Malicious PDF — malware analysis report

Static analysis result for SHA-256 931c4568542ce1df…

MALICIOUS

PDF

90.9 KB Created: 2020-08-21 05:20:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: def985a47ec8c44194c10a465c0af94c SHA-1: 9a192902432f728382082d77c8b1808c8a821bb5 SHA-256: 931c4568542ce1df12afdbf1fc8b7e1b05a2bf3ce70dca07543433a9965a370b
140 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the malicious URL. The presence of a callback lure suggests a social engineering tactic to engage the victim further. No scripts were extracted, limiting the analysis of direct payload execution.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=catalyst+2960+datasheet
    • http://files.patrickhowe-postpersonalism.com/uploads/1/3/1/3/131379223/1472053.pdf
    • http://files.boatswayne.com/uploads/1/3/0/7/130775357/vowenoroxur.pdf
    • https://cdn.shopify.com/s/files/1/0430/7881/1797/files/dual_wield_parrying.pdf
    • https://cdn.shopify.com/s/files/1/0433/4888/5662/files/84266167998.pdf
    • https://cdn.shopify.com/s/files/1/0430/0098/7811/files/seluxamumi.pdf
    • https://cdn.shopify.com/s/files/1/0437/1460/9303/files/39766824320.pdf
    • https://cdn.shopify.com/s/files/1/0429/6874/4087/files/ther_ex_notes.pdf
    • https://cdn.shopify.com/s/files/1/0431/4172/6370/files/bibukenipelirovepokem.pdf
    • https://cdn.shopify.com/s/files/1/0431/4847/6570/files/sheets_and_giggles_founder.pdf
    • https://cdn.shopify.com/s/files/1/0436/9691/4600/files/amelie_nothomb_reportage_japon.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52325197595.pdf
    • https://cdn.shopify.com/s/files/1/0439/0925/1227/files/pogavami.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_off000116b8.bin
451c9127d285257d1370e3e62d8cdc95a9ac9c030993e53e8e5151690d3e9536		 pdf-font-stream PDF embedded font (sfnt) at offset 0x116B8 5408 bytes
font_01_sfnt_off00012901.bin
874e6fa19393260ce051cbdf27489366bfc92dd3f421d0a1ea4f4f7007099ad7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12901 17212 bytes

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