Malicious PDF — malware analysis report

Static analysis result for SHA-256 d80bca4ce5e764e8…

MALICIOUS

PDF

44.2 KB Created: 2020-08-06 05:13:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6935db0a9b38a7a5aa1209b4c95ef763 SHA-1: 135449ce00b3c124e67f2418810209e169366051 SHA-256: d80bca4ce5e764e86e152431682a30187a58d7f8fc1cfef771efb781ceddc17a
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link pointing to ttraff.ru, which is known malicious infrastructure. The document body, though heavily obfuscated, contains the same lure text and URLs found in the heuristics, suggesting an attempt to trick users into downloading further malicious content. No scripts were extracted from this sample.

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.ru/pify?keyword=business+email+etiquette+free+pdf
    • http://files.nathanpalmangus.com/uploads/1/3/1/4/131454304/sibineta.pdf
    • http://files.theafictionatereader.com/uploads/1/3/0/7/130776460/8620808.pdf
    • http://files.cedarwoodtrust.com/uploads/1/3/1/4/131437680/8894158.pdf
    • http://nudob.massinnofcourt.com/uploads/1/3/0/8/130874330/rejaxaxigonibu.pdf
    • http://files.olayouth-atlanta.org/uploads/1/3/2/6/132695575/9295476.pdf
    • https://cdn.shopify.com/s/files/1/0431/6702/3259/files/6602686210.pdf
    • https://cdn.shopify.com/s/files/1/0431/1947/6896/files/kemuvesefokamoxides.pdf
    • https://cdn.shopify.com/s/files/1/0428/0696/8483/files/26464311639.pdf
    • https://cdn.shopify.com/s/files/1/0432/7004/5864/files/36116888430.pdf
    • https://cdn.shopify.com/s/files/1/0431/8186/7176/files/46938731195.pdf
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/25497958048.pdf
    • https://cdn.shopify.com/s/files/1/0446/9784/5913/files/small_to_powerpoint.pdf
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/72811237641.pdf
    • https://cdn.shopify.com/s/files/1/0431/5627/5362/files/guxefajafama.pdf
    • https://cdn.shopify.com/s/files/1/0428/7594/5126/files/nunidukejepasikalefevo.pdf
    • https://cdn.shopify.com/s/files/1/0448/3943/6449/files/causes_of_air_pollution_essay.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_off00006f18.bin
72fa4ac7775c99957ee29911b7091326c746ef3b035c418e549246f4dbeded4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F18 5360 bytes
font_01_sfnt_off0000813a.bin
c0e1d5fad228df6203653aa9636a8d9ec6c2cc0bfc3268b6a111742c4148ccb4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x813A 10112 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.