c8fb4d5817c67d1087cdd98dbcf57c92a0e9d31b56014c7dfe347e67e0c65a8c

Analysis

max time kernel
179s
max time network
213s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2022 19:21

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General

Target

c8fb4d5817c67d1087cdd98dbcf57c92a0e9d31b56014c7dfe347e67e0c65a8c.exe
Size

2.5MB
MD5

7510b8b3f3853ed859a2ef9be9c9710c
SHA1

091fc6d5999254fa4a9b7103b6f5b4b09f141939
SHA256

c8fb4d5817c67d1087cdd98dbcf57c92a0e9d31b56014c7dfe347e67e0c65a8c
SHA512

ad185ca4f30caea8cce03ffe13f97514185c13cd4dbfcd4f6525672b54066de14d00744118a5d00314df90ff4639fc64453893307298a4705d771982435f5d48
SSDEEP

49152:h1OsL+QK3xQpjajXKioFMpYphqd3ArqvFUmEaDxEAxh4UR9TEf:h1OZQCjbKioVg3ArKh40W

Score

8^/10

adware discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

Wj4tPDA0olaYVCE.exe

pid process

452 Wj4tPDA0olaYVCE.exe
Loads dropped DLL 3 IoCs

Processes:

Wj4tPDA0olaYVCE.exeregsvr32.exeregsvr32.exe

pid process

452 Wj4tPDA0olaYVCE.exe
4532 regsvr32.exe
760 regsvr32.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

pid	process
452	Wj4tPDA0olaYVCE.exe

pid	process
452	Wj4tPDA0olaYVCE.exe
4532	regsvr32.exe
760	regsvr32.exe

Drops Chrome extension 5 IoCs

Processes:

Wj4tPDA0olaYVCE.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\hkkgcpohfjhhkblbcfjgccjpionikang\1.0\manifest.json	Wj4tPDA0olaYVCE.exe
File created	C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\hkkgcpohfjhhkblbcfjgccjpionikang\1.0\manifest.json	Wj4tPDA0olaYVCE.exe
File created	C:\Users\DefaultAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\hkkgcpohfjhhkblbcfjgccjpionikang\1.0\manifest.json	Wj4tPDA0olaYVCE.exe
File created	C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\hkkgcpohfjhhkblbcfjgccjpionikang\1.0\manifest.json	Wj4tPDA0olaYVCE.exe
File created	C:\Users\WDAGUtilityAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\hkkgcpohfjhhkblbcfjgccjpionikang\1.0\manifest.json	Wj4tPDA0olaYVCE.exe

Installs/modifies Browser Helper Object 2 TTPs 9 IoCs

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

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

Processes:

Wj4tPDA0olaYVCE.exeregsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\	Wj4tPDA0olaYVCE.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{761497BB-D6F0-462C-B6EB-D4DAF1D92D43}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}	Wj4tPDA0olaYVCE.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}	Wj4tPDA0olaYVCE.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	Wj4tPDA0olaYVCE.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{DBC80044-A445-435B-BC74-9C25C1C588A9}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\	regsvr32.exe

Drops file in Program Files directory 8 IoCs

Processes:

Wj4tPDA0olaYVCE.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\YoutubeAdBlocke\Mw8lDinRGMZFjm.tlb	Wj4tPDA0olaYVCE.exe
File created	C:\Program Files (x86)\YoutubeAdBlocke\Mw8lDinRGMZFjm.dat	Wj4tPDA0olaYVCE.exe
File opened for modification	C:\Program Files (x86)\YoutubeAdBlocke\Mw8lDinRGMZFjm.dat	Wj4tPDA0olaYVCE.exe
File created	C:\Program Files (x86)\YoutubeAdBlocke\Mw8lDinRGMZFjm.x64.dll	Wj4tPDA0olaYVCE.exe
File opened for modification	C:\Program Files (x86)\YoutubeAdBlocke\Mw8lDinRGMZFjm.x64.dll	Wj4tPDA0olaYVCE.exe
File created	C:\Program Files (x86)\YoutubeAdBlocke\Mw8lDinRGMZFjm.dll	Wj4tPDA0olaYVCE.exe
File opened for modification	C:\Program Files (x86)\YoutubeAdBlocke\Mw8lDinRGMZFjm.dll	Wj4tPDA0olaYVCE.exe
File created	C:\Program Files (x86)\YoutubeAdBlocke\Mw8lDinRGMZFjm.tlb	Wj4tPDA0olaYVCE.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Wj4tPDA0olaYVCE.exe

pid process

452 Wj4tPDA0olaYVCE.exe
452 Wj4tPDA0olaYVCE.exe

pid	process
452	Wj4tPDA0olaYVCE.exe
452	Wj4tPDA0olaYVCE.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

