c8f83ac331e182d1fd2836cf6e2e01a1fcd3b60b6b50a4d2b95fb90c73dc3a5b

General

Target

c8f83ac331e182d1fd2836cf6e2e01a1fcd3b60b6b50a4d2b95fb90c73dc3a5b.exe
Size

3.1MB
MD5

1e573dc68aa904f919dee7883695db3a
SHA1

3b099b7edfc134ec63a3afe6242a0f9698b7cd68
SHA256

c8f83ac331e182d1fd2836cf6e2e01a1fcd3b60b6b50a4d2b95fb90c73dc3a5b
SHA512

4731b2a51311eac697e02b3dbb992f8c219b9b971d9b66e3430a16b739dedd3071027252ad23374466879b12300b135a07c9ca406afc9b233a5d3b1ae6f4c83c
SSDEEP

49152:aVAbw8VyRPkVwSdyKE6a8anqApzEVZnk8m0Uf89+zvi1QXsy4TpM+DWUl+n1aso:uA7VyRPS7MLq4ykF09+riyXWz6Ha

Score

8^/10

discovery spyware stealer

Malware Config

Signatures

Downloads MZ/PE file

Executes dropped EXE 6 IoCs

pid	Process
3504	setup.exe
3828	setup.exe
112	setup.exe
3720	Opera_GX_assistant_73.0.3856.382_Setup.exe_sfx.exe
1252	assistant_installer.exe
2104	assistant_installer.exe

Loads dropped DLL 3 IoCs

pid	Process
3504	setup.exe
3828	setup.exe
112	setup.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
T1552.001

Enumerates connected drives 3 TTPs 2 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\D:	setup.exe
File opened (read-only)	\??\F:	setup.exe

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	setup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	setup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Opera_GX_assistant_73.0.3856.382_Setup.exe_sfx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	assistant_installer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	assistant_installer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c8f83ac331e182d1fd2836cf6e2e01a1fcd3b60b6b50a4d2b95fb90c73dc3a5b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	setup.exe

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25	setup.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	setup.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	setup.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3504	setup.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 888 wrote to memory of 3504	888	c8f83ac331e182d1fd2836cf6e2e01a1fcd3b60b6b50a4d2b95fb90c73dc3a5b.exe	86
PID 888 wrote to memory of 3504	888	c8f83ac331e182d1fd2836cf6e2e01a1fcd3b60b6b50a4d2b95fb90c73dc3a5b.exe	86
PID 888 wrote to memory of 3504	888	c8f83ac331e182d1fd2836cf6e2e01a1fcd3b60b6b50a4d2b95fb90c73dc3a5b.exe	86
PID 3504 wrote to memory of 3828	3504	setup.exe	88
PID 3504 wrote to memory of 3828	3504	setup.exe	88
PID 3504 wrote to memory of 3828	3504	setup.exe	88
PID 3504 wrote to memory of 112	3504	setup.exe	89
PID 3504 wrote to memory of 112	3504	setup.exe	89
PID 3504 wrote to memory of 112	3504	setup.exe	89
PID 3504 wrote to memory of 3720	3504	setup.exe	99
PID 3504 wrote to memory of 3720	3504	setup.exe	99
PID 3504 wrote to memory of 3720	3504	setup.exe	99
PID 3504 wrote to memory of 1252	3504	setup.exe	101
PID 3504 wrote to memory of 1252	3504	setup.exe	101
PID 3504 wrote to memory of 1252	3504	setup.exe	101
PID 1252 wrote to memory of 2104	1252	assistant_installer.exe	102
PID 1252 wrote to memory of 2104	1252	assistant_installer.exe	102
PID 1252 wrote to memory of 2104	1252	assistant_installer.exe	102

