cf0b69e92e81598cd18324826bac7c81e3e0d4628dadd3b4a319bf3684684df9

Analysis

max time kernel
172s
max time network
181s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2022 19:00

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General

Target

cf0b69e92e81598cd18324826bac7c81e3e0d4628dadd3b4a319bf3684684df9.exe
Size

2.5MB
MD5

bcf20538091ad90b5bb2cdb8ca11edc2
SHA1

889ab671b6ce642a4a7c83d5d5e8f06541e7b245
SHA256

cf0b69e92e81598cd18324826bac7c81e3e0d4628dadd3b4a319bf3684684df9
SHA512

47b081580d7a0aab660823c278b00c0880cce6f0badf14aec24d6f0bcd3d258587eccd48ce37fa806a0c6d56dbbeb4ea4d9b3c6ac751b6b87f3afcf95aa1073a
SSDEEP

49152:h1OsVSQeb71DLvFzAqRmyyVchO4apKHcHhXa3FXWlPC1IS5zf:h1OQSQY1DCqkck4apyLqE

Score

8^/10

adware discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

28RZ320aOn5CpAw.exe

pid process

1136 28RZ320aOn5CpAw.exe
Loads dropped DLL 3 IoCs

Processes:

28RZ320aOn5CpAw.exeregsvr32.exeregsvr32.exe

pid process

1136 28RZ320aOn5CpAw.exe
4928 regsvr32.exe
4864 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
1136	28RZ320aOn5CpAw.exe

pid	process
1136	28RZ320aOn5CpAw.exe
4928	regsvr32.exe
4864	regsvr32.exe

Drops Chrome extension 5 IoCs

Processes:

28RZ320aOn5CpAw.exe

description	ioc	process
File created	C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\lljlanobcfihpgocmapdpbhiabdnkdee\2.0\manifest.json	28RZ320aOn5CpAw.exe
File created	C:\Users\DefaultAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\lljlanobcfihpgocmapdpbhiabdnkdee\2.0\manifest.json	28RZ320aOn5CpAw.exe
File created	C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\lljlanobcfihpgocmapdpbhiabdnkdee\2.0\manifest.json	28RZ320aOn5CpAw.exe
File created	C:\Users\WDAGUtilityAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\lljlanobcfihpgocmapdpbhiabdnkdee\2.0\manifest.json	28RZ320aOn5CpAw.exe
File created	C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\lljlanobcfihpgocmapdpbhiabdnkdee\2.0\manifest.json	28RZ320aOn5CpAw.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:

regsvr32.exe28RZ320aOn5CpAw.exe

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}	28RZ320aOn5CpAw.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	28RZ320aOn5CpAw.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\	28RZ320aOn5CpAw.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}	28RZ320aOn5CpAw.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

Drops file in Program Files directory 8 IoCs

Processes:

28RZ320aOn5CpAw.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\GoSave\kF66QAcRmRHa5l.dll	28RZ320aOn5CpAw.exe
File created	C:\Program Files (x86)\GoSave\kF66QAcRmRHa5l.tlb	28RZ320aOn5CpAw.exe
File opened for modification	C:\Program Files (x86)\GoSave\kF66QAcRmRHa5l.tlb	28RZ320aOn5CpAw.exe
File created	C:\Program Files (x86)\GoSave\kF66QAcRmRHa5l.dat	28RZ320aOn5CpAw.exe
File opened for modification	C:\Program Files (x86)\GoSave\kF66QAcRmRHa5l.dat	28RZ320aOn5CpAw.exe
File created	C:\Program Files (x86)\GoSave\kF66QAcRmRHa5l.x64.dll	28RZ320aOn5CpAw.exe
File opened for modification	C:\Program Files (x86)\GoSave\kF66QAcRmRHa5l.x64.dll	28RZ320aOn5CpAw.exe
File created	C:\Program Files (x86)\GoSave\kF66QAcRmRHa5l.dll	28RZ320aOn5CpAw.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

