Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ec36f61c033db36…

MALICIOUS

PDF

58.3 KB Created: 2020-08-18 21:16:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67145f4e1873e5aa1c3eeca21ef4cc55 SHA-1: faa254a09a7258a16f436bffb768711e753dbce1 SHA-256: 9ec36f61c033db36c3082c48faaf509e21d2309af79f2aa2b4c0f9f68fba9797
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=awadhesh+premi+bhojpuri+song+dj'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links, including one to 'https://cdn.shopify.com/s/files/1/0432/3885/0719/files/hearthstone_open_all_packs.pdf'. The document body, though heavily obfuscated, contains the same malicious URL. The primary attack vector appears to be social engineering through a deceptive link.

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.
  • 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.
  • 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=awadhesh+premi+bhojpuri+song+dj
    • http://files.manuluwrites.com/uploads/1/3/1/8/131856170/3312738.pdf
    • http://kelep.kenaisatphone.com/uploads/1/3/1/0/131070450/4a90b.pdf
    • http://gowol.neurologysymposium.com/uploads/1/3/1/6/131607305/mepilo-tuzeluninisab-luzibebiwiboj-buzarajapasapuw.pdf
    • http://bibunil.mrbobsullivan.com/uploads/1/3/1/3/131384429/662ee76183.pdf
    • https://cdn.shopify.com/s/files/1/0432/3885/0719/files/hearthstone_open_all_packs.pdf
    • https://cdn.shopify.com/s/files/1/0427/8734/0454/files/tevutinutijukigimixated.pdf
    • https://cdn.shopify.com/s/files/1/0429/4947/6518/files/71791879672.pdf
    • https://cdn.shopify.com/s/files/1/0437/0294/3909/files/vubapiguzamivevu.pdf
    • https://cdn.shopify.com/s/files/1/0449/7191/7471/files/blessed_assurance_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0439/9320/2846/files/miopia_astigmatismo_hipermetropia.pdf
    • https://cdn.shopify.com/s/files/1/0439/1872/1192/files/kadaxaworenuwezero.pdf
    • https://cdn.shopify.com/s/files/1/0433/0084/7780/files/arbitraje_internacional.pdf
    • https://cdn.shopify.com/s/files/1/0438/7956/3432/files/flash_share_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0449/2309/3147/files/college_physics_8th_edition_solutions_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/9932/4580/files/64195945428.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/

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000058b5.bin
c373dec9868424bb2f492442de1e8005fb1854aa722632f01faa330b5399be7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58B5 5636 bytes
font_01_sfnt_off00006bc1.bin
68503592a9b13d04c66d91ddf83a4f791ee3d30ad04418e07f32f6de173285b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC1 2424 bytes
font_02_sfnt_off00007543.bin
2b3c80c592585e5a7dd47d99644a4b44a0c94b06c6cc8303384072e3b05b6d9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7543 14948 bytes
font_03_sfnt_off0000a3ca.bin
7ec41ace99873c983950e7db562a03f8d278ffc788b97e073c4aa8e277506f1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3CA 18888 bytes
font_04_sfnt_off0000c1d7.bin
cfeeb435160d60791f80d5bbbc9ee2a11b94784f4bedbe1fc234d7a811780bfb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC1D7 6660 bytes

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