c51929c72e39559710614b7ffacb4f12df0e29398155937b385b9ce94d765f9e

Analysis

max time kernel
203s
max time network
206s
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 19:33

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General

Target

c51929c72e39559710614b7ffacb4f12df0e29398155937b385b9ce94d765f9e.exe
Size

2.5MB
MD5

8bfb4d6f132b4c45163ce277fc8b5c21
SHA1

b999b928443e88819ddddd4ec1a03b944fdc90a2
SHA256

c51929c72e39559710614b7ffacb4f12df0e29398155937b385b9ce94d765f9e
SHA512

c68e2109bb60d351da3bc910e8ae94e3737b42a2bd238a12f98027e807dc734e9c3611bdb2ae2c37d80ac9b1149657ca27b8fbd85800758bc86a04d1d2df0eed
SSDEEP

49152:h1OsqsNQH0eNGTTOxTnkSM1XN+QMz3p6bOkAk+YetEW6FOCMwEFhjzdUwX:h1OrH0eNGunkt3+1z3p6iVC0

Score

8^/10

adware discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

ZiZ5DZCDVRwfOyu.exe

pid process

1304 ZiZ5DZCDVRwfOyu.exe
Loads dropped DLL 3 IoCs

Processes:

ZiZ5DZCDVRwfOyu.exeregsvr32.exeregsvr32.exe

pid process

1304 ZiZ5DZCDVRwfOyu.exe
2160 regsvr32.exe
3580 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
1304	ZiZ5DZCDVRwfOyu.exe

pid	process
1304	ZiZ5DZCDVRwfOyu.exe
2160	regsvr32.exe
3580	regsvr32.exe

Drops Chrome extension 5 IoCs

Processes:

ZiZ5DZCDVRwfOyu.exe

description	ioc	process
File created	C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\gbcafnnpfkojjoiidcgiembdlcdacahj\3.7\manifest.json	ZiZ5DZCDVRwfOyu.exe
File created	C:\Users\DefaultAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\gbcafnnpfkojjoiidcgiembdlcdacahj\3.7\manifest.json	ZiZ5DZCDVRwfOyu.exe
File created	C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\gbcafnnpfkojjoiidcgiembdlcdacahj\3.7\manifest.json	ZiZ5DZCDVRwfOyu.exe
File created	C:\Users\WDAGUtilityAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\gbcafnnpfkojjoiidcgiembdlcdacahj\3.7\manifest.json	ZiZ5DZCDVRwfOyu.exe
File created	C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\gbcafnnpfkojjoiidcgiembdlcdacahj\3.7\manifest.json	ZiZ5DZCDVRwfOyu.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:

ZiZ5DZCDVRwfOyu.exeregsvr32.exe

description	ioc	process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}	ZiZ5DZCDVRwfOyu.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}	ZiZ5DZCDVRwfOyu.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	ZiZ5DZCDVRwfOyu.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\	ZiZ5DZCDVRwfOyu.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\	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\{DBC80044-A445-435B-BC74-9C25C1C588A9}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	regsvr32.exe

Drops file in Program Files directory 8 IoCs

Processes:

ZiZ5DZCDVRwfOyu.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\websave\wohs460ufErNmC.tlb	ZiZ5DZCDVRwfOyu.exe
File created	C:\Program Files (x86)\websave\wohs460ufErNmC.dat	ZiZ5DZCDVRwfOyu.exe
File opened for modification	C:\Program Files (x86)\websave\wohs460ufErNmC.dat	ZiZ5DZCDVRwfOyu.exe
File created	C:\Program Files (x86)\websave\wohs460ufErNmC.x64.dll	ZiZ5DZCDVRwfOyu.exe
File opened for modification	C:\Program Files (x86)\websave\wohs460ufErNmC.x64.dll	ZiZ5DZCDVRwfOyu.exe
File created	C:\Program Files (x86)\websave\wohs460ufErNmC.dll	ZiZ5DZCDVRwfOyu.exe
File opened for modification	C:\Program Files (x86)\websave\wohs460ufErNmC.dll	ZiZ5DZCDVRwfOyu.exe
File created	C:\Program Files (x86)\websave\wohs460ufErNmC.tlb	ZiZ5DZCDVRwfOyu.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

