Malicious PDF — malware analysis report

Static analysis result for SHA-256 a37f65aad14ab355…

MALICIOUS

PDF

74.2 KB Created: 2021-03-04 06:08:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 161a07e2545fc28b7a2fc6f3ec628243 SHA-1: 7fb5b3ad051b9c9691865f3e276dc2b83b6ca551 SHA-256: a37f65aad14ab35554a936f7ac8eb94ada55b233c93306b83f5ca29258db906e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a URL that appears to be a lure for game-related cheats or hacks. While no scripts were explicitly extracted, the presence of external URIs and the nature of the detection suggest it's designed to redirect users to malicious sites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://bologen.ru/wix?keyword=hill+climb+racing+2+hacked+unblocked
    • https://cdn.sqhk.co/noneniwetav/RighdDT/alien_warehouse_skateboards.pdf
    • https://kutabafimuv.weebly.com/uploads/1/3/1/3/131379381/nuzowovopimi-juteba.pdf
    • http://xejopegig.mypressonline.com/45747630995.pdf
    • https://lanulizuxuja.weebly.com/uploads/1/3/4/6/134658029/jitanuk.pdf
    • http://hangzhoumetal.ru/best_lock_lockpickinglawyerygxal.pdf
    • https://ginubeputugexow.weebly.com/uploads/1/3/0/7/130738710/ce0ee166c7e437.pdf
    • https://cdn.sqhk.co/bivaxijo/4atjygi/75506103588.pdf
    • http://masterpowerpoint.com/roguelands_crafting_guidet4d3e.pdf
    • https://cdn.sqhk.co/diratukuz/9v3jgao/deboduvivoso.pdf
    • https://dugufenejoropez.weebly.com/uploads/1/3/0/7/130775504/pidomuveb.pdf
    • https://velazidolis.weebly.com/uploads/1/3/0/9/130969689/goxonefijogisufotix.pdf
    • https://palanufijerovas.weebly.com/uploads/1/3/0/7/130739221/8936090.pdf
    • https://cdn.sqhk.co/kafufojugure/bEiigiq/playmobil_luxury_mansion_apk_mod.pdf
    • https://nosuzodudoj.weebly.com/uploads/1/3/4/5/134588086/8641167.pdf
    • https://kevelowomovozi.weebly.com/uploads/1/3/4/0/134012304/7157559.pdf
    • https://cdn.sqhk.co/suxujaba/jhhfIBk/origami_tall_rectangle_box.pdf
    • https://kobuzonoge.weebly.com/uploads/1/3/1/4/131452837/sugufegafekukevexe.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e61a.bin
fd8458837049bc8c40fc8d9fd884a8e606e136fa889d18cc963e1f39a314e9ae
pdf-font-stream PDF embedded font (sfnt) at offset 0xE61A 5472 bytes
font_01_sfnt_off0000f881.bin
1dac98950ce835a28e274709c67051ecc720f0da20020891f7413d128508a341
pdf-font-stream PDF embedded font (sfnt) at offset 0xF881 10208 bytes