MALICIOUS — f3c283deda1737dea158b520543e8b1b250aa666fb74615d264969650f6621f3
MALICIOUS — f3c283deda1737dea158b520543e8b1b250aa666fb74615d264969650f6621f3 is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100). 4 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
f3c283deda1737dea158b520543e8b1b250aa666fb74615d264969650f6621f3 - SHA-1:
f8a878241458035943b4acebe116d48900dd3f92 - MD5:
1704eac47a2693a99d1d8140ea29ee49 - ssdeep:
1536:I1afBt3CUgleB1cTDf5opSMZET6hLSrcP++I9WhMseaWApO6kQ/:KajCLM+Tl+Zq6hmYm+IthR6t - TLSH:
T18837CFF321A7EC8C779B9B0369FB02589146D38C1273E9A04588BA7CD57C6BE7A10C51 - Submitted as: f3c283deda1737dea158b520543e8b1b250aa666fb74615d264969650f6621f3
- File type: pdf · Size: 71960 bytes
- Verdict: malicious (98/100)
Detections (4 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- ClamAV (daily): Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
- Kaspersky (KVRT): HEUR:Hoax.PDF.Phish.gen
MITRE ATT&CK
Why this verdict
The malicious score of 98/100 is the fusion of 7 weighted signals:
- ClamAV (daily) flagged Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 (rule
Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0) - engine signal, weight 0.90, confidence 0.95 - Embedded link rated malicious by URL analysis: http://erpsamik.com/ckfinder/userfiles/files/36220771733.pdf - network signal, weight 0.70, confidence 0.80
- Contacted 15 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded network infrastructure: https://cructi.ru/uplcv?utm_term=formula+for+nth+partial+sum, http://poltinik.ru/userfiles/file/63336570509.pdf, http://bluebossa.pl/files/file/66617829761.pdf - static signal, weight 0.35, confidence 0.60
- Document active content: uri-action - static signal, weight 0.30, confidence 0.60
- Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
- Extracted generic config (20 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9678 behavior events · 0 ATT&CK techniques · 3 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- c.pki.goog
- 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 252.0.0.224.in-addr.arpa
- b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- ntp.ubuntu.com
- 250.255.255.239.in-addr.arpa
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\2c9e382a44b5eb39c8929f936dd8ec6c.png -
a237c43ef30a8acb14b4bf6061fa764aa9e81e8726055351c1e33d0217f204ff - C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
8b8e7888e5a4fc8232459844bbda3b24d5809802a7d36545f93cff6f588696ee - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://cructi.ru/uplcv?utm_term=formula+for+nth+partial+sum
- http://poltinik.ru/userfiles/file/63336570509.pdf
- http://bluebossa.pl/files/file/66617829761.pdf
- http://com123.vn/uploads/file/dilebokagejolusito.pdf
- http://goang-hann.com/uploads/files/202109111338232295.pdf
- http://wsystem.sk/userfiles/files/kilutilot.pdf
- http://dermatologomiguelgallego.com/miguel/fck/file/49780782929.pdf
- https://kolkataangikar.org/ckfinder/userfiles/files/fudaduwewodapijib.pdf
- http://erpsamik.com/ckfinder/userfiles/files/36220771733.pdf
- http://inlovehuahin.com/file_media/file_image/file/69091500517.pdf
- https://www.seblocation.com/ckfinder/userfiles/files/veruribo.pdf
- http://conflictfreeelectronics.com/ourprojects/chowki/UserFiles/renuka/file/6926730.pdf
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615151c8e0974---562455331.pdf
- https://gallerylingard.com/uploads/file/ravutatogajogikago.pdf
- http://unibox.lv/files/text/liwezifudotufub.pdf
- https://247christianity.org/fckeditor/userfiles/file/225952755101631575323.pdf
- http://papianiarch.it/userfiles/files/bupogetinapigiru.pdf
- http://kowalstwwo.pl/public/cms/images/file/69516943591.pdf
- http://trivio.it/userfiles/files/rinowoturukovufufixuf.pdf
- https://nnkcreations.com/userfiles/file/43863116912.pdf
- http://amirafouad.com/uploaded_files/file/93300724750.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613707b039892---1344579853.pdf
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/161450d4b52251---29486864262.pdf
- http://redactron.com/userfiles/file/fevorofakabipunor.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
Embedded domains
- cructi.ru
- poltinik.ru
- bluebossa.pl
- goang-hann.com
- dermatologomiguelgallego.com
- kolkataangikar.org
- erpsamik.com
- inlovehuahin.com
- www.seblocation.com
- conflictfreeelectronics.com
- mavismanagement.com
- gallerylingard.com
- 247christianity.org
- papianiarch.it
- kowalstwwo.pl
- trivio.it
- nnkcreations.com
- amirafouad.com
- www.1000ena.com
- nuregio.de
- redactron.com
- www.w3.org
- purl.org
- ns.adobe.com
- com123.vn
Embedded IP addresses
- 172.215.188.225
- 162.159.142.9
- 52.110.12.5
- 74.178.76.44
- 57.154.63.210
- 4.230.171.124
- 52.230.60.54
- 203.26.79.13
- 74.178.76.128
- 40.79.150.121
- 52.123.129.14
- 52.123.252.225
- 172.178.240.163
- 51.116.246.105
- 48.192.143.121
Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report