93804ffc00bc94fe1e5eb9996a9c3e457b620ff877359c5a67b528feca3527b2

Analysis

max time kernel
34s
max time network
42s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
03/10/2022, 19:24

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General

Target

93804ffc00bc94fe1e5eb9996a9c3e457b620ff877359c5a67b528feca3527b2.dll
Size

203KB
MD5

31ec850ee0605a11e119be0090eb67b0
SHA1

b4c9c9cbc29d2b780bfebe24fa78b14cc5078b2b
SHA256

93804ffc00bc94fe1e5eb9996a9c3e457b620ff877359c5a67b528feca3527b2
SHA512

21511b56b019c525de10b3290bc8ae2dc5d52dbe987c54195533a125249fdeea0c44f72dc8ed0ec90d00d65800f41ddf1ab41b3429116e9b0cd834e4a96fd7ef
SSDEEP

6144:5dTpountf75IwvRBxPYb3/OPXCS9U0XKy:jlouhVBq2XS06y

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1284	regsvr32mgr.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1284-64-0x0000000000400000-0x000000000042A000-memory.dmp	upx
behavioral1/memory/1284-69-0x0000000000400000-0x000000000042A000-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
1560	regsvr32.exe
1560	regsvr32.exe
1284	regsvr32mgr.exe
1284	regsvr32mgr.exe

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
1676	1284	WerFault.exe	27

Modifies registry class 45 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B6DD1ED6-573F-40FD-99A1-F28D8BF23916}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0A55922C-3B1F-469B-8D0D-B15060499A52}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WMP.DeskBand.1\ = "&Windows Media Player"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WMP.DeskBand.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0A4286EA-E355-44FB-8086-AF3DF7645BD9}\Implemented Categories	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B6DD1ED6-573F-40FD-99A1-F28D8BF23916}\1.0\ = "WMPDeskBand 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B6DD1ED6-573F-40FD-99A1-F28D8BF23916}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\93804ffc00bc94fe1e5eb9996a9c3e457b620ff877359c5a67b528feca3527b2.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{0A55922C-3B1F-469B-8D0D-B15060499A52}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{0A55922C-3B1F-469B-8D0D-B15060499A52}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0A55922C-3B1F-469B-8D0D-B15060499A52}\ = "IWMPDeskBandDispatch"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WMP.DeskBand	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WMP.DeskBand\ = "&Windows Media Player"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0A55922C-3B1F-469B-8D0D-B15060499A52}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0A4286EA-E355-44FB-8086-AF3DF7645BD9}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B6DD1ED6-573F-40FD-99A1-F28D8BF23916}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B6DD1ED6-573F-40FD-99A1-F28D8BF23916}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WMP.DeskBand\CLSID\ = "{0A4286EA-E355-44FB-8086-AF3DF7645BD9}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0A4286EA-E355-44FB-8086-AF3DF7645BD9}\LocalizedString = "@C:\\Users\\Admin\\AppData\\Local\\Temp\\93804ffc00bc94fe1e5eb9996a9c3e457b620ff877359c5a67b528feca3527b2.dll,-101"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0A4286EA-E355-44FB-8086-AF3DF7645BD9}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0A4286EA-E355-44FB-8086-AF3DF7645BD9}\ProgID\ = "WMP.DeskBand.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B6DD1ED6-573F-40FD-99A1-F28D8BF23916}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{0A55922C-3B1F-469B-8D0D-B15060499A52}\ = "IWMPDeskBandDispatch"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{0A55922C-3B1F-469B-8D0D-B15060499A52}\TypeLib\ = "{B6DD1ED6-573F-40FD-99A1-F28D8BF23916}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0A55922C-3B1F-469B-8D0D-B15060499A52}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WMP.DeskBand.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WMP.DeskBand.1\CLSID\ = "{0A4286EA-E355-44FB-8086-AF3DF7645BD9}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0A55922C-3B1F-469B-8D0D-B15060499A52}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0A55922C-3B1F-469B-8D0D-B15060499A52}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0A4286EA-E355-44FB-8086-AF3DF7645BD9}\MenuText = "@C:\\Users\\Admin\\AppData\\Local\\Temp\\93804ffc00bc94fe1e5eb9996a9c3e457b620ff877359c5a67b528feca3527b2.dll,-101"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{0A55922C-3B1F-469B-8D0D-B15060499A52}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B6DD1ED6-573F-40FD-99A1-F28D8BF23916}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B6DD1ED6-573F-40FD-99A1-F28D8BF23916}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{0A55922C-3B1F-469B-8D0D-B15060499A52}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0A55922C-3B1F-469B-8D0D-B15060499A52}\TypeLib\ = "{B6DD1ED6-573F-40FD-99A1-F28D8BF23916}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0A4286EA-E355-44FB-8086-AF3DF7645BD9}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0A4286EA-E355-44FB-8086-AF3DF7645BD9}\Implemented Categories\{00021492-0000-0000-C000-000000000046}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0A4286EA-E355-44FB-8086-AF3DF7645BD9}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0A4286EA-E355-44FB-8086-AF3DF7645BD9}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0A4286EA-E355-44FB-8086-AF3DF7645BD9}\VersionIndependentProgID\ = "WMP.DeskBand"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B6DD1ED6-573F-40FD-99A1-F28D8BF23916}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{0A55922C-3B1F-469B-8D0D-B15060499A52}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WMP.DeskBand\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0A4286EA-E355-44FB-8086-AF3DF7645BD9}\ = "&Windows Media Player"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0A4286EA-E355-44FB-8086-AF3DF7645BD9}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\93804ffc00bc94fe1e5eb9996a9c3e457b620ff877359c5a67b528feca3527b2.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B6DD1ED6-573F-40FD-99A1-F28D8BF23916}\1.0\FLAGS	regsvr32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1348 wrote to memory of 1560	1348	regsvr32.exe	26
PID 1348 wrote to memory of 1560	1348	regsvr32.exe	26
PID 1348 wrote to memory of 1560	1348	regsvr32.exe	26
PID 1348 wrote to memory of 1560	1348	regsvr32.exe	26
PID 1348 wrote to memory of 1560	1348	regsvr32.exe	26
PID 1348 wrote to memory of 1560	1348	regsvr32.exe	26
PID 1348 wrote to memory of 1560	1348	regsvr32.exe	26
PID 1560 wrote to memory of 1284	1560	regsvr32.exe	27
PID 1560 wrote to memory of 1284	1560	regsvr32.exe	27
PID 1560 wrote to memory of 1284	1560	regsvr32.exe	27
PID 1560 wrote to memory of 1284	1560	regsvr32.exe	27

