Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb38137fe8247069…

MALICIOUS

PDF

47.1 KB Created: 2020-08-28 15:59:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2e522c05b3f5d7f59fbd38a7908b5027 SHA-1: 17b9c3dc4f0753d1a813bbc1765b05601ce008c5 SHA-256: fb38137fe8247069128d92ba6ee570a910ceb5668c5e092de02c9f331a37d14a
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of embedded URLs, with a critical heuristic firing indicating a link farm pointing to a known malicious redirector. The presence of the URL 'https://ttraff.cc/pify?keyword=aflac+magician+commercial' suggests an attempt to lure users to malicious content, potentially for phishing or malware distribution. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the sheer volume of links and the use of a redirector are strong indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.cc/pify?keyword=aflac+magician+commercial
    • http://files.dissertationindia.org/uploads/1/3/1/3/131380440/feguzos.pdf
    • http://valivu.tppc.org/uploads/1/3/0/7/130740178/mexefar-dovafoxexamo-sudexe.pdf
    • http://paruwaxe.pagemusicale-lfs.com/uploads/1/3/1/4/131407267/c8ddb.pdf
    • http://files.campcedarwood.org/uploads/1/3/1/4/131453193/42d678e4da5f9.pdf
    • http://files.friendsofwadifoquin.com/uploads/1/3/0/7/130740018/poburad_ripizo_wusowesaw_tidepoxide.pdf
    • https://cdn.shopify.com/s/files/1/0435/3395/9327/files/pathophysiology_bodhankar.pdf
    • https://cdn.shopify.com/s/files/1/0433/4115/2421/files/used_vehicle_information_package_ontario.pdf
    • https://cdn.shopify.com/s/files/1/0436/4884/3934/files/tiwesogekidumuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7872/files/62486965956.pdf
    • https://cdn.shopify.com/s/files/1/0434/7432/1560/files/20699046418.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/xavekirigaluxadipuvoj.pdf
    • https://cdn.shopify.com/s/files/1/0436/1905/7826/files/21160823140.pdf
    • https://cdn.shopify.com/s/files/1/0430/3467/3305/files/desoxelixujuzifonen.pdf
    • https://cdn.shopify.com/s/files/1/0437/6929/9098/files/lisamem.pdf
    • https://cdn.shopify.com/s/files/1/0431/8583/2096/files/78858497727.pdf
    • https://cdn.shopify.com/s/files/1/0461/9173/9033/files/19951202643.pdf
    • https://cdn.shopify.com/s/files/1/0432/3826/0898/files/mcdonalds_training_manual_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/2230/3911/files/54605367350.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_off00006545.bin
aedf20fc8657b46c02d6fb8fa5ddcbcd710f3dd73fb262f4e4a6b4eec3b05ec2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6545 5012 bytes
font_01_sfnt_off0000763c.bin
3a95281a14500937d10b3c1942891405442383f42b8a4bc615844d0cccfc4242		 pdf-font-stream PDF embedded font (sfnt) at offset 0x763C 10252 bytes
font_02_sfnt_off0000999e.bin
0865ea5686e30d19842a941efae749c2e92da649021023aa876fc32c67f43dd0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x999E 16232 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.