Malicious PDF — malware analysis report

Static analysis result for SHA-256 96b7b049725abd7c…

MALICIOUS

PDF

44.8 KB Created: 2020-08-11 15:18:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe97b63c50d8427c0431f7f9ba5dcc54 SHA-1: 03464deec01771b9d7b05301dbf6036603c43a3d SHA-256: 96b7b049725abd7c9e6c757bcdb24e49e966edd5c92299f73f9e7785c1d94a4b
120 Risk Score

Malware Insights

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

The PDF document contains a link farm and a direct link to a known malicious redirector. The primary malicious URL is https://ttraff.cc/pify?keyword=professional+english+in+use+business+pdf, which likely serves as a lure to a phishing or malware distribution site. The document body, though heavily obfuscated, contains references to this URL and numerous other PDF links hosted on Shopify, suggesting a coordinated effort to distribute 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=professional+english+in+use+business+pdf
    • http://files.lrelitebasketball.com/uploads/1/3/2/8/132814375/tefemi.pdf
    • http://files.healthwisegippsland.com/uploads/1/3/0/9/130969663/wowebanenorapo.pdf
    • http://wewapawez.tcmusicteacherscollective.com/uploads/1/3/0/7/130739385/tagol.pdf
    • http://files.andreaayres.com/uploads/1/3/1/4/131453698/dimexur_detavudalo.pdf
    • http://tuzesit.hairandbeautybyrochglow.com/uploads/1/3/2/8/132814930/kukevo.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/95465127400.pdf
    • https://cdn.shopify.com/s/files/1/0439/1642/7419/files/39790077727.pdf
    • https://cdn.shopify.com/s/files/1/0428/9688/3868/files/rotate_labels_ggplot2.pdf
    • https://cdn.shopify.com/s/files/1/0437/3420/4567/files/febofedewozobababidika.pdf
    • https://cdn.shopify.com/s/files/1/0434/1514/2551/files/chips_challenge_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/5693/1751/files/41654207209.pdf
    • https://cdn.shopify.com/s/files/1/0433/8227/6250/files/52752904055.pdf
    • https://cdn.shopify.com/s/files/1/0432/1509/3924/files/jedukapoweku.pdf
    • https://cdn.shopify.com/s/files/1/0431/2429/3796/files/76806152876.pdf
    • https://cdn.shopify.com/s/files/1/0433/1136/6309/files/denobovevumemifezimegimub.pdf
    • https://cdn.shopify.com/s/files/1/0433/4085/7494/files/8800048065.pdf
    • https://cdn.shopify.com/s/files/1/0434/4607/5542/files/45828212986.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_off000070de.bin
282312bf46c69afc5f087cd78d7d98db1ef53827d25bdd4d0a74f4007bb52e49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70DE 5444 bytes
font_01_sfnt_off0000834b.bin
227ac3e97f15660f55c303326548057c3b29cd3df3048d5b4c4519ef3076e1b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x834B 10240 bytes

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