Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb6a109f3443a5c5…

MALICIOUS

PDF

52.5 KB Created: 2020-08-07 02:16:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c2d2b33b21113acf098d6b828489ae0b SHA-1: 6153ea368b56a05125c266bf928ee946c7a82241 SHA-256: fb6a109f3443a5c5b08ab19b5907e743aeb1b65aa62880829dffc7308240a505
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to domains associated with link farms and redirectors, indicating a phishing or malicious redirection attempt. The primary malicious URL identified is https://ttraff.ru/pify?keyword=applications+of+derivatives+pdf, which is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify links, suggesting a lure to download further content or visit malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.ru/pify?keyword=applications+of+derivatives+pdf
    • http://files.smhswarriorclub.com/uploads/1/3/1/4/131437680/pinerunasu.pdf
    • http://files.secondchancepetnetwork.ca/uploads/1/3/1/4/131438419/nelefetebab.pdf
    • http://bixipipiw.likklewhispa.com/uploads/1/3/0/8/130874063/0e6bb.pdf
    • http://files.manchestercitytantricmassage.com/uploads/1/3/1/3/131398091/zenibo.pdf
    • http://fizupape.rcmcm.com/uploads/1/3/0/7/130738732/lugabaf_sevepivofematum.pdf
    • https://cdn.shopify.com/s/files/1/0434/5584/0409/files/final_fantasy.pdf
    • https://cdn.shopify.com/s/files/1/0434/0485/3402/files/15370306958.pdf
    • https://cdn.shopify.com/s/files/1/0434/4633/7693/files/tojosotifopigowamamako.pdf
    • https://cdn.shopify.com/s/files/1/0433/1739/5614/files/bajegobaseloxo.pdf
    • https://cdn.shopify.com/s/files/1/0437/8991/0167/files/bootstrap_transparent_button.pdf
    • https://cdn.shopify.com/s/files/1/0436/6571/9449/files/nitemurejupusewer.pdf
    • https://cdn.shopify.com/s/files/1/0428/3580/4319/files/67611041471.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/muwaferoxupenem.pdf
    • https://cdn.shopify.com/s/files/1/0432/6899/7288/files/tewazisa.pdf
    • https://cdn.shopify.com/s/files/1/0430/6547/5229/files/75394168938.pdf
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/13528528549.pdf
    • https://cdn.shopify.com/s/files/1/0436/3599/8880/files/21269911227.pdf
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/cards_against_humanity_expansion_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/0805/7759/files/the_dark_knight_screenplay.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_off00006c01.bin
f61c7429f0ac3ccc42039fb8d75462ec54a192a99556ae951e8d9076a35ec2e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C01 4984 bytes
font_01_sfnt_off00007cfa.bin
9aa2909862ec4194e5d1bc02214e5e79ae96b7e4fb49bc57831c5ed420e67525		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CFA 10416 bytes
font_02_sfnt_off0000a0c4.bin
aa7764317d874822be00b3500928c580bf428ddb4aa4e06dadabae01d130322c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA0C4 16188 bytes
font_03_sfnt_off0000b5fe.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB5FE 4324 bytes

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