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\93804ffc00bc94fe1e5eb9996a9c3e457b620ff877359c5a67b528feca3527b2.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1348
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\93804ffc00bc94fe1e5eb9996a9c3e457b620ff877359c5a67b528feca3527b2.dll
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1560
- - C:\Windows\SysWOW64\regsvr32mgr.exe
    C:\Windows\SysWOW64\regsvr32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:1284
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 180
      4⤵
      Program crash
      PID:1676

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Windows\SysWOW64\regsvr32mgr.exe

Filesize
106KB

MD5
7657fcb7d772448a6d8504e4b20168b8

SHA1
84c7201f7e59cb416280fd69a2e7f2e349ec8242

SHA256
54bc950d46a0d1aa72048a17c8275743209e6c17bdacfc4cb9601c9ce3ec9a71

SHA512
786addd2a793bd4123625b22dc717d193246442ac97f1c3f4a763ec794b48e68051cd41097c0e9f7367e6914534f36eafccb109ab03dc793d68bf1522e7884e2

Download Submit
\Users\Admin\AppData\Local\Temp\~TMA239.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
\Users\Admin\AppData\Local\Temp\~TMA334.tmp

Filesize
1.1MB

MD5
9b98d47916ead4f69ef51b56b0c2323c

SHA1
290a80b4ded0efc0fd00816f373fcea81a521330

SHA256
96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

SHA512
68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

Download Submit
\Windows\SysWOW64\regsvr32mgr.exe

Filesize
106KB

MD5
7657fcb7d772448a6d8504e4b20168b8

SHA1
84c7201f7e59cb416280fd69a2e7f2e349ec8242

SHA256
54bc950d46a0d1aa72048a17c8275743209e6c17bdacfc4cb9601c9ce3ec9a71

SHA512
786addd2a793bd4123625b22dc717d193246442ac97f1c3f4a763ec794b48e68051cd41097c0e9f7367e6914534f36eafccb109ab03dc793d68bf1522e7884e2

Download Submit
\Windows\SysWOW64\regsvr32mgr.exe

Filesize
106KB

MD5
7657fcb7d772448a6d8504e4b20168b8

SHA1
84c7201f7e59cb416280fd69a2e7f2e349ec8242

SHA256
54bc950d46a0d1aa72048a17c8275743209e6c17bdacfc4cb9601c9ce3ec9a71

SHA512
786addd2a793bd4123625b22dc717d193246442ac97f1c3f4a763ec794b48e68051cd41097c0e9f7367e6914534f36eafccb109ab03dc793d68bf1522e7884e2

Download Submit
memory/1284-64-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1284-65-0x0000000001B80000-0x0000000001BAA000-memory.dmp

Filesize
168KB

Download
memory/1284-66-0x0000000077440000-0x00000000775C0000-memory.dmp

Filesize
1.5MB

Download
memory/1284-68-0x0000000077440000-0x00000000775C0000-memory.dmp

Filesize
1.5MB

Download
memory/1284-69-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1284-70-0x0000000077440000-0x00000000775C0000-memory.dmp

Filesize
1.5MB

Download
memory/1348-54-0x000007FEFBAE1000-0x000007FEFBAE3000-memory.dmp

Filesize
8KB

Download
memory/1560-56-0x0000000074F41000-0x0000000074F43000-memory.dmp

Filesize
8KB

Download
memory/1560-58-0x00000000746B0000-0x00000000746E6000-memory.dmp

Filesize
216KB

Download