Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4be42c8d1d38e9b…

MALICIOUS

PDF

50.8 KB Created: 2020-08-24 07:18:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a1b0c06aaaf580750afca408dec7d9de SHA-1: 11fe869da9b88edb4012bac2ff2114d58526fd86 SHA-256: e4be42c8d1d38e9bb9f44e4421447d88e33fe8aae745d74e47db06a8e6abe72f
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL, https://ttraff.com/pify?keyword=anarkali+of+aarah+free+movie, is designed to lure users into clicking by promising a free movie. The document body, though heavily obfuscated, contains references to this lure and other embedded URLs, many of which point to Shopify domains that host PDF files, likely as part of a link farm to improve search engine ranking for malicious content.

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.com/pify?keyword=anarkali+of+aarah+free+movie
    • http://zevugo.lentonmethodist.com/uploads/1/3/1/6/131636725/piluvej-bakekabupu.pdf
    • http://pekegulo.sprockettherapy.com/uploads/1/3/1/3/131383283/fideziwejur_mudexuzukige_vofalabotodoji.pdf
    • http://files.cogopsa.org/uploads/1/3/0/8/130813528/zokesaxajewakofetebo.pdf
    • http://files.kellymichellebaker.com/uploads/1/3/1/6/131606666/68db0.pdf
    • http://files.helmsbuffet.de/uploads/1/3/1/6/131607777/guxilizibodoz_wepuvakazij_kekare_naduvapigulob.pdf
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/61017801439.pdf
    • https://cdn.shopify.com/s/files/1/0428/7430/6727/files/kivisonaziwunemowizip.pdf
    • https://cdn.shopify.com/s/files/1/0462/7221/7237/files/rupagonebinobi.pdf
    • https://cdn.shopify.com/s/files/1/0439/0499/1387/files/57304302496.pdf
    • https://cdn.shopify.com/s/files/1/0439/4660/6760/files/min_heap_java.pdf
    • https://cdn.shopify.com/s/files/1/0430/5181/0969/files/brs_embryology.pdf
    • https://cdn.shopify.com/s/files/1/0436/9544/0040/files/compare_two_excel_spreadsheets_in_java.pdf
    • https://cdn.shopify.com/s/files/1/0435/9107/3951/files/mavadatuv.pdf
    • https://cdn.shopify.com/s/files/1/0434/3863/7208/files/13652986810.pdf
    • https://cdn.shopify.com/s/files/1/0428/8905/2316/files/velodusewirozojan.pdf
    • https://cdn.shopify.com/s/files/1/0432/9511/3374/files/setotijefetujaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/4790/2623/files/3813533829.pdf
    • https://cdn.shopify.com/s/files/1/0461/0955/6899/files/android_bitmap_image_from_drawable.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_off000064a4.bin
31d9a33bab74a51cda62f3183255af14a5376f2a57b1922cb087e31b2bd3b217		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64A4 4944 bytes
font_01_sfnt_off00007547.bin
248f5b41b98c445c55a0f3d286d23597fc423f3039067c59630027c92f355368		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7547 10336 bytes
font_02_sfnt_off00009853.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9853 16164 bytes
font_03_sfnt_off0000ada8.bin
0572d12d0c7be54da7da1637fcba34eff02bb9022af0679678615d8bd7f3fe98		 pdf-font-stream PDF embedded font (sfnt) at offset 0xADA8 3900 bytes

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