MALICIOUS — 6a1976df634f5008dc5bcc953463e06d44adda853523008c8c192ed9e1668734
MALICIOUS — 6a1976df634f5008dc5bcc953463e06d44adda853523008c8c192ed9e1668734 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the FlyAgent family. 9 of 55 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
6a1976df634f5008dc5bcc953463e06d44adda853523008c8c192ed9e1668734 - SHA-1:
e6557e6d047ee1c6badfb699c408504199c4abe8 - MD5:
110f462f69e7ca6ec94b3285d6f512f8 - imphash:
849e8bf8b1e9307e9329d6a6a08d455f - ssdeep:
12288:yf+rPX3b9B3wFOlUip/CiJuwJEF0z8IaTVTcSuHJj:E6bvJUip/CiJp6h9uRj - TLSH:
T1374D230C51B2909FFA5A04B961A039FF9C12D818A6EF4694C3D8D22AFB5D17F2815333 - Submitted as: 6a1976df634f5008dc5bcc953463e06d44adda853523008c8c192ed9e1668734
- File type: pe · Size: 579808 bytes
- Verdict: malicious (99/100) · Family: FlyAgent
Detections (9 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): UPX
- ClamAV (daily): Win.Malware.FlyAgent-9850229-1
- YARA: delivr.to detections: DLV_ISO_IMG_Container_Lure
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- Detect It Easy (packer/type): DIE:Microsoft Linker
- LIEF (executable format parser): lief:invalid-authenticode
- Microsoft Defender: Trojan:Win32/QQPass!pz
- Emsisoft (Emergency Kit): Generic.Dacic.4803.7036E319
- Kaspersky (KVRT): HEUR:Trojan.VBS.Agent.gen
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 11 weighted signals:
- ClamAV (daily) flagged Win.Malware.FlyAgent-9850229-1 (rule
Win.Malware.FlyAgent-9850229-1) - engine signal, weight 0.90, confidence 0.95 - Contacted 21 external host(s) at runtime (16 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497.001 - dynamic signal, weight 0.40, confidence 0.75
- YARA: delivr.to detections flagged DLV_ISO_IMG_Container_Lure (rule
DLV_ISO_IMG_Container_Lure) - engine signal, weight 0.35, confidence 0.70 - YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule
JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70 - Detect It Easy (packer/type) flagged DIE:Microsoft Linker (rule
DIE:Microsoft Linker) - 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 - Embedded network infrastructure: http://sf.symcb.com/sf.crl0a, https://d.symcb.com/rpa0, http://sf.symcb.com/sf.crt0 - static signal, weight 0.35, confidence 0.60
- communicate over HTTP (rule
communicate over HTTP) - capa signal, weight 0.30, confidence 0.60 - Packing/obfuscation: UPX, high-entropy-sections:UPX1, 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
Dynamic analysis (windows)
10669 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
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
- settings-win.data.microsoft.com
- www.msn.com
Dropped files
- C:\Users\analyst\AppData\Roaming\Microsoft\tsk_9977f555140b4b82.exe -
70035f2201a3777e32734ad399a2a7d860d98e6f6161a2cbde9a83e17f0200f9 - C:\Users\analyst\AppData\Roaming\Microsoft\VBS3.vbs -
3092601f190a614feb83693a910392b40a0c60071a468471b4744fa3a913b724 - e37468c9307d19bd65930dd9353524b538390f400b1f38785d561c412d6917e7 -
e37468c9307d19bd65930dd9353524b538390f400b1f38785d561c412d6917e7
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
- https://www.verisign.com/rpa
- http://sf.symcb.com/sf.crl0a
- https://d.symcb.com/rpa0
- http://sf.symcb.com/sf.crt0
- https://www.verisign.com/cps0*
- https://www.verisign.com/rpa0
- http://logo.verisign.com/vslogo.gif04
- http://crl.verisign.com/pca3-g5.crl04
- http://sv.symcb.com/sv.crl0a
- http://sv.symcb.com/sv.crt0
- http://www.symauth.com/cps0
- http://www.symauth.com/rpa00
- http://s1.symcb.com/pca3-g5.crl0
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787865376&P2=404&P3=2&P4=SIvQpbTc9%2bTL3uMDeMeELY5dScBHLSd4xx%2fTCFG07ppe4Q9PXKDOl7gjcl05aDmAdpi2g1wgsi5frqn%2bNY51aQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- crl.thawte.com
- ts-aia.ws.symantec.com
- ts-crl.ws.symantec.com
- www.verisign.com
- sf.symcb.com
- d.symcb.com
- logo.verisign.com
- crl.verisign.com
- sv.symcb.com
- www.symauth.com
- s1.symcb.com
Embedded IP addresses
- 40.79.197.34
- 20.42.179.192
- 20.247.184.142
- 4.230.171.124
- 74.179.77.204
- 74.178.240.51
- 20.50.201.206
- 52.123.129.14
- 20.112.250.133
- 162.159.142.9
- 52.123.128.14
- 135.233.45.221
- 52.123.252.236
- 172.178.240.161
- 92.223.78.30
- 203.26.79.13
- 20.165.94.46
- 52.148.114.188
- 72.154.7.113
- 52.110.12.25
- 52.110.12.30
File paths
- F:\@hp1
- C:\Programi\
- C:\WINDOWS
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report