Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb7e7b465ade805c…

MALICIOUS

PDF

55.3 KB Created: 2020-08-18 23:41:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7df8e8aa9a1f2bca075a4b88e1513837 SHA-1: 2ed4c91a1dd2293bf16e0655a8c792e68cb12b14 SHA-256: bb7e7b465ade805cfedbe1f4585cb56ca908a13fa4881d1e078e36edb4c8afbc
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Whatsapp plus mod apk' and the same malicious URL, indicating a lure to trick users into clicking the link. The PDF also hosts a large number of external links, many pointing to Shopify domains, suggesting a link farm for SEO poisoning or to obscure the malicious redirector.

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.com/pify?keyword=whatsapp+plus+mod+apk+abo+sadam
    • http://files.vigocountycrimevictimassistance.com/uploads/1/3/0/9/130969562/boxepebesazelumef.pdf
    • http://wupupop.craftimports.us/uploads/1/3/0/8/130874426/tekonaweluvitusolo.pdf
    • http://files.whereintheworldisjenniferlynn.com/uploads/1/3/0/7/130776321/dabegodaperef.pdf
    • https://cdn.shopify.com/s/files/1/0427/4801/8855/files/70320842604.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pegumi.pdf
    • https://cdn.shopify.com/s/files/1/0444/6945/2967/files/spider_man_theme_song_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0429/1444/7519/files/free_scrabble_game_for_ipad_2.pdf
    • https://cdn.shopify.com/s/files/1/0431/0669/7367/files/oster_xl_digital_convection_oven.pdf
    • https://cdn.shopify.com/s/files/1/0432/6657/2443/files/tukulanadowi.pdf
    • https://cdn.shopify.com/s/files/1/0432/6716/2276/files/90474024962.pdf
    • https://cdn.shopify.com/s/files/1/0430/8133/4933/files/exalted_broken_winged_crane.pdf
    • https://cdn.shopify.com/s/files/1/0430/6495/0945/files/95994912843.pdf
    • https://cdn.shopify.com/s/files/1/0437/8807/5159/files/how_to_upload_projects_to_github.pdf
    • https://cdn.shopify.com/s/files/1/0429/4439/7471/files/zurutitujudaxixufewide.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_off00007685.bin
e23f52c159dba8391a5dfdd75df0b54b2fb3517d66f1011a70f43c0d87d3a6b8
pdf-font-stream PDF embedded font (sfnt) at offset 0x7685 5320 bytes
font_01_sfnt_off0000887e.bin
fc4021e369c7333a3e2698b65512cd5ca33aa0a3949f6c925ad90d66ca89f0ce
pdf-font-stream PDF embedded font (sfnt) at offset 0x887E 2528 bytes
font_02_sfnt_off000093af.bin
5e742671fd3e70395ed54537ddd9db6419ae0797628fffc1253812751a07a6fd
pdf-font-stream PDF embedded font (sfnt) at offset 0x93AF 10604 bytes
font_03_sfnt_off0000b7f0.bin
1a2cef344135cdcc96c5e1f54e34dedc508871894fe74269a84f378fcf36fd5f
pdf-font-stream PDF embedded font (sfnt) at offset 0xB7F0 16392 bytes