Malicious PDF — malware analysis report

Static analysis result for SHA-256 9499ddfb9282fd28…

MALICIOUS

PDF

93.3 KB Created: 2020-08-11 07:17:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: ba265a226222eeb9bd068d2b40e2bf32 SHA-1: 207b5d075a144f890c4bf299c36853966974d1ff SHA-256: 9499ddfb9282fd28d8704a179e9f4b493d07e594d0d9d658a7c4a78a3398701d
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and appears to be a lure for downloading a 'newspaper'. This pattern suggests a phishing or malware distribution attempt, likely initiated via spearphishing. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

Heuristics 6

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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=hindu+english+newspaper+today+pdf In PDF document text
    • http://files.maxrhodesarts.com/uploads/1/3/1/3/131383575/7280599.pdfIn PDF document text
    • http://files.stmatthewspokane.org/uploads/1/3/1/3/131397996/6c9cc0e.pdfIn PDF document text
    • http://files.kenjorgensendesigns.com/uploads/1/3/0/7/130739678/ffde91bebd61e6.pdfIn PDF document text
    • http://files.funelteacher.com/uploads/1/3/1/4/131482968/sizuloka_botavefefugoro_fejowelepibide_rajozojamifibig.pdfIn 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.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0515/7284/files/vorarepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2366/2236/files/algebraic_topology_allen_hatcher.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0195/3952/files/41875124528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5501/4298/files/etiologia_de_la_neumonia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1239/6968/files/65650499876.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0145/4500/files/all_mathematical_symbols_with_name.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6697/2577/files/rexesutaketusixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2338/2174/files/academic_writing_lecture_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4098/7543/files/poverty_alleviation_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7938/5766/files/70593746559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6533/5190/files/lucy_australopithecus_afarensis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1814/1347/files/29592058479.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://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 13

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009556.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9556 5340 bytes
SHA-256: a214e9b8106025d1d5ffbe3dede67a805dab4d754d2647c39b29b0d3e13f0766
font_01_sfnt_off0000a77f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA77F 2656 bytes
SHA-256: c206ac4eca120f096112d408dff6b33a2f721090936d80486df636e1cd240fde
font_02_sfnt_off0000b283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB283 4540 bytes
SHA-256: b98cb45cbf9393f7484e45c1488e583b58da534a6e8b0650b47393f6f9550aa8
font_03_sfnt_off0000c127.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC127 3048 bytes
SHA-256: 4bb619f7e4c8d10c6650d66271e6db770d7def95493d885be3efe54e7c100c22
font_04_sfnt_off0000cd35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD35 2328 bytes
SHA-256: 3702365b3034b9d7945da23b991b5e2ac3f8bb06d1ba3be7e5ba1b5d8dd48c9f
font_05_sfnt_off0000d7ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7EE 2604 bytes
SHA-256: 7f3a1ef136f36ba68bc36e5bcd31de243dce7f4b60e01c4bc40f508baeb48ca0
font_06_sfnt_off0000e307.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE307 2108 bytes
SHA-256: e66bd646ff29f48b94a898642357a1d5295b77faffa0bd70eb77acb4aebc9a97
font_07_sfnt_off0000ecdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECDC 4336 bytes
SHA-256: 87016e8933cc862d1d188edfbee698abcff8178ed3d6b510b61737ee02f60284
font_08_sfnt_off0000fa7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA7D 13476 bytes
SHA-256: 743dab768c45d308494c8f2e731f8bd4997ac9f0e8c2cde71b53df6b324649e7
font_09_sfnt_off00012471.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12471 16364 bytes
SHA-256: de5c7ed3f16be387c0962559da2342044f09b04d2ca5c65987e2e5d33df107e6
font_10_sfnt_off00013a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A85 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
font_11_sfnt_off00014890.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14890 4056 bytes
SHA-256: a5090754c6bd7a632434a62389297f701f7b59f7ea3a4856de585dec71e0f9c9
font_12_sfnt_off00015827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15827 2608 bytes
SHA-256: c4869f4910101e9de114603d80c87e7465cc14a3edf423f39a6ef78b10429b6f

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