39bacaa823dc392139d58b754115d90c8c0acc816a470c2640102c1689e150f5

General

Target

isocore.exe
Size

116KB
MD5

ddfb0520ee255f320322f381ba04390d
SHA1

2a8cc9c2c86e79defd073e0ddde90261eafc81df
SHA256

3aff792962175ad4d601e65b4908c1f801bb4eee0c8d1ec4a1b59648bd7efe70
SHA512

113ed176c2c3c7230d17643a8784d82778b767dedb71323b5ce6d55e8e9945add50ac4b39692ee0cf293d590e755619fc33bcb55ca8f60507732e914df8e98bd
SSDEEP

3072:yLk395hYXJJtnXOgGOpCm52FpKDHveKc4mvWU:yQqDZ+gRpCmMFpwmGmvH

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
1252	isocore.exe
1252	isocore.exe
1252	isocore.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Internet Explorer\1247070416.dat	isocore.exe
File opened for modification	C:\Program Files (x86)\Internet Explorer\1247070416.dat	isocore.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\Software\Microsoft\Internet Explorer\Main	isocore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "No"	isocore.exe
Key deleted	\REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000\SOFTWARE\MICROSOFT\INTERNET EXPLORER\URLSEARCHHOOKS	isocore.exe

Modifies registry class 22 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12470716-2024-0495-951B-9EA34E34E8CC}\VersionIndependentProgID\	isocore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000_Classes\PROTOCOLS\Name-Space Handler\about\{12470716-2024-0495-951B-9EA34E34E8CC}\CLSID = "{12470716-2024-0495-951B-9EA34E34E8CC}"	isocore.exe
Key created	\REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000_Classes\PROTOCOLS	isocore.exe
Key created	\REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000_Classes\PROTOCOLS\Name-Space Handler\http	isocore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12470716-2024-0495-951B-9EA34E34E8CC}	isocore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12470716-2024-0495-951B-9EA34E34E8CC}\AppID = "{73A7FFA7-AA3A-49E5-A777-713B7DB78E9C}"	isocore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12470716-2024-0495-951B-9EA34E34E8CC}\ProgID	isocore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12470716-2024-0495-951B-9EA34E34E8CC}\ProgID\	isocore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12470716-2024-0495-951B-9EA34E34E8CC}\TypeLib\ = "{04F7BD61-E11D-4BB3-B6FE-B730BCA713D4}"	isocore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12470716-2024-0495-951B-9EA34E34E8CC}\TypeLib	isocore.exe
Key created	\REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000_Classes\PROTOCOLS\Name-Space Handler\http\{12470716-2024-0495-951B-9EA34E34E8CC}	isocore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000_Classes\PROTOCOLS\Name-Space Handler\http\{12470716-2024-0495-951B-9EA34E34E8CC}\CLSID = "{12470716-2024-0495-951B-9EA34E34E8CC}"	isocore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12470716-2024-0495-951B-9EA34E34E8CC}\ = "Windows HttpFilter"	isocore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12470716-2024-0495-951B-9EA34E34E8CC}\InprocServer32	isocore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12470716-2024-0495-951B-9EA34E34E8CC}\InprocServer32\ThreadingModel = "Apartment"	isocore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12470716-2024-0495-951B-9EA34E34E8CC}\Programmable	isocore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12470716-2024-0495-951B-9EA34E34E8CC}\Programmable\1 = "1"	isocore.exe
Key created	\REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000_Classes\PROTOCOLS\Name-Space Handler\about\{12470716-2024-0495-951B-9EA34E34E8CC}	isocore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12470716-2024-0495-951B-9EA34E34E8CC}\InprocServer32\ = "1247070416.dat"	isocore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12470716-2024-0495-951B-9EA34E34E8CC}\VersionIndependentProgID	isocore.exe
Key created	\REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000_Classes\PROTOCOLS\Name-Space Handler	isocore.exe
Key created	\REGISTRY\USER\S-1-5-21-1826666146-2574340311-1877551059-1000_Classes\PROTOCOLS\Name-Space Handler\about	isocore.exe

C:\Users\Admin\AppData\Local\Temp\isocore.exe
"C:\Users\Admin\AppData\Local\Temp\isocore.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Modifies registry class
PID:1252

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsr6552.tmp\JNsisExt.dll

Filesize
26KB

MD5
0894e240135a952bc74f532ae9b7b6f9

SHA1
a930889f3b8234d0870cd19a7a613b0363266a72

SHA256
c57fc56d5d1c886054cd0cd734945c08abcdb60c355f0ff0882714aa30ad0e41

SHA512
b422dd6684b0d052296284be58bc437659c6e327feb41b3f229ba438c49e54eea257e9b476f294fefb721868dd93bd36ed1a9252c179f0b3013a5e7bb1ecb234

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsr6552.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
memory/1252-10-0x0000000003030000-0x0000000003039000-memory.dmp

Filesize
36KB

Download

Analysis

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