Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a020d7c85ae6e29…

MALICIOUS

PDF

43.8 KB Created: 2020-08-21 17:24:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2695051e451181635a2cf9815a752fdf SHA-1: 4615d345e964eb96d3081a0cd22bdf9c1f269960 SHA-256: 1a020d7c85ae6e29d53713eb1600bf73234ba1930d361a679ea2c3574bc56132
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though partially corrupted, contains text related to 'online converter pdf 2 jpg' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a 'download button' heuristic further supports this. The primary attack pattern involves redirecting the user to malicious infrastructure via a deceptive link.

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=online+converter+pdf+2+jpg
    • http://moremepi.redneckinnovation.com/uploads/1/3/2/6/132682883/pugalig-vivuluvo-tufajasimufu-fetalutep.pdf
    • http://files.vapmedia.com/uploads/1/3/1/8/131872273/pexepejelitik.pdf
    • http://files.petsingoodhealth.com/uploads/1/3/2/3/132302995/ef6be401b.pdf
    • http://files.sarahscustomtumblers.com/uploads/1/3/1/4/131483108/8d1ca277fec9d.pdf
    • https://cdn.shopify.com/s/files/1/0435/1338/1028/files/fozujugexaka.pdf
    • https://cdn.shopify.com/s/files/1/0432/2613/6743/files/itunes_terbaru_untuk_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0431/1446/3394/files/xodupuxulukilomosafur.pdf
    • https://cdn.shopify.com/s/files/1/0435/0397/6614/files/16078763859.pdf
    • https://cdn.shopify.com/s/files/1/0448/4985/6669/files/acido_basico.pdf
    • https://cdn.shopify.com/s/files/1/0428/5490/8071/files/86864932431.pdf
    • https://cdn.shopify.com/s/files/1/0429/5314/6517/files/comparative_grammar_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0435/1783/7480/files/67294136705.pdf
    • https://cdn.shopify.com/s/files/1/0438/4423/9510/files/47039691456.pdf
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/room_service_menu_jackson_ms.pdf
    • https://cdn.shopify.com/s/files/1/0431/8203/1007/files/47409825429.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_off00006019.bin
c1b6daeae970050f2b458ffc257e95e8f95e4ab5543d0e21307f0c24e88e1d29
pdf-font-stream PDF embedded font (sfnt) at offset 0x6019 5020 bytes
font_01_sfnt_off0000714f.bin
0d059d3004eb17147a39e0a806441ee2face6046d6febdc455ad2000d30149fe
pdf-font-stream PDF embedded font (sfnt) at offset 0x714F 10180 bytes
font_02_sfnt_off0000943c.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x943C 4324 bytes