Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea66aed8c5f566a2…

MALICIOUS

PDF

43.3 KB Created: 2020-08-04 21:45:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1cf257871b0e3c62093e736610f705a2 SHA-1: 3abebc694f1e7d7929112116aab382613f19bfa0 SHA-256: ea66aed8c5f566a281d9b66c49b2d11ebd7212be6cb5e33cd386a03f30f59383
152 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, with the primary malicious redirector being https://ttraff.com/pify?keyword=anita+desai+village+by+the+sea+pdf. The document also features a link farm with 18 external PDF links, predominantly hosted on cdn.shopify.com, suggesting an attempt to manipulate search engine results or distribute further malicious content. The ML classifier strongly flagged this PDF as malicious.

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=anita+desai+village+by+the+sea+pdf
    • http://files.schrockhampshires.com/uploads/1/3/1/4/131409442/pufepazes.pdf
    • http://files.razorpedia.com/uploads/1/3/0/8/130874329/butebefovanaka_gusanuvemiku.pdf
    • http://files.haley-grace.com/uploads/1/3/1/3/131379732/447d739.pdf
    • http://files.colinmooresculpture.com/uploads/1/3/2/7/132710592/moduzegirotewu_sofinimoruve.pdf
    • http://zikined.noradragoon.com/uploads/1/3/0/7/130775195/tuxisovo_laxebugefil_novebulexekiwun.pdf
    • https://cdn.shopify.com/s/files/1/0431/8140/8420/files/33174863275.pdf
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/free_online_converter_to_jpg_file.pdf
    • https://cdn.shopify.com/s/files/1/0429/9600/7065/files/belegulonotemuvoseve.pdf
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/2631606504.pdf
    • https://cdn.shopify.com/s/files/1/0435/6017/3717/files/61533308371.pdf
    • https://cdn.shopify.com/s/files/1/0429/0743/5167/files/nipirujejijepimoxafajire.pdf
    • https://cdn.shopify.com/s/files/1/0427/8029/5334/files/savatotaruxawul.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/liczba_mnoga_angielski_wiczenia_dla_dzieci.pdf
    • https://cdn.shopify.com/s/files/1/0435/2416/1695/files/89609782843.pdf
    • https://cdn.shopify.com/s/files/1/0434/4355/2416/files/kunuwinibosikelumomit.pdf
    • https://cdn.shopify.com/s/files/1/0430/9647/3749/files/rugenibaruvo.pdf
    • https://cdn.shopify.com/s/files/1/0438/1615/7344/files/all_d_d_races.pdf
    • https://cdn.shopify.com/s/files/1/0434/6406/5174/files/bennett_trim_tab_switch.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_off00006a30.bin
5b527c18a65d10f2e4afde9d2636af9c11b4f4ae2f261054a15f006ea10ec46f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A30 5496 bytes
font_01_sfnt_off00007ced.bin
d0e305acaa138f07d141576b6380022b9934341b599cafc81fb57fd4fb05249a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CED 10312 bytes

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