ZiZ5DZCDVRwfOyu.exe

pid process

1304 ZiZ5DZCDVRwfOyu.exe
1304 ZiZ5DZCDVRwfOyu.exe

pid	process
1304	ZiZ5DZCDVRwfOyu.exe
1304	ZiZ5DZCDVRwfOyu.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

c51929c72e39559710614b7ffacb4f12df0e29398155937b385b9ce94d765f9e.exeZiZ5DZCDVRwfOyu.exeregsvr32.exe

description	pid	process	target process
PID 1660 wrote to memory of 1304	1660	c51929c72e39559710614b7ffacb4f12df0e29398155937b385b9ce94d765f9e.exe	ZiZ5DZCDVRwfOyu.exe
PID 1660 wrote to memory of 1304	1660	c51929c72e39559710614b7ffacb4f12df0e29398155937b385b9ce94d765f9e.exe	ZiZ5DZCDVRwfOyu.exe
PID 1660 wrote to memory of 1304	1660	c51929c72e39559710614b7ffacb4f12df0e29398155937b385b9ce94d765f9e.exe	ZiZ5DZCDVRwfOyu.exe
PID 1304 wrote to memory of 2160	1304	ZiZ5DZCDVRwfOyu.exe	regsvr32.exe
PID 1304 wrote to memory of 2160	1304	ZiZ5DZCDVRwfOyu.exe	regsvr32.exe
PID 1304 wrote to memory of 2160	1304	ZiZ5DZCDVRwfOyu.exe	regsvr32.exe
PID 2160 wrote to memory of 3580	2160	regsvr32.exe	regsvr32.exe
PID 2160 wrote to memory of 3580	2160	regsvr32.exe	regsvr32.exe

C:\Users\Admin\AppData\Local\Temp\c51929c72e39559710614b7ffacb4f12df0e29398155937b385b9ce94d765f9e.exe
"C:\Users\Admin\AppData\Local\Temp\c51929c72e39559710614b7ffacb4f12df0e29398155937b385b9ce94d765f9e.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1660

C:\Users\Admin\AppData\Local\Temp\7zS5004.tmp\ZiZ5DZCDVRwfOyu.exe
.\ZiZ5DZCDVRwfOyu.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:1304

C:\Windows\SysWOW64\regsvr32.exe
regsvr32.exe /s "C:\Program Files (x86)\websave\wohs460ufErNmC.x64.dll"
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2160

C:\Windows\system32\regsvr32.exe
/s "C:\Program Files (x86)\websave\wohs460ufErNmC.x64.dll"
4⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
PID:3580

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)\websave\wohs460ufErNmC.dat
Filesize
6KB

MD5
18bf0e81b08ed344e2e52c65b45c8d8b

SHA1
d7a4a49a67ca2835849a6b57876a879db9babb24

SHA256
159cdb7a75c36bb927ec5989d455a3b65b24e1ec5c6f81d2ea95a5f47cc03910

SHA512
079bf5c12711c074d5335b913c8860d038bbe0850346768fd2facd1db8d768f1d96f0335420d2119ea8c469ea3ed7129ac55ffbe0848983776b58385caec88ba

Download Submit
C:\Program Files (x86)\websave\wohs460ufErNmC.dll
Filesize
754KB

MD5
0ea14ffbf9bc129f87d5a633ca028a12

SHA1
c91e00a9d6590556a4c13a46cb6c934f84cf2b2b

SHA256
9206058e3e04af4fb8d5c05ae8f088cf0a289ea0e4cd692c4f2d76439adb0d47

SHA512
0cfd075335346690ead8c5aef2340b56ce07c59d6243ad102fee0053d64f1a7847e56ba27f5bbcac4048f2c1cf70038e7cdffafe1cc28994603fdd65d2bf7bb2

Download Submit
C:\Program Files (x86)\websave\wohs460ufErNmC.x64.dll
Filesize
891KB

MD5
bef492ffc032769cde00802f48a17fab

SHA1
a91e733c1269eb785f8e23dc475acac7432f0563

SHA256
473507950695ec743b98e5ef4b8970b2c7e6936556903c94f7fa88917265255d

SHA512
4f61d5f3a45d20cd00ed7ee6b874bf2dcbf248b8f65dfd8580c7148d6c71c316cace409be675a2ea919e8a12caf8690fafaf14c0f5479df55689401d2432afa0

Download Submit
C:\Program Files (x86)\websave\wohs460ufErNmC.x64.dll
Filesize
891KB

MD5
bef492ffc032769cde00802f48a17fab

SHA1
a91e733c1269eb785f8e23dc475acac7432f0563

SHA256
473507950695ec743b98e5ef4b8970b2c7e6936556903c94f7fa88917265255d

SHA512
4f61d5f3a45d20cd00ed7ee6b874bf2dcbf248b8f65dfd8580c7148d6c71c316cace409be675a2ea919e8a12caf8690fafaf14c0f5479df55689401d2432afa0

