Malicious PDF — malware analysis report

Static analysis result for SHA-256 d45ee844f1f00a19…

MALICIOUS

PDF

37.9 KB Created: 2020-08-16 22:22:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e56356296c5406ef2e6b0c2f5aa59ec0 SHA-1: 849760c6614cd2466f76709ddb6074aaa4e01622 SHA-256: d45ee844f1f00a19c056db2257a851d9862085cd9e0c78d3b3c5470e7afdaa1d
130 Risk Score

Malware Insights

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

The PDF contains a lure related to 'Android file transfer' and includes a malicious redirector link pointing to ttraff.ru. It also features a large number of embedded links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The presence of a visual download button further supports a social engineering attack. No scripts were extracted, but the PDF structure and embedded links indicate a phishing or redirection attempt.

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.ru/pify?keyword=android+file+transfer+come+si+usa
    • http://rigugunum.possibleframe.com/uploads/1/3/1/3/131379730/6819794.pdf
    • http://files.thecontactlensmuseum.org/uploads/1/3/0/8/130873945/gijatevofele_kaxinix.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zipepatijexozuzazes.pdf
    • https://cdn.shopify.com/s/files/1/0428/2780/8935/files/lamuvoxab.pdf
    • https://cdn.shopify.com/s/files/1/0429/2519/5427/files/bucket_list_full_movie_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gejazopemovaro.pdf
    • https://cdn.shopify.com/s/files/1/0432/7473/1685/files/pemilupuleninalimokakaz.pdf
    • https://cdn.shopify.com/s/files/1/0430/2520/3354/files/59914272923.pdf
    • https://cdn.shopify.com/s/files/1/0440/5395/4710/files/45755830911.pdf
    • https://cdn.shopify.com/s/files/1/0431/7285/5957/files/91657389355.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_off000056cb.bin
3d2d58f859672b3fd0219f597040748a09ed348ccb4e04b94b017fd7e60462e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56CB 5156 bytes
font_01_sfnt_off00006836.bin
8653820de080e77f45e468e7dd4178573058a76b75857f79ff9defa32e26ecfd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6836 10252 bytes

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