Malicious PDF — malware analysis report

Static analysis result for SHA-256 48ac8cbca1c53dce…

MALICIOUS

PDF

42.9 KB Created: 2020-08-05 15:00:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 34d58017a2f04db96c6cb16efb869b5c SHA-1: e625a32552f428a3812d81afbf950a877950180b SHA-256: 48ac8cbca1c53dcef11f7f944b07219b00bfc14cf972d3b10544b4fea4b8e85e
148 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary malicious redirector link disguised as a banking regulation document. The document body, though heavily obfuscated, contains the malicious URL. The presence of a download button lure and a callback lure further supports a phishing or scam attempt.

Heuristics 5

  • 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
  • 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.cc/pify?keyword=rbi+banking+regulation+act+1949+pdf
    • http://files.simplydivinesuds.com/uploads/1/3/1/4/131407812/23f3d849.pdf
    • http://files.nesta-touch.com/uploads/1/3/0/8/130874332/94352c.pdf
    • http://files.dakotaashleymarie.com/uploads/1/3/2/7/132740639/dd3bcffaa44e7.pdf
    • http://xaxula.surayafoundation.com/uploads/1/3/0/7/130739835/9326617.pdf
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/98754258830.pdf
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/debiwodexare.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75609531209.pdf
    • https://cdn.shopify.com/s/files/1/0433/9807/0426/files/wunotenuri.pdf
    • https://cdn.shopify.com/s/files/1/0435/7334/6472/files/68475658001.pdf
    • https://cdn.shopify.com/s/files/1/0429/1778/9862/files/lapodojewazogimujopexaset.pdf
    • https://cdn.shopify.com/s/files/1/0432/9432/6942/files/renevezavotar.pdf
    • https://cdn.shopify.com/s/files/1/0430/1137/5267/files/51015581609.pdf
    • https://cdn.shopify.com/s/files/1/0428/6929/3215/files/66228254903.pdf
    • https://cdn.shopify.com/s/files/1/0431/7249/5524/files/29489745756.pdf
    • https://cdn.shopify.com/s/files/1/0433/9462/9786/files/periodic_table_ncert_11.pdf
    • https://cdn.shopify.com/s/files/1/0436/5379/1909/files/gutumaselifi.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_off0000675a.bin
68f21412f6fcc4a29ee778085413c00a72ecccf63af1ff2798563d3eb2b3b8a8
pdf-font-stream PDF embedded font (sfnt) at offset 0x675A 5652 bytes
font_01_sfnt_off00007abb.bin
a4ec99a2cfbea3741b080202478af8f0bfdb64fe85c398b769f26c37f5c2de51
pdf-font-stream PDF embedded font (sfnt) at offset 0x7ABB 10376 bytes