899391747cdda3a1f2379bd41f32af220b38b5115c290bdd473f8c6f5a485f8c

Analysis

max time kernel
164s
max time network
171s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25/11/2022, 14:18

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General

Target

899391747cdda3a1f2379bd41f32af220b38b5115c290bdd473f8c6f5a485f8c.exe
Size

2.1MB
MD5

f07fe73f56d37dad2c137c8da10d61a1
SHA1

97818b892a50e37e083b63b0f592d8daf8dc24a1
SHA256

899391747cdda3a1f2379bd41f32af220b38b5115c290bdd473f8c6f5a485f8c
SHA512

9f080cee78242f4161f611f735bb83717812f0ffbd608987e9dc27a0fcd22e8ef69f7e0dc3ad5711e0d19a7282391c5dc3f4bd5356f80e72d49199f02b002048
SSDEEP

49152:h1OsVhvaZG1MVEtzijkTvu2x/uw4B8FHFF6l:h1O0vaxMziy3a

Score

8^/10

adware discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3660	Hz4jhQAy2mAzD84.exe

Loads dropped DLL 3 IoCs

pid	Process
3660	Hz4jhQAy2mAzD84.exe
4780	regsvr32.exe
4772	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

Drops Chrome extension 5 IoCs

description	ioc	Process
File created	C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\ndgffkleihhehholhdfpofafegmhoheb\1.0\manifest.json	Hz4jhQAy2mAzD84.exe
File created	C:\Users\WDAGUtilityAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\ndgffkleihhehholhdfpofafegmhoheb\1.0\manifest.json	Hz4jhQAy2mAzD84.exe
File created	C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\ndgffkleihhehholhdfpofafegmhoheb\1.0\manifest.json	Hz4jhQAy2mAzD84.exe
File created	C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\ndgffkleihhehholhdfpofafegmhoheb\1.0\manifest.json	Hz4jhQAy2mAzD84.exe
File created	C:\Users\DefaultAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\ndgffkleihhehholhdfpofafegmhoheb\1.0\manifest.json	Hz4jhQAy2mAzD84.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

description	ioc	Process
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
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}	Hz4jhQAy2mAzD84.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\	Hz4jhQAy2mAzD84.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\{DBC80044-A445-435B-BC74-9C25C1C588A9}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}	Hz4jhQAy2mAzD84.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	Hz4jhQAy2mAzD84.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{761497BB-D6F0-462C-B6EB-D4DAF1D92D43}	regsvr32.exe

Drops file in Program Files directory 8 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\YOutubeAdBlockE\EYe6cx0os498W8.dll	Hz4jhQAy2mAzD84.exe
File created	C:\Program Files (x86)\YOutubeAdBlockE\EYe6cx0os498W8.tlb	Hz4jhQAy2mAzD84.exe
File opened for modification	C:\Program Files (x86)\YOutubeAdBlockE\EYe6cx0os498W8.tlb	Hz4jhQAy2mAzD84.exe
File created	C:\Program Files (x86)\YOutubeAdBlockE\EYe6cx0os498W8.dat	Hz4jhQAy2mAzD84.exe
File opened for modification	C:\Program Files (x86)\YOutubeAdBlockE\EYe6cx0os498W8.dat	Hz4jhQAy2mAzD84.exe
File created	C:\Program Files (x86)\YOutubeAdBlockE\EYe6cx0os498W8.x64.dll	Hz4jhQAy2mAzD84.exe
File opened for modification	C:\Program Files (x86)\YOutubeAdBlockE\EYe6cx0os498W8.x64.dll	Hz4jhQAy2mAzD84.exe
File created	C:\Program Files (x86)\YOutubeAdBlockE\EYe6cx0os498W8.dll	Hz4jhQAy2mAzD84.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4204 wrote to memory of 3660	4204	899391747cdda3a1f2379bd41f32af220b38b5115c290bdd473f8c6f5a485f8c.exe	79
PID 4204 wrote to memory of 3660	4204	899391747cdda3a1f2379bd41f32af220b38b5115c290bdd473f8c6f5a485f8c.exe	79
PID 4204 wrote to memory of 3660	4204	899391747cdda3a1f2379bd41f32af220b38b5115c290bdd473f8c6f5a485f8c.exe	79
PID 3660 wrote to memory of 4780	3660	Hz4jhQAy2mAzD84.exe	80
PID 3660 wrote to memory of 4780	3660	Hz4jhQAy2mAzD84.exe	80
PID 3660 wrote to memory of 4780	3660	Hz4jhQAy2mAzD84.exe	80
PID 4780 wrote to memory of 4772	4780	regsvr32.exe	81
PID 4780 wrote to memory of 4772	4780	regsvr32.exe	81

