Malicious PDF — malware analysis report

Static analysis result for SHA-256 48b13e785fac99d1…

MALICIOUS

PDF

39.6 KB Created: 2020-08-22 15:55:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 063d246b84b7f8c33b05d9f9d81179b7 SHA-1: 7163d1975ab170c9061858ae0f8758b04ffd9cac SHA-256: 48b13e785fac99d1c48bc6e28d7566d0ae997bd9a91c52b99791c7f4bf1eb896
222 Risk Score

Malware Insights

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

The PDF contains a lure referencing 'aimbot.exe ps4' and embeds multiple links, one of which, https://ttraff.ru/pify?keyword=aimbot.+exe++ps4, is flagged as a malicious redirector. The document also contains a large number of links to Shopify-hosted PDFs, suggesting a link farm for SEO poisoning or traffic generation. The heuristic 'SE_SECRET_RECOVERY_LURE' indicates the document may also attempt to solicit sensitive information, though the primary observed attack vector is the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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.ru/pify?keyword=aimbot.+exe++ps4 In PDF document text
    • http://files.bridges2learning.net/uploads/1/3/2/6/132695213/5419900.pdfIn PDF document text
    • http://files.globalgymnasticscheer.com/uploads/1/3/1/8/131856306/vokeladon_nevin_fufobi_vuravamefesa.pdfIn PDF document text
    • http://files.cascadiannomads.com/uploads/1/3/0/7/130776416/rudegazu.pdfIn PDF document text
    • http://files.jacindaaytchillustration.com/uploads/1/3/0/7/130738512/siweterolimaxokiju.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1806/7876/files/dmv_ny_road_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0360/0283/files/64020685491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3663/8360/files/universal_bending_machine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5469/3537/files/28607632918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5020/4327/files/convertible_note_example_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5727/3237/files/magivasujamofomepeneb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/fipamimadobeguzavabuga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2849/5001/files/xamazosomisilek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1747/0101/files/girulivuzi.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E91 4944 bytes
SHA-256: e1a8f9699512f2ff84205f2c1dc90a18b9f63e7da4ed33e45948f106a817d412
font_01_sfnt_off00006f60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F60 10128 bytes
SHA-256: 7056aee6b96802569a183be594470ba7e0d8ff764e8517e3f0f42e590f98b2d9