28RZ320aOn5CpAw.exe

pid process

1136 28RZ320aOn5CpAw.exe
1136 28RZ320aOn5CpAw.exe

pid	process
1136	28RZ320aOn5CpAw.exe
1136	28RZ320aOn5CpAw.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

cf0b69e92e81598cd18324826bac7c81e3e0d4628dadd3b4a319bf3684684df9.exe28RZ320aOn5CpAw.exeregsvr32.exe

description	pid	process	target process
PID 1112 wrote to memory of 1136	1112	cf0b69e92e81598cd18324826bac7c81e3e0d4628dadd3b4a319bf3684684df9.exe	28RZ320aOn5CpAw.exe
PID 1112 wrote to memory of 1136	1112	cf0b69e92e81598cd18324826bac7c81e3e0d4628dadd3b4a319bf3684684df9.exe	28RZ320aOn5CpAw.exe
PID 1112 wrote to memory of 1136	1112	cf0b69e92e81598cd18324826bac7c81e3e0d4628dadd3b4a319bf3684684df9.exe	28RZ320aOn5CpAw.exe
PID 1136 wrote to memory of 4928	1136	28RZ320aOn5CpAw.exe	regsvr32.exe
PID 1136 wrote to memory of 4928	1136	28RZ320aOn5CpAw.exe	regsvr32.exe
PID 1136 wrote to memory of 4928	1136	28RZ320aOn5CpAw.exe	regsvr32.exe
PID 4928 wrote to memory of 4864	4928	regsvr32.exe	regsvr32.exe
PID 4928 wrote to memory of 4864	4928	regsvr32.exe	regsvr32.exe

C:\Users\Admin\AppData\Local\Temp\cf0b69e92e81598cd18324826bac7c81e3e0d4628dadd3b4a319bf3684684df9.exe
"C:\Users\Admin\AppData\Local\Temp\cf0b69e92e81598cd18324826bac7c81e3e0d4628dadd3b4a319bf3684684df9.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1112

C:\Users\Admin\AppData\Local\Temp\7zS2635.tmp\28RZ320aOn5CpAw.exe
.\28RZ320aOn5CpAw.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:1136

C:\Windows\SysWOW64\regsvr32.exe
regsvr32.exe /s "C:\Program Files (x86)\GoSave\kF66QAcRmRHa5l.x64.dll"
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4928

C:\Windows\system32\regsvr32.exe
/s "C:\Program Files (x86)\GoSave\kF66QAcRmRHa5l.x64.dll"
4⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
PID:4864

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\kF66QAcRmRHa5l.dat
Filesize
6KB

MD5
400bf2d063efe57bcdc82c035524f308

SHA1
c60894a481424db0b71fb034554d4835bcb24299

SHA256
e3521dee798e0a2d3a53f42ce63a5789a87c1beb04419b258576b38de212dd2c

SHA512
4861962f59cf4666142bf0942b6a80853bb388b12a457d332b868012a13bcf6a3d7cfadf709f2e4374659edc89e7e7fb8af229b97582424bc049782fd3e2ea83

Download Submit
C:\Program Files (x86)\GoSave\kF66QAcRmRHa5l.dll
Filesize
745KB

MD5
ce27e078a917088b7459c44570637b9d

SHA1
4d9e95fc9b97a1f21221f96ea8fbee55132e82b7

SHA256
8804ae047c9ba998964a359f278f54fa1d671ed245b7dfe117625f1ce0d5e84f

SHA512
492fdacef00a45dfe6d9db9c80b908bd0d9ebb4bf75c1f4053a8e281cfad5279646754a711484709de6f571487276ec19f71552522dc218fba8331bf6358f9ce

Download Submit
C:\Program Files (x86)\GoSave\kF66QAcRmRHa5l.x64.dll
Filesize
886KB

MD5
1433d7e71196529644716ffc72c261b2

SHA1
f35147e7dc56f4e92856061b48c9f7a872e10385

SHA256
2ae79c724f8c2a134c125315fc6ee929b7ce09260e80b61c9a9e915571103e3f

SHA512
c363a35bd82214350439dcf6aaf9048b29f10aaeb3b1c3a69222792a94fab1009a5f6b6528df102ae082c129cce50ae7d646abc1dbd8ff9e788a9d05828c272c

Download Submit
C:\Program Files (x86)\GoSave\kF66QAcRmRHa5l.x64.dll
Filesize
886KB

