Malicious PDF — malware analysis report

Static analysis result for SHA-256 02e6016c4015d458…

MALICIOUS

PDF

58.9 KB Created: 2020-08-31 07:58:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 825ae86c6736a519b0622079ddd16895 SHA-1: 3cdc37914d766a57720485b730dc226f714b53c4 SHA-256: 02e6016c4015d458a2d1cab5ef2869ce569695301fd2b526ff9fe34bd10bc3ec
154 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, including one pointing to a known malicious redirector at 'ttraff.com'. This suggests a phishing or content-luring attempt, likely to distribute further malware or lead users to malicious websites. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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/wix?keyword=download+lagu+naruto+shippuden+opening+16+full+mp3
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0438/3621/1357/files/49519022092.pdf
    • https://cdn.shopify.com/s/files/1/0440/9799/4904/files/jinedinenewotofidugipajem.pdf
    • https://cdn.shopify.com/s/files/1/0433/0458/3318/files/zabalamozudejife.pdf
    • https://cdn.shopify.com/s/files/1/0431/4044/8407/files/beyblade_burst_evolution_tamil_song.pdf
    • https://static.usrfiles.com/ugd/b8c837_80d20ce9cf1a4bcd8874c8c13a56331b.pdf
    • https://static.usrfiles.com/ugd/ef7b09_b96f10f77da24bbea7d9ffe5a0423c7c.pdf
    • https://static.usrfiles.com/ugd/b8c837_ea145b9d95fa4104aaa97b7668ab9385.pdf
    • https://static.usrfiles.com/ugd/b8c837_a760784ec44c4ababad79a874c8bf760.pdf
    • https://static.usrfiles.com/ugd/921909_803beea8459c450e917497fb9278379a.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/aliphatic_and_aromatic_hydrocarbons_ncert.pdf
    • https://cdn.shopify.com/s/files/1/0438/4748/3552/files/pexevokevotanijuli.pdf
    • https://cdn.shopify.com/s/files/1/0432/9553/9368/files/atkins_physical_chemistry_book.pdf
    • https://cdn.shopify.com/s/files/1/0432/2105/7700/files/76481504148.pdf
    • https://cdn.shopify.com/s/files/1/0430/9850/5369/files/wipatetuzasizedonomidu.pdf
    • https://cdn.shopify.com/s/files/1/0435/0178/1156/files/redis_on_mac.pdf
    • https://cdn.shopify.com/s/files/1/0438/4522/2550/files/61273203742.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006724.bin
69731e884ba2d912f3102b2f21296170037d3d10608792fa3734912b18448189		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6724 9484 bytes
font_01_sfnt_off00008682.bin
f2ecebf715aca7660a1d8c434ac2f61f8d49d7deb53f5b63c4aff60cbc1a2018		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8682 5916 bytes
font_02_sfnt_off00009a97.bin
d8d61edd59d3acbdfd67a269bfeb7f60e27431e42d963df091d0f41a0ab375d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A97 14948 bytes
font_03_sfnt_off0000c8fe.bin
6154b7c3b54e2d409673431209b2e35fc41372fd028a3ec5eb5507d8fa176a79		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC8FE 16064 bytes

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