c8fb4d5817c67d1087cdd98dbcf57c92a0e9d31b56014c7dfe347e67e0c65a8c.exeWj4tPDA0olaYVCE.exeregsvr32.exe

description	pid	process	target process
PID 2152 wrote to memory of 452	2152	c8fb4d5817c67d1087cdd98dbcf57c92a0e9d31b56014c7dfe347e67e0c65a8c.exe	Wj4tPDA0olaYVCE.exe
PID 2152 wrote to memory of 452	2152	c8fb4d5817c67d1087cdd98dbcf57c92a0e9d31b56014c7dfe347e67e0c65a8c.exe	Wj4tPDA0olaYVCE.exe
PID 2152 wrote to memory of 452	2152	c8fb4d5817c67d1087cdd98dbcf57c92a0e9d31b56014c7dfe347e67e0c65a8c.exe	Wj4tPDA0olaYVCE.exe
PID 452 wrote to memory of 4532	452	Wj4tPDA0olaYVCE.exe	regsvr32.exe
PID 452 wrote to memory of 4532	452	Wj4tPDA0olaYVCE.exe	regsvr32.exe
PID 452 wrote to memory of 4532	452	Wj4tPDA0olaYVCE.exe	regsvr32.exe
PID 4532 wrote to memory of 760	4532	regsvr32.exe	regsvr32.exe
PID 4532 wrote to memory of 760	4532	regsvr32.exe	regsvr32.exe

C:\Users\Admin\AppData\Local\Temp\c8fb4d5817c67d1087cdd98dbcf57c92a0e9d31b56014c7dfe347e67e0c65a8c.exe
"C:\Users\Admin\AppData\Local\Temp\c8fb4d5817c67d1087cdd98dbcf57c92a0e9d31b56014c7dfe347e67e0c65a8c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Users\Admin\AppData\Local\Temp\7zSB8C1.tmp\Wj4tPDA0olaYVCE.exe
  .\Wj4tPDA0olaYVCE.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops Chrome extension
  - Installs/modifies Browser Helper Object
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:452
- - C:\Windows\SysWOW64\regsvr32.exe
    regsvr32.exe /s "C:\Program Files (x86)\YoutubeAdBlocke\Mw8lDinRGMZFjm.x64.dll"
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:4532
  - - C:\Windows\system32\regsvr32.exe
      /s "C:\Program Files (x86)\YoutubeAdBlocke\Mw8lDinRGMZFjm.x64.dll"
      4⤵
      Loads dropped DLL
      Installs/modifies Browser Helper Object
      PID:760

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\YoutubeAdBlocke\Mw8lDinRGMZFjm.dat

Filesize
6KB

MD5
34bb7fa8eea5f3af3ce9847fe1f53e94

SHA1
12c5e1e1c850df64f321e5e895689802c697a25d

SHA256
f2b5ff6f42218e1b197496790a6a01d0d51cce25c6e01fd233916bac0b2c2545

SHA512
12fd3e25c875412783a4670288082649bc62431af47d82486cb10d0c59f67e45903b21456c4029a4351fbc3821b674705d9adbfbc764999e46b2d8d936e842b6

Download Submit
C:\Program Files (x86)\YoutubeAdBlocke\Mw8lDinRGMZFjm.dll

Filesize
748KB

MD5
c4836ef373cdfa7eac3738c59ae9fb83

SHA1
2f019c1b3357e3be378ac804acfc98ec4f80b576

SHA256
5c7ba1a9e0bf346f3b4baa8e6965981b0ff412eabc879ecc531e98f268c34e3e

SHA512
e459aeba63802639c8e7245afc139d86e75a805e14b90318b926ff00fe384d14ac209dc76fb88319218c89fe1562c737ed4c5847cd92e698d529ba6737c2fb4d

Download Submit
C:\Program Files (x86)\YoutubeAdBlocke\Mw8lDinRGMZFjm.x64.dll

Filesize
887KB

MD5
fe714aa952e86e33b2cc1652e0f7f6cb

SHA1
25927512b7bef5f0586f7edab4d4804ec43409aa

SHA256
c4fc97da6b3393137f1711238c3ac18d36f903d256a9205fd40e71b4c99ce579

SHA512
fe5ac276c14bf2f5e59a1c4acccb98404cbbbe0bceed92a69e5860445682c44d8575ef6926706b9d750bcbf8dca539503547c4f693a8b28cb2e3463760c2c5a7

