Malicious PDF — malware analysis report

Static analysis result for SHA-256 91371ada6c70283c…

MALICIOUS

PDF

58.1 KB Created: 2020-08-02 08:39:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 696d2ceb12bf1c347df5e632662df4fc SHA-1: 356ed48e18fb96ddc06abd960c0a6351fee053bd SHA-256: 91371ada6c70283c95c37926a3643a37096c5a821cce75bb1106c1afe45c4c69
120 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One prominent link, 'https://ttraff.com/pify?keyword=gom+player+mac', is flagged as a malicious redirector. The document body text and metadata suggest a lure related to 'Gom player mac', likely intended to trick users into clicking the malicious links.

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=gom+player+mac
    • http://files.mswoodsclass.com/uploads/1/3/1/3/131384025/vutowabunutuvo-pasumuwekupot.pdf
    • http://files.joanneclarkephotography.com/uploads/1/3/1/1/131163723/xavetu-dagulolatuf-numevanoduw-foxojina.pdf
    • http://files.felipevis.com/uploads/1/3/0/7/130775470/4965137.pdf
    • https://cdn.shopify.com/s/files/1/0429/0487/9271/files/texazuvi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39086675177.pdf
    • https://cdn.shopify.com/s/files/1/0439/3864/4136/files/87553144210.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xodowowesibaxen.pdf
    • https://cdn.shopify.com/s/files/1/0441/2270/1976/files/40271138832.pdf
    • https://cdn.shopify.com/s/files/1/0429/4567/5420/files/46370047198.pdf
    • https://cdn.shopify.com/s/files/1/0428/3272/4124/files/92689919552.pdf
    • https://cdn.shopify.com/s/files/1/0432/1171/8820/files/26768958073.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dubisetebezurazoxodo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5455/4533/files/16718013120.pdf
    • https://cdn.shopify.com/s/files/1/0432/3734/3387/files/the_getaway_black_monday.pdf
    • https://cdn.shopify.com/s/files/1/0432/3275/5875/files/tewodurugofa.pdf
    • https://cdn.shopify.com/s/files/1/0432/1063/7476/files/zobosufowasazevuwoti.pdf
    • https://cdn.shopify.com/s/files/1/0429/7005/4805/files/gojiri.pdf
    • https://cdn.shopify.com/s/files/1/0433/3076/4955/files/luxewamar.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000072c9.bin
786655edbd6ca727075c453dbbe489f13657cee6133561299d341808c0c0cee8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72C9 4588 bytes
font_01_sfnt_off0000825d.bin
3790d9a7d1b1b111912d3e51df2d80ab8bc470b3e8a118982e762fa7e09add40		 pdf-font-stream PDF embedded font (sfnt) at offset 0x825D 3888 bytes
font_02_sfnt_off00009182.bin
083c711259a24b61fdc2d84e00175535f6d19a34808e007d7fbc0e6a577c9ed5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9182 10420 bytes
font_03_sfnt_off0000b55c.bin
54dd535e5f9fde366691e69436fb31b02b6358b68c90b25a8101269e2ff26ed1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB55C 17332 bytes
font_04_sfnt_off0000ccdd.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCCDD 4324 bytes

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