Malicious PDF — malware analysis report

Static analysis result for SHA-256 55e072d7d6a5a28e…

MALICIOUS

PDF

51.8 KB Created: 2020-08-23 19:49:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f2a0a816ac88d2299d19b7736377113d SHA-1: 07bce3ff7716ac42c9270f6ee87e00ce75615790 SHA-256: 55e072d7d6a5a28e81887ea507c34e5d42513245f0390fc70d0c2155af58679f
130 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.ru/pify?keyword=free+business+consulting+html+templates'. This URL is part of a link farm designed to attract search engine traffic. The document body also contains a visual download lure, reinforcing the social engineering aspect. The primary intent appears to be redirecting users to malicious content through a deceptive link.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=free+business+consulting+html+templates
    • http://lozapokes.crispincampbell.com/uploads/1/3/1/3/131380213/4863887.pdf
    • http://files.genevievemariedavis.com/uploads/1/3/2/6/132681976/nokug-xulesabuwugates-virajiboxuzibu-vuzos.pdf
    • http://zazosu.dragonflyspiritualspa.com.au/uploads/1/3/0/8/130814088/b72c6e11ec171.pdf
    • https://cdn.shopify.com/s/files/1/0434/8110/4541/files/spontaneous_bacterial_peritonitis_treatment_nice_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0431/6682/6656/files/bisutalalaxom.pdf
    • https://cdn.shopify.com/s/files/1/0433/4206/9918/files/gibadi.pdf
    • https://cdn.shopify.com/s/files/1/0429/6884/2393/files/jugoteladagedir.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/nudaziv.pdf
    • https://cdn.shopify.com/s/files/1/0433/9325/3526/files/angielski_gramatyka_edgard.pdf
    • https://cdn.shopify.com/s/files/1/0433/5622/5688/files/37290768925.pdf
    • https://cdn.shopify.com/s/files/1/0457/8652/9948/files/airlift_performance_controller_mount.pdf
    • https://cdn.shopify.com/s/files/1/0433/8935/4142/files/sisoderifakek.pdf
    • https://cdn.shopify.com/s/files/1/0449/0254/7611/files/fun_speaking_activities_for_adults.pdf
    • https://cdn.shopify.com/s/files/1/0431/5647/1959/files/sutexavurukazawozodadoga.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000823c.bin
2a986b6ef0404b1878a6d2f9fb80a44ca302d4d91f2f5670f1cbf8a10c4e5721
pdf-font-stream PDF embedded font (sfnt) at offset 0x823C 5444 bytes
font_01_sfnt_off00009482.bin
2b17894289ef4ac549ca5ccbfe538e6ebde94701791c0542cba9a71f2d67f349
pdf-font-stream PDF embedded font (sfnt) at offset 0x9482 2268 bytes
font_02_sfnt_off00009e95.bin
a4b25e3ffbbecbd9bd9d4d81cf21aa00b7b9a62d790e6cc96716c885569d8c7f
pdf-font-stream PDF embedded font (sfnt) at offset 0x9E95 10364 bytes