4aeb072fee9ccdfcf388bdc1c4a1174eeaecc5448062bf79ebd3faef5b0325cf

Analysis

max time kernel
103s
max time network
106s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2022, 20:04

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General

Target

4aeb072fee9ccdfcf388bdc1c4a1174eeaecc5448062bf79ebd3faef5b0325cf.dll
Size

148KB
MD5

6c7a459f20046145b160c84b69d8fdbf
SHA1

2aafce329881a1d72c84355be0634fcf6ea5010e
SHA256

4aeb072fee9ccdfcf388bdc1c4a1174eeaecc5448062bf79ebd3faef5b0325cf
SHA512

6c2dfa652e592ccff7e29872be5e8955509b19ee85cff30b42a4fb4ad8090e4fce8f9f5b54c86e6534e1a06b997ce97102c13f566709d4c8d0582dfbe49ff806
SSDEEP

3072:3bf/YTXnjn1gCVMSJXbA3B49CuZaMLzbxVwB5pdkP3cOqI10JK:rITXjnzZxA3Bfu0ixSBnjwb

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1684	regsvr32mgr.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x0003000000000721-134.dat	upx
behavioral2/files/0x0003000000000721-135.dat	upx
behavioral2/memory/1684-136-0x0000000000400000-0x0000000000454000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\regsvr32mgr.exe	regsvr32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
728	1684	WerFault.exe	84