MD5
1433d7e71196529644716ffc72c261b2

SHA1
f35147e7dc56f4e92856061b48c9f7a872e10385

SHA256
2ae79c724f8c2a134c125315fc6ee929b7ce09260e80b61c9a9e915571103e3f

SHA512
c363a35bd82214350439dcf6aaf9048b29f10aaeb3b1c3a69222792a94fab1009a5f6b6528df102ae082c129cce50ae7d646abc1dbd8ff9e788a9d05828c272c

Download Submit
C:\Program Files (x86)\GoSave\kF66QAcRmRHa5l.x64.dll
Filesize
886KB

MD5
1433d7e71196529644716ffc72c261b2

SHA1
f35147e7dc56f4e92856061b48c9f7a872e10385

SHA256
2ae79c724f8c2a134c125315fc6ee929b7ce09260e80b61c9a9e915571103e3f

SHA512
c363a35bd82214350439dcf6aaf9048b29f10aaeb3b1c3a69222792a94fab1009a5f6b6528df102ae082c129cce50ae7d646abc1dbd8ff9e788a9d05828c272c

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS2635.tmp\28RZ320aOn5CpAw.dat
Filesize
6KB

MD5
400bf2d063efe57bcdc82c035524f308

SHA1
c60894a481424db0b71fb034554d4835bcb24299

SHA256
e3521dee798e0a2d3a53f42ce63a5789a87c1beb04419b258576b38de212dd2c

SHA512
4861962f59cf4666142bf0942b6a80853bb388b12a457d332b868012a13bcf6a3d7cfadf709f2e4374659edc89e7e7fb8af229b97582424bc049782fd3e2ea83

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS2635.tmp\28RZ320aOn5CpAw.exe
Filesize
770KB

MD5
b4c30381dd37fea1c1c69bcb3ad48b32

SHA1
869eca61396754586f7e85ebf65a334e01856740

SHA256
66481ba6d9cbf3c7662fc7cfd867739077256f60f4165f76dfdcd9461500ae50

SHA512
1e7bbdd7a75b748ff9a5f70b46766b0108effc84e0cc7c5d8a1f32e56136181060a4363ed2cbd6ed14d195a2379cf8148680380256f31b809bb77d1fe0bf064f

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS2635.tmp\28RZ320aOn5CpAw.exe
Filesize
770KB

MD5
b4c30381dd37fea1c1c69bcb3ad48b32

SHA1
869eca61396754586f7e85ebf65a334e01856740

SHA256
66481ba6d9cbf3c7662fc7cfd867739077256f60f4165f76dfdcd9461500ae50

SHA512
1e7bbdd7a75b748ff9a5f70b46766b0108effc84e0cc7c5d8a1f32e56136181060a4363ed2cbd6ed14d195a2379cf8148680380256f31b809bb77d1fe0bf064f

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS2635.tmp\O2@m.net\bootstrap.js
Filesize
2KB

MD5
df13f711e20e9c80171846d4f2f7ae06

SHA1
56d29cda58427efe0e21d3880d39eb1b0ef60bee

SHA256
6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

SHA512
6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS2635.tmp\O2@m.net\chrome.manifest
Filesize
35B

MD5
37c5726c9c97bb2ef1dfd2a732eaabd3

SHA1
7708c1d2a2a456d83f48d1e6de51b6fc1089b8a6

SHA256
6ea0533403ff8714da7f2f290dc8fadc182fbb002559a08682656573c0d59736

SHA512
d0717935cd131bd842549c0c26748a42d09d4828e1748011cab4fac162abe998064bf5dc469bafe91a80a53ed3e71e645f99251089f0fb9b38f10e93285471bf

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS2635.tmp\O2@m.net\content\bg.js
Filesize
7KB

MD5
b3cdccd6fcdfc20d6a228c84f805732d

SHA1
edf542fd748df47269eb5794399ffcf0c424b972

SHA256
3d101e1f362c49faa1d02b6b5aa454f1d3bce9aa36f8df9e5bfccebf5cffce27

SHA512
15e13f65f847e7ce113dfbb69fe5738e2fd7410bcb67feb9c6f58179ab1f488195c6057f066484ad87209abb0a33753b01664e1de02905cc8c7bff5ba6d31ba3

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS2635.tmp\O2@m.net\install.rdf
Filesize
590B

