83a4b08071ee6829a9c420e1c37ea767d986318a18fd937833fe43199d07c9a7

Analysis

max time kernel
145s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27/03/2024, 01:42

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General

Target

e0786cfd02889f5cf8e98b648eb6863f.dll
Size

891KB
MD5

e0786cfd02889f5cf8e98b648eb6863f
SHA1

22b9d971c7fdea19904c96ef4ffae5f6540cbd10
SHA256

83a4b08071ee6829a9c420e1c37ea767d986318a18fd937833fe43199d07c9a7
SHA512

0fc78c7d9482cb3e41866b768c9155a19fc184354470368db518c95c141ec220a042fc7eb93383dc1b341abb73fa9f8a7d45d8fffcdcd3018e4603dd873dea35
SSDEEP

24576:4ksNHkWxFfLAb87n+GyiTP/NwG7ZgqAc:zexFjAoHTiG7ZgTc

Score

6^/10

adware persistence stealer

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\nxnjluuqrkdeuhca = "C:\\Windows\\System32\\regsvr32.exe /s \"C:\\Users\\Admin\\AppData\\Local\\Temp\\e0786cfd02889f5cf8e98b648eb6863f.dll\""	regsvr32.exe

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6F3B866D-9C44-AD1E-3AC5-9DF6C67B83B5}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{6F3B866D-9C44-AD1E-3AC5-9DF6C67B83B5}\NoExplorer = "1"	regsvr32.exe

Maps connected drives based on registry 3 TTPs 3 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum	regsvr32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\Count	regsvr32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 27 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "417665651"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{558FD9C1-EBDB-11EE-BC0B-5A791E92BC44} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6F3B866D-9C44-AD1E-3AC5-9DF6C67B83B5}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e0786cfd02889f5cf8e98b648eb6863f.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6F3B866D-9C44-AD1E-3AC5-9DF6C67B83B5}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6F3B866D-9C44-AD1E-3AC5-9DF6C67B83B5}\ = "revenuebuster browser enhancer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6F3B866D-9C44-AD1E-3AC5-9DF6C67B83B5}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6F3B866D-9C44-AD1E-3AC5-9DF6C67B83B5}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2984	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2984	iexplore.exe
2984	iexplore.exe
2632	IEXPLORE.EXE
2632	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1352 wrote to memory of 2304	1352	regsvr32.exe	28
PID 1352 wrote to memory of 2304	1352	regsvr32.exe	28
PID 1352 wrote to memory of 2304	1352	regsvr32.exe	28
PID 1352 wrote to memory of 2304	1352	regsvr32.exe	28
PID 1352 wrote to memory of 2304	1352	regsvr32.exe	28
PID 1352 wrote to memory of 2304	1352	regsvr32.exe	28
PID 1352 wrote to memory of 2304	1352	regsvr32.exe	28
PID 2984 wrote to memory of 2632	2984	iexplore.exe	30
PID 2984 wrote to memory of 2632	2984	iexplore.exe	30
PID 2984 wrote to memory of 2632	2984	iexplore.exe	30
PID 2984 wrote to memory of 2632	2984	iexplore.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\e0786cfd02889f5cf8e98b648eb6863f.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1352
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\e0786cfd02889f5cf8e98b648eb6863f.dll
  2⤵
  - Adds Run key to start application
  - Installs/modifies Browser Helper Object
  - Maps connected drives based on registry
  - Modifies registry class
  PID:2304

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2984 CREDAT:275457 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Browser Extensions

T1176

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
a4e8477589be282305d07fb67dd32755

SHA1
0c35149ec0c6ec66fa24a0174344f6eb46149435

SHA256
fc319b8341b3463fb5bfa5b0036979ec09ff9f31159e3871aea45b3dec48f977

SHA512
0b60232aad2f19e22e6b8a8605820b9820e743d414b9f14af4b29cbfb898909b8e5d92cd0c6e65c71ece262627b059669308e9b1234717935147bb2ae1375471

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
61dea05a8da1512389240e2e621d94ec

