c535c0448c348958d31b41a49451fe0d15dd3def4ad929ff6a46c8346b2f4c73

Analysis

max time kernel
149s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
02/04/2023, 17:11

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General

Target

c535c0448c348958d31b41a49451fe0d15dd3def4ad929ff6a46c8346b2f4c73.exe
Size

4.7MB
MD5

ddb4dfde76b491d603e003da4d78d994
SHA1

f1a1bf91006dec4e990a6c8ca11a6376a4fad8d0
SHA256

c535c0448c348958d31b41a49451fe0d15dd3def4ad929ff6a46c8346b2f4c73
SHA512

ac81fdbf897145b79db94a6547435ab715dce5742eef92b87431f14bede574eaf439b3a256ca8ff5a08e0ecba4e8a5341d6efd287a31cb71efb782e0b8e4737a
SSDEEP

98304:ATFV+rR0sKsx9o9VprGGGhCLfsFw8E+0kgJJZMESxUtBt:ATwSs7vo9i3hCQ4dJJZM7xUtn

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
9	1148	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
1148	rundll32.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1148 set thread context of 4196	1148	rundll32.exe	86
PID 1148 set thread context of 4452	1148	rundll32.exe	88
PID 1148 set thread context of 4436	1148	rundll32.exe	89

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4112	3888	WerFault.exe	79

Checks processor information in registry 2 TTPs 26 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Status	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Configuration Data	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Component Information	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\~MHz	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Update Revision	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\FeatureSet	rundll32.exe
Key value enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	rundll32.exe
Key value enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Platform Specific Field 1	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Update Status	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Configuration Data	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Previous Update Revision	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\FeatureSet	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Identifier	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString	rundll32.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Component Information	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Platform Specific Field 1	rundll32.exe

Modifies registry class 23 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	rundll32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings	rundll32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	rundll32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	rundll32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	rundll32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0	rundll32.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe
1148	rundll32.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4196	rundll32.exe
4452	rundll32.exe
4436	rundll32.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3888 wrote to memory of 1148	3888	c535c0448c348958d31b41a49451fe0d15dd3def4ad929ff6a46c8346b2f4c73.exe	80
PID 3888 wrote to memory of 1148	3888	c535c0448c348958d31b41a49451fe0d15dd3def4ad929ff6a46c8346b2f4c73.exe	80
PID 3888 wrote to memory of 1148	3888	c535c0448c348958d31b41a49451fe0d15dd3def4ad929ff6a46c8346b2f4c73.exe	80
PID 1148 wrote to memory of 4196	1148	rundll32.exe	86
PID 1148 wrote to memory of 4196	1148	rundll32.exe	86
PID 1148 wrote to memory of 4196	1148	rundll32.exe	86
PID 1148 wrote to memory of 4452	1148	rundll32.exe	88
PID 1148 wrote to memory of 4452	1148	rundll32.exe	88
PID 1148 wrote to memory of 4452	1148	rundll32.exe	88
PID 1148 wrote to memory of 4436	1148	rundll32.exe	89
PID 1148 wrote to memory of 4436	1148	rundll32.exe	89
PID 1148 wrote to memory of 4436	1148	rundll32.exe	89

C:\Users\Admin\AppData\Local\Temp\c535c0448c348958d31b41a49451fe0d15dd3def4ad929ff6a46c8346b2f4c73.exe
"C:\Users\Admin\AppData\Local\Temp\c535c0448c348958d31b41a49451fe0d15dd3def4ad929ff6a46c8346b2f4c73.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3888
- C:\Windows\SysWOW64\rundll32.exe
  C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\Uieiuateoq.dll,start
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1148
- - C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 19198
    3⤵
    - Modifies registry class
    - Suspicious use of FindShellTrayWindow
    PID:4196
- - C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 19198
    3⤵
    - Modifies registry class
    - Suspicious use of FindShellTrayWindow
    PID:4452
- - C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 19198
    3⤵
    - Modifies registry class
    - Suspicious use of FindShellTrayWindow
    PID:4436
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3888 -s 412
  2⤵
  - Program crash
  PID:4112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3888 -ip 3888
1⤵
PID:3924

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1188

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Uieiuateoq.dll

Filesize
5.4MB

MD5
09b7fe4b55f6016ce3eb1271bd173123

SHA1
6199c259178e87c76a770d87b49aff15c2608acd

SHA256
8c6f657165beecf4068823ccb5656d1c2d1ab3eacc6884e7ac69ccc82574033f

SHA512
a1d0bc6ab41cea05220bfcc71cc782ea4c9bf1b038c3463b733e38ce70d752cde261cf047c15dacb7f6ba9c5909027857d411cb276620ca951ae6afc193eb754

Download Submit
C:\Users\Admin\AppData\Local\Temp\Uieiuateoq.dll

Filesize
5.4MB

MD5
09b7fe4b55f6016ce3eb1271bd173123

SHA1
6199c259178e87c76a770d87b49aff15c2608acd

SHA256
8c6f657165beecf4068823ccb5656d1c2d1ab3eacc6884e7ac69ccc82574033f

SHA512
a1d0bc6ab41cea05220bfcc71cc782ea4c9bf1b038c3463b733e38ce70d752cde261cf047c15dacb7f6ba9c5909027857d411cb276620ca951ae6afc193eb754

