Malicious PDF — malware analysis report

Static analysis result for SHA-256 2375791e73ab9e69…

MALICIOUS

PDF

46.6 KB Created: 2020-08-28 08:52:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f0635c2396c11df191fe2df037f6750c SHA-1: 535a63c3a5ea94280f0dd2d6a9d6d9b48702b0fd SHA-256: 2375791e73ab9e691951a9b94364453fe32944b48cfc358a6b713d4732e1f00b
152 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially obfuscated, contains text related to 'Pathfinder 2e advanced player's gu', suggesting a lure to disguise the malicious intent. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a phishing or scam attempt.

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.cc/pify?keyword=pathfinder+2e+advanced+player%2527s+gu
    • http://files.uhuruacademy.com/uploads/1/3/0/9/130969772/didubinemut_bomin_powabolamufagos_pukawasixifa.pdf
    • http://mizopagez.beardedbomb.com/uploads/1/3/1/0/131070894/tikavoliz.pdf
    • http://files.icollie.com/uploads/1/3/0/7/130738876/f8c21.pdf
    • http://files.downtownnewhavenmo.com/uploads/1/3/0/9/130970003/xuropugow-badiwapiwala.pdf
    • http://files.ohsoretrovintage.co.uk/uploads/1/3/0/7/130740072/nogipajarod-tuvoxado.pdf
    • https://cdn.shopify.com/s/files/1/0432/6581/8789/files/4622995362.pdf
    • https://cdn.shopify.com/s/files/1/0438/3971/7538/files/airport_codes_iata.pdf
    • https://cdn.shopify.com/s/files/1/0460/8173/6868/files/21141115828.pdf
    • https://cdn.shopify.com/s/files/1/0435/5378/3967/files/fekar.pdf
    • https://cdn.shopify.com/s/files/1/0465/1991/0558/files/caliban_s_war_mobi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8228/5216/files/83940716879.pdf
    • https://cdn.shopify.com/s/files/1/0431/6368/0932/files/world_of_greyhawk_folio.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_off00006859.bin
b2106461f4c8571d0941b11fe1c5aaf34f541069a07b51c37761fe2070b96280
pdf-font-stream PDF embedded font (sfnt) at offset 0x6859 5520 bytes
font_01_sfnt_off00007b25.bin
00a01fb5fe4dbbbd86e31565482902e4a8512db8b8e36c6b5fd8e1a2ef721909
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B25 10616 bytes
font_02_sfnt_off00009f80.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9F80 4324 bytes