Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee4466ebdd33819b…

MALICIOUS

PDF

33.2 KB Created: 2020-08-14 04:43:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6eae13d13e18f2b20aabbafa63017854 SHA-1: 5b8fe1837efe1448fe72c1dd7e1292a4b05afad2 SHA-256: ee4466ebdd33819b96902890314905152e608bbedf3a5b99fa48b274e6fce5f4
120 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 URL that triggers the malicious redirector. This suggests the PDF is designed to lead users to malicious content via a link farm.

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=johnsonite+cove+base+data+sheet
    • http://files.diamondavestudios.com/uploads/1/3/1/8/131856380/2039366.pdf
    • http://files.pclawoffice.com/uploads/1/3/1/4/131438473/287938a9492292.pdf
    • http://files.susannaclasby.com/uploads/1/3/0/7/130740210/615ec3a70d568.pdf
    • http://nivasasid.maikenmsrd.com/uploads/1/3/1/4/131437423/zagadetegub_kirute_padak.pdf
    • https://cdn.shopify.com/s/files/1/0434/8674/0646/files/legagogefijuwajifunatoval.pdf
    • https://cdn.shopify.com/s/files/1/0434/6681/7702/files/jijifafitufunaninuwovavuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/1715/0357/files/21126216656.pdf
    • https://cdn.shopify.com/s/files/1/0433/8375/0821/files/40963783381.pdf
    • https://cdn.shopify.com/s/files/1/0429/1395/6006/files/steve_yegge_google.pdf
    • https://cdn.shopify.com/s/files/1/0429/8201/5129/files/lozota.pdf
    • https://cdn.shopify.com/s/files/1/0429/2725/9811/files/33430596036.pdf
    • https://cdn.shopify.com/s/files/1/0427/4978/8327/files/build_me_up_buttercup_sheet_music_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/3350/9534/files/welitod.pdf
    • https://cdn.shopify.com/s/files/1/0435/3681/0135/files/44135109343.pdf
    • https://cdn.shopify.com/s/files/1/0434/7281/4245/files/lebaginuwo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9728/3996/files/anecdotal_information_nutrition.pdf
    • https://cdn.shopify.com/s/files/1/0440/1725/4558/files/45457156433.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_off00004607.bin
bc26696ded1583f93e05c37bc92792bbc3f57073b0a3f3f77d564f8352f71466		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4607 5088 bytes
font_01_sfnt_off00005749.bin
18c1aa99cb95e916e92a8e6401bb772a6a796823ad3a6d46db85fa97751e0729		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5749 9604 bytes

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