Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcb7f093a1fa7910…

MALICIOUS

PDF

46.1 KB Created: 2020-08-02 20:38:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f54f23f0c562b4f3a7cef6123bd2487 SHA-1: fd151b7267f5655fbf13c4eefdb0ef2d3176f1b8 SHA-256: bcb7f093a1fa79106e28d61e2fa03f2b3f1a9580e3edc2f9a4ef3b93cc04fbb9
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary link pointing to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=gm+service+manual+pdf'. This indicates a phishing or scam attempt, likely aiming to redirect users to malicious content. The document body, though heavily obfuscated, contains references to the redirector URL.

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=gm+service+manual+pdf
    • http://files.anessaarehart.com/uploads/1/3/1/3/131384374/df9b8f8c84.pdf
    • http://files.kerryedwardsphotography.com/uploads/1/3/1/6/131637529/7966580.pdf
    • http://files.jordansidfield.com/uploads/1/3/1/3/131398094/noxisobanizo-zasifekud-wufevulamad-pemivapigawif.pdf
    • http://files.mainetwpadultlearning.com/uploads/1/3/1/4/131438784/wusilad-repupo-biralor.pdf
    • https://cdn.shopify.com/s/files/1/0431/5453/8656/files/64781225597.pdf
    • https://cdn.shopify.com/s/files/1/0434/4853/3142/files/zufowudokejif.pdf
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/38038383210.pdf
    • https://cdn.shopify.com/s/files/1/0429/9279/5801/files/sifijerofodizem.pdf
    • https://cdn.shopify.com/s/files/1/0427/7927/9527/files/nuxezumavotap.pdf
    • https://cdn.shopify.com/s/files/1/0438/7035/5611/files/runirenimurefizitobevew.pdf
    • https://cdn.shopify.com/s/files/1/0430/6737/5777/files/robotivolesexo.pdf
    • https://cdn.shopify.com/s/files/1/0434/1887/8117/files/zemuj.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/ruxulesaguzenasodamoge.pdf
    • https://cdn.shopify.com/s/files/1/0450/6599/4392/files/john_deere_x300_parts.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/ashoka_chakravartin_samrat.pdf
    • https://cdn.shopify.com/s/files/1/0440/2338/2166/files/diriwijatimejevitunosekag.pdf
    • https://cdn.shopify.com/s/files/1/0431/9179/5875/files/dedekevibifatava.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069c4.bin
06c4fd603e4edb49d0b1dbcd18149e2157a80189d1f79627c270f39f4e82281a
pdf-font-stream PDF embedded font (sfnt) at offset 0x69C4 5084 bytes
font_01_sfnt_off00007af4.bin
96c89e0da28cd1509eb1c9021f881695011d24ce90c7ff0efa33840c5f6a72b6
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF4 10108 bytes
font_02_sfnt_off00009d9d.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D9D 4324 bytes