SHA1
24b862b55fef28f2e06d7a3bad4f0d2e3b37c10d

SHA256
0a9e36ed8f4b163e67eb445a1f667777da076909921cd2694b2cb61f2ad2db96

SHA512
6ebeed49704a53d81a023cd0af4221ea8a0df6990221e85332fae9e365d35f5545dfb5b070586861c0020607463dcb46d2a298af4e12d3c9e4bf74c177da5f2e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
74adc83d98f361b00ed0474502148856

SHA1
93514a3bc815d214bc716544e96d8439eeeef58b

SHA256
2aa211284714102b35a81f6924dd458691cca3aadd2c16f18bf42e4cbf3bb707

SHA512
28d8eeb2d2afcbafce8acbb34a608176963782da6f9a9034f765ff5413b812ad8b72b2ca649cd3ea2db1bbd3285c0d03a3c65c0b2c18449588a291a055fb2e5d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
645644b3b6adbb01552f8998aec02c4d

SHA1
4bc66d60e8a6e6b16390d2d2bef2b123936e50b9

SHA256
9dd6236f79e134fb2a23deffdc75435370a72214c21dd4244da035e4099df2f8

SHA512
1094a230c756b9c8aa522b895011a6fd5cdf3b87123560e80a58ede929fb1b1249c6394bb2536b3088442a8f0cc0cbece8f589b7559b54dbcd54921b9384422b

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
028e173a3ec26d862e40431a579bdb35

SHA1
686fbfed0260ac38769cde30e9f21b4cebbc5637

SHA256
a2216cf8e528fc2d2c712a17c509c167f006cbf1e4d7489877de2caecf1e4433

SHA512
6c474b0aa8b77a726d2d0c98d3dc62423d91e66c6735b2cf605cc4e55faae862d8645b0393af4bf4538fc4bdb5e5d8d017d71a7e0669340137d8a58a9fee2670

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
8f23b92e8f74b1cc141d1f1662c21e6d

SHA1
7707ed1506f2b8eda00fb1cf9212b0a793e377a8

SHA256
918973bd600dc5df383057edc8aae2c8ab5f3ed884da26c864d35b50a3327051

SHA512
41f096e5e1ef45f503b97a35f92f123ec2cece3ff2aa46d48dc57eac58adbbed5d9d15f955f60fe1524e2b60567d94c1e216304de612d7e179527a5cd80779b7

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
3e045a8de0d4a7a00b0a987b2ba02516

SHA1
1060af608ba36425538be394e30b4480c4a2a226

SHA256
966cd225828ea7545ac52f68215566b8091285db232c7e9e9b5eb53efda27847

SHA512
234f3e01a19c4b3e9f145112b5553e992f361934add5a3b4be2006c4aa2bd3cf17dba8f762db4e7dbff0ca24b3cf2d6accf5b68803338d0b8d770b061ecbd7b6

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
b1e3de321b85d8de8f3826f9d891a5f9

SHA1
9d9c26ebb1eb0642ee5537e1f8ce493177ce6172

SHA256
2cd527bd3d46d274873ec4546579e2dbec6a130e2e87b379b878c2e63ee34bea

SHA512
03e3994982735fa7147a6f7cbb1ff445d120b43f0f2ca1c7930e7639fdb312c0c9884421a410dc3cc58d2e9c12f3f5f81a164672edda1c9ef10dc7a9aafe009d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
46a412986e58d952d4dc5e4d38d961cc

SHA1
ec10ea64363d24e555480c3b354318578d033824

SHA256
371060b9d37d6f2ceef3cb95d4cc853e3875846a0c84c3729e7242523e26f532

SHA512
6e4ca1bbe42916932438fb8a04ff75a55b952b6bd09b9f8b50fe6636ba47b71ae8c214b46443cc6ae616f5876927e7ab46fcbe7f47eac9447b7d6ae9cd19b434

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab739C.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar809E.tmp

Filesize
177KB

MD5
435a9ac180383f9fa094131b173a2f7b

SHA1
76944ea657a9db94f9a4bef38f88c46ed4166983

SHA256
67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

SHA512
1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Download Submit
memory/2304-2-0x00000000001D0000-0x00000000001D2000-memory.dmp

Filesize
8KB

Download
memory/2304-0-0x0000000001E70000-0x0000000001F55000-memory.dmp

Filesize
916KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads