Malicious PDF — malware analysis report

Static analysis result for SHA-256 be103dda01b9ed82…

MALICIOUS

PDF

35.4 KB Created: 2020-08-09 20:44:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b33f077ee47662a81b6c4932b0fab486 SHA-1: c76cb17b50ed65bf959ef9594a440526c074be1c SHA-256: be103dda01b9ed82da4e2d52d1b41bffba04373a79db65eff45dd752f9a3fb84
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lure users into malicious sites. The document body, though heavily obfuscated, contains text related to 'psychological assessment pdf by kaplan' and the malicious URL, suggesting a social engineering lure. The PDF also hosts a large number of external links, many pointing to shopify.com, which is a common tactic for SEO poisoning to drive traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=psychological+assessment+pdf+by+kaplan
    • http://webuv.jciparma.com/uploads/1/3/1/4/131408027/gebisaxotivixo.pdf
    • http://files.umdwrfc.com/uploads/1/3/1/4/131482941/8209921.pdf
    • http://files.nartica.org/uploads/1/3/1/4/131406781/tiginiw-moneduwet-javaku.pdf
    • https://cdn.shopify.com/s/files/1/0435/4146/3189/files/46966559173.pdf
    • https://cdn.shopify.com/s/files/1/0429/2666/9987/files/github_reset_hard.pdf
    • https://cdn.shopify.com/s/files/1/0432/5815/1070/files/33851524351.pdf
    • https://cdn.shopify.com/s/files/1/0431/4995/1138/files/bovuzuneworotekusijiminuv.pdf
    • https://cdn.shopify.com/s/files/1/0431/2278/6466/files/eclipse_ide_c.pdf
    • https://cdn.shopify.com/s/files/1/0433/1828/0357/files/19305471416.pdf
    • https://cdn.shopify.com/s/files/1/0441/4518/0824/files/59799338898.pdf
    • https://cdn.shopify.com/s/files/1/0436/1791/0941/files/55423581853.pdf
    • https://cdn.shopify.com/s/files/1/0427/9320/5916/files/wipikefamibidagixo.pdf
    • https://cdn.shopify.com/s/files/1/0437/1218/4474/files/92854242654.pdf
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/gotamexoxupi.pdf
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/58175136423.pdf
    • https://cdn.shopify.com/s/files/1/0435/0545/1160/files/cd4049_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/8266/9464/files/duxofawepoj.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_off00004bed.bin
45731621140029e11a08c99b40b1859f445d6944003fc15b43e612d61beb2e60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BED 5780 bytes
font_01_sfnt_off00005f82.bin
df4e5b9739ef86d3f3875f0b4f15e792161300bffda4d792bd647f63a49cbd1e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F82 9704 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.