Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
25/09/2026, 16:49
General
- Target 2026-09-25_fcf29fb70a387a5c3044a803458bae7c_cobalt-strike_glassworm.exe
- Size 5.1MB
- Sample260925-vbzlsa1enb
- SHA256 c19cad28362ad27d326c55c3d81e2fa68c52f98e3141662ed48724ffc10a3335
Malware Config
Extracted
-
cobaltstrike
-
100000000
-
http://129.150.43.163:1443/poll
-
access_type
512
-
beacon_type
2048
-
host
129.150.43.163
-
http_header1
AAAACgAAABpYLUN1c3RvbS1QU0s6IFtTT01FX1ZBTFVFXQAAAAcAAAAAAAAADQAAAAgAAAANAAAABQAAAAV0b2tlbgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
-
http_header2
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
-
http_method1
GET
-
http_method2
POST
-
polling_time
1000
-
port_number
1443
-
sc_process32
%windir%\syswow64\dllhost.exe
-
sc_process64
%windir%\sysnative\dllhost.exe
-
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCqzEJfhNRDTUWc4OFw6QgWMCgtZpCzf+4+RQGYwL9gNHEC7Oh+6fCB3hnfVWpvxm96OVnB0eWJt6P1aNkZxVZ+u6PuqrBRm+Ad5gbjYgujotq7rM44FsmQaZAp8fORER8oRJjuMN1AxEzkj0VjMXZ8LwkT+0lyLqjjmBsdJBcCWQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
-
unknown1
2.102727936e+09
-
unknown2
AAAABAAAAAEAAAACAAAAAgAAACMAAAADAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
-
uri
/upload
-
user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 Safari/537.36
-
watermark
100000000
Signatures
- Family: Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 3 IoCs
- Modifies registry class 1 IoCs
- Suspicious behavior: AddClipboardFormatListener 2 IoCs
- Suspicious use of SetWindowsHookEx 10 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-25_fcf29fb70a387a5c3044a803458bae7c_cobalt-strike_glassworm.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-25_fcf29fb70a387a5c3044a803458bae7c_cobalt-strike_glassworm.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Public\Music\cdb-capitalyu.exeC:\Users\Public\Music\cdb-capitalyu.exe zhangsanshigehaoqingnian2⤵
- Executes dropped EXE
-
-
C:\Windows\system32\cmd.execmd.exe /c start 钓鱼邮件及木马排查方法.docx2⤵
- Checks computer location settings
- Executes a command shell one-liner
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\钓鱼邮件及木马排查方法.docx" /o ""3⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
gb.xsl
钓鱼邮件及木马排查方法.docx
CUSTOM.DIC
ExcludeDictionaryEN0409.lex
fb3b0dbfee58fac8.customDestinations-ms
cdb-capitalyu.exe
memory/2080-11-0x00007FFD72690000-0x00007FFD726A0000-memory.dmp
memory/2080-480-0x00007FFD72690000-0x00007FFD726A0000-memory.dmp
memory/2080-10-0x00007FFD72690000-0x00007FFD726A0000-memory.dmp
memory/2080-14-0x00007FFD70540000-0x00007FFD70550000-memory.dmp
memory/2080-15-0x00007FFD70540000-0x00007FFD70550000-memory.dmp
memory/2080-12-0x00007FFD72690000-0x00007FFD726A0000-memory.dmp
memory/2080-9-0x00007FFD72690000-0x00007FFD726A0000-memory.dmp
memory/2080-481-0x00007FFD72690000-0x00007FFD726A0000-memory.dmp
memory/2080-482-0x00007FFD72690000-0x00007FFD726A0000-memory.dmp
memory/2080-483-0x00007FFD72690000-0x00007FFD726A0000-memory.dmp
memory/2080-13-0x00007FFD72690000-0x00007FFD726A0000-memory.dmp
memory/3048-6-0x0000020562EB0000-0x0000020562EF1000-memory.dmp
memory/3048-5-0x0000020562F00000-0x0000020563372000-memory.dmp
memory/3048-45-0x0000020562EB0000-0x0000020562EF1000-memory.dmp