Malicious PDF — malware analysis report

Static analysis result for SHA-256 8079d5b210dd86be…

MALICIOUS

PDF

48.3 KB Created: 2020-08-09 21:29:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b783fd484643cf382c414f3f8093a31 SHA-1: 666a1786d48df89071dbb1eec6ab2e7274aeb157 SHA-256: 8079d5b210dd86bef5ac37acb1070b3c628fd453dce65620471698d2a98f3cd4
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, many of which point to a link farm hosted on Shopify. One of these links, presented as a Bible dictionary, redirects to a known malicious URL (ttraff.cc). This indicates a social engineering attempt to trick users into visiting a malicious site. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector is a strong indicator of malicious intent.

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.cc/pify?keyword=diccionario+de+la+biblia+reina+valera+pdf
    • http://files.greenearthtravel.com/uploads/1/3/1/4/131438071/wutopalowes-mofosipifikafil-munuvepepiri-pemubadula.pdf
    • http://files.hightechtintplus.com/uploads/1/3/2/3/132302973/47aff28564.pdf
    • http://vozimoti.evrimozgen.com/uploads/1/3/1/1/131164250/pizigonelutuxuvutu.pdf
    • http://files.davidjhelfand.info/uploads/1/3/0/8/130874400/bukako-fizabiferov-zojuruvefov.pdf
    • https://cdn.shopify.com/s/files/1/0437/5488/1175/files/errorless_biology_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/3971/1655/files/libumikiremutonomos.pdf
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/gapufirepigezipixew.pdf
    • https://cdn.shopify.com/s/files/1/0429/5114/7679/files/wuzewutibanomodufi.pdf
    • https://cdn.shopify.com/s/files/1/0437/8283/2280/files/nebilo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/texas_real_estate_commission_forms.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/razovegid.pdf
    • https://cdn.shopify.com/s/files/1/0428/2066/5510/files/antenatal_care_definition.pdf
    • https://cdn.shopify.com/s/files/1/0437/3757/9674/files/wupuxulujixib.pdf
    • https://cdn.shopify.com/s/files/1/0431/8694/6206/files/past_tense_vs_present_perfect_tense.pdf
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/code_discord_bot.pdf
    • https://cdn.shopify.com/s/files/1/0438/3696/5029/files/cwa_district_6.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000058d6.bin
8a86a4d4b0c7c891e601be9a0940adeb91ef1212cc470767863d63432157bbba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58D6 4880 bytes
font_01_sfnt_off0000696d.bin
4c367b1fe3da24ac199de70c9c1bca5aed91fedfcde7e8733a1126803c50ba33		 pdf-font-stream PDF embedded font (sfnt) at offset 0x696D 11500 bytes
font_02_sfnt_off00008f1f.bin
3dd6252bb62cdcc21e2b76bdeb68ba6c8db9c2d08edae94764e010183c5b1848		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F1F 16084 bytes
font_03_sfnt_off0000a3d5.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3D5 4324 bytes

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