Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6398a5b9554fd2a…

MALICIOUS

PDF

42.7 KB Created: 2020-08-01 22:32:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0593621b5a793f1f54e104fee9c5ca59 SHA-1: 89dc695feec58ba37a1ec6675f58730b86ce6bca SHA-256: d6398a5b9554fd2ac2b8896f4225b7f38801ce46900c3eef1913fde3458070bf
140 Risk Score

Malware Insights

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

The PDF file contains a link farm and a malicious redirector, indicating an attempt to drive traffic to malicious infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a repair manual, which is a common tactic for phishing or malware delivery. The presence of a malicious redirector and a link farm strongly suggests the intent is to compromise the user through a malicious website.

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.ru/pify?keyword=1998+buick+lesabre+repair+manual+pdf
    • http://files.34-24-36.com/uploads/1/3/1/8/131871484/buluvupufadubar_dexibux.pdf
    • http://files.himleyandswindonchurches.org/uploads/1/3/1/6/131637658/1934828.pdf
    • http://files.anniebeautyspa.com/uploads/1/3/2/6/132680860/2083561.pdf
    • http://files.triedandtruegranola.com/uploads/1/3/2/6/132681579/nefiwigamiw.pdf
    • https://cdn.shopify.com/s/files/1/0431/9451/5614/files/betemefamixiku.pdf
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/62045895247.pdf
    • https://cdn.shopify.com/s/files/1/0434/1753/4629/files/mufodipolazofefeganimo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6057/5894/files/paruwofizefarinevifu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2127/9138/files/xovumobota.pdf
    • https://cdn.shopify.com/s/files/1/0428/3459/1907/files/wosoj.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/tities_and_vagina.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tipibag.pdf
    • https://cdn.shopify.com/s/files/1/0434/0049/5260/files/podeziwakidaxazejolopifu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6349/9159/files/ludibitisejuvilutudasizoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/1855/9393/files/mezokasi.pdf
    • https://cdn.shopify.com/s/files/1/0434/1576/5153/files/hallelujah_lyrics_alexandra_burk.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_off000067ca.bin
d2f75cbce2bffa53f648b9a117a3ec385d01d6314ac13174a6e148ca8b342ca7
pdf-font-stream PDF embedded font (sfnt) at offset 0x67CA 5812 bytes
font_01_sfnt_off00007b7d.bin
d530b098337ca25309475d25669f1e1b7cc37d1e48c2af08a81606e3db4002b1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7D 9968 bytes