Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eeb55f4203b46f6…

MALICIOUS

PDF

35.6 KB Created: 2020-08-05 04:39:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cdfcdce6a380fe921da85f43c53bc265 SHA-1: d9e9b4e7eb50e9fba16b00fc1df00e573fb0955e SHA-256: 4eeb55f4203b46f6c0cb2b395f0e224cd444b1b52a2e3eaf848c132cf3b26bc9
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a malicious redirector link disguised as a book download, which is a common lure for phishing or malware distribution. The document body, though heavily obfuscated, contains the target URL and references to PDF downloads, reinforcing the lure. The presence of numerous external PDF links suggests a link farm intended to manipulate search engine results or distribute malicious content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=arya+samaj+books+pdf+download
    • http://files.rightseed.com/uploads/1/3/0/7/130739781/60c22d381c.pdf
    • http://files.georgehi.net/uploads/1/3/2/6/132682048/bujeb_didizetidazipi.pdf
    • http://files.lyonsvolunteers.org/uploads/1/3/0/9/130969634/sorizuvako_zinul_movevesuj_sixituxivid.pdf
    • http://files.dolcevitaspomeranians.com/uploads/1/3/2/6/132682171/45fe172e65.pdf
    • http://files.readingfamilyaid.org/uploads/1/3/1/3/131379276/8e909c3e288d.pdf
    • http://www.aryamantavya.in/wp-content/uploads/2014/04/Dyanand-J
    • https://cdn.shopify.com/s/files/1/0428/8525/1235/files/vatikekagogotirororibik.pdf
    • https://cdn.shopify.com/s/files/1/0434/1625/6677/files/jegivutibut.pdf
    • https://cdn.shopify.com/s/files/1/0427/8219/5879/files/92693827451.pdf
    • https://cdn.shopify.com/s/files/1/0428/2331/9715/files/81320038074.pdf
    • https://cdn.shopify.com/s/files/1/0433/9544/8988/files/dazzle_dvc100_drivers.pdf
    • https://cdn.shopify.com/s/files/1/0429/3525/5203/files/vikezizumew.pdf
    • https://cdn.shopify.com/s/files/1/0436/9947/0486/files/who_is_the_addressee_in_a_letter.pdf
    • https://cdn.shopify.com/s/files/1/0429/6415/6575/files/gamoza.pdf
    • https://cdn.shopify.com/s/files/1/0428/3750/8252/files/brinks_lock_reset.pdf
    • https://cdn.shopify.com/s/files/1/0438/8821/4171/files/ultimate_sweater_machine_pattern_book.pdf
    • https://cdn.shopify.com/s/files/1/0438/9978/1275/files/15345322153.pdf
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/78162337647.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_off00004ba1.bin
33211617fc25e20cecdcf97007e59f64739118e770b920fa4ed5aa82462ffa82
pdf-font-stream PDF embedded font (sfnt) at offset 0x4BA1 5648 bytes
font_01_sfnt_off00005edb.bin
2c99b548fa4966c141ac3be88dcfa0ece74b9f252ddcbebb708d1566b691a12d
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EDB 10408 bytes