Malicious PDF — malware analysis report

Static analysis result for SHA-256 e78f883d9fd82430…

MALICIOUS

PDF

42.4 KB Created: 2020-08-03 15:09:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a79fa1a40a8a2adb46f569c9dde2a44 SHA-1: 825e6e3f3f46caa2673e76ab238385962007b422 SHA-256: e78f883d9fd824300ce493a9eec6c3a39e322e285badd79825bf4f5f5a2eb47e
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=bonaire+tourist+map+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links. The document body, though partially corrupted, includes text related to a 'Bonaire tourist map pdf', suggesting a lure to disguise the malicious intent. The primary goal appears to be redirecting the user to a malicious site.

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=bonaire+tourist+map+pdf
    • http://files.energytransforming.com/uploads/1/3/1/3/131380354/zarijoxomazuxu-fanofaliw-lopaxasariruto-bowewodabiza.pdf
    • http://files.steadfastanimalsolutions.com/uploads/1/3/1/3/131383630/9911318.pdf
    • http://files.roadrunningrules.com/uploads/1/3/1/4/131407952/9340773.pdf
    • https://cdn.shopify.com/s/files/1/0436/2017/1936/files/mukisajifudijos.pdf
    • https://cdn.shopify.com/s/files/1/0429/5298/2684/files/58060861081.pdf
    • https://cdn.shopify.com/s/files/1/0437/5982/9149/files/mexojamukunidef.pdf
    • https://cdn.shopify.com/s/files/1/0434/0639/3496/files/47512799148.pdf
    • https://cdn.shopify.com/s/files/1/0439/9444/8030/files/42173446331.pdf
    • https://cdn.shopify.com/s/files/1/0429/8607/8369/files/72441790508.pdf
    • https://cdn.shopify.com/s/files/1/0431/1931/3062/files/44665544971.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78549170372.pdf
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/71975011765.pdf
    • https://cdn.shopify.com/s/files/1/0434/9391/6837/files/55809102470.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/31706703201.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wetitoditasenubekuxon.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_off00006811.bin
4659c22e78e38a5e7a9ea59b2e6d350c6fc6227d8a09fe05505c12559a714a59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6811 5204 bytes
font_01_sfnt_off000079af.bin
0d866d629d0cebad4e2623fd7c3c38cb566a16a531773aeb0327e7d2e3217f82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79AF 10384 bytes

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