MALICIOUS — fd3c5657c9aa54c50ee004a1e870a35261c2035a430f9bf4481047c4d7f56d08

MALICIOUS — fd3c5657c9aa54c50ee004a1e870a35261c2035a430f9bf4481047c4d7f56d08 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the AutoRun family. 5 of 56 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: fd3c5657c9aa54c50ee004a1e870a35261c2035a430f9bf4481047c4d7f56d08
• SHA-1: fb13be50ad23f02f11547f5357d6a82a08ae8898
• MD5: a9c25d742479650f64244e6dfd44d431
• imphash: 403f7818ea58345ded632cf7b4721f30
• ssdeep: 24576:JiL2B/0sDOPXcRrxmN3lYrnk5+PIGpkLOBc2XkmqEKP6AjVrItgcSNk0DD//op1:4FsDOP8xmN3Aek03noj45wlDT
• TLSH: T1AB548E8C4B17BB4FE6E7D7105CB04E5DA0A2F9E9327E194C1643C12F36AA42725052AF
• Submitted as: fd3c5657c9aa54c50ee004a1e870a35261c2035a430f9bf4481047c4d7f56d08
• File type: pe · Size: 1158500 bytes
• Verdict: malicious (99/100) · Family: AutoRun

Detections (5 of 56 engines)

• ClamAV (daily): Win.Trojan.Bulz-9865941-0
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• YARA: Yara-Rules community: YR_AntiDebug_Checks
• LIEF (executable format parser): lief:invalid-authenticode
• Kaspersky (KVRT): Worm.Win32.AutoRun.vx

MITRE ATT&CK

• T1547.001
• T1071.001

Why this verdict

The malicious score of 99/100 is the fusion of 10 weighted signals:

• ClamAV (daily) flagged Win.Trojan.Bulz-9865941-0 (rule Win.Trojan.Bulz-9865941-0) - engine signal, weight 0.90, confidence 0.95
• Kaspersky (KVRT) flagged Worm.Win32.AutoRun.vx (rule Worm.Win32.AutoRun.vx) - engine signal, weight 0.55, confidence 0.85
• YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.60, confidence 0.70
• Contacted 3 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
• YARA: Yara-Rules community flagged YR_AntiDebug_Checks (rule YR_AntiDebug_Checks) - engine signal, weight 0.35, confidence 0.70
• LIEF (executable format parser) flagged lief:invalid-authenticode (rule lief:invalid-authenticode) - engine signal, weight 0.35, confidence 0.70
• persist via registry run key (rule persist via registry run key) - capa signal, weight 0.35, confidence 0.60
• Embedded network infrastructure: http://www.symauth.com/cps0, http://www.symauth.com/rpa04, http://www.symauth.com/cps09 - static signal, weight 0.35, confidence 0.60
• communicate over HTTP (rule communicate over HTTP) - capa signal, weight 0.30, confidence 0.60
• Memory forensics: 5 finding(s) elsewhere in the guest, not attributed to this sample, e.g. RWX/private injected region in SppExtComObj.E (pid 5720) (rule windows.malfind.Malfind) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

0 behavior events · 0 ATT&CK techniques · 0 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• update.googleapis.com
• login.live.com
• desktop-hsgcbep
• v20.events.data.microsoft.com
• licensing.mp.microsoft.com
• config.edge.skype.com
• windows.msn.com
• www.msn.com
• officeclient.microsoft.com
• odc.officeapps.live.com
• assets.msn.com
• www.bing.com
• th.bing.com
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Embedded URLs

• http://crl.thawte.com/ThawteTimestampingCA.crl0
• http://ts-aia.ws.symantec.com/tss-ca-g2.cer0
• http://ts-crl.ws.symantec.com/tss-ca-g2.crl0
• http://crl.verisign.com/pca3.crl0
• https://www.verisign.com/cps0
• http://logo.verisign.com/vslogo.gif04
• http://www.symauth.com/cps0
• http://www.symauth.com/rpa04
• http://crl.verisign.com/pca3-g5.crl0
• http://www.symauth.com/cps09
• http://evcs-crl.ws.symantec.com/evcs.crl0
• http://evcs-aia.ws.symantec.com/evcs.cer0
• https://github.com/dotnet/corefx/tree/8136b3dd606b08acc749645401fdf719b7c5e05c
• http://www.microsoft.com/pki/certs/MicrosoftTimeStampPCA.crt0
• http://www.microsoft.com/pki/certs/MicCodSigPCA_08-31-2010.crt0
• http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl0T
• http://office.microsoft.com/0
• http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt0
• http://www.microsoft.com/pki/certs/MicTimStaPCA_2010-07-01.crt0
• http://watson.microsoft.com/dw/dcp.asp
• http://watson.microsoft.com/dw/watsoninfo.asp
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Embedded domains

• crl.thawte.com
• ts-aia.ws.symantec.com
• ts-crl.ws.symantec.com
• crl.verisign.com
• www.verisign.com
• logo.verisign.com
• www.symauth.com
• evcs-crl.ws.symantec.com
• evcs-aia.ws.symantec.com
• github.com
• crl.microsoft.com
• www.microsoft.com
• office.microsoft.com
• watson.microsoft.com
• microsoft.com
• msn.com

Embedded IP addresses

• 1.1.5.131
• 5.1.5.131
• 4.150.223.108
• 52.230.60.54
• 4.230.171.124
• 104.18.33.89
• 52.110.12.18
• 52.110.12.30

Registry keys

• HKCU\Software
• HKCU\Software\Policies
• HKLM\Software
• HKLM\Software\Policies
• HKCU\Software\Microsoft\Shared\OfficeUILanguage
• HKLM\Software\Microsoft\Windows
• HKLM\Software\Microsoft\Office\11.0\Registration

File paths

• P:\Target\x86\ship\dw\x-none\dw20.pdb
• T:\:d:l:t:
• X:\:l:p:t:x:

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report