Download Submit
memory/1148-186-0x00000000041C0000-0x0000000004300000-memory.dmp

Filesize
1.2MB

Download
memory/1148-155-0x0000000000400000-0x000000000097E000-memory.dmp

Filesize
5.5MB

Download
memory/1148-156-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/1148-157-0x0000000004320000-0x0000000004321000-memory.dmp

Filesize
4KB

Download
memory/1148-158-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/1148-159-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/1148-170-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/1148-171-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/1148-172-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/1148-175-0x00000000041C0000-0x0000000004300000-memory.dmp

Filesize
1.2MB

Download
memory/1148-176-0x00000000041C0000-0x0000000004300000-memory.dmp

Filesize
1.2MB

Download
memory/1148-173-0x00000000030B0000-0x00000000030B1000-memory.dmp

Filesize
4KB

Download
memory/1148-174-0x0000000000400000-0x000000000097E000-memory.dmp

Filesize
5.5MB

Download
memory/1148-177-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/1148-179-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/1148-180-0x00000000041C0000-0x0000000004300000-memory.dmp

Filesize
1.2MB

Download
memory/1148-181-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/1148-183-0x00000000041C0000-0x0000000004300000-memory.dmp

Filesize
1.2MB

Download
memory/1148-184-0x0000000004A80000-0x0000000004A81000-memory.dmp

Filesize
4KB

Download
memory/1148-185-0x00000000041C0000-0x0000000004300000-memory.dmp

Filesize
1.2MB

Download
memory/1148-189-0x0000000000400000-0x000000000097E000-memory.dmp

Filesize
5.5MB

Download
memory/1148-213-0x0000000000400000-0x000000000097E000-memory.dmp

Filesize
5.5MB

Download
memory/1148-187-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/1148-198-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/1148-218-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/1148-208-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/1148-228-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/1148-227-0x00000000041C0000-0x0000000004300000-memory.dmp

Filesize
1.2MB

Download
memory/1148-138-0x0000000000990000-0x0000000000991000-memory.dmp

Filesize
4KB

Download
memory/1148-226-0x00000000041C0000-0x0000000004300000-memory.dmp

Filesize
1.2MB

Download
memory/1148-225-0x0000000004450000-0x0000000004451000-memory.dmp

Filesize
4KB

Download
memory/1148-224-0x00000000041C0000-0x0000000004300000-memory.dmp

Filesize
1.2MB

Download
memory/1148-222-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/1148-200-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/1148-201-0x00000000041C0000-0x0000000004300000-memory.dmp

Filesize
1.2MB

Download
memory/1148-203-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/1148-204-0x00000000041C0000-0x0000000004300000-memory.dmp

Filesize
1.2MB

Download
memory/1148-205-0x0000000004440000-0x0000000004441000-memory.dmp

Filesize
4KB

Download
memory/1148-206-0x00000000041C0000-0x0000000004300000-memory.dmp

Filesize
1.2MB

Download
memory/1148-207-0x00000000041C0000-0x0000000004300000-memory.dmp

Filesize
1.2MB

Download
memory/1148-221-0x00000000041C0000-0x0000000004300000-memory.dmp

Filesize
1.2MB

Download
memory/1148-220-0x00000000035A0000-0x00000000040F9000-memory.dmp

Filesize
11.3MB

Download
memory/3888-139-0x0000000000400000-0x0000000000C6C000-memory.dmp

Filesize
8.4MB

Download
memory/3888-137-0x0000000003140000-0x0000000003814000-memory.dmp

Filesize
6.8MB

Download
memory/4196-192-0x0000000000360000-0x00000000005FF000-memory.dmp

Filesize
2.6MB

Download
memory/4196-194-0x0000018B1B660000-0x0000018B1B910000-memory.dmp

Filesize
2.7MB

Download
memory/4196-188-0x00007FFA5CD80000-0x00007FFA5CD81000-memory.dmp

Filesize
4KB

Download
memory/4196-190-0x0000018B1D0B0000-0x0000018B1D1F0000-memory.dmp

Filesize
1.2MB

Download
memory/4196-193-0x0000018B1B660000-0x0000018B1B910000-memory.dmp

Filesize
2.7MB

Download
memory/4196-191-0x0000018B1D0B0000-0x0000018B1D1F0000-memory.dmp

Filesize
1.2MB

Download
memory/4196-195-0x0000018B1B660000-0x0000018B1B910000-memory.dmp

Filesize
2.7MB

Download
memory/4196-196-0x0000018B1B660000-0x0000018B1B910000-memory.dmp

Filesize
2.7MB

Download
memory/4436-229-0x00007FFA5CD80000-0x00007FFA5CD81000-memory.dmp

Filesize
4KB

Download
memory/4436-234-0x00000255166A0000-0x0000025516950000-memory.dmp

Filesize
2.7MB

Download
memory/4452-210-0x00000162B5BB0000-0x00000162B5CF0000-memory.dmp

Filesize
1.2MB

Download
memory/4452-209-0x00007FFA5CD80000-0x00007FFA5CD81000-memory.dmp

Filesize
4KB

Download
memory/4452-212-0x00000162B5D20000-0x00000162B5FD0000-memory.dmp

Filesize
2.7MB

Download
memory/4452-217-0x00000162B5D20000-0x00000162B5FD0000-memory.dmp

Filesize
2.7MB

Download
memory/4452-214-0x00000162B5D20000-0x00000162B5FD0000-memory.dmp

Filesize
2.7MB

Download
memory/4452-211-0x00000162B5BB0000-0x00000162B5CF0000-memory.dmp

Filesize
1.2MB

Download