Malicious PDF — malware analysis report

Static analysis result for SHA-256 a174cc5db91ff9fe…

MALICIOUS

PDF

38.6 KB Created: 2020-08-20 19:09:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6000c10201f220bacf28023713d7cbf0 SHA-1: 3c903d50730b1665f525c584bbb185591f19848d SHA-256: a174cc5db91ff9feda5e6be4a6074548e6592b5a3839c0a8739328fa6c27986f
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=lol+runes+guide+adc'. The document body also contains this URL and numerous other PDF links, suggesting a link farm or redirection tactic. The primary attack pattern involves luring the user to click the malicious link under the guise of a game guide.

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=lol+runes+guide+adc
    • http://files.adjustablebedinabox.com/uploads/1/3/1/3/131383456/nadulukinobawifinetu.pdf
    • http://files.artandroulla.com/uploads/1/3/2/6/132681657/wobaxazup_vuzetimi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8231/7975/files/wenefuxejuwurotidikigewup.pdf
    • https://cdn.shopify.com/s/files/1/0432/1627/3563/files/16563895487.pdf
    • https://cdn.shopify.com/s/files/1/0435/1308/6106/files/zeralovomifeto.pdf
    • https://cdn.shopify.com/s/files/1/0437/9531/6896/files/jazz_blues_chord_progressions.pdf
    • https://cdn.shopify.com/s/files/1/0432/7797/5717/files/73301773204.pdf
    • https://cdn.shopify.com/s/files/1/0432/9511/3374/files/turbulent_flow_pope.pdf
    • https://cdn.shopify.com/s/files/1/0432/1666/6786/files/6825622763.pdf
    • https://cdn.shopify.com/s/files/1/0428/8364/5599/files/callan_method_book_1_stage_2.pdf
    • https://cdn.shopify.com/s/files/1/0430/6498/3703/files/voladitogetusadixonumurup.pdf
    • https://cdn.shopify.com/s/files/1/0432/0401/8336/files/rarini.pdf
    • https://cdn.shopify.com/s/files/1/0432/3196/9438/files/88462976043.pdf
    • https://cdn.shopify.com/s/files/1/0434/2402/2677/files/types_of_artificial_neural_network.pdf
    • https://cdn.shopify.com/s/files/1/0438/6720/9893/files/english_worksheets_for_kindergarten.pdf
    • https://cdn.shopify.com/s/files/1/0430/0413/3525/files/loxaloduxowewimet.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_off0000593b.bin
6b0297ecf5c9d7f8fe4d9814a59018217ed7f8d170c475bace55927eb43b9bed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x593B 5048 bytes
font_01_sfnt_off00006a6d.bin
af62aad09ae3a330626a9fd0be831c4ab0feeeb5c691a2d67a33103f4c76df92		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A6D 10428 bytes

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