Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e9411d6fc44a5e6…

MALICIOUS

PDF

47.8 KB Created: 2020-08-09 09:01:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c5318ad46c14badc603491e0ab4679d8 SHA-1: 6e2835eac1851205daef8d0c60f6900f4b13ebd6 SHA-256: 2e9411d6fc44a5e6d8ab51351e97f1f7de83f1aec7131cecee8eba72e64641a6
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic identifying a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=export+html+to+pdf+linux'. The document also includes a visual download button lure, suggesting an attempt to trick the user into clicking the malicious link. The presence of numerous links, including a link farm, further supports a malicious intent to redirect users to potentially harmful content.

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.com/pify?keyword=export+html+to+pdf+linux
    • http://files.actinsurance.net/uploads/1/3/1/6/131637362/0b2da.pdf
    • http://files.leemlizzyonline.com/uploads/1/3/2/6/132681415/9360523.pdf
    • http://rigibu.alexiathedoula.com/uploads/1/3/0/9/130969352/fajetezurodifi-jorimudozep.pdf
    • http://xomigop.ccmplbca.com/uploads/1/3/2/6/132681352/33faebf916.pdf
    • http://files.rodolfoangeloni.net/uploads/1/3/0/7/130775762/deseko-rukusib-legem.pdf
    • https://cdn.shopify.com/s/files/1/0432/9232/8104/files/8321013720.pdf
    • https://cdn.shopify.com/s/files/1/0436/3934/1216/files/77125153053.pdf
    • https://cdn.shopify.com/s/files/1/0432/5248/2208/files/87696930935.pdf
    • https://cdn.shopify.com/s/files/1/0429/8643/8807/files/tagutifo.pdf
    • https://cdn.shopify.com/s/files/1/0434/8415/1974/files/numerical_mathematics_and_computing_solutions_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/1806/7876/files/bubaxo.pdf
    • https://cdn.shopify.com/s/files/1/0438/9430/9019/files/33754206601.pdf
    • https://cdn.shopify.com/s/files/1/0436/8351/2473/files/56352019690.pdf
    • https://cdn.shopify.com/s/files/1/0432/8374/2884/files/33606919583.pdf
    • https://cdn.shopify.com/s/files/1/0430/5797/1362/files/list_of_composite_numbers.pdf
    • https://cdn.shopify.com/s/files/1/0433/0166/6969/files/gusifitevafigaxagudof.pdf
    • https://cdn.shopify.com/s/files/1/0427/9736/7452/files/chemistry_notes_for_class_12_cbse_solid_state.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006566.bin
0dcadf42b17d9e986f12f03fbac174b4d400284a3416a692679ee0dea1bcc11b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6566 4684 bytes
font_01_sfnt_off00007515.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
pdf-font-stream PDF embedded font (sfnt) at offset 0x7515 1800 bytes
font_02_sfnt_off00007da2.bin
f95a366544d47e7fca157cd4e2fd5083c4d7ce411075262defdea558a31470c7
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA2 11196 bytes
font_03_sfnt_off0000a3e3.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xA3E3 4324 bytes