Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9d0992a43dca22a…

MALICIOUS

PDF

70.8 KB Created: 2020-08-30 23:41:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f8395c191517db102aa32ce5927b8847 SHA-1: 151c4cd92546c9644cb7df347425705be31146fd SHA-256: c9d0992a43dca22a6cc29f16293f17edd8389a47558f028dae3e4a0dfc76a5df
140 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=map+of+the+underworld'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com. The document body, though partially corrupted, contains the same malicious URL and a benign-looking title, suggesting a lure to trick users into clicking the link. The presence of a callback phishing lure heuristic further supports the malicious intent.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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/wix?keyword=map+of+the+underworld
    • https://cdn.shopify.com/s/files/1/0434/0659/0106/files/xuxipaj.pdf
    • https://cdn.shopify.com/s/files/1/0434/8801/8594/files/11538589778.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57790570823.pdf
    • https://cdn.shopify.com/s/files/1/0437/6385/9610/files/faa_form_8710-_1.pdf
    • https://cdn.shopify.com/s/files/1/0436/6660/4182/files/data_validation_google_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0434/5282/5767/files/powuzisovuriletekuj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45235944591.pdf
    • https://cdn.shopify.com/s/files/1/0432/6552/3870/files/bookganga_marathi_books_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/6499/1637/files/sajuruwerideretorelomof.pdf
    • https://cdn.shopify.com/s/files/1/0427/4615/1078/files/current_affairs_2020_in_english_for_tnpsc.pdf
    • https://cdn.shopify.com/s/files/1/0437/2594/7029/files/explosion_box_video.pdf
    • https://cdn.shopify.com/s/files/1/0437/3312/3221/files/4099994945.pdf
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/old_testament_bible_stories_in_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0430/1576/6177/files/xuvakotisiwumikaw.pdf
    • https://cdn.shopify.com/s/files/1/0429/8119/5927/files/lawafokeriwigarososop.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/22511335110.pdf
    • https://cdn.shopify.com/s/files/1/0435/1036/6362/files/tusavumodoxikomel.pdf
    • https://cdn.shopify.com/s/files/1/0437/1123/4197/files/73355060748.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_off0000bb8f.bin
6dbfa505808624c2dc713d38c6b3f1ef2016caa76bb7a8394ba20894cc32b4ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBB8F 4884 bytes
font_01_sfnt_off0000cc32.bin
e82a16ff2e50fe4bf84bf5a248bdfbe86ca78976e5f41ab70558b5def636e67e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCC32 18644 bytes
font_02_sfnt_off0000ffec.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFFEC 4324 bytes

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