Analysis
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max time kernel
127s -
max time network
136s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
15/12/2024, 22:20
Behavioral task
behavioral1
Sample
WB/libcurl.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
WB/libcurl.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
WB/茧火虫用户端 V1.0.2.exe
Resource
win7-20240903-en
General
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Target
WB/茧火虫用户端 V1.0.2.exe
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Size
2.5MB
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MD5
842af33f5702fa99efd8f7b235f28fcc
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SHA1
b841b71a4e39432f3a940ad841e74ea1686da6c9
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SHA256
82ab7bbe88c0371e2122e7ad2faa452fdedc4063c2fda36d00c011bdd3948209
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SHA512
ba78f32b344842b36ec3e5da0ca1cd80f67c18ab0537ea0d8dd970b823be9e1e48bdc0c28d5ec1666d6da22fc6b5682e99b5844ccd513a836d37158ddb0d8a82
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SSDEEP
24576:bM/RzHFf9qi5W0xSSWWECzoMuJL5KoshcfTYa6uppI1yU4AWJe5pAT0HFTLaGKfM:f6sKpETPub0J0lTuRjlH6/oPgH
Malware Config
Signatures
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resource yara_rule behavioral3/memory/2320-2-0x0000000002420000-0x00000000025D0000-memory.dmp purplefox_rootkit behavioral3/memory/2320-32-0x0000000010000000-0x0000000010212000-memory.dmp purplefox_rootkit -
Gh0st RAT payload 2 IoCs
resource yara_rule behavioral3/memory/2320-2-0x0000000002420000-0x00000000025D0000-memory.dmp family_gh0strat behavioral3/memory/2320-32-0x0000000010000000-0x0000000010212000-memory.dmp family_gh0strat -
Gh0strat family
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Purplefox family
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resource yara_rule behavioral3/memory/2320-0-0x0000000010000000-0x0000000010212000-memory.dmp vmprotect behavioral3/files/0x000c000000012260-15.dat vmprotect behavioral3/memory/2320-32-0x0000000010000000-0x0000000010212000-memory.dmp vmprotect -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\zmtrwm = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WB\\?????? V1.0.2.exe" 茧火虫用户端 V1.0.2.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 2320 茧火虫用户端 V1.0.2.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\libcurl.dll 茧火虫用户端 V1.0.2.exe File created C:\Windows\libcurl.dll 茧火虫用户端 V1.0.2.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 茧火虫用户端 V1.0.2.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeDebugPrivilege 2320 茧火虫用户端 V1.0.2.exe Token: 33 2320 茧火虫用户端 V1.0.2.exe Token: SeIncBasePriorityPrivilege 2320 茧火虫用户端 V1.0.2.exe Token: 33 2320 茧火虫用户端 V1.0.2.exe Token: SeIncBasePriorityPrivilege 2320 茧火虫用户端 V1.0.2.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\WB\茧火虫用户端 V1.0.2.exe"C:\Users\Admin\AppData\Local\Temp\WB\茧火虫用户端 V1.0.2.exe"1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2320
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
730KB
MD521c76027249d2797f7c525826443dff9
SHA1dce966f85251255d1ced14641583d14f6c94d889
SHA256b886350941b3d0c5832e6e03b1b88e562f7b27d7a81cf36895387ab319f682e9
SHA512dba30e2c765445f2c7b56f07450b336df3ba696b51b2c3e6be88bb8698bfefb122b13406facb5a677c38b0580a7753dd28cc794f7da6aca850de6adae4d0d625