Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccca6f55c47a9487…

MALICIOUS

PDF

44.5 KB Created: 2020-09-13 00:05:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eb9922ece5f70d6a52234cb302720f91 SHA-1: 45ea380e87901f4dae862b8a2965abdbe17041d6 SHA-256: ccca6f55c47a9487f12efca947abe31b41316a860a506a579880bab7a2889fa6
154 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 'ttraff.club'. The document body, though heavily obfuscated, contains this URL and also references a 'fiscal policy paper'. This suggests a social engineering lure to trick the user into clicking the malicious link. The PDF also contains a large number of embedded links to shopify.com, likely part of a link farm to improve SEO for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.club/pify?keyword=fiscal+policy+paper+eco+3720
    • https://cdn.shopify.com/s/files/1/0429/3004/5091/files/kpmg_asc_740_tax_reform.pdf
    • https://cdn.shopify.com/s/files/1/0439/9998/5822/files/85045379386.pdf
    • https://cdn.shopify.com/s/files/1/0431/7334/7488/files/41147965088.pdf
    • https://cdn.shopify.com/s/files/1/0431/5529/2321/files/biggie_man_by_small_doctor.pdf
    • https://cdn.shopify.com/s/files/1/0427/7128/4135/files/14102353519.pdf
    • https://cdn.shopify.com/s/files/1/0429/9853/0201/files/kuzinuwun.pdf
    • https://cdn.shopify.com/s/files/1/0433/6674/4220/files/45838175483.pdf
    • https://cdn.shopify.com/s/files/1/0438/2251/4338/files/farseers_raging_tempest_mount_guide.pdf
    • https://cdn.shopify.com/s/files/1/0461/3406/7353/files/49584437014.pdf
    • https://cdn.shopify.com/s/files/1/0432/6332/8411/files/soroselomedid.pdf
    • https://cdn.shopify.com/s/files/1/0429/3427/2159/files/roadways_word_whizzle_search_answers.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007112.bin
e01a482f22de3f7ffaf354f5008a60969fe4017d7b23f3d331697fb454f5a73f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7112 5500 bytes
font_01_sfnt_off000083e6.bin
fbddaf449b1a8cebcfd5f27d21859e0960fb655fbf5f937536c4424e864d3d7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83E6 9884 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.