Download Submit
C:\Program Files (x86)\websave\wohs460ufErNmC.x64.dll
Filesize
891KB

MD5
bef492ffc032769cde00802f48a17fab

SHA1
a91e733c1269eb785f8e23dc475acac7432f0563

SHA256
473507950695ec743b98e5ef4b8970b2c7e6936556903c94f7fa88917265255d

SHA512
4f61d5f3a45d20cd00ed7ee6b874bf2dcbf248b8f65dfd8580c7148d6c71c316cace409be675a2ea919e8a12caf8690fafaf14c0f5479df55689401d2432afa0

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS5004.tmp\ZiZ5DZCDVRwfOyu.dat
Filesize
6KB

MD5
18bf0e81b08ed344e2e52c65b45c8d8b

SHA1
d7a4a49a67ca2835849a6b57876a879db9babb24

SHA256
159cdb7a75c36bb927ec5989d455a3b65b24e1ec5c6f81d2ea95a5f47cc03910

SHA512
079bf5c12711c074d5335b913c8860d038bbe0850346768fd2facd1db8d768f1d96f0335420d2119ea8c469ea3ed7129ac55ffbe0848983776b58385caec88ba

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS5004.tmp\ZiZ5DZCDVRwfOyu.exe
Filesize
774KB

MD5
fac681323e2e0ea322ef16fa551cf1e8

SHA1
744f89e591a6ced737cfe9214ce09c263de50211

SHA256
537f2df71a2f21f943a39d1c6d093a442e7ee975ed3e29b733b8bc5bf646793c

SHA512
22626bd0e79edac062b61d64234f563e3a8218703276a19a0b01749e2cad8387c8bd39bfe13810b787fb9e4c7f1669ea542e36bbf63c7c243fc68bb6fdf5c7b2

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS5004.tmp\ZiZ5DZCDVRwfOyu.exe
Filesize
774KB

MD5
fac681323e2e0ea322ef16fa551cf1e8

SHA1
744f89e591a6ced737cfe9214ce09c263de50211

SHA256
537f2df71a2f21f943a39d1c6d093a442e7ee975ed3e29b733b8bc5bf646793c

SHA512
22626bd0e79edac062b61d64234f563e3a8218703276a19a0b01749e2cad8387c8bd39bfe13810b787fb9e4c7f1669ea542e36bbf63c7c243fc68bb6fdf5c7b2

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS5004.tmp\gbcafnnpfkojjoiidcgiembdlcdacahj\Ch2lbJNa.js
Filesize
5KB

MD5
9b890818ec1dc7032f700b944d56df2a

SHA1
aa8f436c7a0a0f13958ce486b623e9c3019f0d96

SHA256
b6dcd11300e446297f8a404ee1ee81504a83176b6d79acd6153eab1d07fe3e20

SHA512
0bee736deb3d50ce5cb2bcf820bb804c3939f37cc6d1c93973685e564c6e4beea558c0e4a8029707349a530a86c8befba50dfb70f74732253e83c756ccfe290e

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS5004.tmp\gbcafnnpfkojjoiidcgiembdlcdacahj\background.html
Filesize
145B

MD5
e83d22705f6b7c60a1e4f6d2fe410ea8

SHA1
d389c995d3ae44636ccf36117b61a1e8305bef43

SHA256
74b47bda5508b2a3a12409039b1ebdeffb35d3bd6f81a75d1d7bad06ff5406da

SHA512
4a2e5647aec49de9950a0f5e7ef4b5fe469c205017c2c8b2623413c2e92a8b107029d943cdb7bb7e56d10444e173f50dc472bb1b7820bf7efa7c0f65a1d59818

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS5004.tmp\gbcafnnpfkojjoiidcgiembdlcdacahj\content.js
Filesize
144B

MD5
fca19198fd8af21016a8b1dec7980002

SHA1
fd01a47d14004e17a625efe66cc46a06c786cf40

SHA256
332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

SHA512
60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS5004.tmp\gbcafnnpfkojjoiidcgiembdlcdacahj\lsdb.js
Filesize
531B

MD5
36d98318ab2b3b2585a30984db328afb

SHA1
f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

SHA256
ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

SHA512
6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS5004.tmp\gbcafnnpfkojjoiidcgiembdlcdacahj\manifest.json
Filesize
499B

