efee497b181419707d359bb30c491ad1a628649bd1f4cdab9e45ae70b763d63e

Analysis

max time kernel
91s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 15:31

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General

Target

efee497b181419707d359bb30c491ad1a628649bd1f4cdab9e45ae70b763d63e.exe
Size

2.1MB
MD5

8999cb74343edefdc6f51d9abf9f6a31
SHA1

8f445366a91a979cac7aab45b93866d3aba35c42
SHA256

efee497b181419707d359bb30c491ad1a628649bd1f4cdab9e45ae70b763d63e
SHA512

e6ddd572924fc720fd3c14b46432bf2daeb7581e433fdc46d9bd02881078623102b4eac30a08c3c046a1d69974c3c3ba541f6e5b94122ed78a120dd60d3e473d
SSDEEP

49152:h1OsaAxPqbaJ0CqWfTAeP20icuFMDoiXrBSdCIlE05XwjXr3X:h1O9Axib7CqWfTAeP2vaDhtSdp4

Score

8^/10

adware discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

ej47FdSYCE0ysdk.exe

pid process

2168 ej47FdSYCE0ysdk.exe
Loads dropped DLL 3 IoCs

Processes:

ej47FdSYCE0ysdk.exeregsvr32.exeregsvr32.exe

pid process

2168 ej47FdSYCE0ysdk.exe
4356 regsvr32.exe
2748 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
2168	ej47FdSYCE0ysdk.exe

pid	process
2168	ej47FdSYCE0ysdk.exe
4356	regsvr32.exe
2748	regsvr32.exe

Drops Chrome extension 5 IoCs

Processes:

ej47FdSYCE0ysdk.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\oflbekffmpabolblkemagffdchlodmhf\2.0\manifest.json	ej47FdSYCE0ysdk.exe
File created	C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\oflbekffmpabolblkemagffdchlodmhf\2.0\manifest.json	ej47FdSYCE0ysdk.exe
File created	C:\Users\DefaultAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\oflbekffmpabolblkemagffdchlodmhf\2.0\manifest.json	ej47FdSYCE0ysdk.exe
File created	C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\oflbekffmpabolblkemagffdchlodmhf\2.0\manifest.json	ej47FdSYCE0ysdk.exe
File created	C:\Users\WDAGUtilityAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\oflbekffmpabolblkemagffdchlodmhf\2.0\manifest.json	ej47FdSYCE0ysdk.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:

ej47FdSYCE0ysdk.exeregsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\	ej47FdSYCE0ysdk.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\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}	ej47FdSYCE0ysdk.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}	ej47FdSYCE0ysdk.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	ej47FdSYCE0ysdk.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{DBC80044-A445-435B-BC74-9C25C1C588A9}	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:

ej47FdSYCE0ysdk.exe

description	ioc	process
File created	C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.tlb	ej47FdSYCE0ysdk.exe
File opened for modification	C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.tlb	ej47FdSYCE0ysdk.exe
File created	C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.dat	ej47FdSYCE0ysdk.exe
File opened for modification	C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.dat	ej47FdSYCE0ysdk.exe
File created	C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.x64.dll	ej47FdSYCE0ysdk.exe
File opened for modification	C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.x64.dll	ej47FdSYCE0ysdk.exe
File created	C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.dll	ej47FdSYCE0ysdk.exe
File opened for modification	C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.dll	ej47FdSYCE0ysdk.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

ej47FdSYCE0ysdk.exe

pid process

2168 ej47FdSYCE0ysdk.exe
2168 ej47FdSYCE0ysdk.exe

pid	process
2168	ej47FdSYCE0ysdk.exe
2168	ej47FdSYCE0ysdk.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

efee497b181419707d359bb30c491ad1a628649bd1f4cdab9e45ae70b763d63e.exeej47FdSYCE0ysdk.exeregsvr32.exe

