Malicious PDF — malware analysis report

Static analysis result for SHA-256 90a5692221508072…

MALICIOUS

PDF

43.1 KB Created: 2020-07-29 05:01:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c1531cb6eaae39a0eba0a3fd23c697a2 SHA-1: cf2c8afa471628ca756214e7b67277d201ed7f8e SHA-256: 90a56922215080727ab829fccc35cc5043cf5590620a372c305b87c4439938fd
150 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 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, with numerous external PDF links, many hosted on Shopify. The ML classifier also strongly flagged this PDF as malicious. The document body is heavily obfuscated and does not provide clear textual lures, but the presence of the redirector and link farm strongly suggests a phishing or malicious redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=apacer+ssd+widget
    • http://files.depedmisor.net/uploads/1/3/1/3/131398526/fdd5a7bb3dcbfa2.pdf
    • http://files.cathermanslandscaping.com/uploads/1/3/1/4/131452741/kisapelilis_gavive.pdf
    • http://files.clubroyaleboca.com/uploads/1/3/2/3/132303099/9894818.pdf
    • http://files.m2consultantsinc.com/uploads/1/3/1/6/131606127/9590f140.pdf
    • https://cdn.shopify.com/s/files/1/0428/3754/1031/files/39318517881.pdf
    • https://cdn.shopify.com/s/files/1/0434/5305/5128/files/fofigebutokesikabosejupu.pdf
    • https://cdn.shopify.com/s/files/1/0439/7318/1598/files/25565636489.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/garul.pdf
    • https://cdn.shopify.com/s/files/1/0433/9384/3358/files/bolerilowiwaze.pdf
    • https://cdn.shopify.com/s/files/1/0434/0819/5738/files/vobuvizakopixatijotum.pdf
    • https://cdn.shopify.com/s/files/1/0432/7922/0891/files/xasokavujofekin.pdf
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/85924261793.pdf
    • https://cdn.shopify.com/s/files/1/0432/6565/4946/files/xupomek.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tagitigupi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8468/5224/files/nibojojunakadani.pdf
    • https://cdn.shopify.com/s/files/1/0433/3237/0584/files/fovoxifumumotim.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/
    • https://cdn.shopify.com/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066f0.bin
401638cf00215d84862c9cff78302d8a9feaf14fb5c107ca8079c0429736e191		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66F0 4864 bytes
font_01_sfnt_off00007798.bin
7e22fc458c126cb6136627b5712bd5dffa3aba8fee8c59be54ed6509a2af87d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7798 13376 bytes

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