Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c391e76a832524b…

MALICIOUS

PDF

49.2 KB Created: 2020-09-08 12:27:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 13bf2b084a88fe4ec4bdb8bc1c1ac880 SHA-1: a5218e6faaaf958251cdad95f379de4010af7627 SHA-256: 5c391e76a832524b02d907211a37c7a7e826395af9205c6fbdd2bece7393404d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a link to a known malicious redirector, ttraff.me, which is likely used to funnel victims to malicious content. The document also features a large number of links to other PDFs hosted on Shopify, potentially as part of a link farm or SEO manipulation tactic. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classifier's high confidence suggest malicious intent, likely related to 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.me/pify?keyword=android+emulator+proxy+command+line
    • http://$USER:password-www-proxy.company.com:80
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/7168/4252/files/67148366583.pdf
    • https://cdn.shopify.com/s/files/1/0431/3333/7768/files/namemipedizopa.pdf
    • https://cdn.shopify.com/s/files/1/0429/2250/8447/files/sonic_all_stars_racing_transformed_genesis_achievement.pdf
    • https://cdn.shopify.com/s/files/1/0429/7677/2250/files/huffman_code_c.pdf
    • https://cdn.shopify.com/s/files/1/0431/1433/2309/files/dapozosefudobexakigusar.pdf
    • https://static.usrfiles.com/ugd/764aaa_afb59d9b92034a1c9f13ad614bc929d9.pdf
    • https://static.usrfiles.com/ugd/fef373_2d3c092b064643758d77d9e8d226e810.pdf
    • https://static.usrfiles.com/ugd/bc0d1e_fa8a67af5b6b43c09ca1a174000119c4.pdf
    • https://static.usrfiles.com/ugd/53c654_c1b9d1e4696f49a08d35c391b4a84597.pdf
    • https://cdn.shopify.com/s/files/1/0437/4714/7928/files/jogubemoruxapigasijutak.pdf
    • https://cdn.shopify.com/s/files/1/0435/9821/7374/files/rarowukeji.pdf
    • https://cdn.shopify.com/s/files/1/0431/0846/6845/files/28976090206.pdf
    • https://cdn.shopify.com/s/files/1/0430/1655/2605/files/male_gametes_in_angiosperms_are_formed_by.pdf
    • https://static.usrfiles.com/ugd/544c7e_b6d95a942a5244beaafe52d41923780c.pdf
    • https://static.usrfiles.com/ugd/0789d5_0bd2dfb9e35d47d9b249929351659a6e.pdf
    • https://static.usrfiles.com/ugd/73c254_73ec5d8b13f14656bb13302401f98c59.pdf
    • https://static.usrfiles.com/ugd/b1b3ad_7b220873c7814cceabb4b2d7acab5617.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_off00008255.bin
1d91d219487bbb54abb865e8a2a223f5244c116dbdee4650379e8f41a60738f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8255 5200 bytes
font_01_sfnt_off000093f6.bin
37509759dd9f01cfc6eeef53e7f54484e5d5aa508540a49ce61ecb15c2af2808		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93F6 10544 bytes

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