Malicious PDF — malware analysis report

Static analysis result for SHA-256 5430e8f400431699…

MALICIOUS

PDF

42.2 KB Created: 2020-08-19 11:11:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5918c98ee78fb716287f82ccee179476 SHA-1: 20b21337fc1678aa413d14eee3994ad3254832a9 SHA-256: 5430e8f400431699ddbb255318b0f9ecec132756ca37d404b2d6f30f42634270
160 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the presence of a link to known malicious infrastructure. The PDF_SEO_LINK_FARM heuristic suggests the document is part of a larger SEO poisoning scheme to drive traffic to malicious sites. The SE_LOLBIN_RUN_COMMAND heuristic indicates that the document may contain instructions for executing commands, likely to facilitate the malicious redirection.

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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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=catia+generative+sheet+metal+design+tutorial+pdf
    • http://rabibeg.firstloveradio.org/uploads/1/3/1/6/131606617/rizetub.pdf
    • http://baxixi.taylororrstudio.com/uploads/1/3/1/0/131070054/dogovuxur-zofipipirib.pdf
    • https://cdn.shopify.com/s/files/1/0436/1850/0765/files/oceans_piano_chords.pdf
    • https://cdn.shopify.com/s/files/1/0432/0873/6928/files/jediwugepigidozi.pdf
    • https://cdn.shopify.com/s/files/1/0440/6896/2469/files/docker_alpine_apk_add_curl.pdf
    • https://cdn.shopify.com/s/files/1/0435/0020/8294/files/online_rent_agreement_format.pdf
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/lodibatekojewo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9430/2117/files/97603404805.pdf
    • https://cdn.shopify.com/s/files/1/0433/5904/3749/files/98588795765.pdf
    • https://cdn.shopify.com/s/files/1/0433/0595/9574/files/ropapexuvobudogulofex.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xigorekotat.pdf
    • https://cdn.shopify.com/s/files/1/0431/0315/8433/files/41234752493.pdf
    • https://cdn.shopify.com/s/files/1/0448/6764/9698/files/messenger_lite_android_5._1.pdf
    • https://cdn.shopify.com/s/files/1/0437/2817/5265/files/rizubuwiguzuvesud.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_off00006653.bin
69cebf810203c073e77c83907ef9b982fba6140531ebc0a55fdc3940add53a5a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6653 5420 bytes
font_01_sfnt_off0000789d.bin
dbf11a24d7b539d4540b06d594fc3e72b84a51f8cb50b28b27261825ba11794c
pdf-font-stream PDF embedded font (sfnt) at offset 0x789D 10432 bytes