Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f05f2580a7bf6f…

MALICIOUS

PDF

49.2 KB Created: 2020-08-20 00:09:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c119749d0711fc82cfa85f4442cb7cb SHA-1: 2762977f16896a3e7da1560d28136d8a5020cc6d SHA-256: a4f05f2580a7bf6fe06e9226681ffe4316b2d9fe6c7e3bc86ccb35302166b86d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The embedded URL https://ttraff.ru/pify?keyword=facebook+header+template+2018 is the primary indicator of this malicious redirection. Additionally, a PDF_SEO_LINK_FARM heuristic suggests the document is part of a larger link farm, with cdn.shopify.com being a dominant host for these links. The document body, though heavily obfuscated, contains the target URL, reinforcing the lure.

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.ru/pify?keyword=facebook+header+template+2018
    • http://files.northernchainspecialties.com/uploads/1/3/1/4/131407796/71111330083d.pdf
    • http://wurisek.tonyawalls.com/uploads/1/3/2/8/132815000/b0645deee70.pdf
    • http://files.claimministries.org/uploads/1/3/0/7/130776590/jirawiw.pdf
    • http://vizawuga.sacredlivingspiritualcenter.com/uploads/1/3/0/7/130739616/xowovipuzaxeba-lofax-xolufiv.pdf
    • http://files.northernchainspecialties.com/uploads/1/3/1/4/131407796/7
    • https://cdn.shopify.com/s/files/1/0432/5788/8936/files/shatpath_brahman_granth.pdf
    • https://cdn.shopify.com/s/files/1/0434/4076/7132/files/filmic_pro_crack.pdf
    • https://cdn.shopify.com/s/files/1/0449/6257/8591/files/mikimajebaboxozevejijof.pdf
    • https://cdn.shopify.com/s/files/1/0438/1219/2413/files/sikitemexekuj.pdf
    • https://cdn.shopify.com/s/files/1/0440/6594/7800/files/59680884014.pdf
    • https://cdn.shopify.com/s/files/1/0428/3059/4204/files/90666581858.pdf
    • https://cdn.shopify.com/s/files/1/0433/5602/9093/files/87630208751.pdf
    • https://cdn.shopify.com/s/files/1/0437/8814/0696/files/difference_between_android_and_iphone_headphones.pdf
    • https://cdn.shopify.com/s/files/1/0431/3258/4098/files/vovitezojasizoxazaloba.pdf
    • https://cdn.shopify.com/s/files/1/0429/1608/5916/files/bible_quiz_bee.pdf
    • https://cdn.shopify.com/s/files/1/0429/8250/6647/files/sokajozuriletububijomi.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_off000073ce.bin
7f491db35405f05f2b1118182ecc1182008fc879166049cebefd8ea852142c1a
pdf-font-stream PDF embedded font (sfnt) at offset 0x73CE 5448 bytes
font_01_sfnt_off00008649.bin
357fb80c15b00efcab7b1222b8cb35de643597880325b59a6f5f49f3d0b83c59
pdf-font-stream PDF embedded font (sfnt) at offset 0x8649 10308 bytes
font_02_sfnt_off0000a940.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0xA940 4324 bytes