Malicious PDF — malware analysis report

Static analysis result for SHA-256 adf4558c8344a239…

MALICIOUS

PDF

44.7 KB Created: 2020-08-05 00:01:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1b42b342ee4b729fa4eb51084e297b9c SHA-1: 8a1d4ab69890415b1c589c1ce6a6bf3bea37c2e1 SHA-256: adf4558c8344a2390c951166713399147380ef02e089346e61b046fda8f6ce29
128 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, which points to ttraff.com. This URL is presented within the document body, disguised as a download button. The document also contains a large number of external PDF links, many hosted on Shopify, which is indicative of a link farm. The primary malicious IOC is the ttraff.com redirector URL.

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.com/pify?keyword=automatic+intelligent+plant+watering+system+using+arduino+pdf
    • http://files.reikifortheplanet.com/uploads/1/3/2/3/132302815/5645773.pdf
    • http://files.knowyourbusinessplans.com/uploads/1/3/1/8/131858592/8523756.pdf
    • http://files.videoheads.co.uk/uploads/1/3/2/6/132681812/jigigumudiwok.pdf
    • http://files.manestreethaircompany.com/uploads/1/3/1/4/131409274/b41fbfe.pdf
    • http://files.danielemonico.com/uploads/1/3/0/8/130813694/d668a82bfc5b016.pdf
    • https://cdn.shopify.com/s/files/1/0431/3900/6632/files/jojireravin.pdf
    • https://cdn.shopify.com/s/files/1/0431/2412/9952/files/list_of_fake_email_addresses.pdf
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/ps3_controller_mac_sierra.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73768917897.pdf
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/24477676048.pdf
    • https://cdn.shopify.com/s/files/1/0429/1588/9305/files/nawimimoxiboriri.pdf
    • https://cdn.shopify.com/s/files/1/0433/0546/8068/files/92878944316.pdf
    • https://cdn.shopify.com/s/files/1/0434/1317/6469/files/zutavexuzevotaxe.pdf
    • https://cdn.shopify.com/s/files/1/0431/5820/8672/files/world_civilizations_6th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0429/5704/5913/files/safabumijobepo.pdf
    • https://cdn.shopify.com/s/files/1/0434/3395/1399/files/betig.pdf
    • https://cdn.shopify.com/s/files/1/0430/4017/8333/files/brown_add_scales.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_off00006f19.bin
eea1489b1b10b8b42f3e797aa018791472374aa25f8305b17a7e714c26cdf14c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F19 5660 bytes
font_01_sfnt_off00008255.bin
7945c3c4438dd607b388840d8592c87166b8f9ade6023583996d5a720f6f0242
pdf-font-stream PDF embedded font (sfnt) at offset 0x8255 10216 bytes