flawedammyy | 126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1

Analysis

max time kernel
120s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-01-2025 18:51

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General

Target

126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Size

768KB
MD5

a93eeb5fc2c4ba7d97d8351fb0cb7190
SHA1

67bfc742acc1c2cf9d9a5f2d0f3b01829388ce44
SHA256

126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1
SHA512

1282356db54bc7fc1af2a708d07bf7844544cbcec745111737ac4435c353e8f4b94703abc8bd842f482e1dfbedfdabf9f917f524fa3196d49da43ea367f7556c
SSDEEP

12288:ngby1pKmZmjrWinaxABtyZPyoOOORtfWV5gk3VP0nkVg3gX:Yy1pVmjrWivBtyZPy2ORt+V5ggVP0tQX

Score

10^/10

flawedammyy discovery trojan

Malware Config

Signatures

FlawedAmmyy RAT
Remote-access trojan based on leaked code for the Ammyy remote admin software.
trojan flawedammyy
Flawedammyy family
flawedammyy

Blocklisted process makes network request 1 IoCs

flow	pid	Process
14	2364	rundll32.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Control Panel\International\Geo\Nation	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe

Loads dropped DLL 4 IoCs

pid	Process
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\103621DE9CD5414CC2538780B4B75751	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\103621DE9CD5414CC2538780B4B75751	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\34B6AF881B9D738561FC099B83DF3A01	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\34B6AF881B9D738561FC099B83DF3A01	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0072000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CTLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CRLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{35BAD06E-581A-49B1-B3FA-63F111B56D9D}\WpadNetworkName = "Network 3"	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CTLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CRLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CTLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\Certificates	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{35BAD06E-581A-49B1-B3FA-63F111B56D9D}\WpadDecisionReason = "1"	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{35BAD06E-581A-49B1-B3FA-63F111B56D9D}\WpadDecision = "0"	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CRLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CTLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CRLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-92-44-70-9e-90	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-92-44-70-9e-90\WpadDecisionReason = "1"	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\Certificates	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CRLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\Certificates	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{35BAD06E-581A-49B1-B3FA-63F111B56D9D}	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\Certificates	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CTLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CRLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = 33f160659411d883acd0ef58a0d331d32480f0fbbad4593a6e1351269c65f31f1c5997924be6fd2fea18e34315531eba2cf87ae77897bb00d702c241e4b1eb578789d9eeb5ff45c0acca09	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CTLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{35BAD06E-581A-49B1-B3FA-63F111B56D9D}\WpadDecisionTime = 20a3b5122365db01	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{35BAD06E-581A-49B1-B3FA-63F111B56D9D}\22-92-44-70-9e-90	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CRLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\Certificates	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\Certificates	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CTLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-92-44-70-9e-90\WpadDecisionTime = 20a3b5122365db01	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\Certificates	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-92-44-70-9e-90\WpadDecision = "0"	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\Certificates	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CRLs	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe

Suspicious behavior: EnumeratesProcesses 38 IoCs

pid	Process
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe
2364	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeLockMemoryPrivilege	2364	rundll32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2780	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2780	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2780	2668	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe	31
PID 2668 wrote to memory of 2780	2668	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe	31
PID 2668 wrote to memory of 2780	2668	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe	31
PID 2668 wrote to memory of 2780	2668	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe	31
PID 2780 wrote to memory of 2364	2780	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe	32
PID 2780 wrote to memory of 2364	2780	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe	32
PID 2780 wrote to memory of 2364	2780	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe	32
PID 2780 wrote to memory of 2364	2780	126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe	32

C:\Users\Admin\AppData\Local\Temp\126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
"C:\Users\Admin\AppData\Local\Temp\126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:3020

C:\Users\Admin\AppData\Local\Temp\126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
"C:\Users\Admin\AppData\Local\Temp\126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe" -service -lunch
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Users\Admin\AppData\Local\Temp\126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe
  "C:\Users\Admin\AppData\Local\Temp\126a57040b5fa867b6b0e851569ad48ecfac90ff547c3fb5f0aee4a6601d08b1N.exe"
  2⤵
  - Checks computer location settings
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Modifies system certificate store
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2780
- - C:\Windows\system32\rundll32.exe
    rundll32.exe "C:\ProgramData\AMMYY\aa_nts.dll",run
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2364

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\AMMYY\aa_nts.dll

Filesize
902KB

MD5
480a66902e6e7cdafaa6711e8697ff8c

SHA1
6ac730962e7c1dba9e2ecc5733a506544f3c8d11

SHA256
7eaaaa6010bbcd6bb8c9ad08d4b0966c7aedc9b2ac24758f170012ac36e508b5

SHA512
7d010cd47b7d1adf66f9c97afc6c3805997aa5c7cc6ff13eddee81f24cf2b95a3fe375ec5b3d6185c0bc8840b4ad91ae143c73a39af26391cc182ab6a1793ba5

Download Submit
C:\ProgramData\AMMYY\aa_nts.log

Filesize
4KB

MD5
e15afe750c729483c8ccecd346f32842

SHA1
4c59cb0ae52e0988d3a8350fd73cf329f5663b95

SHA256
e9bd721b8f16635f243d6a526baba10fa56434ed36158a4d89a5164e8aa65245

SHA512
e76225c7e8a6d80c4817ddf25ada65d329a4957a578d3ce9c98e0d0013618ec0d1bce77101537c8b4bb72fb13ce21679f6aaa4fe1f4f8886cc25f0a832a37d4c

Download Submit
C:\ProgramData\AMMYY\aa_nts.msg

Filesize
45B

MD5
f5d867c23b8cac17baecc8cd2ac118b9

SHA1
ab0da5d10496611ae18f28822c32507aa531dfc4

SHA256
52ebeac5f05e8e12afb680e5e291b41a440cc7dbb812fddd075b6f7586c4fd2b

SHA512
1a067037fb1a8f6782681902e6dc391e399c5caf3e430bdacc30d2cd36985d4eff72359d676e7799dbac3f2f58f697181934a67af18a366cb58a69e6f56e837d

Download Submit
C:\ProgramData\AMMYY\settings3.bin

Filesize
316B

MD5
4d75d61260a946b1017c2bae293cabc7

SHA1
05257b0afe1113f1eded4b5aafdbe0feb8457d5b

SHA256
85fa7940ba5b07606dd152ca23dcd1ed27a99d3c9f5ff58f4f95cec4ffc9cf6f

SHA512
e3dd5011cce6adb6d2f79a34b2cf59c40783d8d9ba66e3d190d8077e4bde1e3ec0d5afe5f720ff8064d554e6f8a5a4a0ee2462681c8affaec1bed1ef60b54969

Download Submit
memory/2364-21-0x0000000064200000-0x00000000642EE000-memory.dmp

Filesize
952KB

Download
memory/2364-45-0x0000000064200000-0x00000000642EE000-memory.dmp

Filesize
952KB

Download
memory/2364-63-0x0000000064200000-0x00000000642EE000-memory.dmp

Filesize
952KB

Download
memory/2364-78-0x0000000064200000-0x00000000642EE000-memory.dmp

Filesize
952KB

Download