73fb4f2ef418b2bdf578f09df324711cbcd4689e4f622b7944aefa0317b2c1a0

Analysis

max time kernel
148s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
18/07/2023, 13:53

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General

Target

b838edd541829b_JC.exe
Size

2.1MB
MD5

b838edd541829beb6c708fdb45ca94c6
SHA1

e9869626fb54ad414ae7c6684c1fa905067c680c
SHA256

73fb4f2ef418b2bdf578f09df324711cbcd4689e4f622b7944aefa0317b2c1a0
SHA512

2be06750abc00b28b87cbe84f1e59be3325175c4cf227263960f999bbd1a7f2d18cec967c39b6d3a68f4c3709af05471e9bbc4c4d80fe5886bfafc28d602e2db
SSDEEP

24576:8i5WyAHIlqh2hvhuQZlNVHhZ4H9w0Z2CCwaYJoRk:8i5QwuQZlNVB0w0HCwaYJom

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 32 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE013754-81DE-46BC-BEEB-492C810900BF}	b838edd541829b_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	b838edd541829b_JC.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff	b838edd541829b_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ETXViewerLib.ETXViewerApp	b838edd541829b_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE013754-81DE-46BC-BEEB-492C810900BF}\ = "ETXViewerLib.ETXViewerApp"	b838edd541829b_JC.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1"	b838edd541829b_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	b838edd541829b_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ETXViewerLib.ETXViewerApp\CLSID\ = "{DE013754-81DE-46BC-BEEB-492C810900BF}"	b838edd541829b_JC.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	b838edd541829b_JC.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	b838edd541829b_JC.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	b838edd541829b_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ETXViewerLib.ETXViewerApp\CLSID	b838edd541829b_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE013754-81DE-46BC-BEEB-492C810900BF}\ProgID	b838edd541829b_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE013754-81DE-46BC-BEEB-492C810900BF}\ProgID\ = "ETXViewerLib.ETXViewerApp"	b838edd541829b_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE013754-81DE-46BC-BEEB-492C810900BF}\InprocHandler32\ = "ole32.dll"	b838edd541829b_JC.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	b838edd541829b_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags	b838edd541829b_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	b838edd541829b_JC.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	b838edd541829b_JC.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000	b838edd541829b_JC.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 19002f433a5c000000000000000000000000000000000000000000	b838edd541829b_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	b838edd541829b_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE013754-81DE-46BC-BEEB-492C810900BF}\LocalServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\B838ED~1.EXE"	b838edd541829b_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings	b838edd541829b_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell	b838edd541829b_JC.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic"	b838edd541829b_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	b838edd541829b_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	b838edd541829b_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ETXViewerLib.ETXViewerApp\ = "ETXViewerLib.ETXViewerApp"	b838edd541829b_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE013754-81DE-46BC-BEEB-492C810900BF}\InprocHandler32	b838edd541829b_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DE013754-81DE-46BC-BEEB-492C810900BF}\LocalServer32	b838edd541829b_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	b838edd541829b_JC.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1952	b838edd541829b_JC.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1952	b838edd541829b_JC.exe
1952	b838edd541829b_JC.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1952 wrote to memory of 1388	1952	b838edd541829b_JC.exe	86
PID 1952 wrote to memory of 1388	1952	b838edd541829b_JC.exe	86

C:\Users\Admin\AppData\Local\Temp\b838edd541829b_JC.exe
"C:\Users\Admin\AppData\Local\Temp\b838edd541829b_JC.exe"
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:1388

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:3900

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

Windows 7 deprecation

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