Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6cfa5041e703457…

MALICIOUS

PDF

45.3 KB Created: 2020-08-20 18:39:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 633c0522832ccc7951a6426670dc73a4 SHA-1: 519a17f13aed654cda32513de4e04057b04629fc SHA-256: c6cfa5041e703457628ebb6c4833238aa7c654948f53f0fa8c0ac7158951361b
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download button, aiming to trick the user into navigating to a malicious site. The document body, though heavily corrupted, contains text related to a 'fake car insurance certificate template' and the malicious URL. The PDF also exhibits characteristics of a link farm, with numerous embedded links pointing to external resources.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=fake+car+insurance+certificate+template
    • http://minejol.accesswellnessga.com/uploads/1/3/0/8/130814328/994903d.pdf
    • http://buduk.washi-art.net/uploads/1/3/0/7/130776106/9466592.pdf
    • http://zibor.alexanderashby.com/uploads/1/3/0/9/130969959/mewukivozefagu.pdf
    • http://files.crfvirginia.com/uploads/1/3/0/8/130874266/negemawe_dadifamelenof_fasono_mijanamu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/surorut.pdf
    • https://cdn.shopify.com/s/files/1/0431/6705/6028/files/62875936153.pdf
    • https://cdn.shopify.com/s/files/1/0444/1748/2919/files/aotus_lemurinus.pdf
    • https://cdn.shopify.com/s/files/1/0428/8380/9443/files/gradient_of_logistic_regression.pdf
    • https://cdn.shopify.com/s/files/1/0432/1184/9892/files/get_angle_between_two_points.pdf
    • https://cdn.shopify.com/s/files/1/0431/8016/3232/files/juwotitesejivugorax.pdf
    • https://cdn.shopify.com/s/files/1/0430/7573/1616/files/fitepab.pdf
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/bavar.pdf
    • https://cdn.shopify.com/s/files/1/0429/8758/5699/files/71037967446.pdf
    • https://cdn.shopify.com/s/files/1/0437/3712/0933/files/wodutupukaxonamuxaxode.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gobobuxewinunegurugita.pdf
    • https://cdn.shopify.com/s/files/1/0434/4214/3397/files/fowetukilisinefil.pdf
    • https://cdn.shopify.com/s/files/1/0431/4536/3616/files/wapking_hd_video_songs_2019.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_off00006794.bin
57ece6040d2dbe00cc71791c523d5b4f9bddb86f7feac3494b9197335f5a49f0
pdf-font-stream PDF embedded font (sfnt) at offset 0x6794 4952 bytes
font_01_sfnt_off00007854.bin
b589f2fd552702368657c5d6d92e41494fb440e0375f02e8ad4cb6d716b1d71c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7854 9732 bytes
font_02_sfnt_off0000999b.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x999B 4324 bytes