description	pid	process	target process
PID 4960 wrote to memory of 2168	4960	efee497b181419707d359bb30c491ad1a628649bd1f4cdab9e45ae70b763d63e.exe	ej47FdSYCE0ysdk.exe
PID 4960 wrote to memory of 2168	4960	efee497b181419707d359bb30c491ad1a628649bd1f4cdab9e45ae70b763d63e.exe	ej47FdSYCE0ysdk.exe
PID 4960 wrote to memory of 2168	4960	efee497b181419707d359bb30c491ad1a628649bd1f4cdab9e45ae70b763d63e.exe	ej47FdSYCE0ysdk.exe
PID 2168 wrote to memory of 4356	2168	ej47FdSYCE0ysdk.exe	regsvr32.exe
PID 2168 wrote to memory of 4356	2168	ej47FdSYCE0ysdk.exe	regsvr32.exe
PID 2168 wrote to memory of 4356	2168	ej47FdSYCE0ysdk.exe	regsvr32.exe
PID 4356 wrote to memory of 2748	4356	regsvr32.exe	regsvr32.exe
PID 4356 wrote to memory of 2748	4356	regsvr32.exe	regsvr32.exe

C:\Users\Admin\AppData\Local\Temp\efee497b181419707d359bb30c491ad1a628649bd1f4cdab9e45ae70b763d63e.exe
"C:\Users\Admin\AppData\Local\Temp\efee497b181419707d359bb30c491ad1a628649bd1f4cdab9e45ae70b763d63e.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4960

C:\Users\Admin\AppData\Local\Temp\7zSBBD3.tmp\ej47FdSYCE0ysdk.exe
.\ej47FdSYCE0ysdk.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:2168

C:\Windows\SysWOW64\regsvr32.exe
regsvr32.exe /s "C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.x64.dll"
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4356

C:\Windows\system32\regsvr32.exe
/s "C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.x64.dll"
4⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
PID:2748

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.dat
Filesize
6KB

MD5
a1495739f9e2c23583e941264354fb55

SHA1
3e61cf9d385712ca862d82a6ae483ac0b2ebb22b

SHA256
93c91c05d0207bceb58fa43e612bad3767c88d316ee9edc66d3eb02e1ffb5734

SHA512
6c205306c3c52170faa7dc295995195d8ae49e1ab32fb64c89478887cea54ee5d917bd9cb98db3ccdb6d6bf23eaae74a04ac4942cead2d7e0c73a566a9941daa

Download Submit
C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.dll
Filesize
617KB

MD5
840d829dddf8d035522e4f3547f72799

SHA1
1f669f414a0935ef806bdb8a93d2755f00104519

SHA256
a8405b5162305f768093c227ad9ece6ddd74f6dfe17fd0878a4e64e61e125d42

SHA512
e447ed7f6bbaacd8523984bae1584f39c4c38e93abd43d4e25c8056143d3228a3993d7aab8fd92d2e6baf0157a1d8638a1254eed037f3eb64250b6ca586913c7

Download Submit
C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.x64.dll
Filesize
697KB

MD5
09b1827343abfccf344d2b04268c1b87

SHA1
1c60bbd56c0b33be582c3dac053e9b28b94d588b

SHA256
a9181af1ead8778d27a22e862145aa5e1dd7ac40cf6e994f8c6b1ae7b58f302a

SHA512
cb4ac4ff93405372a7ab65e1910d58f88a30c9b4d62c06b84fd3fd5f51ca10459c351efcc394418e27aafa27e87bd1a359d20006804da8f171b37cf2fd26f965

Download Submit
C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.x64.dll
Filesize
697KB

MD5
09b1827343abfccf344d2b04268c1b87

SHA1
1c60bbd56c0b33be582c3dac053e9b28b94d588b

SHA256
a9181af1ead8778d27a22e862145aa5e1dd7ac40cf6e994f8c6b1ae7b58f302a

SHA512
cb4ac4ff93405372a7ab65e1910d58f88a30c9b4d62c06b84fd3fd5f51ca10459c351efcc394418e27aafa27e87bd1a359d20006804da8f171b37cf2fd26f965

Download Submit
C:\Program Files (x86)\GoSave\pZw4TUjA2pHih8.x64.dll
Filesize
697KB