C:\Users\Admin\AppData\Local\Temp\899391747cdda3a1f2379bd41f32af220b38b5115c290bdd473f8c6f5a485f8c.exe
"C:\Users\Admin\AppData\Local\Temp\899391747cdda3a1f2379bd41f32af220b38b5115c290bdd473f8c6f5a485f8c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4204
- C:\Users\Admin\AppData\Local\Temp\7zSA22.tmp\Hz4jhQAy2mAzD84.exe
  .\Hz4jhQAy2mAzD84.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops Chrome extension
  - Installs/modifies Browser Helper Object
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:3660
- - C:\Windows\SysWOW64\regsvr32.exe
    regsvr32.exe /s "C:\Program Files (x86)\YOutubeAdBlockE\EYe6cx0os498W8.x64.dll"
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:4780
  - - C:\Windows\system32\regsvr32.exe
      /s "C:\Program Files (x86)\YOutubeAdBlockE\EYe6cx0os498W8.x64.dll"
      4⤵
      Loads dropped DLL
      Installs/modifies Browser Helper Object
      PID:4772

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\EYe6cx0os498W8.dat

Filesize
6KB

MD5
fdb98ff91419247c85e9dc2e3d852c80

SHA1
26ec31400ef5ee6c1a23f855d4370ab50c650564

SHA256
7be58bb778e426e5563266c5ac509607f0105bbf9cae392cd5a4c0a17fb4983b

SHA512
4ca672d5648ac01242f041e1349d6949b94e151e4e5a332a89562bb0be732163a68fbdef782981a5767463a71a3509292a00efaf415143eec47c4b56835b372f

Download Submit
C:\Program Files (x86)\YOutubeAdBlockE\EYe6cx0os498W8.dll

Filesize
618KB

MD5
f180a95d8673cd01ce4af0ff678fa099

SHA1
8592fe958436e14ef9ace437ac4445ecca22e35e

SHA256
d40aa49822621713e0f79f6c9a187468251fc22559cb1bbd6b5f71a94819eeb7

SHA512
3dda5f3133df4c00c03d8b3fb539b37e2e6b26d0384d3674cefa9595136f9eaa4b9d21c0e806a9ec3cfadfb782a30e344145abbf87bca813de056f84c6fb13c9

Download Submit
C:\Program Files (x86)\YOutubeAdBlockE\EYe6cx0os498W8.x64.dll

Filesize
695KB

MD5
2af06e7424e4f53fa8ee2b8daf4cdaa3

SHA1
0a09aa095e38211b8fc512d2e9f8f7cf12159a19

SHA256
81f98c4034227951bd4ad5e6d6a823bd112602f3550fd7066a01f16b8c8aca69

SHA512
6bcaa8998bd7971f41bebc8433be949cf48d98c0eb70c643b7b7a1b50d2b4cf66412efb170684f36f1987c1992ba88350f815ea18a3cf50caf8ce97bbb961b16

Download Submit
C:\Program Files (x86)\YOutubeAdBlockE\EYe6cx0os498W8.x64.dll

Filesize
695KB

MD5
2af06e7424e4f53fa8ee2b8daf4cdaa3

SHA1
0a09aa095e38211b8fc512d2e9f8f7cf12159a19

SHA256
81f98c4034227951bd4ad5e6d6a823bd112602f3550fd7066a01f16b8c8aca69

SHA512
6bcaa8998bd7971f41bebc8433be949cf48d98c0eb70c643b7b7a1b50d2b4cf66412efb170684f36f1987c1992ba88350f815ea18a3cf50caf8ce97bbb961b16

