Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d078d7c093f6504…

MALICIOUS

PDF

58.5 KB Created: 2020-08-04 10:47:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6794d8793193ee9e49142c249ef9f720 SHA-1: 796fb450c3cb204f4e2e308104c777c493d020ac SHA-256: 4d078d7c093f650459bfa10665719e209a49dddb5afe729778228e1ef5381409
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.cc'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=artikel+akuntansi+syariah+pdf', suggesting a lure to disguise malicious activity. The presence of numerous external PDF links indicates a link farm or SEO poisoning attempt, likely to increase the visibility of the malicious redirector.

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=artikel+akuntansi+syariah+pdf
    • http://files.solacevirtualtours.com/uploads/1/3/0/7/130738719/91497.pdf
    • http://xurufa.kimrichardsart.com/uploads/1/3/2/7/132712315/naxelamafos-fugaluf-vulibuwi.pdf
    • http://files.nmwordprocessing.com/uploads/1/3/1/0/131070362/wutor.pdf
    • http://files.artbodysoulstudio.com/uploads/1/3/1/4/131454034/9519699.pdf
    • http://files.magnificatsm.com/uploads/1/3/0/7/130775701/c300667020e4b37.pdf
    • https://cdn.shopify.com/s/files/1/0435/5502/9141/files/vutuxanibamovexo.pdf
    • https://cdn.shopify.com/s/files/1/0433/6277/9295/files/65455260357.pdf
    • https://cdn.shopify.com/s/files/1/0432/2505/5389/files/pugupovurokeninuzi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/tomoduvitasa.pdf
    • https://cdn.shopify.com/s/files/1/0431/3235/4711/files/watifarikanizivu.pdf
    • https://cdn.shopify.com/s/files/1/0427/5326/1724/files/rexusoweti.pdf
    • https://cdn.shopify.com/s/files/1/0431/9353/2573/files/lawemosemegatatevubixeg.pdf
    • https://cdn.shopify.com/s/files/1/0435/9802/0767/files/41962860638.pdf
    • https://cdn.shopify.com/s/files/1/0433/0677/8777/files/87358629906.pdf
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/vemaxojurix.pdf
    • https://cdn.shopify.com/s/files/1/0434/0406/6983/files/perikelab.pdf
    • https://cdn.shopify.com/s/files/1/0433/1149/7366/files/33945945241.pdf
    • https://cdn.shopify.com/s/files/1/0437/8152/1560/files/zazitotafanatodefufilu.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000a066.bin
5d64afc787eab779e2969fb948052bda0b72048574ae094af4cdb37519218d15		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA066 25632 bytes
font_00_sfnt_off00006d4a.bin
84b772792c86be3de73b806841e2302fa5834600d6d2a5cd0c23846aa8dac741		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4A 5056 bytes
font_01_sfnt_off00007e6f.bin
2272def0bc4844b93c958f64d4f0fe104d24cd610cad9d7e111fd2792167fad7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E6F 9900 bytes
font_03_sfnt_off0000ce8d.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCE8D 4324 bytes

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