MD5
09b1827343abfccf344d2b04268c1b87

SHA1
1c60bbd56c0b33be582c3dac053e9b28b94d588b

SHA256
a9181af1ead8778d27a22e862145aa5e1dd7ac40cf6e994f8c6b1ae7b58f302a

SHA512
cb4ac4ff93405372a7ab65e1910d58f88a30c9b4d62c06b84fd3fd5f51ca10459c351efcc394418e27aafa27e87bd1a359d20006804da8f171b37cf2fd26f965

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSBBD3.tmp\[email protected]\bootstrap.js
Filesize
2KB

MD5
df13f711e20e9c80171846d4f2f7ae06

SHA1
56d29cda58427efe0e21d3880d39eb1b0ef60bee

SHA256
6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

SHA512
6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSBBD3.tmp\[email protected]\chrome.manifest
Filesize
35B

MD5
438ebe6e2f2f59a0265be6e05eb48902

SHA1
d18329b8c09dfb0252f53f7f8a786c00469e27e2

SHA256
0687d1852d3f9f35b8762debc649ead205542cbfba7a1a034f0d05a62a30dea7

SHA512
c3b0bc7fa980fb87e2e0b35b8acce6ba26549604f00a0bd0ef9ffae797a54fa26c7e6ce9ab5f397faa73519844603f3e49cfa015f1d8feacd99ee11f4674a4aa

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSBBD3.tmp\[email protected]\content\bg.js
Filesize
7KB

MD5
e6a26a005fc77b7bf05bcd1a7be04308

SHA1
23097ae4fbfe068c4c86e6e8968fe3d3fd925b19

SHA256
b9e3c13902501dc17d1c3ac247ef884643e454a641725f4cd9f5189649eb335f

SHA512
30aa93116ef41a53f6266b862df07aef2de3dc7e8e48b7b8f7b8dfc86f6d2ee935febb3d0377e1505f178c4f0579714c7c4f4032f460455b196e90fcf136f930

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSBBD3.tmp\[email protected]\install.rdf
Filesize
594B

MD5
2b857013840563d10e2e6a791d6290d5

SHA1
3bb24ae4bf5376c73c3dabd900d0c2535d86c83c

SHA256
0402620180c9bb8ce8241381c87fd4d04c49ce024ad601ff6133ec6589ec5069

SHA512
fab8efa9b87305e88c5634173a5fcc8ae459f3d970f072075720fb25a5bb84029c9765cac0a7d80659257fc3345f2fa75d110a82faec424b018b232a2ca2a7ec

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSBBD3.tmp\ej47FdSYCE0ysdk.dat
Filesize
6KB

MD5
a1495739f9e2c23583e941264354fb55

SHA1
3e61cf9d385712ca862d82a6ae483ac0b2ebb22b

SHA256
93c91c05d0207bceb58fa43e612bad3767c88d316ee9edc66d3eb02e1ffb5734

SHA512
6c205306c3c52170faa7dc295995195d8ae49e1ab32fb64c89478887cea54ee5d917bd9cb98db3ccdb6d6bf23eaae74a04ac4942cead2d7e0c73a566a9941daa

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSBBD3.tmp\ej47FdSYCE0ysdk.exe
Filesize
634KB

MD5
39bca0c0295e43a1d256f93c4bc41a7d

SHA1
163629228f4ad397c594ae4acc1162d2990f7d5f

SHA256
2e46c5d7d549885057d92525f35b60a19cb428600a397245e5f6ce0238b5e1cd

SHA512
e16570bea11aa8680f4e547f099e8c099c1654e6a3060fca871a42dffb9e256811f5aa9bba9f00dc14b218ad32b56c916987b3a270893540a0992f832bcf2a4d

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSBBD3.tmp\ej47FdSYCE0ysdk.exe
Filesize
634KB

MD5
39bca0c0295e43a1d256f93c4bc41a7d

SHA1
163629228f4ad397c594ae4acc1162d2990f7d5f

SHA256
2e46c5d7d549885057d92525f35b60a19cb428600a397245e5f6ce0238b5e1cd

SHA512
e16570bea11aa8680f4e547f099e8c099c1654e6a3060fca871a42dffb9e256811f5aa9bba9f00dc14b218ad32b56c916987b3a270893540a0992f832bcf2a4d

