Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f061884825fbe88…

MALICIOUS

PDF

55.8 KB Created: 2020-07-08 19:00:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9ac15d899a277a5f7ecb69a4287c1220 SHA-1: 671d9ab2cb8330ed6a90876bad616e620055ef06 SHA-256: 1f061884825fbe8846fb579d01a29f2a24b9c34bbbf25edceef67d8d6ea9a0d3
184 Risk Score

Malware Insights

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

The PDF document contains numerous links, with one specifically pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains text related to 'darood tanjeena download pdf' and the authoring application 'wkhtmltopdf', suggesting a lure for users searching for specific content. The embedded links likely lead to further malicious sites or malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/wb?keyword=darood%20tanjeena%20download%20pdf In PDF document text
    • http://files.heavygrail.net/uploads/1/3/1/3/131380733/bitat.pdfIn PDF document text
    • http://files.rkspeech.com/uploads/1/3/1/4/131438249/9075954.pdfIn PDF document text
    • http://files.kimberleykleczka.com/uploads/1/3/1/3/131398264/kagalemufixoxusajuse.pdfIn PDF document text
    • http://files.ethelbustamante.net/uploads/1/3/1/4/131406356/7012749.pdfIn PDF document text
    • http://files.curetypeone.com/uploads/1/3/1/3/131380121/dadf492e7ec13e.pdfIn PDF document text
    • http://files.elevatecbdcosmetics.com/uploads/1/3/2/6/132682290/6795648.pdfIn PDF document text
    • http://files.helptakeaction.com/uploads/1/3/2/6/132681938/3009213.pdfIn PDF document text
    • http://files.musicatmainstreet.com/uploads/1/3/0/7/130739839/davetuxu.pdfIn PDF document text
    • http://files.tampa2stroke.com/uploads/1/3/1/3/131398066/f36c89f3c27bcd2.pdfIn PDF document text
    • http://files.adelaidegangshow.com.au/uploads/1/3/1/4/131483154/visirenifarusemavi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://kovimaj.files.wordpress.com/2020/07/vamujagujaf.pdfIn PDF document text
    • https://lofukidowoji.files.wordpress.com/2020/07/tivawosejus.pdfIn PDF document text
    • https://nofosepeji.files.wordpress.com/2020/06/banizopakiwekof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pesaveput.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/juzopuzenafososokazulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowojemabedeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tokon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sakemiribukewud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dijovosulodomozov.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000a1de.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA1DE 26384 bytes
SHA-256: 235298766437f75d50d1322c568241e22a79b6d733ecbc75b23355cc9bf49739
font_00_sfnt_off00006f69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F69 4764 bytes
SHA-256: 26923844e03e51018d6702b32a5a8ca16d8acd3c4682bee462c327170a31d2bc
font_01_sfnt_off00007fc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC4 10164 bytes
SHA-256: bba8fd1a91bf9d38c58f1193cfeb4cb36a526f872c7ee921dc9f9ad7b2921c29