Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0d83b6884f20c36…

MALICIOUS

PDF

61.1 KB Created: 2020-08-10 03:16:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 949a101673f9256799fd9be6b1024559 SHA-1: 5fd2f753fde9c275092406a46a8b90f27e9acf2b SHA-256: e0d83b6884f20c3645927f3d6cd38a863dd0b6ee60d1bc533c92f0384bbe4086
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic identifying it as a malicious redirector. The primary link, 'https://ttraff.com/pify?keyword=hydralazine+mechanism+of+action+pdf', is a known malicious redirector. Another heuristic indicates a PDF link farm, with the initial link pointing to a Shopify domain. The document body contains urgency language, suggesting a lure to encourage clicking the malicious link.

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.com/pify?keyword=hydralazine+mechanism+of+action+pdf
    • http://files.twobeinchili.com/uploads/1/3/1/4/131438443/1337635.pdf
    • http://files.iwasasleddog.com/uploads/1/3/1/0/131070993/loluzijuwexuje.pdf
    • http://files.kahua-ranch.com/uploads/1/3/1/8/131858975/mifivinusujeges-botijisori-zixemobexubes-rovotojinusax.pdf
    • http://files.a1moments.com.au/uploads/1/3/1/4/131407148/f1cb1e3ca65cf3.pdf
    • https://cdn.shopify.com/s/files/1/0440/1581/2773/files/jasipib.pdf
    • https://cdn.shopify.com/s/files/1/0431/1220/2389/files/similarities_between_andragogy_and_pedagogy.pdf
    • https://cdn.shopify.com/s/files/1/0432/3213/3278/files/28292451333.pdf
    • https://cdn.shopify.com/s/files/1/0428/8079/4780/files/feral_tiefling_5e.pdf
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/83253986297.pdf
    • https://cdn.shopify.com/s/files/1/0434/7405/9430/files/28592519691.pdf
    • https://cdn.shopify.com/s/files/1/0441/1329/7560/files/vedutajufurijekutifidena.pdf
    • https://cdn.shopify.com/s/files/1/0431/8747/0496/files/gijamulikut.pdf
    • https://cdn.shopify.com/s/files/1/0428/3337/9487/files/functional_programming_languages.pdf
    • https://cdn.shopify.com/s/files/1/0433/9033/7182/files/breast_cancer_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/1560/2339/files/20527929618.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_off0000961a.bin
2fd3b8e54d82ab68e006f82d38a696869e34dc2592e97efe98b900a53f4f5ad8
pdf-font-stream PDF embedded font (sfnt) at offset 0x961A 5508 bytes
font_01_sfnt_off0000a8bf.bin
23a4936b6e398b895735d72f3f9f53ba580ad14311a3db7c51da6c888b525397
pdf-font-stream PDF embedded font (sfnt) at offset 0xA8BF 11484 bytes
font_02_sfnt_off0000d000.bin
298a059a47d04402a822539650cb20f422186273fa20e8de9e2ef64d066f24e9
pdf-font-stream PDF embedded font (sfnt) at offset 0xD000 16160 bytes