemukukusajo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6863/6834/files/93655952055.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45251784546.pdf
    • https://cdn.shopify.com/s/files/1/0433/0648/3876/files/54774847242.pdf
    • https://cdn.shopify.com/s/files/1/0432/8616/7702/files/nasogukagebudepunadozirok.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_off00006248.bin
ef74fd4072a2ea2ad591ad4b26f71be7899afdd689af19633c1f6b0158db9298
pdf-font-stream PDF embedded font (sfnt) at offset 0x6248 5328 bytes
font_01_sfnt_off00007474.bin
1b52363e8cba1d709a7ba1f577d384695252480617d939f3ff75fc3f045c27ac
pdf-font-stream PDF embedded font (sfnt) at offset 0x7474 10020 bytes
font_02_sfnt_off000096a9.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x96A9 4324 bytes