Malicious PDF — malware analysis report

Static analysis result for SHA-256 35ed667ab4938005…

MALICIOUS

PDF

41.5 KB Created: 2020-08-06 18:07:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 765eab046dfa321083e66c29c971166a SHA-1: 1b549346cd225e57efc7b6a92aef6d5d8a839479 SHA-256: 35ed667ab49380050085850d03547122f77063df80e742941bd1d70c5992f38c
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=critical+care+transport+pdf'. This indicates the document's primary purpose is to redirect users to a malicious site, likely for phishing or malware distribution. The presence of a large number of external PDF links, many hosted on Shopify, further supports the SEO link farm tactic used to obscure the malicious redirector.

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.com/pify?keyword=critical+care+transport+pdf
    • http://xasozi.mtbethelchurchigh.org/uploads/1/3/1/4/131407558/jusejodizamibe.pdf
    • http://files.nishati-healer.org/uploads/1/3/1/4/131406835/sekakuvogapida_riniroluvozil.pdf
    • http://files.bobabobateabar.com/uploads/1/3/0/9/130969115/7203788.pdf
    • http://files.rollinakersfarm.com/uploads/1/3/1/8/131857024/6261895.pdf
    • http://files.voidandassociates.com/uploads/1/3/1/0/131070581/c76a81d74.pdf
    • https://cdn.shopify.com/s/files/1/0433/7228/2008/files/wuzurepanewuvotokini.pdf
    • https://cdn.shopify.com/s/files/1/0429/4282/4614/files/jupuvanazowilefulagisizab.pdf
    • https://cdn.shopify.com/s/files/1/0433/0999/0043/files/bridges_math_5th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0436/9724/2280/files/farifegopinafaxifisuparu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6988/8920/files/65699356192.pdf
    • https://cdn.shopify.com/s/files/1/0435/9910/2110/files/binezozetudusovis.pdf
    • https://cdn.shopify.com/s/files/1/0432/4281/5643/files/tuwubajixepar.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54903558396.pdf
    • https://cdn.shopify.com/s/files/1/0431/5440/7578/files/raleretukigixu.pdf
    • https://cdn.shopify.com/s/files/1/0434/4800/8866/files/the_library_of_babel_jorge_luis_borges.pdf
    • https://cdn.shopify.com/s/files/1/0437/7139/6257/files/zaliwupudasa.pdf
    • https://cdn.shopify.com/s/files/1/0435/9585/8088/files/fegivupapimu.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_off000065f9.bin
ad5fdd950011c2efc25c6819bb24dcbe03f5ba829d4b3a42c9679d7c387548a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65F9 5052 bytes
font_01_sfnt_off00007730.bin
8e414fb723a5f9286ca14346e9e1a15808d55ff70202cb14cf4a728039a2b5e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7730 9936 bytes

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