235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df

Analysis

max time kernel
135s
max time network
146s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
21-11-2022 12:51

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General

Target

235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe
Size

171KB
MD5

230965f195f0df7df0022b6060c873e0
SHA1

05c9f75559ab4c856a8a9f36ce9ab7989c304297
SHA256

235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df
SHA512

b71fbb4b779cf64d9ebdab85e1aef17060cb0c91e781e13eca269231ca14277c8b8f4cb5b6c69b35973c08cb891064071536f4734577cf7033b32f8637bc22fb
SSDEEP

3072:7sI+CkiTP3YdoOUgVI5pzPEm15hKJlgpJsyIBGmYYyEl:0CkiTP3dOUgVezPlThbMNEEl

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1868	Bhyuyv.exe
904	Bhyuyv.exe

Loads dropped DLL 2 IoCs

pid	Process
964	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe
964	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\Bhyuyv = "C:\\Users\\Admin\\AppData\\Roaming\\Bhyuyv.exe"	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1184 set thread context of 964	1184	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe	26
PID 1868 set thread context of 904	1868	Bhyuyv.exe	28

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PageSetup	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Zoom	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{B1932E41-69A3-11ED-8C11-42FEA5F7B9B2} = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375803718"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IntelliForms	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\InternetRegistry	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
964	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	904	Bhyuyv.exe
Token: SeDebugPrivilege	1680	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
844	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
844	IEXPLORE.EXE
844	IEXPLORE.EXE
1680	IEXPLORE.EXE
1680	IEXPLORE.EXE
1680	IEXPLORE.EXE
1680	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1184 wrote to memory of 964	1184	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe	26
PID 1184 wrote to memory of 964	1184	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe	26
PID 1184 wrote to memory of 964	1184	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe	26
PID 1184 wrote to memory of 964	1184	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe	26
PID 1184 wrote to memory of 964	1184	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe	26
PID 1184 wrote to memory of 964	1184	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe	26
PID 1184 wrote to memory of 964	1184	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe	26
PID 1184 wrote to memory of 964	1184	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe	26
PID 1184 wrote to memory of 964	1184	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe	26
PID 964 wrote to memory of 1868	964	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe	27
PID 964 wrote to memory of 1868	964	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe	27
PID 964 wrote to memory of 1868	964	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe	27
PID 964 wrote to memory of 1868	964	235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe	27
PID 1868 wrote to memory of 904	1868	Bhyuyv.exe	28
PID 1868 wrote to memory of 904	1868	Bhyuyv.exe	28
PID 1868 wrote to memory of 904	1868	Bhyuyv.exe	28
PID 1868 wrote to memory of 904	1868	Bhyuyv.exe	28
PID 1868 wrote to memory of 904	1868	Bhyuyv.exe	28
PID 1868 wrote to memory of 904	1868	Bhyuyv.exe	28
PID 1868 wrote to memory of 904	1868	Bhyuyv.exe	28
PID 1868 wrote to memory of 904	1868	Bhyuyv.exe	28
PID 1868 wrote to memory of 904	1868	Bhyuyv.exe	28
PID 904 wrote to memory of 1088	904	Bhyuyv.exe	29
PID 904 wrote to memory of 1088	904	Bhyuyv.exe	29
PID 904 wrote to memory of 1088	904	Bhyuyv.exe	29
PID 904 wrote to memory of 1088	904	Bhyuyv.exe	29
PID 1088 wrote to memory of 844	1088	iexplore.exe	30
PID 1088 wrote to memory of 844	1088	iexplore.exe	30
PID 1088 wrote to memory of 844	1088	iexplore.exe	30
PID 1088 wrote to memory of 844	1088	iexplore.exe	30
PID 844 wrote to memory of 1680	844	IEXPLORE.EXE	32
PID 844 wrote to memory of 1680	844	IEXPLORE.EXE	32
PID 844 wrote to memory of 1680	844	IEXPLORE.EXE	32
PID 844 wrote to memory of 1680	844	IEXPLORE.EXE	32
PID 904 wrote to memory of 1680	904	Bhyuyv.exe	32
PID 904 wrote to memory of 1680	904	Bhyuyv.exe	32

