MALICIOUS — 6822e50461c293d06e883bf021df478dbd5628196e0ca4f61adae76674701055

MALICIOUS — 6822e50461c293d06e883bf021df478dbd5628196e0ca4f61adae76674701055 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Urelas family. 9 of 56 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

• SHA-256: 6822e50461c293d06e883bf021df478dbd5628196e0ca4f61adae76674701055
• SHA-1: 1ed566ac2442192426d921e6938934edd52690ea
• MD5: 57388969428f7b9460ba816ea01f3391
• imphash: 7caeadc02187e8816237dd529d1fe495
• ssdeep: 12288:d7dL4AkwWNk82HAEGfKKBhVGT5OY8pgA65t8mv5pThkJ8HxW0d8GYEg45:d7dLBftJLW5YUWLrkJB0PJgi
• TLSH: T16450024CC2F27385E6F753205E019E0E74E19CCED03E4D994693D22E27E295BE1E816A
• Submitted as: 6822e50461c293d06e883bf021df478dbd5628196e0ca4f61adae76674701055
• File type: pe · Size: 803519 bytes
• Verdict: malicious (100/100) · Family: Urelas

Detections (9 of 56 engines)

• MalwareAnalyser heuristics (entropy/packer): ASPack
• ClamAV (daily): Win.Malware.Urelas-9883246-0
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• YARA: Yara-Rules community: YR_Packer_ASPack_MPRESS
• Detect It Easy (packer/type): DIE:Microsoft Linker
• Microsoft Defender: flagged
• Emsisoft (Emergency Kit): Gen:Heur.Mint.SP.Urelas.1
• Trellix Stinger (McAfee): Corrupt-FY!57388969428F
• Kaspersky (KVRT): Backdoor.Win32.Plite.bhtx

MITRE ATT&CK

• T1543.003
• T1112
• T1105

Why this verdict

The malicious score of 100/100 is the fusion of 18 weighted signals:

• ClamAV (daily) flagged Win.Malware.Urelas-9883246-0 (rule Win.Malware.Urelas-9883246-0) - engine signal, weight 0.90, confidence 0.95
• Microsoft Defender flagged flagged (rule flagged) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged Gen:Heur.Mint.SP.Urelas.1 (rule Gen:Heur.Mint.SP.Urelas.1) - engine signal, weight 0.55, confidence 0.85
• Trellix Stinger (McAfee) flagged Corrupt-FY!57388969428F (rule Corrupt-FY!57388969428F) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged Backdoor.Win32.Plite.bhtx (rule Backdoor.Win32.Plite.bhtx) - 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
• Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
• Contacted 5 external host(s) and 17 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
• Anti-analysis: T1497.001, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
• Detect It Easy (packer/type) flagged DIE:Microsoft Linker (rule DIE:Microsoft Linker) - engine signal, weight 0.35, confidence 0.70
• MalwareAnalyser heuristics (entropy/packer) flagged ASPack (rule ASPack) - engine signal, weight 0.35, confidence 0.70
• YARA: Yara-Rules community flagged YR_Packer_ASPack_MPRESS (rule YR_Packer_ASPack_MPRESS) - engine signal, weight 0.30, confidence 0.70
• Embedded network infrastructure: 1.234.83.146, 133.242.129.155, 218.54.31.226 - static signal, weight 0.35, confidence 0.60
• Packing/obfuscation: ASPack, Microsoft Linker - static signal, weight 0.25, confidence 0.55
• Dropped 2 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
• Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
• Extracted generic config (3 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
• Memory forensics: 2 finding(s) elsewhere in the guest, not attributed to this sample, e.g. SSDT hook (rule windows.ssdt.SSDT) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

34471 behavior events · 2 ATT&CK techniques · 4 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• c.pki.goog
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org
• update.googleapis.com
• login.live.com
• desktop-hsgcbep
• v20.events.data.microsoft.com
• config.edge.skype.com
• windows.msn.com
• www.msn.com
• officeclient.microsoft.com
• odc.officeapps.live.com
• licensing.mp.microsoft.com
• assets.msn.com
• www.bing.com

Dropped files

• C:\Users\analyst\AppData\Local\Temp\woley.exe - 2d455004df82330e6b82e580807cb224a236761b0c26fb18055abddc545c3ee0
• C:\Users\analyst\AppData\Local\Temp\mymyb.exe - 7701891188707faa81b7a3208cbfc9a8ce9d43334c25cf2651dda6fab1619131
• C:\Users\analyst\AppData\Local\Temp\golfinfo.ini - 70c8f050acfaee8e40944d5d24afe3d99b4318ba5e1496067328c18cc6e85e55
• C:\Users\analyst\AppData\Local\Temp\gbp.ini - 30f820bb1ca6c20bcd77113c7377e01f31cdf0ec5b64864f22887d41a9bf3c7a

Embedded URLs

• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• http://c.pki.goog/r/r1.crl
• http://x2.c.lencr.org/
• http://ye.c.lencr.org/
• http://c.pki.goog/wr2/9UVbN0w5E6Y.crl
• http://yr.c.lencr.org/

Embedded domains

• x1.c.lencr.org
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org

Embedded IP addresses

• 1.234.83.146
• 133.242.129.155
• 218.54.31.226
• 218.54.31.165
• 4.150.223.103
• 4.144.132.114
• 4.230.171.124
• 172.66.2.5
• 52.110.12.22
• 52.110.12.55
• 172.178.240.161
• 184.84.165.136
• 57.155.101.212
• 72.145.35.108
• 52.148.114.188
• 52.110.12.4
• 52.110.12.38

File paths

• c:\work\Update_2005_rep\bin\release\MkRegister.pdb

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report