Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5baf26322fc4b6f…

MALICIOUS

PDF

33.4 KB Created: 2020-08-02 11:52:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55a2c5ecd16fce55a4d8e8d7f8c8a103 SHA-1: 896a0d42678325f15a3504166397e6ab5d117a40 SHA-256: a5baf26322fc4b6f835c6ddf4d13c0ec335ad009d8b8a1795e7dc0c66bddae43
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing indicating it links to a known malicious redirector, specifically 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL and references a PDF title that likely serves as a lure. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious content.

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.cc/pify?keyword=design+of+wood+structures+breyer+pdf
    • http://files.drkentpsyd.com/uploads/1/3/0/7/130775033/jonuxejoviral.pdf
    • http://files.onelittlelight.org/uploads/1/3/0/7/130776055/5592230.pdf
    • http://files.samanthaldoyle.com/uploads/1/3/2/7/132712268/gojajosi.pdf
    • http://files.buildingthemontessorinetworkblog.com/uploads/1/3/1/8/131857140/7544145.pdf
    • https://cdn.shopify.com/s/files/1/0430/9676/8661/files/pagofufozobevililunake.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sarozasupevukofapunaxovu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9513/8208/files/59546641481.pdf
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/12493343298.pdf
    • https://cdn.shopify.com/s/files/1/0434/4587/8941/files/pulijudirosol.pdf
    • https://cdn.shopify.com/s/files/1/0428/7735/4143/files/82492410178.pdf
    • https://cdn.shopify.com/s/files/1/0431/5345/7320/files/49687168096.pdf
    • https://cdn.shopify.com/s/files/1/0437/1991/7720/files/rufagewaxeve.pdf
    • https://cdn.shopify.com/s/files/1/0438/8257/8088/files/lisulevijinu.pdf
    • https://cdn.shopify.com/s/files/1/0430/5325/2757/files/limajusebabegupufozisolux.pdf
    • https://cdn.shopify.com/s/files/1/0433/8604/4572/files/how_to_iterate_through_a_map_c.pdf
    • https://cdn.shopify.com/s/files/1/0430/9703/0805/files/wojabujogurezosu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2775/1321/files/16926553258.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_off00004642.bin
29cc94988ac762b3f23a94901370bec153cd17989a63d055e3a62261f7a20748		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4642 5416 bytes
font_01_sfnt_off000058dc.bin
b183838c205a53a596ef935d7c0e46174da773ce96edad507263591f81fee398		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58DC 9304 bytes

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