Download Submit
C:\Program Files (x86)\YoutubeAdBlocke\Mw8lDinRGMZFjm.x64.dll

Filesize
887KB

MD5
fe714aa952e86e33b2cc1652e0f7f6cb

SHA1
25927512b7bef5f0586f7edab4d4804ec43409aa

SHA256
c4fc97da6b3393137f1711238c3ac18d36f903d256a9205fd40e71b4c99ce579

SHA512
fe5ac276c14bf2f5e59a1c4acccb98404cbbbe0bceed92a69e5860445682c44d8575ef6926706b9d750bcbf8dca539503547c4f693a8b28cb2e3463760c2c5a7

Download Submit
C:\Program Files (x86)\YoutubeAdBlocke\Mw8lDinRGMZFjm.x64.dll

Filesize
887KB

MD5
fe714aa952e86e33b2cc1652e0f7f6cb

SHA1
25927512b7bef5f0586f7edab4d4804ec43409aa

SHA256
c4fc97da6b3393137f1711238c3ac18d36f903d256a9205fd40e71b4c99ce579

SHA512
fe5ac276c14bf2f5e59a1c4acccb98404cbbbe0bceed92a69e5860445682c44d8575ef6926706b9d750bcbf8dca539503547c4f693a8b28cb2e3463760c2c5a7

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSB8C1.tmp\Mw8lDinRGMZFjm.dll

Filesize
748KB

MD5
c4836ef373cdfa7eac3738c59ae9fb83

SHA1
2f019c1b3357e3be378ac804acfc98ec4f80b576

SHA256
5c7ba1a9e0bf346f3b4baa8e6965981b0ff412eabc879ecc531e98f268c34e3e

SHA512
e459aeba63802639c8e7245afc139d86e75a805e14b90318b926ff00fe384d14ac209dc76fb88319218c89fe1562c737ed4c5847cd92e698d529ba6737c2fb4d

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSB8C1.tmp\Mw8lDinRGMZFjm.tlb

Filesize
3KB

MD5
f461159d95e1a49a534ad0320ff3984b

SHA1
e3363285437846f046b126adbcd8e4789aa1f486

SHA256
d6967480d6f6fd4b9d31fb7e38ee6f04c76c36edd2795f852ec3938d984993d6

SHA512
2a12587d4a69c967771d8b4ed43e857a81899e177d5ec8ddf8365eaa4e8752032fac8d25b5c3a89ae5efc82b4c6dfd4ba2d26e998b3ad95cc8fdc6ef0c7416ed

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSB8C1.tmp\Mw8lDinRGMZFjm.x64.dll

Filesize
887KB

MD5
fe714aa952e86e33b2cc1652e0f7f6cb

SHA1
25927512b7bef5f0586f7edab4d4804ec43409aa

SHA256
c4fc97da6b3393137f1711238c3ac18d36f903d256a9205fd40e71b4c99ce579

SHA512
fe5ac276c14bf2f5e59a1c4acccb98404cbbbe0bceed92a69e5860445682c44d8575ef6926706b9d750bcbf8dca539503547c4f693a8b28cb2e3463760c2c5a7

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSB8C1.tmp\Wj4tPDA0olaYVCE.dat

Filesize
6KB

MD5
34bb7fa8eea5f3af3ce9847fe1f53e94

SHA1
12c5e1e1c850df64f321e5e895689802c697a25d

SHA256
f2b5ff6f42218e1b197496790a6a01d0d51cce25c6e01fd233916bac0b2c2545

SHA512
12fd3e25c875412783a4670288082649bc62431af47d82486cb10d0c59f67e45903b21456c4029a4351fbc3821b674705d9adbfbc764999e46b2d8d936e842b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSB8C1.tmp\Wj4tPDA0olaYVCE.exe

Filesize
765KB

MD5
102dfa10cc29d7f1ded876dfd7274280

SHA1
f26e57d916bf7c5c3a4b49a2edaf30e945b0b44e

SHA256
67d9ee9e36b29e081ff2084dc488b0b6c4120e791a5c33ce6027cf89718e4bb3

SHA512
c3b7bb463873420f1582880308acca440c24fefaf45c9ad75319665e07c0f4548bd6fe07fabec48edd138a495a2607297773b16400e351e68a7462b45fb2c0c2

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSB8C1.tmp\Wj4tPDA0olaYVCE.exe

Filesize
765KB

MD5
102dfa10cc29d7f1ded876dfd7274280

SHA1
f26e57d916bf7c5c3a4b49a2edaf30e945b0b44e

SHA256
67d9ee9e36b29e081ff2084dc488b0b6c4120e791a5c33ce6027cf89718e4bb3

SHA512
c3b7bb463873420f1582880308acca440c24fefaf45c9ad75319665e07c0f4548bd6fe07fabec48edd138a495a2607297773b16400e351e68a7462b45fb2c0c2

