Malicious PDF — malware analysis report

Static analysis result for SHA-256 6afc1c245527d71b…

MALICIOUS

PDF

44.2 KB Created: 2020-08-09 08:26:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad648116def0ee5e2c948d06b94034cf SHA-1: f4cdc30ddd4cb1408f9eff958039ff36a55452d5 SHA-256: 6afc1c245527d71bf40839e3d57846935b18db02fad7ac7e86b76ca5f7923dd5
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of links, many of which point to Shopify domains hosting other PDFs, suggesting an SEO link farm. One critical heuristic identified a link to known malicious redirector infrastructure at ttraff.com. The document body, though partially corrupted, contains text related to 'Adobe photoshop cc 2020 shortcut keys pdf', likely a lure to encourage clicks. The primary attack pattern involves redirecting users through malicious infrastructure, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=adobe+photoshop+cc+2020+shortcut+keys+pdf
    • http://zexoj.seahillfarm.com/uploads/1/3/1/0/131070450/werulegusoxere-fobekajevivetak-wolet.pdf
    • http://files.thevisualnarrative.com/uploads/1/3/1/4/131407086/5196340.pdf
    • http://files.feralcatrecoverycentre.com/uploads/1/3/0/7/130776241/benopop-lufevonoxos-rabudepotelule-notebuxavapiw.pdf
    • http://files.mellinamathclass.com/uploads/1/3/2/7/132712006/4781525.pdf
    • http://files.withinyourmeansdesign.com/uploads/1/3/1/4/131437242/pekem_gemevifemifoses.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/0776/1819/files/visobuj.pdf
    • https://cdn.shopify.com/s/files/1/0429/1608/5923/files/55567533188.pdf
    • https://cdn.shopify.com/s/files/1/0429/0599/3375/files/gobuzowifukonitamip.pdf
    • https://cdn.shopify.com/s/files/1/0432/1568/3744/files/erd_case_study_examples_with_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0430/6341/0845/files/botakoxagexuzexinamoramu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3489/4755/files/jejasixanoniwi.pdf
    • https://cdn.shopify.com/s/files/1/0433/3256/7195/files/77541878996.pdf
    • https://cdn.shopify.com/s/files/1/0437/5438/9665/files/70466707574.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98690712505.pdf
    • https://cdn.shopify.com/s/files/1/0430/7494/5184/files/belesenaxumurazutigev.pdf
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/gikaxitawedutem.pdf
    • https://cdn.shopify.com/s/files/1/0428/7217/6799/files/45563998301.pdf
    • https://cdn.shopify.com/s/files/1/0440/2990/2998/files/pofizozutexumesomiwikade.pdf
    • https://cdn.shopify.com/s/files/1/0432/3039/6574/files/2444947751.pdf
    • https://cdn.shopify.com/s/files/1/0437/9204/0097/files/best_binary_options_strategy.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006cc9.bin
d05c400b60cc698ef6fa59863672f70dba6421963228976f855801fbbf4d28de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC9 5572 bytes
font_01_sfnt_off00007fc3.bin
3aec6fb6f4b1e8e14d03edab5e9e4b3083ade9cf01241e000aeb6946e98c6aff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC3 10532 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.