91a66ae725e5cd1fb89de8caef3616c75671a24acb4a3f366e918f2dd5e0f095

Analysis

max time kernel
138s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26-01-2024 02:47

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General

Target

762ebe97300798ef2b635c59557ca69a.exe
Size

196KB
MD5

762ebe97300798ef2b635c59557ca69a
SHA1

3e26a66c9669f2608c8971796514af84608e5147
SHA256

91a66ae725e5cd1fb89de8caef3616c75671a24acb4a3f366e918f2dd5e0f095
SHA512

2621eaeed19e1a39c76a87c3371d8f2d27feef17220ffc7b6bf01209ac04a5e9525103c63018f8b119e4258236b196743bd5efa72a688186b12394fab7ba54ed
SSDEEP

3072:bjDbDQUkwtCfG391r9AeC1J0tTHzNvkkcMJD7jBO8Y8IUZ:fDQUI4Jq1J4rh8MhUm

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4120	Bpvzva.exe
4832	Bpvzva.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bpvzva = "C:\\Users\\Admin\\AppData\\Roaming\\Bpvzva.exe"	762ebe97300798ef2b635c59557ca69a.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3488 set thread context of 1816	3488	762ebe97300798ef2b635c59557ca69a.exe	87
PID 4120 set thread context of 4832	4120	Bpvzva.exe	96

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "482170554"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{45E0BD4A-BBF5-11EE-B6AD-C6E29C351F1E} = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31084546"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "413002240"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "444828726"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31084546"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "444828726"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31084546"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1816	762ebe97300798ef2b635c59557ca69a.exe
1816	762ebe97300798ef2b635c59557ca69a.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4832	Bpvzva.exe
Token: SeDebugPrivilege	1768	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2656	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2656	IEXPLORE.EXE
2656	IEXPLORE.EXE
1768	IEXPLORE.EXE
1768	IEXPLORE.EXE
1768	IEXPLORE.EXE
1768	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 3488 wrote to memory of 1816	3488	762ebe97300798ef2b635c59557ca69a.exe	87
PID 3488 wrote to memory of 1816	3488	762ebe97300798ef2b635c59557ca69a.exe	87
PID 3488 wrote to memory of 1816	3488	762ebe97300798ef2b635c59557ca69a.exe	87
PID 3488 wrote to memory of 1816	3488	762ebe97300798ef2b635c59557ca69a.exe	87
PID 3488 wrote to memory of 1816	3488	762ebe97300798ef2b635c59557ca69a.exe	87
PID 3488 wrote to memory of 1816	3488	762ebe97300798ef2b635c59557ca69a.exe	87
PID 3488 wrote to memory of 1816	3488	762ebe97300798ef2b635c59557ca69a.exe	87
PID 3488 wrote to memory of 1816	3488	762ebe97300798ef2b635c59557ca69a.exe	87
PID 3488 wrote to memory of 1816	3488	762ebe97300798ef2b635c59557ca69a.exe	87
PID 1816 wrote to memory of 4120	1816	762ebe97300798ef2b635c59557ca69a.exe	92
PID 1816 wrote to memory of 4120	1816	762ebe97300798ef2b635c59557ca69a.exe	92
PID 1816 wrote to memory of 4120	1816	762ebe97300798ef2b635c59557ca69a.exe	92
PID 4120 wrote to memory of 4832	4120	Bpvzva.exe	96
PID 4120 wrote to memory of 4832	4120	Bpvzva.exe	96
PID 4120 wrote to memory of 4832	4120	Bpvzva.exe	96
PID 4120 wrote to memory of 4832	4120	Bpvzva.exe	96
PID 4120 wrote to memory of 4832	4120	Bpvzva.exe	96
PID 4120 wrote to memory of 4832	4120	Bpvzva.exe	96
PID 4120 wrote to memory of 4832	4120	Bpvzva.exe	96
PID 4120 wrote to memory of 4832	4120	Bpvzva.exe	96
PID 4120 wrote to memory of 4832	4120	Bpvzva.exe	96
PID 4832 wrote to memory of 3556	4832	Bpvzva.exe	97
PID 4832 wrote to memory of 3556	4832	Bpvzva.exe	97
PID 4832 wrote to memory of 3556	4832	Bpvzva.exe	97
PID 3556 wrote to memory of 2656	3556	iexplore.exe	98
PID 3556 wrote to memory of 2656	3556	iexplore.exe	98
PID 2656 wrote to memory of 1768	2656	IEXPLORE.EXE	99
PID 2656 wrote to memory of 1768	2656	IEXPLORE.EXE	99
PID 2656 wrote to memory of 1768	2656	IEXPLORE.EXE	99
PID 4832 wrote to memory of 1768	4832	Bpvzva.exe	99
PID 4832 wrote to memory of 1768	4832	Bpvzva.exe	99

C:\Users\Admin\AppData\Local\Temp\762ebe97300798ef2b635c59557ca69a.exe
"C:\Users\Admin\AppData\Local\Temp\762ebe97300798ef2b635c59557ca69a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3488
- C:\Users\Admin\AppData\Local\Temp\762ebe97300798ef2b635c59557ca69a.exe
  "C:\Users\Admin\AppData\Local\Temp\762ebe97300798ef2b635c59557ca69a.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1816
- - C:\Users\Admin\AppData\Roaming\Bpvzva.exe
    "C:\Users\Admin\AppData\Roaming\Bpvzva.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4120
  - - C:\Users\Admin\AppData\Roaming\Bpvzva.exe
      "C:\Users\Admin\AppData\Roaming\Bpvzva.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:4832
    - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
        
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3556
      - 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:2656
        
        C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2656 CREDAT:17410 /prefetch:2
        7⤵
        Modifies Internet Explorer settings
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:1768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
1d7f25dc2d6699e79619c31ff8908f6c

SHA1
de3c1be6c3f3e7f6eadbe715ae575794e5bf1221

SHA256
845c8a47772a9c534cf13a177c83c40db250a6dbbd0a369401ea884b8d058d6e

SHA512
7a6e1765a31821e79b766ea0675ed17d735a40766d5fcd6cc305a8d33b8257d11e492d4ad8626f2909e1c2c2d93e8d04ed133effd0a3ec29324ec3ca36a22a1e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
4d85ef54458938c27c67965dcb3a3558

SHA1
496c5f7f26c8328371b57121b7cd92f5dd6f46a3

SHA256
0c6822119d8bb8ae5653d2d1695221415af3f61da2024fadbd1169f9eaf866fd

SHA512
1d295a5ecff84125d856e845ddef331f1e6b719e0c1b1fe2ba95b402ed298f8b15ae877b51ce3e1e99e435d8c05373c38b8a2e8e7f7725e78b42a8d4914b9da2

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\M8F18HYR\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

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

Filesize
196KB

MD5
762ebe97300798ef2b635c59557ca69a

SHA1
3e26a66c9669f2608c8971796514af84608e5147

SHA256
91a66ae725e5cd1fb89de8caef3616c75671a24acb4a3f366e918f2dd5e0f095

SHA512
2621eaeed19e1a39c76a87c3371d8f2d27feef17220ffc7b6bf01209ac04a5e9525103c63018f8b119e4258236b196743bd5efa72a688186b12394fab7ba54ed

Download Submit
memory/1816-0-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1816-2-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1816-3-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1816-9-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/4832-15-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/4832-16-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download