C:\Users\Admin\AppData\Local\Temp\c8f83ac331e182d1fd2836cf6e2e01a1fcd3b60b6b50a4d2b95fb90c73dc3a5b.exe
"C:\Users\Admin\AppData\Local\Temp\c8f83ac331e182d1fd2836cf6e2e01a1fcd3b60b6b50a4d2b95fb90c73dc3a5b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:888
- C:\Users\Admin\AppData\Local\Temp\7zS873C3187\setup.exe
  C:\Users\Admin\AppData\Local\Temp\7zS873C3187\setup.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Enumerates connected drives
  - System Location Discovery: System Language Discovery
  - Modifies system certificate store
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3504
- - C:\Users\Admin\AppData\Local\Temp\7zS873C3187\setup.exe
    C:\Users\Admin\AppData\Local\Temp\7zS873C3187\setup.exe --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktopGX --annotation=ver=112.0.5197.60 --initial-client-data=0x32c,0x330,0x334,0x300,0x338,0x741d1b54,0x741d1b60,0x741d1b6c
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:3828
- - C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\setup.exe
    "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\setup.exe" --version
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:112
- - C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408172310421\assistant\Opera_GX_assistant_73.0.3856.382_Setup.exe_sfx.exe
    "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408172310421\assistant\Opera_GX_assistant_73.0.3856.382_Setup.exe_sfx.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3720
- - C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408172310421\assistant\assistant_installer.exe
    "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408172310421\assistant\assistant_installer.exe" --version
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1252
  - - C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408172310421\assistant\assistant_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408172310421\assistant\assistant_installer.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktopGX --annotation=ver=73.0.3856.382 --initial-client-data=0x26c,0x270,0x274,0x248,0x278,0xbb4f48,0xbb4f58,0xbb4f64
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:2104

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408172310421\additional_file0.tmp

Filesize
1.4MB

MD5
e9a2209b61f4be34f25069a6e54affea

SHA1
6368b0a81608c701b06b97aeff194ce88fd0e3c0

SHA256
e950f17f4181009eeafa9f5306e8a9dfd26d88ca63b1838f44ff0efc738e7d1f

SHA512
59e46277ca79a43ed8b0a25b24eff013e251a75f90587e013b9c12851e5dd7283b6172f7d48583982f6a32069457778ee440025c1c754bf7bb6ce8ae1d2c3fc5

Download Submit
C:\Users\Admin\AppData\Local\Temp\.opera\Opera GX Installer Temp\opera_package_202408172310421\assistant\assistant_installer.exe

Filesize
1.8MB

MD5
4c8fbed0044da34ad25f781c3d117a66

SHA1
8dd93340e3d09de993c3bc12db82680a8e69d653

SHA256
afe569ce9e4f71c23ba5f6e8fd32be62ac9538e397cde8f2ecbe46faa721242a

SHA512
a04e6fd052d2d63a0737c83702c66a9af834f9df8423666508c42b3e1d8384300239c9ddacdc31c1e85140eb1193bcfac209f218750b40342492ffce6e9da481

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS873C3187\setup.exe

Filesize
6.4MB

MD5
607fb47ad9d20bb16f90e4a38c93bbfe

SHA1
578ea8b4bd0bbd32114bfd61910118c3d9cfc355

SHA256
8a82ae5c857123cc6972b93828f3a6202c0db4d325ea6d5b1e36dcfb290c1e09

SHA512
23470d0aa5989132efa1fcd4b1d183374384e3b75249910c08e22d2fedf315f084028b7299d6f6c0a5230b2ec78179485d0f187d0a87f710d25f1eac81939e47

Download Submit
C:\Users\Admin\AppData\Local\Temp\Opera_installer_2408172310419923504.dll

Filesize
5.9MB

MD5
1e6485e90130bb0cffd2ae2ca7fef2a2

SHA1
b9c01fddb3921b6f56d8d774eb0364f7024428e8

SHA256
907cb59383443ce62fdcd2eb90e4bf32cf3a0de6078e708f694dfc7bd7166b5b

SHA512
e28ec73e1465591827f092b71ab740a8de0b7ffcf5af0b3e4c1c8be37f16f1a87ae4fdfe23c25a305741a5aaf30fd2aab77f55061eb729f0dc5e64aef3dd6527

Download Submit
C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports\settings.dat

Filesize
40B

MD5
9aa910fda6318ea53b732f21c6175035

SHA1
ec31d2bb78be7e6b91ca8384491e8bdf6b8fcd43

SHA256
58900993f3cd92ebb38a4db882dab78e5b178b5e2f6830a2476174ee0e01ca16

SHA512
7ae84d7322ecd7c4a75a4ffd84d06e12249b4b43e91af69b260d40bab01be5506866aa33694fcd228ecb369b97889512230598e6bc6ad6396375fdf3f9b44ebd

Download Submit

Analysis

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