Malicious PDF — malware analysis report

Static analysis result for SHA-256 bae105b828467280…

MALICIOUS

PDF

147.4 KB Created: 2020-09-06 11:15:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 1926dea7fe7693f5e4b6844d25151150 SHA-1: 0d62dd5c4d31714248eeccf861280dddd27d36f7 SHA-256: bae105b828467280c291123e3920752e6360826633e46e66f0b3099160615ca4
94 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.me, which is likely used to host or redirect to a malicious payload. The embedded URL is presented in a way that suggests it is a legitimate search result, aiming to trick the user into clicking it. No scripts were extracted, but the ML classifier and the malicious redirector link strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9548

Heuristics 3

  • 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.
  • 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.me/wix?keyword=odisha+map+pdf++in+english In 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.indictrans.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8223/4521/files/legujubetufibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85286147205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/0247/7982/files/parokoronizudivimaganak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2936/3878/files/bad_romance_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6326/0822/files/ferixufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kaxepetumikikexozifaxu.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/bfd504_b1c97fab40834b5a9a59b16900badf31.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0df15e_74b35c9862ab4cf6a22fd131ff958392.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/50de67_1c1f749d61c74299809255bab27c9d7a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/2b3f46_4a941a7447de49218699bb5fc4dd4179.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e49726_ed2f01ce4e924221a76ba789beb3e8ee.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_95e3fd9b63754def9f9f155dcc2c4c7c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/ed2d23_3f6808a7bac14a7495cdb6a32ad1292a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/be5703_23fea3d59e51492388ae24da8413cf79.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

Extracted artifacts 11

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013383.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13383 20780 bytes
SHA-256: 1758f45495aad35c59b276537fc89e0fed7e47334f31e4b070d8220be6d68ea9
font_01_sfnt_off0001748a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1748A 5384 bytes
SHA-256: 2a9b3b9ef51477396f01ef14631ac76d5b01adcde8a672f4f21b8bbae5bce193
font_02_sfnt_off000186b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x186B2 6932 bytes
SHA-256: dffab42839c26e8f6a194092d296565e414c2e0d0251f95fc568ad450318f163
font_03_sfnt_off00019d58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19D58 3748 bytes
SHA-256: 26fd5956008dc078c56e4ce67d5b6a4800aa6c7306e8c76ccd5bc805e9bd5aaa
font_04_sfnt_off0001abc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1ABC2 2108 bytes
SHA-256: d117309382da938f7dffedc42f90dd4217b4d540d75629b80669d975ecbc171e
font_05_sfnt_off0001b597.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B597 3204 bytes
SHA-256: c10813415427fe4dbb829d72a33c4adbc649ebc07de0966d8e8fe98bfc2b6d89
font_06_sfnt_off0001c2ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C2BA 4336 bytes
SHA-256: 87016e8933cc862d1d188edfbee698abcff8178ed3d6b510b61737ee02f60284
font_07_sfnt_off0001d05b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D05B 15956 bytes
SHA-256: f536136860f122069375c3971f662683f5a6229749474153d8006ad93e257c7a
font_08_sfnt_off000202ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x202AD 18136 bytes
SHA-256: d1741457e72e05094589f7c9203d3310e6eb2dc15a5a523159660905b81b95c0
font_09_sfnt_off00021ef6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21EF6 4268 bytes
SHA-256: bacb087f132841b8fb1854cd926dacac08835376bdfaa769bdadf00909066f34
font_10_sfnt_off00022f32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22F32 3040 bytes
SHA-256: be67b8e2ed998e9692099a42bbf00ccea45bb1356aeae18fcb180cb2925440d9

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