Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb672b7bdd5ce4dd…

MALICIOUS

PDF

89.2 KB Created: 2020-08-23 01:06:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 58a499051792aa1577dff85af4a81a87 SHA-1: f63e974d4ab6bc795d7512eaae561bcdc57ab2bd SHA-256: fb672b7bdd5ce4dda7d5435bbda4ebb4218edf47fb8c63e827dc0701d1dfc43e
194 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 pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on shopify.com. The document body, though heavily obfuscated, contains the same malicious URL. The primary intent appears to be redirecting users to malicious infrastructure, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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.ru/pify?keyword=hollywood+movie+speak+khmer+free In PDF document text
    • http://lepeporo.urbanedenbeauty.co.uk/uploads/1/3/1/4/131413418/5711969.pdfIn PDF document text
    • http://files.channingbenjamin.com/uploads/1/3/1/8/131871558/virepinutes.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
    • http://smc.org.inhttp://smc.org.inIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9671/6952/files/lolesisipixivufemikud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7140/6234/files/22957120794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6706/4991/files/virtual_function_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7106/2684/files/minecraft_medieval_fortress_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7410/0127/files/frigidaire_5000_btu_air_conditioner_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/womosoravitixugefiwil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/kofulutosodoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4939/4080/files/temporary_internet_files_location_has_changed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/2451/5989/files/66563977005.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.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text
    • http://www.gnu.org/licenses/lgpl.htmlRegularDanhHongIn PDF document text
    • http://www.geocities.com/dnhhngIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 10

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006bb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB3 14140 bytes
SHA-256: 5c3782527b088610a5d85a07c168f86323dca6373f2a2620b1f5369ac9767bb8
font_01_sfnt_off000099c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99C3 5560 bytes
SHA-256: 2e7f5698cb53df8f5de8dd97146957677e0a98b637739059478b8cf9d24203a0
font_02_sfnt_off0000ac9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC9C 7340 bytes
SHA-256: 8c91e91df2f0ec744e923e8df979de700079d7d3aecb77777337e5045754f5dc
font_03_sfnt_off0000c423.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC423 2756 bytes
SHA-256: 52624895a4eadb7835eb9ef2a2b80599b286e622294c84fbd83ed78c14b406a4
font_04_sfnt_off0000cf16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF16 5028 bytes
SHA-256: d93379cace63e1a4bc02abcc509f764d4f8112460a1db9ebc2dac478fbaff1de
font_05_sfnt_off0000de83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE83 3904 bytes
SHA-256: 36ef47ba4f87bc2e3b02cbfe1eedcdf64b9d2179b240eddf0e81b47fe8818133
font_06_sfnt_off0000ed78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED78 7568 bytes
SHA-256: 5d302898de1a2e1f5c09152f4378f3908227f5a39904b07968592bc4f1e84836
font_07_sfnt_off000101ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101EA 11188 bytes
SHA-256: 624a1392eada157d53a84688059d0e1cf9678482c36637e582b250434ea9f853
font_08_sfnt_off000125a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125A3 18120 bytes
SHA-256: f11f775b34b0d7b26e0e1f3cef9c4c4e75fc8b780c7c2bbdaa1718536336acba
font_09_sfnt_off000141e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x141E1 4960 bytes
SHA-256: d15980b2ce0d60408e9683f77e6e0dacf70f7ffadf8b080639c1a0cc99b8d43b