Malicious PDF — malware analysis report

Static analysis result for SHA-256 85dd62f0aee1618e…

MALICIOUS

PDF

47.5 KB Created: 2020-08-15 07:49:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bacb70d81ce6c221e712d295805fad8 SHA-1: 3dfbe6b2bbf31bc0dd82502e868165dbffb3b3e5 SHA-256: 85dd62f0aee1618e8be7f28355088d5b29a4f831d712d9db8922a52dd63f9a89
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to what appears to be a link farm hosted on Shopify. One of the primary links, 'https://ttraff.cc/pify?keyword=bible+app+kjv+apk', is flagged as a malicious redirector. This suggests the document's purpose is to drive traffic to malicious infrastructure, likely for phishing or malware distribution, under the guise of providing resources related to a Bible app.

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=bible+app+kjv+apk
    • http://bogokoma.beyondbodyclinic.com/uploads/1/3/2/6/132682717/db0752d7.pdf
    • http://files.dxmini.com/uploads/1/3/1/0/131070689/wadenafo_betetinidiragik_dixuvixibakon.pdf
    • http://zukapazo.uglysaves.org/uploads/1/3/0/8/130873951/2446944.pdf
    • http://botutomev.jamieshomecare.com/uploads/1/3/0/8/130814297/vigawawon.pdf
    • https://cdn.shopify.com/s/files/1/0428/9862/0569/files/maltese_falcon_script.pdf
    • https://cdn.shopify.com/s/files/1/0434/7117/5832/files/xukiwewexapopuzuvegegewi.pdf
    • https://cdn.shopify.com/s/files/1/0437/9512/0289/files/sofagutumedajenumil.pdf
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/63459700382.pdf
    • https://cdn.shopify.com/s/files/1/0429/7362/6524/files/99576160068.pdf
    • https://cdn.shopify.com/s/files/1/0432/5048/3368/files/86800287320.pdf
    • https://cdn.shopify.com/s/files/1/0438/9535/7595/files/effortless_english_book_full.pdf
    • https://cdn.shopify.com/s/files/1/0429/1067/9206/files/zajumevufesu.pdf
    • https://cdn.shopify.com/s/files/1/0437/3676/0485/files/free_english_synonyms_and_antonyms.pdf
    • https://cdn.shopify.com/s/files/1/0433/9066/4860/files/61888494341.pdf
    • https://cdn.shopify.com/s/files/1/0438/1055/4013/files/87136307730.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_off000067f0.bin
50f0f1d245c5a87ed18c75d065813745dde5c2d0d9e79a304e75245b7d43c30d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67F0 4928 bytes
font_01_sfnt_off000078cf.bin
ea34fed798a64c82939cdf44e984d098df03c4051f8b999dcdf71606c5a6d2e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78CF 10352 bytes
font_02_sfnt_off00009c6f.bin
39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C6F 16092 bytes

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