Malicious PDF — malware analysis report

Static analysis result for SHA-256 f942e622d0e7f0e8…

MALICIOUS

PDF

50.9 KB Created: 2020-08-13 21:45:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ed1ed2b8ef9b067715795520e30a297 SHA-1: a9130bb5bb772787a134d5dca90bd52f2a89092a SHA-256: f942e622d0e7f0e8d1cbd21ce1a0141729939f08d78748be75fc9b87af1ac38e
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, and another identified a link farm structure. The document body contains a URL that is also flagged as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious sites, likely for further exploitation or phishing.

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=arsenal+vs+fiorentina+highlights
    • http://lowut.helenfrowe.com/uploads/1/3/1/3/131383483/zapeve.pdf
    • http://xosuvaj.bonneygirlphotography.com/uploads/1/3/0/8/130813834/nidokepo.pdf
    • http://files.softcast-technology.com/uploads/1/3/0/7/130740178/1587242.pdf
    • https://cdn.shopify.com/s/files/1/0434/6249/2310/files/loving_vs_virginia_book.pdf
    • https://cdn.shopify.com/s/files/1/0432/6778/4864/files/rigituze.pdf
    • https://cdn.shopify.com/s/files/1/0433/8178/4726/files/camera_shots_and_angles_with_examples.pdf
    • https://cdn.shopify.com/s/files/1/0431/5519/4011/files/66776626708.pdf
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/zosugidigopopojutarit.pdf
    • https://cdn.shopify.com/s/files/1/0431/5866/7430/files/titigadavogekabem.pdf
    • https://cdn.shopify.com/s/files/1/0452/3976/3101/files/samsad_english_to_bengali_dictionary_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/5598/0439/files/dajavesugavasemof.pdf
    • https://cdn.shopify.com/s/files/1/0428/8803/6505/files/multivariate_analysis_notes.pdf
    • https://cdn.shopify.com/s/files/1/0430/5072/9621/files/jujitomukarotunijoz.pdf
    • https://cdn.shopify.com/s/files/1/0431/5326/0701/files/31493015079.pdf
    • https://cdn.shopify.com/s/files/1/0429/4017/0406/files/65923538277.pdf
    • https://cdn.shopify.com/s/files/1/0440/8279/0552/files/87337380322.pdf
    • https://cdn.shopify.com/s/files/1/0429/7801/7443/files/registre_bnficiaire_effectif.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_off000068eb.bin
7c918b0f4aba3e4e4c38403e38d1e4851625bfc7582fb616f1adcdaa81d4857f
pdf-font-stream PDF embedded font (sfnt) at offset 0x68EB 5080 bytes
font_01_sfnt_off00007a36.bin
0932ef0c30e9c9175897c3b00abc885cceceade6b6047ab49a87448e0a33eafe
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A36 19336 bytes
font_02_sfnt_off0000a875.bin
31aa257675234f953cb39254c73a0c002637764ec2691c470e0912636c3685cf
pdf-font-stream PDF embedded font (sfnt) at offset 0xA875 16204 bytes