Malicious PDF — malware analysis report

Static analysis result for SHA-256 36edf729b25467f0…

MALICIOUS

PDF

36.9 KB Created: 2020-08-19 01:31:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57bcfb436418a472b407e338222acf80 SHA-1: 9e0ee09402a62e8565b5c895994455c8f45cc644 SHA-256: 36edf729b25467f0723422f280ccbdb610ab693233946f619128f88d2d6afc1c
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of the primary links directs to a known malicious redirector infrastructure at 'ttraff.com'. This suggests the document's purpose is to lure users to malicious sites, likely for phishing or to download further malware. The presence of numerous Shopify links, while some are benign, contributes to the overall deceptive nature of the document.

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=photoshop+oil+painting+brushes+free
    • http://files.anvilandlacefarm.com/uploads/1/3/2/8/132815882/reresupa_jumubamewu_wetakew_pifadiwamozo.pdf
    • http://nutop.pierrepaulbitton.net/uploads/1/3/1/8/131856195/vusuvevovotedaz.pdf
    • http://files.marinashay.com/uploads/1/3/1/4/131406518/440cbd99bb939f.pdf
    • http://files.westlakechoirs.org/uploads/1/3/1/3/131398380/terudekereb-rawojigik-remebazakifesa.pdf
    • http://files.pacehighchoir.com/uploads/1/3/1/8/131871891/2056809.pdf
    • https://cdn.shopify.com/s/files/1/0429/1146/5638/files/basic_grammar_practice_test.pdf
    • https://cdn.shopify.com/s/files/1/0434/7861/4168/files/pimisedosumilifuroko.pdf
    • https://cdn.shopify.com/s/files/1/0427/6820/3942/files/macro_perspective_of_tourism_and_hospitality_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0431/2442/4870/files/24551252280.pdf
    • https://cdn.shopify.com/s/files/1/0432/0323/1908/files/6233509260.pdf
    • https://cdn.shopify.com/s/files/1/0430/9427/8293/files/19124130238.pdf
    • https://cdn.shopify.com/s/files/1/0432/9242/6405/files/bitopolojimedizizix.pdf
    • https://cdn.shopify.com/s/files/1/0433/4852/5208/files/73512467569.pdf
    • https://cdn.shopify.com/s/files/1/0432/2243/3953/files/wegid.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_off000052d8.bin
ce94f20d420d0af96d5bdb785e66a6b01f34a7fc244a554496fdb03e66876126		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52D8 5304 bytes
font_01_sfnt_off000064d0.bin
f48d3d8a58d5fa8dbe1cb7d92510dfd50309c85427ac8ca0d38332a40841864c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64D0 9884 bytes

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