Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f0ac737fc5aa3a7…

MALICIOUS

PDF

53.4 KB Created: 2020-08-21 23:41:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d60e8c428944b96418fba44559579a6 SHA-1: dc8c909acbba74b2237d19a78d19036cf0f1f2df SHA-256: 3f0ac737fc5aa3a72eaa3734ad2e9d00a5e5c1f551a06e2498515d3c9a696399
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as "Cambridge 8 listening test 2 answers". This indicates a phishing or social engineering attempt to redirect the user to malicious content. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm for SEO manipulation or to obscure the final malicious destination.

Heuristics 3

  • 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.
  • 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=cambridge+8+listening+test+2+answers
    • http://files.davidsonpublishing.org/uploads/1/3/1/4/131438019/livutos.pdf
    • http://files.anna-needlepoint-pearson.com/uploads/1/3/1/3/131380107/novimuwigedud_kapowixuvakivo_gonanafaxupol_tunoribevu.pdf
    • http://pigomiliw.daughtersofcharityunngo.com/uploads/1/3/0/7/130776485/2538677.pdf
    • http://bilun.performingourfuture.com/uploads/1/3/0/7/130775405/vaveserodites.pdf
    • http://files.anna-needlepoint-pearson.com/uploads/1/3/1/3/131380107/n
    • https://cdn.shopify.com/s/files/1/0438/3758/7606/files/rezozuketifod.pdf
    • https://cdn.shopify.com/s/files/1/0430/5446/5175/files/wafigunesafan.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/gifawiwakotefigonitituxe.pdf
    • https://cdn.shopify.com/s/files/1/0434/2143/4023/files/94367082036.pdf
    • https://cdn.shopify.com/s/files/1/0433/4721/4486/files/31088010643.pdf
    • https://cdn.shopify.com/s/files/1/0434/7602/5501/files/skate_3_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/6780/1749/files/rufibupefufokojizodilav.pdf
    • https://cdn.shopify.com/s/files/1/0429/2401/5783/files/psc_bulletin_november_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/0225/6795/files/dsm_5_definition_of_mental_disorder.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008368.bin
cf4174ac13430616e35406bf8be08b0fba6c78f328cb539ef88ba326c4917ff7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8368 5404 bytes
font_01_sfnt_off000095b9.bin
8a43a74ccc5fdcb2cd96797777b65d63acdc48ad321605121248def623838db3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95B9 10816 bytes
font_02_sfnt_off0000ba5e.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBA5E 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.