Malicious PDF — malware analysis report

Static analysis result for SHA-256 658ff0c7edf87bfc…

MALICIOUS

PDF

73.6 KB Created: 2020-08-14 00:17:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cb34a302a6b3b080578b028626a14c6b SHA-1: f435a2fd9fcbd05c9fe5ebe2a6d5f48035c3fc7d SHA-256: 658ff0c7edf87bfc21f7044a12a64af4a606c55619dc4b9ef0a1719182956167
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on domains associated with SEO spam and redirector infrastructure. The primary malicious link, 'https://ttraff.com/pify?keyword=chargesheet+under+section+173+crpc+pdf', is identified as a malicious redirector. This suggests the document is designed to trick users into clicking the link, potentially leading to a phishing page or malware download.

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.com/pify?keyword=chargesheet+under+section+173+crpc+pdf In PDF document text
    • http://files.kmstudioart.com/uploads/1/3/0/9/130969183/9188029.pdfIn PDF document text
    • http://files.scrollrefrigeration.com/uploads/1/3/1/3/131382590/5746523.pdfIn PDF document text
    • http://files.grayden.info/uploads/1/3/1/3/131379085/somobog-goxalex-kuwipon-nunudumijopele.pdfIn PDF document text
    • http://xevudo.thescarabexperiment.org/uploads/1/3/1/4/131407089/fominef.pdfIn PDF document text
    • http://digige.alzeen.com/uploads/1/3/0/9/130969204/figapevepatagovuza.pdfIn PDF document text
    • http://www.opentle.orgIn 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/1/0428/9026/4742/files/lelozogomoxazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0462/4021/files/25890776316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4818/9603/files/fosuzaruxozinidubog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8830/6586/files/pulse_secure_vpn_for_windows.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7849/2062/files/45388366577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0780/2518/files/60262314541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1149/5320/files/23777201530.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3518/1724/files/86604224695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0796/5345/files/radegawej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0795/0495/files/geguzatez.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
🗂 Part of campaign: kmstudioart.com 4 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000cfac.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xCFAC 12788 bytes
SHA-256: 15b168a56f787489ac0911f6c6a3f417de9821d10d5d58d0a98a561aa5f569b3
font_00_sfnt_off0000bcac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCAC 5584 bytes
SHA-256: bc92bf26198c6e7a090cbcaa15258e7fea4feb22a578b58bb4f3a7353d57d39f
font_02_sfnt_off0000f3b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B4 11388 bytes
SHA-256: 8f5a9b5e54d8b54d0569c3a637323267981722c9dd61c5170dd7a0c3ce8e04f4