C:\Users\Admin\AppData\Local\Temp\235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe
"C:\Users\Admin\AppData\Local\Temp\235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Users\Admin\AppData\Local\Temp\235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe
  C:\Users\Admin\AppData\Local\Temp\235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df.exe
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:964
- - C:\Users\Admin\AppData\Roaming\Bhyuyv.exe
    "C:\Users\Admin\AppData\Roaming\Bhyuyv.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1868
  - - C:\Users\Admin\AppData\Roaming\Bhyuyv.exe
      C:\Users\Admin\AppData\Roaming\Bhyuyv.exe
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:904
    - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
        
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1088
      - C:\Program Files\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:844
        
        C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:844 CREDAT:275457 /prefetch:2
        7⤵
        Modifies Internet Explorer settings
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:1680

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Bhyuyv.exe

Filesize
171KB

MD5
230965f195f0df7df0022b6060c873e0

SHA1
05c9f75559ab4c856a8a9f36ce9ab7989c304297

SHA256
235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df

SHA512
b71fbb4b779cf64d9ebdab85e1aef17060cb0c91e781e13eca269231ca14277c8b8f4cb5b6c69b35973c08cb891064071536f4734577cf7033b32f8637bc22fb

Download Submit
C:\Users\Admin\AppData\Roaming\Bhyuyv.exe

Filesize
171KB

MD5
230965f195f0df7df0022b6060c873e0

SHA1
05c9f75559ab4c856a8a9f36ce9ab7989c304297

SHA256
235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df

SHA512
b71fbb4b779cf64d9ebdab85e1aef17060cb0c91e781e13eca269231ca14277c8b8f4cb5b6c69b35973c08cb891064071536f4734577cf7033b32f8637bc22fb

Download Submit
C:\Users\Admin\AppData\Roaming\Bhyuyv.exe

Filesize
171KB

MD5
230965f195f0df7df0022b6060c873e0

SHA1
05c9f75559ab4c856a8a9f36ce9ab7989c304297

SHA256
235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df

SHA512
b71fbb4b779cf64d9ebdab85e1aef17060cb0c91e781e13eca269231ca14277c8b8f4cb5b6c69b35973c08cb891064071536f4734577cf7033b32f8637bc22fb

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\YPMMY48D.txt

Filesize
606B

MD5
cf78740f85bd9f83c3d04e0bdb1f16f6

SHA1
b8c66bc56a8aace326f045f5b6e4b7d4a5941ed5

SHA256
dfd76422b0b0bad98c7f9a129b098603c093b0b6fc8d917ace2766fa75547bd0

SHA512
b58ad6e4f7be0ebb7da90e5c63653c329e2319b3625a274fa1c5a497eb6a5ec666abc893f183bdb80bc4d5a96a5f704cab046d0be89c323b93d7ed051971ef2d

Download Submit
\Users\Admin\AppData\Roaming\Bhyuyv.exe

Filesize
171KB

MD5
230965f195f0df7df0022b6060c873e0

SHA1
05c9f75559ab4c856a8a9f36ce9ab7989c304297

SHA256
235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df

SHA512
b71fbb4b779cf64d9ebdab85e1aef17060cb0c91e781e13eca269231ca14277c8b8f4cb5b6c69b35973c08cb891064071536f4734577cf7033b32f8637bc22fb

Download Submit
\Users\Admin\AppData\Roaming\Bhyuyv.exe

Filesize
171KB

MD5
230965f195f0df7df0022b6060c873e0

SHA1
05c9f75559ab4c856a8a9f36ce9ab7989c304297

SHA256
235f6a7c6fa4211a8e5be84a6527d6bbdd7ef383ac5fdde0865c81212735c7df

SHA512
b71fbb4b779cf64d9ebdab85e1aef17060cb0c91e781e13eca269231ca14277c8b8f4cb5b6c69b35973c08cb891064071536f4734577cf7033b32f8637bc22fb

Download Submit
memory/904-74-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/904-75-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/964-60-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/964-59-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/964-65-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/964-58-0x0000000074BB1000-0x0000000074BB3000-memory.dmp

Filesize
8KB

Download
memory/964-54-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1184-57-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/1868-70-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download