MD5
c87446f8320d17addaf249e877ae2e6d

SHA1
c61dd85250ed3e961da4c5d419a50f786df001c6

SHA256
e458d31d93e37b9d5979898bd08d8059d141dd9c9417db4485f17557b9067db7

SHA512
1fe65b4131763d6876fa583bdf47b7d78ac6b61aac0e6bcb8588cd5a62fa187e95430ce2fd7edb3a0b33c4f4a1b9ebac8e4f644679e2b953748cb63d5f3fe9fc

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS2635.tmp\kF66QAcRmRHa5l.dll
Filesize
745KB

MD5
ce27e078a917088b7459c44570637b9d

SHA1
4d9e95fc9b97a1f21221f96ea8fbee55132e82b7

SHA256
8804ae047c9ba998964a359f278f54fa1d671ed245b7dfe117625f1ce0d5e84f

SHA512
492fdacef00a45dfe6d9db9c80b908bd0d9ebb4bf75c1f4053a8e281cfad5279646754a711484709de6f571487276ec19f71552522dc218fba8331bf6358f9ce

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS2635.tmp\kF66QAcRmRHa5l.tlb
Filesize
3KB

MD5
f636475c74627ddf7b3b6b6dfaa8d491

SHA1
fb3a63977f8b0e07f18d313ace3e1f1223dc423b

SHA256
e6e330d72d59551c9ba78464c4081280510901a82f66d94c84cc94ca4594e4b2

SHA512
ba788afd76700c60fa8d899ea6ebc1c69594b09d9099c7cb4d408e290575c9ed89b0288df1a1ca9f1562564eb65f51f8add17f4c57eea7fe890b38592560fb96

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS2635.tmp\kF66QAcRmRHa5l.x64.dll
Filesize
886KB

MD5
1433d7e71196529644716ffc72c261b2

SHA1
f35147e7dc56f4e92856061b48c9f7a872e10385

SHA256
2ae79c724f8c2a134c125315fc6ee929b7ce09260e80b61c9a9e915571103e3f

SHA512
c363a35bd82214350439dcf6aaf9048b29f10aaeb3b1c3a69222792a94fab1009a5f6b6528df102ae082c129cce50ae7d646abc1dbd8ff9e788a9d05828c272c

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS2635.tmp\lljlanobcfihpgocmapdpbhiabdnkdee\background.html
Filesize
139B

MD5
01598e90d332e608e1a8a12baadf296d

SHA1
8ece46ea4416236d31989fbb7ce9c318ed89a29f

SHA256
208099c79a4b8187eebc9e77f8068e7d938467cd9c1dc4173ae393d6f28b671b

SHA512
d6a59e52b3f9f2cc69501440d4a0a63a6839122c1698e864e16eb765d2ca3b3c590ce618e3026a59e055db0162ced028f62a7248795664883c9c8b3b57aeab71

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS2635.tmp\lljlanobcfihpgocmapdpbhiabdnkdee\content.js
Filesize
144B

MD5
fca19198fd8af21016a8b1dec7980002

SHA1
fd01a47d14004e17a625efe66cc46a06c786cf40

SHA256
332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

SHA512
60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS2635.tmp\lljlanobcfihpgocmapdpbhiabdnkdee\hL.js
Filesize
5KB

MD5
2a9929170667e9d847ccc98c42d61093

SHA1
73a9a8f381e2693ab509f5b91c746538525c3fca

SHA256
de1cc22a4485db020d9d4e2908c555036251b883aef327667f6de9dd280d52c0

SHA512
ac565dbabe77b6c2e50ed28ab153fd9323c3115b47fdd2a38d9a390e2cdb9cf1548469b57101be9bc996fc2b3b97f074848aa440d054c6a230a994a04279a94a

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS2635.tmp\lljlanobcfihpgocmapdpbhiabdnkdee\lsdb.js
Filesize
531B

MD5
36d98318ab2b3b2585a30984db328afb

SHA1
f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

SHA256
ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

SHA512
6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS2635.tmp\lljlanobcfihpgocmapdpbhiabdnkdee\manifest.json
Filesize
498B

MD5
640199ea4621e34510de919f6a54436f

SHA1
dc65dbfad02bd2688030bd56ca1cab85917a9937

SHA256
e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

SHA512
d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

Download Submit
memory/1136-132-0x0000000000000000-mapping.dmp

Download
memory/4864-152-0x0000000000000000-mapping.dmp

Download
memory/4928-149-0x0000000000000000-mapping.dmp

Download