Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cb58f1cedfe7993…

MALICIOUS

PDF

40.7 KB Created: 2020-08-06 07:17:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e41b06a15be4cfac88eb10355ff1f80 SHA-1: 5af734589c9ce3abd2cd7ec13714793134c38f5c SHA-256: 1cb58f1cedfe7993c5cc84e3d1453852ef5699d0f6f1fa44f8c8fc6bd62c53a5
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm for SEO manipulation. One prominent link, 'https://ttraff.ru/pify?keyword=vedic+astrology+free+books+pdf', redirects to known malicious infrastructure. This indicates the document is likely a lure to drive traffic to malicious sites, potentially 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=vedic+astrology+free+books+pdf
    • http://files.ruthbeachink.com/uploads/1/3/1/6/131606492/selaxa-kesur-naligevi-mojewogufid.pdf
    • http://files.theloveshanghai.com/uploads/1/3/2/6/132682204/wuvotufono-folozafaguzosu-fusokobubiluxit.pdf
    • http://milat.adamcares.com/uploads/1/3/0/8/130814411/f77cf.pdf
    • http://files.teddingtonbowlsclub.org/uploads/1/3/0/7/130740232/taxevuvadix.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/meragavafeduxilaxopuxaw.pdf
    • https://cdn.shopify.com/s/files/1/0437/8984/4641/files/53977992586.pdf
    • https://cdn.shopify.com/s/files/1/0430/9689/9745/files/bojuzatajanaz.pdf
    • https://cdn.shopify.com/s/files/1/0439/2160/4763/files/80817765307.pdf
    • https://cdn.shopify.com/s/files/1/0429/6579/4965/files/61085661686.pdf
    • https://cdn.shopify.com/s/files/1/0432/8210/4478/files/itunes_64_bit_latest_version.pdf
    • https://cdn.shopify.com/s/files/1/0429/0904/0803/files/37861579708.pdf
    • https://cdn.shopify.com/s/files/1/0428/3911/3895/files/betuvurovabubobapa.pdf
    • https://cdn.shopify.com/s/files/1/0431/8714/2818/files/rawut.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9361/files/joxibewujonugunamu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0659/0104/files/nukifevujiforagufen.pdf
    • https://cdn.shopify.com/s/files/1/0432/1958/3133/files/tekafitego.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_off00005394.bin
78c08841583b137f1f6f466e4970075a4621bfe14f22947bd0b9eac6a889fd5f
pdf-font-stream PDF embedded font (sfnt) at offset 0x5394 5276 bytes
font_01_sfnt_off000065a2.bin
98a2d803974386360e4f706c9e3556f58792f045939c7da42ecad10875ce22d6
pdf-font-stream PDF embedded font (sfnt) at offset 0x65A2 10044 bytes
font_02_sfnt_off000087fe.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x87FE 4324 bytes