Malicious PDF — malware analysis report

Static analysis result for SHA-256 d08595ab5a844dfd…

MALICIOUS

PDF

53.5 KB Created: 2020-08-02 07:06:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c47bb510a46847bde2c2c9019214116 SHA-1: 32e2f4e66ad85a0526b0b706af0b82dbef98bed0 SHA-256: d08595ab5a844dfdf1c4fc8afaf202bbf41250c5cded24c99b4a25f511ac548f
160 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.ru) known to host malicious content. While some links lead to benign Shopify-hosted PDFs, the presence of the redirector and the overall structure suggest a phishing or scam attempt. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates that the document may be intended to trick users into believing they need a password to access content, a common tactic in social engineering attacks.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=http+filesify+com+wr6jfm
    • http://files.carsontidwell.com/uploads/1/3/1/4/131438249/mumiv.pdf
    • http://files.watervillefederated.com/uploads/1/3/0/7/130776562/54260891.pdf
    • http://files.soularrowentertainment.com/uploads/1/3/1/1/131164431/balojiduni.pdf
    • http://files.fabricsatfleetwood.com/uploads/1/3/0/8/130874064/7594805.pdf
    • http://files.stuarts2gabon.com/uploads/1/3/1/6/131606325/3997252.pdf
    • https://cdn.shopify.com/s/files/1/0432/0726/2367/files/babagobuxepizilixorox.pdf
    • https://cdn.shopify.com/s/files/1/0429/1313/6799/files/gukafefa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kesazemoluvumexon.pdf
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/difujirokin.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/11286786524.pdf
    • https://cdn.shopify.com/s/files/1/0431/2317/9677/files/vanenupirikanepapizuw.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/lebazape.pdf
    • https://cdn.shopify.com/s/files/1/0431/1416/8480/files/43156252145.pdf
    • https://cdn.shopify.com/s/files/1/0435/8157/1227/files/disodezezobukel.pdf
    • https://cdn.shopify.com/s/files/1/0432/2508/8168/files/62527452815.pdf
    • https://cdn.shopify.com/s/files/1/0438/2189/1746/files/juxuj.pdf
    • https://cdn.shopify.com/s/files/1/0435/7872/0414/files/11849555082.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_off00007034.bin
1743e4f75834ffaba0b2d46b2d2e87e48a81b9214b162116e20909178f976900
pdf-font-stream PDF embedded font (sfnt) at offset 0x7034 5336 bytes
font_01_sfnt_off00008269.bin
356dcafbeccb3bc40b655bfcba5e7862e0cd5faba98fc1565d6da2a84dacbc94
pdf-font-stream PDF embedded font (sfnt) at offset 0x8269 15308 bytes
font_02_sfnt_off0000b346.bin
975089639afea594160f6daa1ae948ffc4125994d61a9fd32dce02580f7b6b15
pdf-font-stream PDF embedded font (sfnt) at offset 0xB346 16312 bytes