23b1660bc99b00ca748548de68ae4b9a3c42fecf01d572ba5075dde2c196fe0c

Analysis

max time kernel
138s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23-02-2024 22:52

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General

Target

a08bc8efa9fa2e9d5d2074ef6cac5d48.exe
Size

173KB
MD5

a08bc8efa9fa2e9d5d2074ef6cac5d48
SHA1

0ce76d19a602e58a8bb81d8baa5a609bc07647cd
SHA256

23b1660bc99b00ca748548de68ae4b9a3c42fecf01d572ba5075dde2c196fe0c
SHA512

e3ffdb3cb5caf743159e94e29d47848d7a6a97393703762a1568aa688d14695f7f5eda91ce07d2a1ad0af8741b80f826f8c3f61eff1b9814720c484b57ad5fda
SSDEEP

3072:C1rvjnrdU4KN1/iKlyLo8NJtikmH4SLN3HMIuobD4Ryi/OBVZl03pYe46KX:CVL64g1MLocmH7B3sI1rioc3pYeF

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
464	IEXPLORE.EXE

Loads dropped DLL 3 IoCs

pid	Process
4616	rundll32.exe
464	IEXPLORE.EXE
464	IEXPLORE.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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rofes = "rundll32.exe \"C:\\Users\\Admin\\AppData\\Roaming\\rofes.dll\",GetSystemParameter"	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 34 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31090347"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31090347"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31090347"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31090347"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{52074B30-D29E-11EE-A646-760DAD962F84} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "644304047"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "725867367"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "648680316"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\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 (data)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000000000001000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "644304047"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "415493766"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4824	iexplore.exe
4824	iexplore.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
4824	iexplore.exe
4824	iexplore.exe
4016	IEXPLORE.EXE
4016	IEXPLORE.EXE
4616	rundll32.exe
4824	iexplore.exe
4824	iexplore.exe
464	IEXPLORE.EXE
464	IEXPLORE.EXE
4616	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 4616	1576	a08bc8efa9fa2e9d5d2074ef6cac5d48.exe	88
PID 1576 wrote to memory of 4616	1576	a08bc8efa9fa2e9d5d2074ef6cac5d48.exe	88
PID 1576 wrote to memory of 4616	1576	a08bc8efa9fa2e9d5d2074ef6cac5d48.exe	88
PID 4824 wrote to memory of 4016	4824	iexplore.exe	96
PID 4824 wrote to memory of 4016	4824	iexplore.exe	96
PID 4824 wrote to memory of 4016	4824	iexplore.exe	96
PID 4824 wrote to memory of 464	4824	iexplore.exe	97
PID 4824 wrote to memory of 464	4824	iexplore.exe	97
PID 4824 wrote to memory of 464	4824	iexplore.exe	97

C:\Users\Admin\AppData\Local\Temp\a08bc8efa9fa2e9d5d2074ef6cac5d48.exe
"C:\Users\Admin\AppData\Local\Temp\a08bc8efa9fa2e9d5d2074ef6cac5d48.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\rofes.dll",GetSystemParameter
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetWindowsHookEx
  PID:4616

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:1012

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:4824
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4824 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:4016
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4824 CREDAT:17414 /prefetch:2
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:464

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\Local\Microsoft\Windows\INetCache\IE\ARC7ZUJB\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Roaming\rofes.dll

Filesize
173KB

MD5
4ca5b13266d90c3dcab042ea8cffc3b2

SHA1
4ac4fa43aefd45a551ef1bc6e5357ef88811e280

SHA256
631b3e4721892a466d693bdb6e3fd992ca630c0ee9c2ae2aa97a37e2c5f1e1b1

SHA512
6d07ab44e8bb86659de497a15a2fa4b491a2cfab5ad5a4d84815fe3b37fe12915947d1cb390406145b4f0d188a89711f36767443b7437b092c1418abb45c9edb

Download Submit
memory/1576-0-0x00000000006B0000-0x00000000006C4000-memory.dmp

Filesize
80KB

Download
memory/1576-1-0x00000000006B0000-0x00000000006C4000-memory.dmp

Filesize
80KB

Download
memory/1576-2-0x00000000006E0000-0x000000000070E000-memory.dmp

Filesize
184KB

Download
memory/1576-6-0x0000000010000000-0x000000001002E000-memory.dmp

Filesize
184KB

Download
memory/1576-18-0x00000000006B0000-0x00000000006C4000-memory.dmp

Filesize
80KB

Download
memory/4616-13-0x0000000000EA0000-0x0000000000ECE000-memory.dmp

Filesize
184KB

Download
memory/4616-12-0x00000000007E0000-0x00000000007F4000-memory.dmp

Filesize
80KB

Download
memory/4616-17-0x0000000010000000-0x000000001002E000-memory.dmp

Filesize
184KB

Download
memory/4616-19-0x00000000007E0000-0x00000000007F4000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads