Malicious PDF — malware analysis report

Static analysis result for SHA-256 e43b2333ddea9635…

MALICIOUS

PDF

47.9 KB Created: 2020-08-13 22:04:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dd700565c2109da5fe3758c0f7dc2962 SHA-1: 6fd7c1b315a230c6452ef9f5451af3831903e237 SHA-256: e43b2333ddea9635e7824cbb37af121547575fe13c1f9de5b8905fcd0b99a1b2
140 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating a phishing or scam attempt. The document body, though partially corrupted, contains text related to 'student attendance management system ppt' and the malicious URL 'https://ttraff.cc/pify?keyword=student+attendance+management+system+ppt', suggesting a lure to a malicious site. The presence of numerous links to external PDFs hosted on Shopify further supports the link farm heuristic.

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.cc/pify?keyword=student+attendance+management+system+ppt
    • http://files.30westfitandrec.com/uploads/1/3/1/6/131607027/juluvuzosokazidavig.pdf
    • http://files.patriciacarriganartist.com/uploads/1/3/0/8/130874360/fojezufebegekagad.pdf
    • http://files.fhhschoir.com/uploads/1/3/2/7/132740399/zotevefewawurejifob.pdf
    • http://wadilu.merlinsrescue.org/uploads/1/3/1/4/131482975/7446540.pdf
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/kidojikuvijosipe.pdf
    • https://cdn.shopify.com/s/files/1/0430/2084/5210/files/razajadezetixujeba.pdf
    • https://cdn.shopify.com/s/files/1/0434/3264/0664/files/33133955422.pdf
    • https://cdn.shopify.com/s/files/1/0449/1676/8923/files/wuzuwafanapunetofonivin.pdf
    • https://cdn.shopify.com/s/files/1/0429/4646/1855/files/78161329646.pdf
    • https://cdn.shopify.com/s/files/1/0431/9503/9905/files/33242651435.pdf
    • https://cdn.shopify.com/s/files/1/0434/6488/4384/files/terini.pdf
    • https://cdn.shopify.com/s/files/1/0431/9431/9009/files/righteousness_of_god_in_romans.pdf
    • https://cdn.shopify.com/s/files/1/0429/5586/6263/files/holy_quran_malayalam_english_translation_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/2218/8701/files/giniwop.pdf
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/99831032231.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78299439052.pdf
    • https://cdn.shopify.com/s/files/1/0428/1974/8006/files/67304776311.pdf
    • https://cdn.shopify.com/s/files/1/0434/7212/6117/files/17284861957.pdf
    • https://cdn.shopify.com/s/files/1/0427/5660/4070/files/list_of_autobiographies_of_famous_personalities.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_off000078cf.bin
ac448736b7b4956b250d6a56c8994513e14dc733dcdac5a219b574a5ca6466e6
pdf-font-stream PDF embedded font (sfnt) at offset 0x78CF 5472 bytes
font_01_sfnt_off00008b59.bin
acc8499fb42771b662000e1ad104714230c92951ba0665a28578b8766b22d5be
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B59 11500 bytes