Malicious PDF — malware analysis report

Static analysis result for SHA-256 32f75fa60ca8773c…

MALICIOUS

PDF

57.1 KB Created: 2020-08-06 05:29:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03e890bd61dc09d2b4f61c4299eac2c6 SHA-1: 6c757ddbd2338f87019d8f4d2b6e0652852f5ddf SHA-256: 32f75fa60ca8773c916d99799e7fe2b6aa1445e89bc45f8a23db6460d8166f67
150 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to a critical heuristic identifying it as a redirector link to known malicious infrastructure. It also contains a large number of external PDF links, characteristic of a link farm. The embedded URL 'https://ttraff.com/pify?keyword=bsc+magazine+pdf+jan+2020' is the primary indicator of malicious intent, likely serving as a lure or a redirector to a phishing or malware distribution site.

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=bsc+magazine+pdf+jan+2020
    • http://files.studio-knox.com/uploads/1/3/0/7/130738921/3eda0.pdf
    • http://files.farmingtonrestaurantweek.com/uploads/1/3/2/3/132303068/butob-luliniw.pdf
    • http://files.momentumptnp.com/uploads/1/3/2/6/132681851/lagirowej_gexaxuruguk.pdf
    • http://files.stfranciscatholic.org/uploads/1/3/1/4/131452733/lalazowatuvam_vajixatilu_darixafanetital.pdf
    • https://cdn.shopify.com/s/files/1/0434/5711/8374/files/probability_examples_and_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0433/0268/2789/files/numasomununetotufigone.pdf
    • https://cdn.shopify.com/s/files/1/0430/2841/4618/files/fiviratamizakiwojogob.pdf
    • https://cdn.shopify.com/s/files/1/0433/4632/9750/files/69249606246.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rerisorajomowuba.pdf
    • https://cdn.shopify.com/s/files/1/0433/8044/1238/files/smoke_devil_dungeon.pdf
    • https://cdn.shopify.com/s/files/1/0429/8237/5577/files/54163166400.pdf
    • https://cdn.shopify.com/s/files/1/0431/4877/1488/files/68445474763.pdf
    • https://cdn.shopify.com/s/files/1/0428/7509/3159/files/11917351234.pdf
    • https://cdn.shopify.com/s/files/1/0432/9173/8277/files/dizajuriv.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/tepoxam.pdf
    • https://cdn.shopify.com/s/files/1/0431/8052/3681/files/sesifaj.pdf
    • https://cdn.shopify.com/s/files/1/0429/8348/9690/files/characteristics_of_organized_crime.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8871/files/isabel_allende_libros_paula.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_off00009156.bin
2f3ad5f9c3c20cb906231709008d76540315e1d395c54b6398908ef83c5fad3f
pdf-font-stream PDF embedded font (sfnt) at offset 0x9156 5796 bytes
font_01_sfnt_off0000a51a.bin
58c2e39926499fb4ae15459d70217d67799776f2a73f90936cf5857d19164c59
pdf-font-stream PDF embedded font (sfnt) at offset 0xA51A 11204 bytes
font_02_sfnt_off0000cb6a.bin
ee8afa51e50492bdf4d25b6b01818d2021856a0eb5271b70f188e6d094f25891
pdf-font-stream PDF embedded font (sfnt) at offset 0xCB6A 2832 bytes