Download Submit
C:\Program Files (x86)\YOutubeAdBlockE\EYe6cx0os498W8.x64.dll

Filesize
695KB

MD5
2af06e7424e4f53fa8ee2b8daf4cdaa3

SHA1
0a09aa095e38211b8fc512d2e9f8f7cf12159a19

SHA256
81f98c4034227951bd4ad5e6d6a823bd112602f3550fd7066a01f16b8c8aca69

SHA512
6bcaa8998bd7971f41bebc8433be949cf48d98c0eb70c643b7b7a1b50d2b4cf66412efb170684f36f1987c1992ba88350f815ea18a3cf50caf8ce97bbb961b16

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA22.tmp\EYe6cx0os498W8.dll

Filesize
618KB

MD5
f180a95d8673cd01ce4af0ff678fa099

SHA1
8592fe958436e14ef9ace437ac4445ecca22e35e

SHA256
d40aa49822621713e0f79f6c9a187468251fc22559cb1bbd6b5f71a94819eeb7

SHA512
3dda5f3133df4c00c03d8b3fb539b37e2e6b26d0384d3674cefa9595136f9eaa4b9d21c0e806a9ec3cfadfb782a30e344145abbf87bca813de056f84c6fb13c9

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA22.tmp\EYe6cx0os498W8.tlb

Filesize
3KB

MD5
8af6f42a5b16ced04702514d47052053

SHA1
f06e43c9710e27b38063652217874f6fc8515ea0

SHA256
0fc752f18e2f21a6d0b45fb9769deefe70d4690e72225037a37d1dc0553ae8ed

SHA512
2d1fedf6693f0347d9265436fbc17515fa9a904db54170181ca7a6d5c64a4928494a20a1eb489d646602ed2769e570bfb5835bffd241a53a8fe64d5767b9234b

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA22.tmp\EYe6cx0os498W8.x64.dll

Filesize
695KB

MD5
2af06e7424e4f53fa8ee2b8daf4cdaa3

SHA1
0a09aa095e38211b8fc512d2e9f8f7cf12159a19

SHA256
81f98c4034227951bd4ad5e6d6a823bd112602f3550fd7066a01f16b8c8aca69

SHA512
6bcaa8998bd7971f41bebc8433be949cf48d98c0eb70c643b7b7a1b50d2b4cf66412efb170684f36f1987c1992ba88350f815ea18a3cf50caf8ce97bbb961b16

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA22.tmp\Hz4jhQAy2mAzD84.dat

Filesize
6KB

MD5
fdb98ff91419247c85e9dc2e3d852c80

SHA1
26ec31400ef5ee6c1a23f855d4370ab50c650564

SHA256
7be58bb778e426e5563266c5ac509607f0105bbf9cae392cd5a4c0a17fb4983b

SHA512
4ca672d5648ac01242f041e1349d6949b94e151e4e5a332a89562bb0be732163a68fbdef782981a5767463a71a3509292a00efaf415143eec47c4b56835b372f

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA22.tmp\Hz4jhQAy2mAzD84.exe

Filesize
634KB

MD5
bd1503d4eaae5e7f2a8cdbd9a88ec02a

SHA1
730280a7839bb46bdeeaa47797d926f8d57e1da1

SHA256
724380928512fc5261d5f42e64f7705fcdeae1410f24a8ec6b0a2ba783675cb4

SHA512
0dc06ce8e78f6b0ebbe65723791ea4ffde8a9d55534dda1b02e81f1a109fce77f26e4bdfb9fd18b5ca9f4d9ff2454e6b05eca325539148512f762b5d2f225c7b

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA22.tmp\Hz4jhQAy2mAzD84.exe

Filesize
634KB

MD5
bd1503d4eaae5e7f2a8cdbd9a88ec02a

SHA1
730280a7839bb46bdeeaa47797d926f8d57e1da1

SHA256
724380928512fc5261d5f42e64f7705fcdeae1410f24a8ec6b0a2ba783675cb4

SHA512
0dc06ce8e78f6b0ebbe65723791ea4ffde8a9d55534dda1b02e81f1a109fce77f26e4bdfb9fd18b5ca9f4d9ff2454e6b05eca325539148512f762b5d2f225c7b

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA22.tmp\ndgffkleihhehholhdfpofafegmhoheb\YCdTit.js

