d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c

Analysis

max time kernel
145s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03/12/2022, 12:26

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General

Target

d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe
Size

220KB
MD5

901a8d336b88c0917c995b07ce1c433d
SHA1

99aab204407cd7f515df8f961a7268cff74cd5f6
SHA256

d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c
SHA512

3d4c8457cda746eabdb0910713119aa50ea47a98c18591e9bc3d38972ae6f8af3a9df84d15fdce52e35e0a766f19b168eeab473b86eefaeb701dc3a21263c69d
SSDEEP

3072:WZ9D0m1KKwITtrgQ5F05+N1WuZeCnfD1IMOLUTEEQDMRLp39/BiVeJio9S:WZJMRQPYa1WyeSfa1kfQCpt/4VeT

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1044	Gybdbj.exe
4408	Gybdbj.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Gybdbj = "C:\\Users\\Admin\\AppData\\Roaming\\Gybdbj.exe"	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1088 set thread context of 4884	1088	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	80
PID 1044 set thread context of 4408	1044	Gybdbj.exe	82

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31000955"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4035469342"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "377100530"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3982812876"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3982812876"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31000955"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "4035469342"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{0EC649A0-756F-11ED-B696-E64E24383C5C} = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31000955"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31000955"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4884	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe
4884	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4408	Gybdbj.exe
Token: SeDebugPrivilege	2256	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2008	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2008	IEXPLORE.EXE
2008	IEXPLORE.EXE
2620	IEXPLORE.EXE
2620	IEXPLORE.EXE
2620	IEXPLORE.EXE
2620	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1088 wrote to memory of 4884	1088	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	80
PID 1088 wrote to memory of 4884	1088	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	80
PID 1088 wrote to memory of 4884	1088	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	80
PID 1088 wrote to memory of 4884	1088	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	80
PID 1088 wrote to memory of 4884	1088	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	80
PID 1088 wrote to memory of 4884	1088	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	80
PID 1088 wrote to memory of 4884	1088	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	80
PID 1088 wrote to memory of 4884	1088	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	80
PID 1088 wrote to memory of 4884	1088	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	80
PID 4884 wrote to memory of 1044	4884	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	81
PID 4884 wrote to memory of 1044	4884	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	81
PID 4884 wrote to memory of 1044	4884	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	81
PID 1044 wrote to memory of 4408	1044	Gybdbj.exe	82
PID 1044 wrote to memory of 4408	1044	Gybdbj.exe	82
PID 1044 wrote to memory of 4408	1044	Gybdbj.exe	82
PID 1044 wrote to memory of 4408	1044	Gybdbj.exe	82
PID 1044 wrote to memory of 4408	1044	Gybdbj.exe	82
PID 1044 wrote to memory of 4408	1044	Gybdbj.exe	82
PID 1044 wrote to memory of 4408	1044	Gybdbj.exe	82
PID 1044 wrote to memory of 4408	1044	Gybdbj.exe	82
PID 1044 wrote to memory of 4408	1044	Gybdbj.exe	82
PID 4408 wrote to memory of 2256	4408	Gybdbj.exe	83
PID 4408 wrote to memory of 2256	4408	Gybdbj.exe	83
PID 4408 wrote to memory of 2256	4408	Gybdbj.exe	83
PID 4408 wrote to memory of 2256	4408	Gybdbj.exe	83
PID 4408 wrote to memory of 2256	4408	Gybdbj.exe	83
PID 2256 wrote to memory of 2008	2256	iexplore.exe	84
PID 2256 wrote to memory of 2008	2256	iexplore.exe	84
PID 2256 wrote to memory of 2008	2256	iexplore.exe	84
PID 2008 wrote to memory of 2620	2008	IEXPLORE.EXE	86
PID 2008 wrote to memory of 2620	2008	IEXPLORE.EXE	86
PID 2008 wrote to memory of 2620	2008	IEXPLORE.EXE	86

C:\Users\Admin\AppData\Local\Temp\d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe
"C:\Users\Admin\AppData\Local\Temp\d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1088
- C:\Users\Admin\AppData\Local\Temp\d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe
  "C:\Users\Admin\AppData\Local\Temp\d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4884
- - C:\Users\Admin\AppData\Roaming\Gybdbj.exe
    "C:\Users\Admin\AppData\Roaming\Gybdbj.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1044
  - - C:\Users\Admin\AppData\Roaming\Gybdbj.exe
      "C:\Users\Admin\AppData\Roaming\Gybdbj.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:4408
    - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
        
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        5⤵
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:2256
      - 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:2008
        
        C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2008 CREDAT:17410 /prefetch:2
        7⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2620

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\Gybdbj.exe

Filesize
220KB

MD5
901a8d336b88c0917c995b07ce1c433d

SHA1
99aab204407cd7f515df8f961a7268cff74cd5f6

SHA256
d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c

SHA512
3d4c8457cda746eabdb0910713119aa50ea47a98c18591e9bc3d38972ae6f8af3a9df84d15fdce52e35e0a766f19b168eeab473b86eefaeb701dc3a21263c69d

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

Filesize
220KB

MD5
901a8d336b88c0917c995b07ce1c433d

SHA1
99aab204407cd7f515df8f961a7268cff74cd5f6

SHA256
d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c

SHA512
3d4c8457cda746eabdb0910713119aa50ea47a98c18591e9bc3d38972ae6f8af3a9df84d15fdce52e35e0a766f19b168eeab473b86eefaeb701dc3a21263c69d

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

Filesize
220KB

MD5
901a8d336b88c0917c995b07ce1c433d

SHA1
99aab204407cd7f515df8f961a7268cff74cd5f6

SHA256
d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c

SHA512
3d4c8457cda746eabdb0910713119aa50ea47a98c18591e9bc3d38972ae6f8af3a9df84d15fdce52e35e0a766f19b168eeab473b86eefaeb701dc3a21263c69d

Download Submit
memory/1044-147-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1044-143-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1088-136-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1088-132-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/4408-150-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4408-151-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4884-137-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4884-138-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4884-134-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4884-142-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download