Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb12dc1ab9a52e5e…

MALICIOUS

PDF

43.4 KB Created: 2020-08-06 13:30:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7710f75decf2fc4c57046b6eb26d374c SHA-1: 2d8c725433e4435069afb12431e2ea129a283daa SHA-256: bb12dc1ab9a52e5e268bc485b8be809700b0965e8cfdecabc6f890ab37fb04c4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=certificate+of+origin+template+pdf'. Additionally, a PDF link farm heuristic indicates the document is designed to host numerous external links, with 'https://cdn.shopify.com/s/files/1/043424022677/files/zekorerute.pdf' being one of the first identified. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the lure. The primary intent appears to be redirecting users to 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=certificate+of+origin+template+pdf
    • http://giwibi.princetonshowjumping.com/uploads/1/3/1/3/131379246/nabimob.pdf
    • http://files.valleycatsbengals.com/uploads/1/3/1/4/131483138/waweda-laxalafupiduto-mofozivosizeb-munome.pdf
    • http://files.larrysserviceandtowing.com/uploads/1/3/2/6/132680813/8335763.pdf
    • http://files.hearthisspace.com/uploads/1/3/2/6/132695408/neliwim_judimenorosati_zevataf.pdf
    • https://cdn.shopify.com/s/files/1/0434/2402/2677/files/zekorerute.pdf
    • https://cdn.shopify.com/s/files/1/0436/6955/3305/files/jefedufarurugasave.pdf
    • https://cdn.shopify.com/s/files/1/0436/5362/8062/files/fululofidoma.pdf
    • https://cdn.shopify.com/s/files/1/0434/7301/0850/files/sexum.pdf
    • https://cdn.shopify.com/s/files/1/0435/5984/6051/files/98566574187.pdf
    • https://cdn.shopify.com/s/files/1/0430/2536/7194/files/online_converter_into_ppt.pdf
    • https://cdn.shopify.com/s/files/1/0433/9082/8700/files/faruzajixomegaranuf.pdf
    • https://cdn.shopify.com/s/files/1/0435/4162/7029/files/romarivujave.pdf
    • https://cdn.shopify.com/s/files/1/0435/6544/9371/files/ziwujunifejonofasotuda.pdf
    • https://cdn.shopify.com/s/files/1/0433/2129/5006/files/tinkers_alien_modifier.pdf
    • https://cdn.shopify.com/s/files/1/0432/0159/3505/files/best_enb_for_skyrim_se.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/11783771814.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9354/files/97571774852.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_off00006aeb.bin
a56af51b66e3e5c49e97699658569a3fc22b62cd3ca923112fbcd04a33c607a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEB 5204 bytes
font_01_sfnt_off00007c8a.bin
602286450468dc1be16ec4ef59b136f3b073a99389b11ba9d4577ecada5efbac
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8A 10428 bytes