Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1fb5fed5885fbd2…

MALICIOUS

PDF

51.4 KB Created: 2020-09-01 07:44:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 965cfd90e577e1890db1dd04dfae1abc SHA-1: 955080a59d84cf744ab546a7f673ec6be2c8096f SHA-256: c1fb5fed5885fbd210fe05bc92a6288500148e508aee9b376841c5160b7eed04
128 Risk Score

Malware Insights

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

The PDF contains a lure for a 'pokemon game black and white free' download, which is a common social engineering tactic. The primary heuristic indicates that the PDF links to known malicious redirector infrastructure via the URL https://ttraff.com/wix. Additionally, the PDF acts as a link farm, containing numerous links to other PDFs hosted on Shopify, likely for SEO manipulation to improve search engine ranking for the malicious lure. The presence of a visual download button further supports the social engineering pretext.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=pokemon+game+black+and+white+free
    • https://cdn.shopify.com/s/files/1/0437/7716/3416/files/comparative_adjectives_worksheet_8th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0438/9847/0555/files/ncert_notes_in_hindi_for_class_12_chemistry_download.pdf
    • https://cdn.shopify.com/s/files/1/0462/4377/4618/files/kigunakixuvobojovimona.pdf
    • https://cdn.shopify.com/s/files/1/0428/2525/3023/files/bible_faith_study_course.pdf
    • https://cdn.shopify.com/s/files/1/0428/5969/2191/files/lomuberata.pdf
    • https://cdn.shopify.com/s/files/1/0437/9770/8957/files/bookmarklet_firefox_android.pdf
    • https://cdn.shopify.com/s/files/1/0434/4040/6684/files/eichmann_w_jerozolimie.pdf
    • https://cdn.shopify.com/s/files/1/0430/3601/6802/files/bodigawafuzafijakux.pdf
    • https://cdn.shopify.com/s/files/1/0429/7474/0636/files/1654174846.pdf
    • https://cdn.shopify.com/s/files/1/0432/0067/6003/files/maths_questions_and_answers_form_4.pdf
    • https://cdn.shopify.com/s/files/1/0431/9117/3277/files/adding_and_subtracting_integers_worksheets_grade_8.pdf
    • https://cdn.shopify.com/s/files/1/0433/2650/5118/files/zujekovilan.pdf
    • https://cdn.shopify.com/s/files/1/0440/5228/3542/files/ritmo_cassinese.pdf
    • https://cdn.shopify.com/s/files/1/0430/0311/7719/files/karnataka_government_restricted_holidays_2020.pdf
    • https://cdn.shopify.com/s/files/1/0439/0505/6920/files/fibojur.pdf
    • https://cdn.shopify.com/s/files/1/0431/7655/8746/files/pusowusuro.pdf
    • https://cdn.shopify.com/s/files/1/0430/3529/5905/files/26816536954.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_off00007476.bin
2587db30ec2ca94ab14118de475bb65acd802981229da77bb39092939a36be38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7476 5616 bytes
font_01_sfnt_off000087c3.bin
401f8c399acbf4c3ce784631d27d12e2151604b4c3be3b8c3f6997e6ee2cf45e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87C3 5556 bytes
font_02_sfnt_off00009a97.bin
25977ec2edb40dbafe70b3c5984d21d587efce0cc117b797c0fc5e1749e28241		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A97 10436 bytes

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