Malicious PDF — malware analysis report

Static analysis result for SHA-256 cba79071877b4fe0…

MALICIOUS

PDF

37.3 KB Created: 2020-08-16 12:42:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80554c3fdda19631ca2f5dc48671fe6a SHA-1: 7391c2016eb88cf9d270d65aecee3a10107fadfe SHA-256: cba79071877b4fe08640d680d92713928bd8301ee513f55c41e0c06796e36529
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=bibiliya+yera+apk'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of a PDF link farm further supports the malicious intent, aiming to distribute malicious content or engage in SEO abuse. No scripts were extracted, limiting the analysis of direct payload execution.

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=bibiliya+yera+apk
    • http://nasobiner.spiritdrivenevents.com/uploads/1/3/2/8/132814930/mojadujiwufimexeri.pdf
    • http://files.orangehistory.org/uploads/1/3/1/3/131380998/6a7d3c8e67aa6.pdf
    • http://wiziw.mattjacobsphotography.net/uploads/1/3/0/9/130969352/4085048.pdf
    • http://files.tccoloradocup.com/uploads/1/3/2/6/132681378/8549873.pdf
    • https://cdn.shopify.com/s/files/1/0433/2634/1272/files/45183731843.pdf
    • https://cdn.shopify.com/s/files/1/0430/9575/2858/files/56138961137.pdf
    • https://cdn.shopify.com/s/files/1/0429/0550/1852/files/12193266122.pdf
    • https://cdn.shopify.com/s/files/1/0431/7839/3762/files/xolekovawuk.pdf
    • https://cdn.shopify.com/s/files/1/0430/8451/3440/files/gogiwema.pdf
    • https://cdn.shopify.com/s/files/1/0445/4694/9279/files/law_on_obligation_and_contracts_reviewer.pdf
    • https://cdn.shopify.com/s/files/1/0434/3463/9522/files/bass_guitar_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0430/7140/6241/files/onubad_boi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17612659915.pdf
    • https://cdn.shopify.com/s/files/1/0432/9222/9797/files/social_media_marketing_thesis.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000481d.bin
5d2d9348e1fde060270830a39256e693919ee2793e8098a5afed4ab4da4182a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x481D 3848 bytes
font_01_sfnt_off000055bb.bin
5cbaa96c9e0c69d23c3951f8a45dd11f338cc78d8c4326602b7ad5412fa4547b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55BB 4988 bytes
font_02_sfnt_off000066c3.bin
74436b1e97b946bb53b6e986d66547f403297fb8bf595d4d7b2b4d3ae6f90591		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66C3 9880 bytes

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