Malicious PDF — malware analysis report

Static analysis result for SHA-256 31ad2e0e48687607…

MALICIOUS

PDF

43.2 KB Created: 2020-08-13 21:35:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6945d1e245999f8dc99eba64e47c73e9 SHA-1: 41bc8e18e65e448f6bdd585bb7b85146855a9c68 SHA-256: 31ad2e0e4868760759b8fc2aeb79b65fe3fc2bf4a9dea631179fc454541f6f45
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=new+bhojpuri+arkestra+video+songs'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external PDF links, with the primary one being 'https://cdn.shopify.com/s/files/1/0432/9088/6312/files/42981200387.pdf'. The document body, though partially corrupted, contains the redirector URL and appears to be a lure related to video songs.

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=new+bhojpuri+arkestra+video+songs
    • http://files.albertaorff.ca/uploads/1/3/1/0/131069860/patokaretel.pdf
    • http://files.promanchesterdigitalmarketing.co.uk/uploads/1/3/1/4/131437308/dd5b2c.pdf
    • http://files.stepnoutaussies.com/uploads/1/3/0/7/130738628/4326030.pdf
    • http://files.bradleypackets.com/uploads/1/3/2/6/132695492/3073980.pdf
    • http://files.scottyanco.com/uploads/1/3/2/3/132302942/5949817.pdf
    • https://cdn.shopify.com/s/files/1/0432/9088/6312/files/42981200387.pdf
    • https://cdn.shopify.com/s/files/1/0440/5107/1126/files/benowasuwitowivedaperenu.pdf
    • https://cdn.shopify.com/s/files/1/0437/7654/0834/files/2199778152.pdf
    • https://cdn.shopify.com/s/files/1/0430/3018/4098/files/nenojajuratukole.pdf
    • https://cdn.shopify.com/s/files/1/0431/8547/1656/files/muxamabetuwebadupe.pdf
    • https://cdn.shopify.com/s/files/1/0434/7920/4006/files/pdf_budismo_zen_y_psicoanalisis.pdf
    • https://cdn.shopify.com/s/files/1/0441/3331/8808/files/serazonojobukajotuxawik.pdf
    • https://cdn.shopify.com/s/files/1/0431/7233/1675/files/national_interest_theory.pdf
    • https://cdn.shopify.com/s/files/1/0433/1359/4526/files/xuzofijitokodiwunovuture.pdf
    • https://cdn.shopify.com/s/files/1/0431/8085/1364/files/41006520215.pdf
    • https://cdn.shopify.com/s/files/1/0433/1945/9998/files/putting_on_sunglasses_unicode.pdf
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/josafovizowuwazat.pdf
    • https://cdn.shopify.com/s/files/1/0448/1361/5264/files/calories_burned_per_exercise_chart.pdf
    • https://cdn.shopify.com/s/files/1/0437/1637/8773/files/sebaraxojegilegebupuwidul.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_off00005d59.bin
6b764bad27cd54a79e515681f1b4731494e3802907f71f0de93273e6071fc2fe
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D59 5592 bytes
font_01_sfnt_off0000706d.bin
feccecb3d15dc210caaa19f9d1e6e222be8421674eaf9fd76d200d00afcdf9f4
pdf-font-stream PDF embedded font (sfnt) at offset 0x706D 10316 bytes
font_02_sfnt_off0000939e.bin
cec545841cabda43e4a4756a2eb0189f22bc1a372819ef10d291fdb63fcdf93b
pdf-font-stream PDF embedded font (sfnt) at offset 0x939E 2860 bytes