Malicious PDF — malware analysis report

Static analysis result for SHA-256 0844d0acd76ecc5a…

MALICIOUS

PDF

100.5 KB Created: 2020-08-31 08:20:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9e4af57c132f4f6df097574454bade4e SHA-1: fc06bbae2a81591eab9accbce3eb592df6c2c7d0 SHA-256: 0844d0acd76ecc5ace21467d8ea390a9850b4bb8cfd5af6644dde7a78d162ace
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) disguised as search results for popular media. This suggests a phishing or scam attempt to drive traffic to potentially malicious sites. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the embedded URLs and the PDF structure indicate a lure for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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/wix?keyword=lost+season+1+episode+1+english+subtitles In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn 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://www.indictrans.orgIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9390/0968/files/introduction_to_automata_theory_languages_and_computation_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2987/2292/files/protective_relays.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5410/3713/files/79362296225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7348/6496/files/jamestown_colony_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4116/9303/files/itr_2_assessment_year_2018-_19.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69296453687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1394/7048/files/lowejoterekavaxilosadaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/60527157158.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1336/6182/files/gutachten_jura_zeitform.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6117/4684/files/whirlpool_oven_accubake_system_self_cleaning_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4514/3207/files/pilonepoxefenobusuvepap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9495/0556/files/luvoxoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3712/9895/files/inches_to_mm_conversion_chart.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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://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://sinhala.sourceforge.net/In PDF document text
    • http://sinhala.cvs.sourceforge.net/viewvc/*checkout*/sinhala/sinhala/fonts/CREDITSIn PDF document text
    • http://www.gnu.org/licenses/gpl-2.0.htmlIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 15

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_016_off00014f82.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x14F82 18892 bytes
SHA-256: 41106fe9a07ceeb1833557e0ab2cfbd1aaa01bb8b874b05d5e7cc5f1a8674fa4
font_00_sfnt_off000075e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E6 7916 bytes
SHA-256: e59037b55eb65fa6455cf1c6287e33a9d16be46809afb7af2e33fa14b570a7d3
font_01_sfnt_off00008a46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A46 4032 bytes
SHA-256: 1d890cbc49c86b194b6bea92bfd272c23f59aa3734dae7befebffe896f6f634c
font_02_sfnt_off000098b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98B6 5256 bytes
SHA-256: 4894882b773af7cc949005ac286608829de4a7c02f72ef038b4aa7a943b8f7a1
font_03_sfnt_off0000aa8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA8C 2656 bytes
SHA-256: dbaab8dcf32bfe64cb008f34eb54f5316f62236e8dffe3de49b44225404383a5
font_04_sfnt_off0000b58e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB58E 4140 bytes
SHA-256: 119132d4d86df12b64aacef50f1aeac69cc60fdd8dbe27b6e2ceb22654f0acbc
font_05_sfnt_off0000c2ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2AB 3048 bytes
SHA-256: 1b68eb0745f369bd9f805b89718582bd6ebaf917deeaaae5095027b3f32dc7b8
font_06_sfnt_off0000ceb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEB8 2328 bytes
SHA-256: c42118b51b061dffbc196cd4866a2cf76d9f31ae9d0a8f6c06e6ad224a677b24
font_07_sfnt_off0000d96f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD96F 2604 bytes
SHA-256: d07a9fdf75b1e191e7a1ea25e2941b9f689ff98e7e435169aef8b5fb7be41b17
font_08_sfnt_off0000e447.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE447 3840 bytes
SHA-256: 5b8e8035f8940535bfb5f3d78de7d5c45dbc51c905faa5d9788b8fc152e96872
font_09_sfnt_off0000f256.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF256 2108 bytes
SHA-256: 806d12f4c18e044784d20764d58024893796e88f204c306662924b3e907cbcac
font_10_sfnt_off0000fc2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC2F 4336 bytes
SHA-256: 87016e8933cc862d1d188edfbee698abcff8178ed3d6b510b61737ee02f60284
font_11_sfnt_off000109cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109CF 6148 bytes
SHA-256: be38186c9256ba0e64b07d34cca2e63b176d3ffd182ae4667a642b503e748fe0
font_12_sfnt_off000119b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119B9 17636 bytes
SHA-256: 6f004a60fb4cde98711cc885aa2c7e5c7de4ae51b57ca85dddd5b05dcad218ca
font_14_sfnt_off00016ede.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16EDE 3536 bytes
SHA-256: ecf51c2dbb9281b20c5dc3daf9ad1c9b9cc7ec56331f29427b924fb34bf6c063

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