Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1b114dfc4e0a343…

MALICIOUS

PDF

33.4 KB Created: 2020-08-07 15:20:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b42018af950ee0842cde78b8c00fa007 SHA-1: 6530e7e63ec013ea9d29f8eec3d565886fbcb503 SHA-256: e1b114dfc4e0a343c4b41952bc91d89276bc409b2c06b5d61253cd3c5cde0bc9
150 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, includes the target URL and references 'wkhtmltopdf', suggesting it was generated programmatically. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy to improve search engine ranking and distribute malicious content. The primary malicious IOC is the redirector URL.

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=english+phonetics+and+phonology+carr+pdf
    • http://files.kchristianson.com/uploads/1/3/0/8/130815303/203bfc54fa0.pdf
    • http://files.swatarachurchofgod.org/uploads/1/3/1/3/131379397/ninanijapaz-gunenigavivezo-posakuzowo-pexam.pdf
    • http://files.artlynchactingcoach.com/uploads/1/3/1/3/131380868/tagaxe.pdf
    • http://files.futureproofedcounseling.com/uploads/1/3/1/6/131637477/880d8.pdf
    • http://rewuge.otellis-restaurant.com/uploads/1/3/0/7/130738531/muxopapofu-zovefir-jafenekujiku.pdf
    • https://cdn.shopify.com/s/files/1/0431/4542/9160/files/xijafevilemop.pdf
    • https://cdn.shopify.com/s/files/1/0432/1614/2497/files/94627597492.pdf
    • https://cdn.shopify.com/s/files/1/0437/3990/6209/files/kepikuzivomisazeleda.pdf
    • https://cdn.shopify.com/s/files/1/0433/9607/1589/files/langman_s_medical_embryology_13th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0430/9896/4117/files/radasejivunoxovimujivik.pdf
    • https://cdn.shopify.com/s/files/1/0440/6139/3061/files/ncert_11_biology_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0433/7546/0515/files/1767403376.pdf
    • https://cdn.shopify.com/s/files/1/0433/0681/1560/files/paradise_lost_as_an_epic.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/palafasejuzanuz.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_off0000446b.bin
022b11e27d3d47fed7095372cba6710ae75505df9ef7065d7df6ca15cf1e2924		 pdf-font-stream PDF embedded font (sfnt) at offset 0x446B 5476 bytes
font_01_sfnt_off00005717.bin
0b76092764cab42f53c077ea0b882091044c87da0fbb6752ca09d08a631b49d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5717 9448 bytes

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