Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fd126ce11108993…

MALICIOUS

PDF

68.3 KB Created: 2020-08-11 20:47:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43df48bd265d05976ba070bfe517f5bf SHA-1: 21eadff89263cc4492653267f8c6ca53602562a8 SHA-256: 2fd126ce11108993535a129434a9bb33c4b86ed5a87147ce7228edc9343d38f4
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to mimic search results, specifically for 'Adobe pdf reader full version free download for windows 7', directing users to a malicious redirector. The presence of numerous generated SEO PDF links and a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK indicates a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the target URL, reinforcing the lure.

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=adobe+pdf+reader+full+version+free+download+for+windows+7
    • http://mixuj.crystalmorsegolf.com/uploads/1/3/2/8/132815176/f26d5143.pdf
    • http://files.lafaverfamilyfarm.com/uploads/1/3/0/7/130775588/f3cd868d0e2.pdf
    • http://paravigoz.projectcaleb.org/uploads/1/3/2/8/132816066/6f2adb5555b86.pdf
    • http://files.peepspeak.com/uploads/1/3/2/6/132681949/0e41b90.pdf
    • http://files.angipetersonpottery.com/uploads/1/3/2/7/132712306/wegug.pdf
    • https://cdn.shopify.com/s/files/1/0437/5491/3950/files/28083481625.pdf
    • https://cdn.shopify.com/s/files/1/0431/7573/9560/files/foxojukizabovejewini.pdf
    • https://cdn.shopify.com/s/files/1/0428/5235/2156/files/gunikenikolipazasotasut.pdf
    • https://cdn.shopify.com/s/files/1/0436/9602/9864/files/87540881656.pdf
    • https://cdn.shopify.com/s/files/1/0433/7706/6145/files/gixelikeveta.pdf
    • https://cdn.shopify.com/s/files/1/0436/0850/6531/files/oceans_of_the_world.pdf
    • https://cdn.shopify.com/s/files/1/0432/6627/7531/files/vesokixig.pdf
    • https://cdn.shopify.com/s/files/1/0428/8095/8617/files/74621837975.pdf
    • https://cdn.shopify.com/s/files/1/0432/7017/6932/files/bangla_to_english_passage_translation.pdf
    • https://cdn.shopify.com/s/files/1/0433/5380/0859/files/worarawopamo.pdf
    • https://cdn.shopify.com/s/files/1/0429/0415/8375/files/93631176386.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_off00007585.bin
5bfc71850c8c66cc50544ad89a906fd73c172ddeafece57e19e891f4216beb13
pdf-font-stream PDF embedded font (sfnt) at offset 0x7585 26760 bytes
font_01_sfnt_off0000c821.bin
29ea87d5c1d1a42bf73e4e7176b59be1e996db52e39464685f71d7ad0fb23ebb
pdf-font-stream PDF embedded font (sfnt) at offset 0xC821 5396 bytes
font_02_sfnt_off0000da9f.bin
1458e92cfb079782593ba282adb2cb683ad39d6d77ac15a6ec36b2cabf6fcb5a
pdf-font-stream PDF embedded font (sfnt) at offset 0xDA9F 12568 bytes