Malicious PDF — malware analysis report

Static analysis result for SHA-256 42a4adea7c9dc1b6…

MALICIOUS

PDF

55.4 KB Created: 2020-08-13 00:54:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: accfc4aec29980466b3e991cfe83cff0 SHA-1: 6ad9893b721ee996edca14dfb89b5c44ff9d101c SHA-256: 42a4adea7c9dc1b6159bd3aa0b4ff453515cd6281ba3292c13fbe38b4a5ff8f6
140 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one heuristic specifically flagging a link to a known malicious redirector. Another heuristic indicates a 'link farm' pattern, suggesting an attempt to generate traffic or distribute content. The document body also contains the malicious URL, reinforcing the lure. No scripts were extracted from this sample.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.com/wb?keyword=contoh%20proposal%20usaha%20jasa%20pdf
    • http://gapegosug.stauntondistrictumc.org/uploads/1/3/2/6/132682883/loralarik.pdf
    • http://files.heitzmansions.com/uploads/1/3/0/7/130776603/9967635.pdf
    • http://files.crazycraftcubby.com/uploads/1/3/0/9/130969614/ad420.pdf
    • http://files.t-mosaic.com/uploads/1/3/0/7/130740504/momivimetenopiv.pdf
    • https://cdn.shopify.com/s/files/1/0450/9233/9877/files/articles_on_educational_psychology.pdf
    • https://cdn.shopify.com/s/files/1/0434/1966/4533/files/87849656313.pdf
    • https://cdn.shopify.com/s/files/1/0433/3925/1870/files/69915487794.pdf
    • https://cdn.shopify.com/s/files/1/0429/4089/1292/files/39165077875.pdf
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/plural_form_of_irregular_nouns_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0433/2034/4731/files/network_administration_and_management.pdf
    • https://cdn.shopify.com/s/files/1/0437/6795/5605/files/88743486467.pdf
    • https://cdn.shopify.com/s/files/1/0437/5363/5989/files/41845609707.pdf
    • https://cdn.shopify.com/s/files/1/0434/9041/0658/files/sufodubodiwuramo.pdf
    • https://cdn.shopify.com/s/files/1/0433/7755/7660/files/change_mac_address_iphone.pdf
    • https://cdn.shopify.com/s/files/1/0441/1251/1128/files/80979465405.pdf
    • https://cdn.shopify.com/s/files/1/0433/6871/0300/files/men_in_black_free_online.pdf
    • https://cdn.shopify.com/s/files/1/0434/3532/7653/files/sonasamesepezoxit.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_off00009d89.bin
3c0a9a7959fd6a04fdf36397ed9a61ad0d78f9e150c4d5bfa029303406fc07cc
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D89 5112 bytes
font_01_sfnt_off0000aedf.bin
9bd7cddb281778967b1cbc7152300089054386a5f56643adc2dd45118ae5fe29
pdf-font-stream PDF embedded font (sfnt) at offset 0xAEDF 9948 bytes