Malicious PDF — malware analysis report

Static analysis result for SHA-256 77e1e7f2d22d66bd…

MALICIOUS

PDF

100.2 KB Created: 2020-08-17 16:32:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 05dff461c63e595daf5f0de334913c9b SHA-1: 8c90cdccf7834b1499b492cf4ce6ab054c311c40 SHA-256: 77e1e7f2d22d66bd38f91c914f8a068bb94390e48b279625096fb4e8d11aab4c
162 Risk Score

Malware Insights

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

This PDF file contains numerous links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=bootstrap++icon+css'. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users to malicious infrastructure. The presence of many external PDF links further supports a link farm or redirection strategy.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=bootstrap++icon+css In PDF document text
    • http://files.jbaumgartel.com/uploads/1/3/0/7/130739095/tumuzuriju_dosimudevutezim_gixosofebasizu_saxemotetutu.pdfIn PDF document text
    • http://piwopiwu.jmintegratedmarketing.com/uploads/1/3/0/7/130775982/makiwojedepukinerase.pdfIn PDF document text
    • http://files.theksbphoto.com/uploads/1/3/0/8/130873820/2357027.pdfIn PDF document text
    • http://mimog.maudink.com/uploads/1/3/0/7/130776716/bokuvasetuluj.pdfIn PDF document text
    • http://www.typoland.com/http://www.typoland.com/designers/Lukasz_Dziedzic/CopyrightIn PDF document text
    • http://www.typoland.com/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.orgThisIn PDF document text
    • http://www.fontrix.comhttp://www.nhncorp.comIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1653/4690/files/nekobasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8790/5446/files/42948420749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0741/8274/files/alcatraz_tv_series.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46676539889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3476/2664/files/pusixebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4490/4855/files/tivivuzuzubinerajiruga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6917/6985/files/71619107247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8657/5771/files/ayub_khan_era_1958_to_1969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5753/7439/files/solidworks_composer_free_trial.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://scripts.sil.org/In PDF document text
    • http://scripts.sil.org/OFLAbyssinicaIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 9

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66F1 6740 bytes
SHA-256: 960be24e41903e2c9ee1a53646adac9b94dd6a5b6743d5e0f11d54c2ff8ab323
font_01_sfnt_off0000778d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x778D 6168 bytes
SHA-256: d841e6ee9fc5f8d88f1d94419f2a0f587508a927e8deb92e2b18ca34c352e48a
font_02_sfnt_off0000872c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x872C 4944 bytes
SHA-256: ac054462a23a8809c424800efd3beacf075d178a28af52b6d59451c7a3b55e6a
font_03_sfnt_off0000980a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x980A 26912 bytes
SHA-256: 3300f268e4e1f6e441dc9073c8b0066863dc1ba56e5e9ce4a96ad78ad18c716b
font_04_sfnt_off0000c6f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6F8 23064 bytes
SHA-256: fb95e105fb8951c1117ae08d079046f5b057876905c4871dbd4e528cc8f47315
font_05_sfnt_off00011147.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11147 1624 bytes
SHA-256: 64dc8fc5d82f8124bee96b54d9c2409d08ec346abe0875115db0a4d81423d47c
font_06_sfnt_off0001198d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1198D 13276 bytes
SHA-256: 1cf980009f2141720f304e97f705f72558e8c53e9d04f42702ce42b4e8ac00f1
font_07_sfnt_off0001440f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1440F 16744 bytes
SHA-256: f0b0ae2d13a5b3977d7445bd418d3dfd11dc3b7f5d41768ee5f5188793f4be58
font_08_sfnt_off00015b80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15B80 15608 bytes
SHA-256: cff2445a5d90bc150e3cdb2c80b0fee15cd0f1ce5e06ac676d0b57eb45bef125

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