Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3440a0d7ddddec5…

MALICIOUS

PDF

35.5 KB Created: 2020-08-24 09:45:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43cac9651a70105ea57008f7b0074153 SHA-1: c9ac6566a63c87faf0c26570b6a56d1644ce1335 SHA-256: d3440a0d7ddddec513fd2685f15e9366d89285bc566da40bf342c904ea2766d8
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One of the embedded URLs, 'https://ttraff.com/pify?keyword=candy+camera+sticker+pack+1', is identified as a known malicious redirector. The document body itself is heavily obfuscated and contains some of the URLs, suggesting an attempt to disguise the malicious intent.

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=candy+camera+sticker+pack+1
    • http://files.richlaffertyracing.com/uploads/1/3/1/1/131164231/9d9cbc.pdf
    • http://vivot.mightyandmessylife.com/uploads/1/3/1/8/131856772/jotuzilemu_gejoxarekut_munebore_pumotal.pdf
    • http://lasovo.harmonizeyourhealth.info/uploads/1/3/2/6/132696323/35a062b4bd69ce.pdf
    • http://files.metoomining.com/uploads/1/3/0/8/130814601/3efdc9b45.pdf
    • https://cdn.shopify.com/s/files/1/0432/8259/6004/files/29621629555.pdf
    • https://cdn.shopify.com/s/files/1/0437/5078/5185/files/26862848720.pdf
    • https://cdn.shopify.com/s/files/1/0437/7572/1633/files/pupalakikosezupi.pdf
    • https://cdn.shopify.com/s/files/1/0438/9899/4856/files/69711584512.pdf
    • https://cdn.shopify.com/s/files/1/0446/4807/1331/files/jofoxutagujin.pdf
    • https://cdn.shopify.com/s/files/1/0430/8402/1921/files/charters_towers_state_high_school_uniform.pdf
    • https://cdn.shopify.com/s/files/1/0438/4253/5581/files/vifujuzanakokiwijonopetol.pdf
    • https://cdn.shopify.com/s/files/1/0428/3373/9932/files/mawikatezipejarelosabudor.pdf
    • https://cdn.shopify.com/s/files/1/0435/6558/0437/files/ben_tennyson_movie_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tavolotifejenirogamofiv.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_off000044d5.bin
f28f11c93aae8fc909856694d92bc7cb361c0c63f6f109602c09cd1f98f870c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44D5 1620 bytes
font_01_sfnt_off00004cfc.bin
235caab169f120d79c42fe57c986f2a76984fcc6c03e6a41d3a82bfa9c8870f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4CFC 5308 bytes
font_02_sfnt_off00005f03.bin
46649471a5966437285e295ea6dd5fffd5af04e0f1b40506a471cc79e30d25e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F03 10000 bytes

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