c62ecf891a19a07280c5d1df489af92382a920773beb7e5b9373e2d1aca4a631

Analysis

max time kernel
143s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01/01/2024, 18:19

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General

Target

3d8b001a1ddbe60f402d1a439832275d.exe
Size

16KB
MD5

3d8b001a1ddbe60f402d1a439832275d
SHA1

1cfa2bc0377c7bf314f326bc933901bf41a91112
SHA256

c62ecf891a19a07280c5d1df489af92382a920773beb7e5b9373e2d1aca4a631
SHA512

c6c4db6596d2cc551f2a6f219434219d1b5c77445e62586ab2e78bd441b44d645a4d32e8add5feadbc25d403b950864ba65e5dbe0229a1c00b690bf387decb3c
SSDEEP

384:lQb3v9KGj8qSA7ETxg6M/xoUXKSrPxcR0T:gEDA7YxNM/xoUXK+c

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1660	fbtre6.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4016-0-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral2/files/0x0006000000023205-5.dat	upx
behavioral2/memory/4016-7-0x0000000000400000-0x000000000040D000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	\??\c:\windows\fbtre6.exe	3d8b001a1ddbe60f402d1a439832275d.exe
File created	\??\c:\windows\fmark2.dat	fbtre6.exe

Modifies Internet Explorer settings 1 TTPs 29 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31079647"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "410898213"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\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-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31079647"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1250769872"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{70A50328-A8D2-11EE-9BE3-5A16FF4F52D9} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31079647"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1248738701"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1264676153"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3472	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3472	iexplore.exe
3472	iexplore.exe
380	IEXPLORE.EXE
380	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4016 wrote to memory of 1660	4016	3d8b001a1ddbe60f402d1a439832275d.exe	89
PID 4016 wrote to memory of 1660	4016	3d8b001a1ddbe60f402d1a439832275d.exe	89
PID 4016 wrote to memory of 1660	4016	3d8b001a1ddbe60f402d1a439832275d.exe	89
PID 4016 wrote to memory of 836	4016	3d8b001a1ddbe60f402d1a439832275d.exe	88
PID 4016 wrote to memory of 836	4016	3d8b001a1ddbe60f402d1a439832275d.exe	88
PID 4016 wrote to memory of 836	4016	3d8b001a1ddbe60f402d1a439832275d.exe	88
PID 3472 wrote to memory of 380	3472	iexplore.exe	100
PID 3472 wrote to memory of 380	3472	iexplore.exe	100
PID 3472 wrote to memory of 380	3472	iexplore.exe	100
PID 1660 wrote to memory of 1312	1660	fbtre6.exe	103
PID 1660 wrote to memory of 1312	1660	fbtre6.exe	103
PID 1660 wrote to memory of 1312	1660	fbtre6.exe	103

C:\Users\Admin\AppData\Local\Temp\3d8b001a1ddbe60f402d1a439832275d.exe
"C:\Users\Admin\AppData\Local\Temp\3d8b001a1ddbe60f402d1a439832275d.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4016
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c c:\5465465465463.bat
  2⤵
  PID:836
- \??\c:\windows\fbtre6.exe
  c:\windows\fbtre6.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:1660
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c c:\5465465465463.bat
    3⤵
    PID:1312

C:\Program Files (x86)\Internet Explorer\ielowutil.exe
"C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
1⤵
PID:2584

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3472
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3472 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

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\Local\Microsoft\Windows\INetCache\IE\FRK3R5YS\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
\??\c:\5465465465463.bat

Filesize
209B

MD5
e57bfa1ecb6bff66988a982f36dde446

SHA1
5e9ec6f6e34b0e2b96bb4182cfd641ac1ddb25fe

SHA256
68d31351cc8bb5648809521cf8e8c37ee0b04779f6aa5ef2131f803a027d0bcb

SHA512
efbf2f4bd0d6e984531c1d40d4588c1c9425f76ab3e645e25eed693b9f3a0d17d60561355a7845ac5c0cdac1ff166bc485d35cabc453e1b56b35898ded7850b7

Download Submit
\??\c:\5465465465463.bat

Filesize
111B

MD5
c4d633ae442767f9c8f5a6668054587c

SHA1
0db84468d067409e2496d1c51577d91a63900da0

SHA256
612b21979c958e557d17fb6851291ee040b13da63dabf2fbf95b2c9e4af55cd0

SHA512
58555cffa50ae87bf1db48236eb929518f170ecaa94b8297f75d92fc5526f0f2622a3f4925b37bdcab681d23b192b187d3af8e7c0fc962aadb660093577d4088

Download Submit
\??\c:\windows\fbtre6.exe

Filesize
16KB

MD5
3d8b001a1ddbe60f402d1a439832275d

SHA1
1cfa2bc0377c7bf314f326bc933901bf41a91112

SHA256
c62ecf891a19a07280c5d1df489af92382a920773beb7e5b9373e2d1aca4a631

SHA512
c6c4db6596d2cc551f2a6f219434219d1b5c77445e62586ab2e78bd441b44d645a4d32e8add5feadbc25d403b950864ba65e5dbe0229a1c00b690bf387decb3c

Download Submit
memory/4016-0-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/4016-7-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download