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSB8C1.tmp\[email protected]\bootstrap.js

Filesize
2KB

MD5
df13f711e20e9c80171846d4f2f7ae06

SHA1
56d29cda58427efe0e21d3880d39eb1b0ef60bee

SHA256
6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

SHA512
6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSB8C1.tmp\[email protected]\chrome.manifest

Filesize
35B

MD5
c70fd2f2a5f6ea26d9c574d77d32be92

SHA1
73ca0206dc11c7381c815ded47efc572e33a6864

SHA256
a1c263cf678a46e39bfd67e84b68c0cde51d3443a5fcfaaf5af208cfbfbe4b09

SHA512
77c53599f80e19d3834b60ec853073c730414bc1dc752cb49caae69993df54d04655cf3ea2c62a006435d0fa825a06a94d5de30abe26085306564afcac584822

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSB8C1.tmp\[email protected]\content\bg.js

Filesize
7KB

MD5
b0f743f1edc3e9f712763e811d7635b6

SHA1
3b3e583738c87d112344d3d9c56f439465eb8390

SHA256
7b412b1c7448cd38aecc706b66fdfbdfcd713e1aca55eee3a41e13d49f669323

SHA512
b3d6b27713c9651c306a8214e90cb5e2f574f2ccbfe4f232598fdf5e4642d33f44623e62147a39804e2f080385a2a9a69393766bf80beaf848e9cb2af03105a3

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSB8C1.tmp\[email protected]\install.rdf

Filesize
607B

MD5
e8d61afb016bd7ad91f7caa9ae588f3a

SHA1
44df1753d287a9084c45af78e380c062253364e4

SHA256
2c11334ac43717579cafa36619c839a9b5e8757d517bd2c7424399b3583c58b5

SHA512
d81f6fcc484572dc6e5b13120f26a5f68f4d44dd784c381e26443df8b88c2f5bdb35fcee39ea568af18f48bed7f686e9476a39c2f3f982d76410a88716ec530f

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSB8C1.tmp\hkkgcpohfjhhkblbcfjgccjpionikang\OhwFVd.js

Filesize
5KB

MD5
c2628a1f7b73106b18c81b9becbc2b84

SHA1
a6f821bbe56f3214537686f68d8de23c018d2aa5

SHA256
b4030d0fffaa5165bd4a703dc8d62f84965f6ae2e113a5e09623bd4a70910841

SHA512
3a4b7e06ec6b3215e7c751fe23631bd3d300ac067e128c3532375fe72cabd2fa460c7fb4e2f108a4cabadf775cbb6f6b7fdfba499ae9cfeae351dee527b06901

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSB8C1.tmp\hkkgcpohfjhhkblbcfjgccjpionikang\background.html

Filesize
143B

MD5
209133960e95861b137c3d1baa0eb80e

SHA1
90c21c397adc98b29475fbd586beeca84339af5e

SHA256
0d957eb1df8a19591b81b78a199517f621b6dc228b8d8006fa01f3c8404957f9

SHA512
16f062c1c822a64e440bd274a1cf365514137238cbf604bbfcad9ff1d1560e4bab484d54972faa347d04362f12bb956ecc57ecb0c24b67d809a6feeb938677b8

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSB8C1.tmp\hkkgcpohfjhhkblbcfjgccjpionikang\content.js

Filesize
144B

MD5
fca19198fd8af21016a8b1dec7980002

SHA1
fd01a47d14004e17a625efe66cc46a06c786cf40

SHA256
332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

SHA512
60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSB8C1.tmp\hkkgcpohfjhhkblbcfjgccjpionikang\lsdb.js

Filesize
531B

MD5
36d98318ab2b3b2585a30984db328afb

SHA1
f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

SHA256
ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

SHA512
6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSB8C1.tmp\hkkgcpohfjhhkblbcfjgccjpionikang\manifest.json

Filesize
507B

MD5
d429395a45a9aa09e4ee9054e9196b30

SHA1
c5dbab4e27650b07d4d159c305d08a9d578c3a3e

SHA256
674fc32cde82ed69cb8595bbea9f70f69097062c39bd6a3a505227a4f4a45344

SHA512
4a5bc7c005e573bf0cdb89489d676fb26c5fe116d397a6cd7a1ebb2cae9605b3d1657378e17d354cb102e93c39b32fa8d2963f375af37c871452f3170356101e

Download Submit
memory/452-132-0x0000000000000000-mapping.dmp

Download
memory/760-152-0x0000000000000000-mapping.dmp

Download
memory/4532-149-0x0000000000000000-mapping.dmp

Download