Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ec2778ad91a2f62…

MALICIOUS

PDF

52.2 KB Created: 2020-08-16 21:30:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 79f69f6382e5c47815f5422c4363a69b SHA-1: c85cd37cc76564b820134138b536cacd7ce5908d SHA-256: 6ec2778ad91a2f6226d81a1ab2fbd52d6249e9f3f6eedadd2c9a1aab6e752eb8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link disguised as an 'Mgs university bikaner online exam form' which redirects to a malicious infrastructure. This is further supported by heuristics indicating a malicious redirector and a link farm, suggesting a phishing or malware distribution attempt. The embedded URLs and the document's structure point towards a social engineering tactic to trick users into clicking malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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://ttraff.cc/pify?keyword=mgs+university+bikaner+online+exam+form In PDF document text
    • http://files.my-pleiadian-this-n-that.com/uploads/1/3/1/4/131453111/7f9cd73.pdfIn PDF document text
    • http://files.taraloveperry.com/uploads/1/3/0/7/130776338/tawosebofezum.pdfIn PDF document text
    • http://gatajize.euphonymagazine.org/uploads/1/3/1/0/131070374/tupixegofonum_pazuwagaj_vigibefid.pdfIn PDF document text
    • http://files.bellehale.com/uploads/1/3/0/7/130775387/jifedevijilo.pdfIn PDF document text
    • http://gumok.sarahmansfieldphotography.com/uploads/1/3/1/8/131871825/0abcc6d9667c2e9.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5456/3477/files/riterejejozikodedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4412/3303/files/arrest_search_and_investigation_in_north_carolina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1980/4567/files/forensic_chemistry_suzanne_bell.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nemevisofopanufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9435/1778/files/8308942338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2021/4681/files/3719513759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/8976833364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6420/5216/files/tuwusurawerolupexanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3431/9776/files/bics_training_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0685/3269/files/61629328097.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000a0f5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA0F5 11388 bytes
SHA-256: 57ba16bf8c4ec1b06976cb94b9927e54b003a3254c145157f5990c1dae2c9991
font_00_sfnt_off00006b09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B09 5528 bytes
SHA-256: d6a085c645d444f457f93a20825136862aea908dbf3f5458dd54edea2e4f7f09
font_01_sfnt_off00007dd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD9 10176 bytes
SHA-256: de42839d8c6580db76edadc9b4ff9229a99c4bf3003c06544d8f4d1697735d16