Malicious PDF — malware analysis report

Static analysis result for SHA-256 d43688ce0f7f105e…

MALICIOUS

PDF

58.9 KB Created: 2020-08-23 07:33:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 967aea87c60d890408623050c57dd1f7 SHA-1: b66cf02ec74f4a99992825c13143554437aeda81 SHA-256: d43688ce0f7f105e3bbd7da193674fba912d665c3b8702b84659590cb408a95d
128 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 Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure for content related to 'Beoutq iptv m3u'. The presence of a 'download button' heuristic further supports the social engineering aspect of this attack. No scripts were extracted from this sample.

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/pify?keyword=beoutq+iptv+m3u
    • http://files.lifewithbackpacks.com/uploads/1/3/0/7/130775665/vebafivosevovegope.pdf
    • http://files.88keys4music.com/uploads/1/3/1/4/131407767/4da55bc673.pdf
    • http://vibununik.andreascustomcakes.com/uploads/1/3/2/7/132711991/navanifobuj.pdf
    • http://files.sunflowergallerymt.com/uploads/1/3/2/7/132740181/xamazetuvidategozufe.pdf
    • http://tupez.diamondhomes.net/uploads/1/3/1/3/131384609/3380089.pdf
    • https://cdn.shopify.com/s/files/1/0429/6838/3642/files/pestel_analysis_of_unilever.pdf
    • https://cdn.shopify.com/s/files/1/0438/2969/0530/files/38352162296.pdf
    • https://cdn.shopify.com/s/files/1/0431/7364/2389/files/list_of_vocabulary_words_with_marathi_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0430/5013/9801/files/bimuleligarekubaxexa.pdf
    • https://cdn.shopify.com/s/files/1/0429/0645/2127/files/9084485221.pdf
    • https://cdn.shopify.com/s/files/1/0435/1806/6842/files/limuvudotorepaxewidufel.pdf
    • https://cdn.shopify.com/s/files/1/0431/0892/5600/files/17751689911.pdf
    • https://cdn.shopify.com/s/files/1/0432/0005/3408/files/sokevakataxidin.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/podufa.pdf
    • https://cdn.shopify.com/s/files/1/0432/3616/3747/files/math_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0429/5199/9637/files/convert_base64_c.pdf
    • https://cdn.shopify.com/s/files/1/0434/1334/0316/files/60205976767.pdf
    • https://cdn.shopify.com/s/files/1/0437/7821/1991/files/vaxowulixafejosexi.pdf
    • https://cdn.shopify.com/s/files/1/0450/4325/3406/files/us_history_books_for_high_school.pdf
    • https://bit.ly/2Tz6h5X
    • https://bit.ly/2Fgug67
    • 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
stream_005_off0000afd7.bin
55c2596bc9c17fba53f156c27ea5142341f4c27b80f2bc9b70614280b5943dbd		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xAFD7 26552 bytes
font_00_sfnt_off000071d5.bin
87e6d4a654be4665508b0625aee4f159405014d61ff2b09b6c4ac12fa2e3ee81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71D5 4848 bytes
font_01_sfnt_off00008254.bin
a21fdf240457f359e528897975616d02323cea81bb5f19e33a4c3bd2072a3f85		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8254 14532 bytes

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