841a98464457d2fceff8a35e6b575b1e5e0681f7232cb3c2b94c698e38960a25

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Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
25-03-2024 20:38

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General

Target

Prefetch/APPINSTALLER.EXE-EBDB10CE.pf
Size

37KB
MD5

75a1d8ebe0e3867b4db922178aea875b
SHA1

dae592de043c8097d0acf9d0b093167f0ceabefd
SHA256

2aa02a0c3e8df29cd63fabd67ac0485e714905283a87c913693a700f0146d479
SHA512

d6b3efcaa56e742dd72cea39a9946f345af33df87932ec9e0581b985a1ba3b2b66442112bbf97eeaf2e7cb0243b3e917c3036e617d8612ebee890aeec3b2d282
SSDEEP

768:v3rG2ubVYScxo8XPDmLEnovaE2/s5XGcoWFUHEavuR2Ie7Bd:v7G2uMbmLGAGcBmqPe9d

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Internet Explorer Phishing Filter 1 TTPs 2 IoCs

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\ClientSupported_MigrationTime = 12e2ba990f69da01	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\PhishingFilter	iexplore.exe

Modifies Internet Explorer settings 1 TTPs 17 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{14CF9D18-EAE8-11EE-B3C6-4640DA9D21C7} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\RepId	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\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 (str)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\RepId\PublicId = "{6AB3D43A-0899-46E7-92BD-69F36DE568E8}"	iexplore.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000_Classes\Local Settings	OpenWith.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4284	OpenWith.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4060	iexplore.exe
4060	iexplore.exe
4060	iexplore.exe

Suspicious use of SetWindowsHookEx 15 IoCs

pid	Process
4284	OpenWith.exe
4284	OpenWith.exe
4284	OpenWith.exe
4284	OpenWith.exe
4284	OpenWith.exe
4284	OpenWith.exe
4284	OpenWith.exe
4284	OpenWith.exe
4284	OpenWith.exe
4284	OpenWith.exe
4284	OpenWith.exe
4060	iexplore.exe
4060	iexplore.exe
3788	IEXPLORE.EXE
3788	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4284 wrote to memory of 4060	4284	OpenWith.exe	108
PID 4284 wrote to memory of 4060	4284	OpenWith.exe	108
PID 4060 wrote to memory of 3788	4060	iexplore.exe	110
PID 4060 wrote to memory of 3788	4060	iexplore.exe	110
PID 4060 wrote to memory of 3788	4060	iexplore.exe	110

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\APPINSTALLER.EXE-EBDB10CE.pf
1⤵
- Modifies registry class
PID:1636

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4284
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\Prefetch\APPINSTALLER.EXE-EBDB10CE.pf
  2⤵
  - Modifies Internet Explorer Phishing Filter
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4060
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4060 CREDAT:17410 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:3788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\Downloads\APPINSTALLER.EXE-EBDB10CE.pf

Filesize
37KB

MD5
75a1d8ebe0e3867b4db922178aea875b

SHA1
dae592de043c8097d0acf9d0b093167f0ceabefd

SHA256
2aa02a0c3e8df29cd63fabd67ac0485e714905283a87c913693a700f0146d479

SHA512
d6b3efcaa56e742dd72cea39a9946f345af33df87932ec9e0581b985a1ba3b2b66442112bbf97eeaf2e7cb0243b3e917c3036e617d8612ebee890aeec3b2d282

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Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads