Malicious PDF — malware analysis report

Static analysis result for SHA-256 b97fe9f3b78a0289…

MALICIOUS

PDF

53.7 KB Created: 2020-08-06 19:16:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a7f8e836744c1f9196a4d85a5b862cf4 SHA-1: 024715797e440f7a66b17b1b0972ca1c41a31d15 SHA-256: b97fe9f3b78a02899745d1292d8d45611057e6ebb080cd367b1f3745c64e8701
128 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, disguised as a free download for a 'bakery business plan pdf'. This is further supported by heuristics indicating a malicious redirector and a link farm designed for SEO manipulation. The document body contains the lure text and the malicious URL.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bakery+business+plan+pdf+free+download
    • http://files.selfdefensetacticsbyjamespozen.com/uploads/1/3/1/3/131382590/rezoxiget.pdf
    • http://files.destinyjoydesigns.com/uploads/1/3/0/9/130969053/rusineresuvarovuda.pdf
    • http://files.akfilmstudios.com/uploads/1/3/0/7/130739265/litotibenokigem.pdf
    • http://nabewakox.uaplantscienceclub.com/uploads/1/3/0/8/130813821/2e0fe732bd8e2.pdf
    • http://files.craftastics.co.uk/uploads/1/3/0/7/130740213/bovebow-vevefe.pdf
    • https://cdn.shopify.com/s/files/1/0434/0708/1622/files/39959619685.pdf
    • https://cdn.shopify.com/s/files/1/0432/8875/6374/files/nijixikezofazoran.pdf
    • https://cdn.shopify.com/s/files/1/0434/1540/4702/files/emoji_show_me_the_money.pdf
    • https://cdn.shopify.com/s/files/1/0429/4184/1575/files/46569971088.pdf
    • https://cdn.shopify.com/s/files/1/0440/2210/4229/files/50652485149.pdf
    • https://cdn.shopify.com/s/files/1/0431/6676/1120/files/kaxujijitawimefekerub.pdf
    • https://cdn.shopify.com/s/files/1/0438/4056/9494/files/nimumatakuneduditivezaju.pdf
    • https://cdn.shopify.com/s/files/1/0433/6805/4940/files/37258686187.pdf
    • https://cdn.shopify.com/s/files/1/0432/2459/6642/files/budojitelegimifetu.pdf
    • https://cdn.shopify.com/s/files/1/0433/1218/5502/files/32325102822.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
font_00_sfnt_off00007398.bin
1ce87978d0380f838c67dfe8bafa08fabca5b568b8be9f36b59022ebf0cc2025		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7398 5480 bytes
font_01_sfnt_off0000865b.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620		 pdf-font-stream PDF embedded font (sfnt) at offset 0x865B 1800 bytes
font_02_sfnt_off00008ee8.bin
53bdc6d346750c758ad2e810003d404e0c763e5ff7a696ab619b317aa3acbd06		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EE8 10524 bytes
font_03_sfnt_off0000b2fa.bin
0b4f9904cc63eeb245c31300081beae5dd130040598f84ad13cd294c90142161		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB2FA 16660 bytes

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