Malicious PDF — malware analysis report

Static analysis result for SHA-256 e045dac2658a3b02…

MALICIOUS

PDF

50.7 KB Created: 2020-08-09 19:18:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4927a408ac0bfde09aab63bb5851b049 SHA-1: d05cbfe77aee9dad969a86fa1d8a9fda979a9adc SHA-256: e045dac2658a3b02e221da04e4ebfc63c499272faf4b94b83ea6fdae4a23e6a4
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains text related to a book download, suggesting a lure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=rukmini+swayamvar+book+in+english+pdf, which is flagged as a malicious redirector. The file's structure and the presence of numerous external links indicate a likely attempt to drive traffic to malicious sites, potentially for further exploitation or phishing.

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=rukmini+swayamvar+book+in+english+pdf
    • http://sofikobe.fishermanswifelife.com/uploads/1/3/1/0/131070718/6006195.pdf
    • http://files.dwarfhollowfarmstead.com/uploads/1/3/1/3/131379510/wemizibesiwivezik.pdf
    • http://files.mindfullyliving.net/uploads/1/3/0/7/130738921/94ced.pdf
    • http://files.demirandaguitar.com/uploads/1/3/1/8/131871690/fokodibavuf_zogovisum.pdf
    • http://files.jemskpropertyventuresinc.com/uploads/1/3/0/8/130874680/ef6bd8afcf.pdf
    • https://cdn.shopify.com/s/files/1/0434/3860/4450/files/59853963208.pdf
    • https://cdn.shopify.com/s/files/1/0437/6952/8471/files/novive.pdf
    • https://cdn.shopify.com/s/files/1/0430/7589/5450/files/98622412933.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xoperesotojazi.pdf
    • https://cdn.shopify.com/s/files/1/0435/8206/2753/files/32724729414.pdf
    • https://cdn.shopify.com/s/files/1/0431/8042/5370/files/pelukanatazosebemubatep.pdf
    • https://cdn.shopify.com/s/files/1/0433/9934/8389/files/maxodunexox.pdf
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/36583055085.pdf
    • https://cdn.shopify.com/s/files/1/0432/8580/7268/files/zuvafoxaritut.pdf
    • https://cdn.shopify.com/s/files/1/0430/0154/4863/files/33876759851.pdf
    • https://cdn.shopify.com/s/files/1/0427/8131/1132/files/abecedario_manuscrito.pdf
    • https://cdn.shopify.com/s/files/1/0438/6881/5528/files/warframe_synthesis_target_locations.pdf
    • https://cdn.shopify.com/s/files/1/0429/1792/0934/files/84950517084.pdf
    • https://cdn.shopify.com/s/files/1/0431/7547/7416/files/20495742573.pdf
    • https://cdn.shopify.com/s/files/1/0436/4071/7462/files/71866864324.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_off00007775.bin
c9bf17230a3521811d801e555b4fcb69cf78b84e8ad0f69a23b3f5a3e8ecf8b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7775 5920 bytes
font_01_sfnt_off00008b92.bin
408dc6e63321ad0bb2d72116d0eefadd8516c388e84c5d3f957fb8980b652ba7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B92 10372 bytes
font_02_sfnt_off0000af05.bin
b622cef8fd089dba9774dd1afd431b2784ac8653faeb3f69d8fc32e5e04f6e94		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF05 3200 bytes

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