Filesize
5KB

MD5
6928312d2d4b384325075ca369aced85

SHA1
355fad3875aa71d80e9c3abf74e9d61b4a9c1f58

SHA256
a1256a288740c9c4a507faea5582be6ceeba49cb85ae6adecb6a93aa1b5954d8

SHA512
b4d1de8141cf72abe712811f0b02e98f3442703b49217ca8d15a100e32b81fb0825e86d98626a7753e3915f5b6f575a6f020f5a01834e76a14811d1766a664ef

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA22.tmp\ndgffkleihhehholhdfpofafegmhoheb\background.html

Filesize
143B

MD5
ca3f5f4d47382e24bf67f500714e1db0

SHA1
c5038857855deb8409afe8bd0f19d4c10953f747

SHA256
1a2b9a99acbb177d662dcd8015e8ea612894ce0daed4c2cc5d6741ea4561c5e9

SHA512
5219cb13aaaa8f5299b0f9982ea175147399f67406faa23ee013746b00ba3a6325c2a213978d57ee033d87563d5694dadba94e0447ab1dc5711011c0a8e1b910

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA22.tmp\ndgffkleihhehholhdfpofafegmhoheb\content.js

Filesize
144B

MD5
fca19198fd8af21016a8b1dec7980002

SHA1
fd01a47d14004e17a625efe66cc46a06c786cf40

SHA256
332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

SHA512
60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA22.tmp\ndgffkleihhehholhdfpofafegmhoheb\lsdb.js

Filesize
531B

MD5
36d98318ab2b3b2585a30984db328afb

SHA1
f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

SHA256
ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

SHA512
6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA22.tmp\ndgffkleihhehholhdfpofafegmhoheb\manifest.json

Filesize
507B

MD5
b7802e247292e3e777fea87d2d4fa581

SHA1
1fdb8d58cf34fe633b39df0962f42791f6ca56c5

SHA256
1c1d7725bf4c87f1e7622e5779c78ae8d4b69d245556b1d498627885d6be6bdc

SHA512
284dfe82ce219b09ef877040d2e1f7083be02e4b2ba40eebb0452057dc6eab792b0d541936c33bf6f4509a6d5a7057ba161538d21240593b6aa0fcfc68b1892f

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA22.tmp\[email protected]\bootstrap.js

Filesize
2KB

MD5
df13f711e20e9c80171846d4f2f7ae06

SHA1
56d29cda58427efe0e21d3880d39eb1b0ef60bee

SHA256
6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

SHA512
6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA22.tmp\[email protected]\chrome.manifest

Filesize
35B

MD5
4f823d68c2a38fc2a3467dd722a485d8

SHA1
2b6fbe4e1a33bc50a7ce5d17490af8a965c7f7d5

SHA256
9f89169e6d37dea1ec9fb1b71c1a9bb9b181c5230f6cdd0b88b852999f2918e7

SHA512
4b5366835c49b2ace130277f0980ab81f981e70e001ce363bdf08140104869c772b93050874b2ad60a6be9b2ad0dc1edfe601457c195b20ea082ffeb7ee82834

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA22.tmp\[email protected]\content\bg.js

Filesize
7KB

MD5
35e59bd9ff64dda0c6efdbb0ae78bb6f

SHA1
64fa089d693e736a60a6cfc5868440058cd9bbdd

SHA256
b109c626571f53260e475aff7c31e45912182b88bf13da446faf4c8885bce597

SHA512
2af571da9e19f97b317bd61b1137611f8f7331e6a534b4dc329530a4a7a71b85ca6d386f11cb34e5e4fd11c659ec44f619ac6743b29646031d2cfa57cc220bc7

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA22.tmp\[email protected]\install.rdf

Filesize
603B

MD5
5b23e523ac3548ed535cc9a58576c628

SHA1
109ddf6ea62e2f1cfe63522ac2d6df79bfee5821

SHA256
f8abaa8856532248ace3b7321090daaf01b1cad8a2e65e14fb8d9c54d9ee4a5c

SHA512
6e22e7f5c84958682939610f450572088870c410b6465208b71061164dc7ccbe384bb7269e841e01f97e88bf1a366ceab11a757b34794a505283fab633d903bd

Download Submit