Malicious PDF — malware analysis report

Static analysis result for SHA-256 d34d203118e68765…

MALICIOUS

PDF

33.5 KB Created: 2020-08-28 12:29:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 39e95f94af4bfe24ba074ee5cb242701 SHA-1: feba218620620da16b21b2ad7812f6c555be09cf SHA-256: d34d203118e68765e71927ba8d77635404c99b0746d524008bac283550355e58
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a redirector, which is a common tactic for distributing malware or phishing pages. The document body and embedded links suggest a lure for downloading content, specifically a movie. The presence of multiple links, including one to a known malicious redirector, strongly indicates a malicious intent to redirect the user to a harmful site. The ML classifier also flagged this PDF with high confidence.

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.me/pify?keyword=download+film+5cm+full+movie+indones
    • http://files.sangabrielvalleyapipflag.com/uploads/1/3/0/9/130968947/b88edff5.pdf
    • http://files.practicemakespresence.com/uploads/1/3/0/7/130775106/dewofasin_gatexoxazikuk_zelufunutuvo_lalekunekote.pdf
    • http://taxes.n3vem.com/uploads/1/3/0/8/130813059/tovezolegi.pdf
    • https://cdn.shopify.com/s/files/1/0460/1610/2559/files/chrome_for_windows_xp_professional.pdf
    • https://cdn.shopify.com/s/files/1/0428/1958/4166/files/12026686794.pdf
    • https://cdn.shopify.com/s/files/1/0431/8255/5297/files/lugefopawoku.pdf
    • https://cdn.shopify.com/s/files/1/0433/4052/9816/files/kitab_tadzkirah_ahmadiyah.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/79086372433.pdf
    • https://cdn.shopify.com/s/files/1/0434/4525/6344/files/xexorexarif.pdf
    • https://cdn.shopify.com/s/files/1/0432/3685/1874/files/english_alphabet_writing_practice_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/6071/4904/files/tetamujibijolekiju.pdf
    • https://cdn.shopify.com/s/files/1/0433/2093/4558/files/panubej.pdf
    • https://cdn.shopify.com/s/files/1/0433/7595/2030/files/apc_smart_ups_2200_tower_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/9944/6693/files/lic_jeevan_amar_proposal_form_download.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_off00004623.bin
02b44a246489321f5b32bc1b4d5d6756b4e1a2f8f567c877f263df985c4e0b78
pdf-font-stream PDF embedded font (sfnt) at offset 0x4623 5348 bytes
font_01_sfnt_off0000585f.bin
15d18b382a63ff8c2811b5f073131430688740bec2b72bee1e313efb4d5a2555
pdf-font-stream PDF embedded font (sfnt) at offset 0x585F 9604 bytes