Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc35abbb0ce0c478…

MALICIOUS

PDF

47.3 KB Created: 2020-08-22 12:23:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 24075fbdfa26663a759c798c2b2d3214 SHA-1: 7c303a4b803392cf9680de5cc5c0c346a3c5c506 SHA-256: fc35abbb0ce0c478874cd8c01b1a47ed7fcc6df4216f4a58468ad808c671bab2
130 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, contains text suggesting an urgency lure related to car accidents, aligning with the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristic firings. The primary malicious IOC is the redirector URL, which likely leads to further malicious content. No scripts were extracted, limiting the analysis of direct payload execution.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.cc/pify?keyword=law+reporting+car+accident+uk
    • http://xoteba.mondulkiritour.com/uploads/1/3/0/9/130969747/fde6d62ce6b14c.pdf
    • http://files.counsellingforliverpool.com/uploads/1/3/1/4/131410479/kinivazojixaw_bebubadobavo_sugozulakoto_lufakabexi.pdf
    • http://files.butterfliesandbumblebeesdaycare.com/uploads/1/3/1/0/131071129/digitipeb.pdf
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/21297629866.pdf
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/konajenepurevevarozat.pdf
    • https://cdn.shopify.com/s/files/1/0439/8972/9438/files/fanuc_teach_pendant_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/3377/9611/files/when_do_you_use_binomial_and_cdf.pdf
    • https://cdn.shopify.com/s/files/1/0433/6009/2309/files/27807412920.pdf
    • https://cdn.shopify.com/s/files/1/0430/8333/3785/files/balu_telugu_movie_bgm.pdf
    • https://cdn.shopify.com/s/files/1/0437/7142/9016/files/99984521310.pdf
    • https://cdn.shopify.com/s/files/1/0430/7822/1973/files/29600318185.pdf
    • https://cdn.shopify.com/s/files/1/0437/6641/5517/files/cursive_alphabet_writing_practice_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0433/9964/3286/files/58747777186.pdf
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/30936358609.pdf
    • https://cdn.shopify.com/s/files/1/0432/3826/0899/files/mokun.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_off000079b9.bin
b9abbe350ceb700b34c6c20353726a6a7cd010b5ed052349c6f1b9071a9dc2fe
pdf-font-stream PDF embedded font (sfnt) at offset 0x79B9 5128 bytes
font_01_sfnt_off00008b50.bin
11f457ca56ef275e0bd13727af32e09d85f5ca049d51fd054ed0b4a4169e0b77
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B50 11152 bytes