Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce954385d6275a46…

MALICIOUS

PDF

40.7 KB Created: 2020-08-24 23:17:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00de25d1354b0d4b7f3360338eb1ee4d SHA-1: e70a3db9cef6b9e34b92f144512eebb6eff4567e SHA-256: ce954385d6275a46cdc864faaffda76ccbb722158e5d35544037579ce5514849
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, directing users to 'ttraff.cc'. It also exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The document body, though heavily corrupted, contains the text 'Leak proof bag experiment worksheet' and the malicious URL, suggesting a social engineering lure. No scripts were extracted from this sample.

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=leak+proof+bag+experiment+worksheet
    • http://fodeti.nigelgorskiconsulting.co.uk/uploads/1/3/0/7/130775565/7805eb6002.pdf
    • https://cdn.shopify.com/s/files/1/0434/3755/5864/files/next_3d_launcher.pdf
    • https://cdn.shopify.com/s/files/1/0436/5395/5742/files/pugebepa.pdf
    • https://cdn.shopify.com/s/files/1/0435/3966/0954/files/getting_things_done_david_allen.pdf
    • https://cdn.shopify.com/s/files/1/0436/3524/5214/files/autocad_commands_list_in.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/bufejopuzavokimej.pdf
    • https://cdn.shopify.com/s/files/1/0435/7678/7103/files/malafur.pdf
    • https://cdn.shopify.com/s/files/1/0438/9886/3771/files/6338716421.pdf
    • https://cdn.shopify.com/s/files/1/0440/4455/0294/files/sudozimatodudaxozana.pdf
    • https://cdn.shopify.com/s/files/1/0433/8630/6710/files/2019_fillable_calendar_template_word.pdf
    • https://cdn.shopify.com/s/files/1/0428/8102/4159/files/woraf.pdf
    • https://cdn.shopify.com/s/files/1/0430/8231/7991/files/kumpulan_lagu_blasta_rap_family.pdf
    • https://cdn.shopify.com/s/files/1/0429/8362/0757/files/how_was_your_weekend_best_answer.pdf
    • https://cdn.shopify.com/s/files/1/0435/3540/1112/files/18669630204.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_off0000617b.bin
117a7ba9b52fb3b1fe9044898262bd163b00086bab838d7938f598c97fb16cec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x617B 5588 bytes
font_01_sfnt_off00007471.bin
90d289612ce85275e846cbf9ca137e9c7275df6130e0c055dd52a314c94719e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7471 9812 bytes

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