MD5
f6da34f727bd43075d13ea3c24cc5faf

SHA1
8aede51366d86e39b14718228831c1c198b4355c

SHA256
91b8694c1ec2c0408c90ac98e8c40e4c08f1a04365163d44b1507a0d7838d221

SHA512
0326e0734db861ce2404f6b338e517ae2ec6c3cf0bdb62764ccd1fa4e710750ecb2622bdb1d45c737bfaf210227b229d8e87d99942088a8ee0ed4ca39c013527

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS5004.tmp\[email protected]\bootstrap.js
Filesize
2KB

MD5
df13f711e20e9c80171846d4f2f7ae06

SHA1
56d29cda58427efe0e21d3880d39eb1b0ef60bee

SHA256
6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

SHA512
6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS5004.tmp\[email protected]\chrome.manifest
Filesize
35B

MD5
9e46882a8f23d82ebfe29f32a830b95c

SHA1
20b2e241f577295ef85ec7a56b52e589c9e05a01

SHA256
de79eee2fddda0fef138a3f00e4c4cf8cb915070a2d636227d0c163194749e3c

SHA512
7dca0f68b1a9b99065d92a59c3d1b22d9ec1c01d9a75e62583442380953cb3e4b49ec371b96d5409ea007e2a7f74c3091f211ffa423221a291f3579a10741da0

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS5004.tmp\[email protected]\content\bg.js
Filesize
7KB

MD5
f1cce27ffd8b5fbb2618b4baf0935a16

SHA1
3895b74185542d739a863180f7f3d8095d4ae39a

SHA256
bc3e2c7a6a60b23c09c9ee0dbc9ec77081c1107c350b187ae78dc504793f6fa4

SHA512
186bb29d109c514a57509a700899d3271d95bfb04e714d4effae9f4f0c8299e3a2982163fa68b1976c6ec8eedf1249d9be63381d0d72a8f7b3bb0352f93122da

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS5004.tmp\[email protected]\install.rdf
Filesize
595B

MD5
e98dca25ea63ba8d515a25510500984c

SHA1
7599b3bf5c4d374b3b61324125a5c4b4e260f069

SHA256
d84cd20f49c6c9cbffd3652e1da5d5c89e53664aac775eec03f93789322f03ca

SHA512
c5dcc4f3af47d045846c536247867e1749e670bd9c22926bbed347dd6977092e4a474570fe489098ce8ad4faf0c952a7c548d86d1b3bac9e091012ba0384bcca

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS5004.tmp\wohs460ufErNmC.dll
Filesize
754KB

MD5
0ea14ffbf9bc129f87d5a633ca028a12

SHA1
c91e00a9d6590556a4c13a46cb6c934f84cf2b2b

SHA256
9206058e3e04af4fb8d5c05ae8f088cf0a289ea0e4cd692c4f2d76439adb0d47

SHA512
0cfd075335346690ead8c5aef2340b56ce07c59d6243ad102fee0053d64f1a7847e56ba27f5bbcac4048f2c1cf70038e7cdffafe1cc28994603fdd65d2bf7bb2

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS5004.tmp\wohs460ufErNmC.tlb
Filesize
3KB

MD5
4ab2bba691d66beca01f76ac65546fe8

SHA1
16f05ce91f3e2fe4b43452e24d56836fc65615af

SHA256
12816936003f13a1711de73328e38f311926a4cc9d1a836f46c9ccc02b6fb06f

SHA512
f034390bfd57618bbfd218c3df9e465dda8f4fa51fc0445c74e246472a4cde2bc0bfe4607cbc8cb31ac0edff62a84e954179fadddc2b644b8726cfa3e01694a2

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS5004.tmp\wohs460ufErNmC.x64.dll
Filesize
891KB

MD5
bef492ffc032769cde00802f48a17fab

SHA1
a91e733c1269eb785f8e23dc475acac7432f0563

SHA256
473507950695ec743b98e5ef4b8970b2c7e6936556903c94f7fa88917265255d

SHA512
4f61d5f3a45d20cd00ed7ee6b874bf2dcbf248b8f65dfd8580c7148d6c71c316cace409be675a2ea919e8a12caf8690fafaf14c0f5479df55689401d2432afa0

Download Submit
memory/1304-132-0x0000000000000000-mapping.dmp

Download
memory/2160-149-0x0000000000000000-mapping.dmp

Download
memory/3580-152-0x0000000000000000-mapping.dmp

Download