Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d7d02a5fb9ee452…

MALICIOUS

PDF

61.8 KB Created: 2020-10-15 01:49:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 801bcc719e6280aac92fb28dbd9a970f SHA-1: fe076de5973289e22a6fe17edea113f281a39656 SHA-256: 2d7d02a5fb9ee452aa1c1df75b0dce1335329c2f1b8d52cc0efbb4bfcf347224
202 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://gettraff.ru/123?keyword=photoscape+x+pro+apk+download In PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/18ad995.pdfIn PDF document text
    • https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/xexojosaxexuwa.pdfIn PDF document text
    • https://jamuseramomuf.weebly.com/uploads/1/3/1/8/131871426/5848962.pdfIn PDF document text
    • https://site-1043262.mozfiles.com/files/1043262/5825176087.pdfIn PDF document text
    • https://site-1038578.mozfiles.com/files/1038578/53760540124.pdfIn PDF document text
    • https://site-1043808.mozfiles.com/files/1043808/93210261129.pdfIn PDF document text
    • https://site-1042838.mozfiles.com/files/1042838/kaxevi.pdfIn PDF document text
    • https://site-1042185.mozfiles.com/files/1042185/xinavebofifudumez.pdfIn PDF document text
    • https://site-1036807.mozfiles.com/files/1036807/63876895181.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7981/8661/files/samsung_galaxy_s4_active_unlocked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8546/3713/files/purple_afghan_kush_seeds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/1290/5896/files/reropumobufoxor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/9082/5382/files/83369786577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/7622/2621/files/4178478649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8211/1390/files/tobalagiwitaxuwolevos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58e52790-885e-44c3-886a-5fb5de88d8f9/41561636429.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20d85f53-2cbc-487c-9a6f-9ecf26c909ec/52150095708.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c82bb269-56d5-4cca-bfa6-b361dd5e1b9f/tinodojaxubujerajot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ecac93d-03f9-4895-9bb1-cb723a25b47f/94235311228.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75277211-49d1-4447-8ba2-c9ea85d1ceb2/pageguvotipu.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7253 5588 bytes
SHA-256: 9923127b1e0125bb571f7c29d2e74518f67ef3f6163990ee1cc9a538e8267a38
font_01_sfnt_off000085db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85DB 5384 bytes
SHA-256: af524cc2b022d81c32cb30470e72adac909e0ae461344045cd2e03e8d5bc3d8e
font_02_sfnt_off00009828.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9828 13048 bytes
SHA-256: d4767f0960008db87814713f945c8d45d3e2dac92376b296d99908f6e0939519
font_03_sfnt_off0000bc1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC1E 14268 bytes
SHA-256: 6cd9fefbc935eae4ec560335a3ad3c073f563f5e7af82612abbbbe8e682b9fc1