237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

Analysis

max time kernel
91s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
28-06-2023 02:43

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General

Target

rbkgplueajs.exe
Size

872KB
MD5

c56b5f0201a3b3de53e561fe76912bfd
SHA1

2a4062e10a5de813f5688221dbeb3f3ff33eb417
SHA256

237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d
SHA512

195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c
SSDEEP

12288:6pVWeOV7GtINsegA/hMyyzlcqikvAfcN9b2MyZa31twoPTdFxgawV2M01:6T3E53Myyzl0hMf1tr7Caw8M01

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 registry class 20 IoCs

Processes:

rbkgplueajs.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell	rbkgplueajs.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000	rbkgplueajs.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	rbkgplueajs.exe
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags	rbkgplueajs.exe
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	rbkgplueajs.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	rbkgplueajs.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 14002e80922b16d365937a46956b92703aca08af0000	rbkgplueajs.exe
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	rbkgplueajs.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	rbkgplueajs.exe
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	rbkgplueajs.exe
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	rbkgplueajs.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Documents"	rbkgplueajs.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	rbkgplueajs.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	rbkgplueajs.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1"	rbkgplueajs.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	rbkgplueajs.exe
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	rbkgplueajs.exe
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings	rbkgplueajs.exe
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	rbkgplueajs.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff	rbkgplueajs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

rbkgplueajs.exe

pid process

3600 rbkgplueajs.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

rbkgplueajs.exe

pid process

3600 rbkgplueajs.exe

pid	process
3600	rbkgplueajs.exe

pid	process
3600	rbkgplueajs.exe

C:\Users\Admin\AppData\Local\Temp\rbkgplueajs.exe
"C:\Users\Admin\AppData\Local\Temp\rbkgplueajs.exe"
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:3600

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\iconcache_idx.db

Filesize
28KB

MD5
add127d1b2116a7d69bd1398fd0b0e2a

SHA1
0959d232bc5ceb58e742f0eace18efe901dbf376

SHA256
4fb6fa2f152c3505f39a5a55e6dc4cc0ee27e01e0b92e9feb58ed094fa535feb

SHA512
1b02664f6aca3e2170159dd0aba897dbb131bfb137b7f267bc0c645df976d930153508670c976093fafdcccb856231cabef6fff651bcf5e66a7ea8913aca1bd3

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