Malicious PDF — malware analysis report

Static analysis result for SHA-256 2745a14c7130cc62…

MALICIOUS

PDF

48.2 KB Created: 2020-08-05 05:03:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a77400651fb0f0acb1a575e804463e3 SHA-1: 7b3283faf30b42746c79f3821dd73f48d5cea742 SHA-256: 2745a14c7130cc62da8e2a7e190980f53e4cff5c0186fd4e64cc0f7e7f1ec374
120 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to external resources, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'payroll management system database project pdf' and the malicious URL. This suggests a phishing or scam attempt to redirect users to malicious content.

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.cc/pify?keyword=payroll+management+system+database+project+pdf
    • http://files.personalspaceproject.com/uploads/1/3/2/7/132740343/piwepapefa-kavijabojexopi-fuwuwumewa.pdf
    • http://files.keithwilsonmedia.com/uploads/1/3/1/3/131379382/nuxopajodumo_wozote_donifuk.pdf
    • http://files.disadevices.com/uploads/1/3/1/3/131380666/2951176.pdf
    • https://cdn.shopify.com/s/files/1/0436/2846/2233/files/brunner_suddarth_medical_surgical_nursing.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gidawibozifuniji.pdf
    • https://cdn.shopify.com/s/files/1/0427/3415/7991/files/webatawo.pdf
    • https://cdn.shopify.com/s/files/1/0436/4071/7462/files/49227050784.pdf
    • https://cdn.shopify.com/s/files/1/0433/8342/3128/files/83990383214.pdf
    • https://cdn.shopify.com/s/files/1/0440/4844/9701/files/69930042603.pdf
    • https://cdn.shopify.com/s/files/1/0430/4610/9345/files/16685444298.pdf
    • https://cdn.shopify.com/s/files/1/0432/1184/9890/files/lomifovogipilev.pdf
    • https://cdn.shopify.com/s/files/1/0437/3587/5749/files/49976525790.pdf
    • https://cdn.shopify.com/s/files/1/0431/1128/4885/files/memubixoxoferefeserebod.pdf
    • https://cdn.shopify.com/s/files/1/0429/0235/6127/files/nupelewabaxileludasep.pdf
    • https://cdn.shopify.com/s/files/1/0430/6337/8081/files/16378614891.pdf
    • https://cdn.shopify.com/s/files/1/0430/7730/4484/files/39336815964.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_off00007bcf.bin
a1c2e786735448746a884459aa144d79036f6c82fa37700c50ab0ddd70e11b19
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BCF 5792 bytes
font_01_sfnt_off00008f82.bin
7433b13356e09e928f78b127f85175dae369e253ac4490d3eded61cc9e500a50
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F82 10456 bytes