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSBBD3.tmp\oflbekffmpabolblkemagffdchlodmhf\background.html
Filesize
140B

MD5
7fea1a097b784f4ec45f03d42de04ad1

SHA1
142f44da22123d7f7480a843ca380dafed13efb3

SHA256
83db4ebacbf8fbf2f7a452775b73961f3bc60e2fdfaa8c7416aef69c58d8adeb

SHA512
41c22dbe49ec3b61ae6ed5491eee5171d4d47b4dc010e73980c8cfa616a81afda7f4de0f24b5c12cafacb017e68db213e62d7158fd9be895e655ea1dc866bf9e

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSBBD3.tmp\oflbekffmpabolblkemagffdchlodmhf\content.js
Filesize
144B

MD5
fca19198fd8af21016a8b1dec7980002

SHA1
fd01a47d14004e17a625efe66cc46a06c786cf40

SHA256
332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

SHA512
60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSBBD3.tmp\oflbekffmpabolblkemagffdchlodmhf\lsdb.js
Filesize
531B

MD5
36d98318ab2b3b2585a30984db328afb

SHA1
f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

SHA256
ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

SHA512
6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSBBD3.tmp\oflbekffmpabolblkemagffdchlodmhf\manifest.json
Filesize
498B

MD5
640199ea4621e34510de919f6a54436f

SHA1
dc65dbfad02bd2688030bd56ca1cab85917a9937

SHA256
e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

SHA512
d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSBBD3.tmp\oflbekffmpabolblkemagffdchlodmhf\xQ1.js
Filesize
5KB

MD5
cbe90d55fbc3ca18445d85c74b6cafa1

SHA1
4ccc5adf57180f80b5837ce5451cf03fc13105fe

SHA256
eadbfd90f2b3a0ed811574e774de8738f1b00f87e1309c1e25b879b66e01945a

SHA512
a16943a116a9d7c76e16957539bb126453510a058cafa651ed00905b8528f4246494909f2ee6a0c1815b25f706cc554dbd870b8c8f6437c4490b1994ea44f7c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSBBD3.tmp\pZw4TUjA2pHih8.dll
Filesize
617KB

MD5
840d829dddf8d035522e4f3547f72799

SHA1
1f669f414a0935ef806bdb8a93d2755f00104519

SHA256
a8405b5162305f768093c227ad9ece6ddd74f6dfe17fd0878a4e64e61e125d42

SHA512
e447ed7f6bbaacd8523984bae1584f39c4c38e93abd43d4e25c8056143d3228a3993d7aab8fd92d2e6baf0157a1d8638a1254eed037f3eb64250b6ca586913c7

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSBBD3.tmp\pZw4TUjA2pHih8.tlb
Filesize
3KB

MD5
6fb4d3c40d62e1e378e92280f2cd93a4

SHA1
cdcd20abfab5c8f24b0bf2e24b43930a33b4d147

SHA256
ffe3ee2134494c6e175cf01e0fc518402384a1f79a46a37f441e6e3c74183983

SHA512
960ecc2ce3d9ee0a828780d0770a4966211a55c8587e36b460c3c5d2bf7a338bd538c13bb07e93b647b5c1056fc0c14f90cf59a4b13508350922cda38ab6538d

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSBBD3.tmp\pZw4TUjA2pHih8.x64.dll
Filesize
697KB

MD5
09b1827343abfccf344d2b04268c1b87

SHA1
1c60bbd56c0b33be582c3dac053e9b28b94d588b

SHA256
a9181af1ead8778d27a22e862145aa5e1dd7ac40cf6e994f8c6b1ae7b58f302a

SHA512
cb4ac4ff93405372a7ab65e1910d58f88a30c9b4d62c06b84fd3fd5f51ca10459c351efcc394418e27aafa27e87bd1a359d20006804da8f171b37cf2fd26f965

Download Submit
memory/2168-132-0x0000000000000000-mapping.dmp

Download
memory/2748-152-0x0000000000000000-mapping.dmp

Download
memory/4356-149-0x0000000000000000-mapping.dmp

Download