Modifies registry class 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9F31434C-2760-4B9B-BBA1-C1B2A5C5A758}\TypeLib\ = "{3A641458-17C1-4776-906E-5F530A5A698F}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F1838686-EAE3-456D-BD25-D439B5FE55E5}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F5E3B2F0-F4E2-4C97-8013-36BAED1414F7}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F5E3B2F0-F4E2-4C97-8013-36BAED1414F7}\ = "IXRipperConfigurator"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{275E7DBE-4A70-4CC7-93B0-921038AB4134}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{275E7DBE-4A70-4CC7-93B0-921038AB4134}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F1838686-EAE3-456D-BD25-D439B5FE55E5}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F1838686-EAE3-456D-BD25-D439B5FE55E5}\ = "IXStreamRipper"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\StreamRipperEx.StreamRipperEx	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9F31434C-2760-4B9B-BBA1-C1B2A5C5A758}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{275E7DBE-4A70-4CC7-93B0-921038AB4134}\ = "IXEqulazer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F5E3B2F0-F4E2-4C97-8013-36BAED1414F7}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{275E7DBE-4A70-4CC7-93B0-921038AB4134}\ = "IXEqulazer"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F5E3B2F0-F4E2-4C97-8013-36BAED1414F7}\ = "IXRipperConfigurator"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\StreamRipperEx.StreamRipperEx.1\ = "StreamRipperEx Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A641458-17C1-4776-906E-5F530A5A698F}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4aeb072fee9ccdfcf388bdc1c4a1174eeaecc5448062bf79ebd3faef5b0325cf.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A641458-17C1-4776-906E-5F530A5A698F}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{275E7DBE-4A70-4CC7-93B0-921038AB4134}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F1838686-EAE3-456D-BD25-D439B5FE55E5}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9F31434C-2760-4B9B-BBA1-C1B2A5C5A758}\VersionIndependentProgID\ = "StreamRipperEx.StreamRipperEx"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9F31434C-2760-4B9B-BBA1-C1B2A5C5A758}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A641458-17C1-4776-906E-5F530A5A698F}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A641458-17C1-4776-906E-5F530A5A698F}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{275E7DBE-4A70-4CC7-93B0-921038AB4134}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F1838686-EAE3-456D-BD25-D439B5FE55E5}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F1838686-EAE3-456D-BD25-D439B5FE55E5}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F5E3B2F0-F4E2-4C97-8013-36BAED1414F7}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\StreamRipperEx.StreamRipperEx\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\StreamRipperEx.StreamRipperEx\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A641458-17C1-4776-906E-5F530A5A698F}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{275E7DBE-4A70-4CC7-93B0-921038AB4134}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9F31434C-2760-4B9B-BBA1-C1B2A5C5A758}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9F31434C-2760-4B9B-BBA1-C1B2A5C5A758}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4aeb072fee9ccdfcf388bdc1c4a1174eeaecc5448062bf79ebd3faef5b0325cf.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{275E7DBE-4A70-4CC7-93B0-921038AB4134}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F1838686-EAE3-456D-BD25-D439B5FE55E5}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\StreamRipperEx.StreamRipperEx.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\StreamRipperEx.StreamRipperEx.1\CLSID\ = "{9F31434C-2760-4B9B-BBA1-C1B2A5C5A758}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9F31434C-2760-4B9B-BBA1-C1B2A5C5A758}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9F31434C-2760-4B9B-BBA1-C1B2A5C5A758}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F1838686-EAE3-456D-BD25-D439B5FE55E5}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F1838686-EAE3-456D-BD25-D439B5FE55E5}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F5E3B2F0-F4E2-4C97-8013-36BAED1414F7}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F5E3B2F0-F4E2-4C97-8013-36BAED1414F7}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F5E3B2F0-F4E2-4C97-8013-36BAED1414F7}\TypeLib\ = "{3A641458-17C1-4776-906E-5F530A5A698F}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\StreamRipperEx.StreamRipperEx.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\StreamRipperEx.StreamRipperEx\ = "StreamRipperEx Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3A641458-17C1-4776-906E-5F530A5A698F}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F5E3B2F0-F4E2-4C97-8013-36BAED1414F7}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{275E7DBE-4A70-4CC7-93B0-921038AB4134}\TypeLib\ = "{3A641458-17C1-4776-906E-5F530A5A698F}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F1838686-EAE3-456D-BD25-D439B5FE55E5}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F1838686-EAE3-456D-BD25-D439B5FE55E5}\TypeLib\ = "{3A641458-17C1-4776-906E-5F530A5A698F}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F5E3B2F0-F4E2-4C97-8013-36BAED1414F7}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\StreamRipperEx.StreamRipperEx\CurVer\ = "StreamRipperEx.StreamRipperEx.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9F31434C-2760-4B9B-BBA1-C1B2A5C5A758}\ProgID\ = "StreamRipperEx.StreamRipperEx.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{275E7DBE-4A70-4CC7-93B0-921038AB4134}\TypeLib\ = "{3A641458-17C1-4776-906E-5F530A5A698F}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{275E7DBE-4A70-4CC7-93B0-921038AB4134}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F5E3B2F0-F4E2-4C97-8013-36BAED1414F7}\TypeLib\ = "{3A641458-17C1-4776-906E-5F530A5A698F}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9F31434C-2760-4B9B-BBA1-C1B2A5C5A758}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{275E7DBE-4A70-4CC7-93B0-921038AB4134}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F5E3B2F0-F4E2-4C97-8013-36BAED1414F7}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F5E3B2F0-F4E2-4C97-8013-36BAED1414F7}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\StreamRipperEx.StreamRipperEx\CLSID\ = "{9F31434C-2760-4B9B-BBA1-C1B2A5C5A758}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F1838686-EAE3-456D-BD25-D439B5FE55E5}\ = "IXStreamRipper"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9F31434C-2760-4B9B-BBA1-C1B2A5C5A758}\ = "StreamRipperEx Class"	regsvr32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2144 wrote to memory of 3452	2144	regsvr32.exe	83
PID 2144 wrote to memory of 3452	2144	regsvr32.exe	83
PID 2144 wrote to memory of 3452	2144	regsvr32.exe	83
PID 3452 wrote to memory of 1684	3452	regsvr32.exe	84
PID 3452 wrote to memory of 1684	3452	regsvr32.exe	84
PID 3452 wrote to memory of 1684	3452	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\4aeb072fee9ccdfcf388bdc1c4a1174eeaecc5448062bf79ebd3faef5b0325cf.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2144
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\4aeb072fee9ccdfcf388bdc1c4a1174eeaecc5448062bf79ebd3faef5b0325cf.dll
  2⤵
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3452
- - C:\Windows\SysWOW64\regsvr32mgr.exe
    C:\Windows\SysWOW64\regsvr32mgr.exe
    3⤵
    - Executes dropped EXE
    PID:1684
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 268
      4⤵
      Program crash
      PID:728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1684 -ip 1684
1⤵
PID:3268

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Windows\SysWOW64\regsvr32mgr.exe

Filesize
99KB

MD5
f57eee1185dee33198b752dd1f66ad55

SHA1
b60f88d65f8805bf2ca095ecd1727b15eed4ff12

SHA256
6bb93bea58d84b9c6a562a6b888ec84ba0ecb7575b6c8f3264a9e9fb44ee37f7

SHA512
cd97a2207d7ad6178cc7c9fb13fda7015bc30a924aa43b6e8ba07961ef878a841e6d025047a35e3b60ef23a3ab9b59b16d1abe09f39dc0cd6e5515d46630ad40

Download Submit
C:\Windows\SysWOW64\regsvr32mgr.exe

Filesize
99KB

MD5
f57eee1185dee33198b752dd1f66ad55

SHA1
b60f88d65f8805bf2ca095ecd1727b15eed4ff12

SHA256
6bb93bea58d84b9c6a562a6b888ec84ba0ecb7575b6c8f3264a9e9fb44ee37f7

SHA512
cd97a2207d7ad6178cc7c9fb13fda7015bc30a924aa43b6e8ba07961ef878a841e6d025047a35e3b60ef23a3ab9b59b16d1abe09f39dc0cd6e5515d46630ad40

Download Submit
memory/1684-136-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download