de22f3a6f9e223c9f31fd13031f6adaf35cbb7908e34f30fdb6dd67a545169ff

Analysis

max time kernel
141s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
17/07/2023, 13:27

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General

Target

88550b713dda18_JC.exe
Size

280KB
MD5

88550b713dda181f1cc2c3179a069987
SHA1

b674758b118cc935343d45a1df3be2b371c54879
SHA256

de22f3a6f9e223c9f31fd13031f6adaf35cbb7908e34f30fdb6dd67a545169ff
SHA512

cba7382cff07cb23ea6d3246f8a81a435f2730bb97d3dd7bb4f13fb562ccc26189be133497ee6fe82dc44ebae653c58a2cfaf999e5d9e369e5676b6856133e9a
SSDEEP

6144:QTz+WrPFZvTXb4RyW42vFlOloh2E+7pYUozDK:QTBPFV0RyWl3h2E+7pl

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000\Control Panel\International\Geo\Nation	88550b713dda18_JC.exe

Executes dropped EXE 2 IoCs

pid	Process
4640	lsassys.exe
4996	lsassys.exe

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

System Information Discovery
T1082

Modifies registry class 30 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\halnt\DefaultIcon	88550b713dda18_JC.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\.exe\DefaultIcon\ = "%1"	88550b713dda18_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\.exe\shell\runas\command	88550b713dda18_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\Local Settings	88550b713dda18_JC.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\halnt\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\SysWOW_32\\lsassys.exe\" /START \"%1\" %*"	88550b713dda18_JC.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\halnt\shell\open\command\IsolatedCommand = "\"%1\" %*"	88550b713dda18_JC.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\.exe\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\SysWOW_32\\lsassys.exe\" /START \"%1\" %*"	88550b713dda18_JC.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\.exe\shell\open\command\IsolatedCommand = "\"%1\" %*"	88550b713dda18_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\halnt	88550b713dda18_JC.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\halnt\ = "Application"	88550b713dda18_JC.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\halnt\DefaultIcon\ = "%1"	88550b713dda18_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\.exe\shell\open	88550b713dda18_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\.exe\shell\runas	88550b713dda18_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	88550b713dda18_JC.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\halnt\Content-Type = "application/x-msdownload"	88550b713dda18_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\.exe	88550b713dda18_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\.exe\shell	88550b713dda18_JC.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\halnt\shell\runas\command\IsolatedCommand = "\"%1\" %*"	88550b713dda18_JC.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\.exe\ = "halnt"	88550b713dda18_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\.exe\shell\open\command	88550b713dda18_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\halnt\shell\runas\command	88550b713dda18_JC.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\.exe\shell\runas\command\ = "\"%1\" %*"	88550b713dda18_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\halnt\shell\open\command	88550b713dda18_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\halnt\shell	88550b713dda18_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\halnt\shell\open	88550b713dda18_JC.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\halnt\shell\runas\command\ = "\"%1\" %*"	88550b713dda18_JC.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\.exe\shell\runas\command\IsolatedCommand = "\"%1\" %*"	88550b713dda18_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\halnt\shell\runas	88550b713dda18_JC.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\.exe\Content-Type = "application/x-msdownload"	88550b713dda18_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000_Classes\.exe\DefaultIcon	88550b713dda18_JC.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4640	lsassys.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3912 wrote to memory of 4640	3912	88550b713dda18_JC.exe	86
PID 3912 wrote to memory of 4640	3912	88550b713dda18_JC.exe	86
PID 3912 wrote to memory of 4640	3912	88550b713dda18_JC.exe	86
PID 4640 wrote to memory of 4996	4640	lsassys.exe	87
PID 4640 wrote to memory of 4996	4640	lsassys.exe	87
PID 4640 wrote to memory of 4996	4640	lsassys.exe	87

C:\Users\Admin\AppData\Local\Temp\88550b713dda18_JC.exe
"C:\Users\Admin\AppData\Local\Temp\88550b713dda18_JC.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3912
- C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_32\lsassys.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_32\lsassys.exe" /START "C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_32\lsassys.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4640
- - C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_32\lsassys.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_32\lsassys.exe"
    3⤵
    - Executes dropped EXE
    PID:4996

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\Roaming\Microsoft\SysWOW_32\lsassys.exe

Filesize
280KB

MD5
4fd8e907045b66fac8acbe6781daa609

SHA1
3a4d41318021cfb342eed5492165967df537f1a6

SHA256
691614061b570f855eb14481d31f9c91018a1df9703af410e04e06b7eaa4944a

SHA512
ff76935f71bd3c72a03d59e757bf59d43e5fbd5c12ff3cae090ff803b13e0f44ef7eea2ebb874affffe521bf18f3aa2e82d927d5c76b0349a081dd0d1fa4251f

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_32\lsassys.exe

Filesize
280KB

MD5
4fd8e907045b66fac8acbe6781daa609

SHA1
3a4d41318021cfb342eed5492165967df537f1a6

SHA256
691614061b570f855eb14481d31f9c91018a1df9703af410e04e06b7eaa4944a

SHA512
ff76935f71bd3c72a03d59e757bf59d43e5fbd5c12ff3cae090ff803b13e0f44ef7eea2ebb874affffe521bf18f3aa2e82d927d5c76b0349a081dd0d1fa4251f

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_32\lsassys.exe

Filesize
280KB

MD5
4fd8e907045b66fac8acbe6781daa609

SHA1
3a4d41318021cfb342eed5492165967df537f1a6

SHA256
691614061b570f855eb14481d31f9c91018a1df9703af410e04e06b7eaa4944a

SHA512
ff76935f71bd3c72a03d59e757bf59d43e5fbd5c12ff3cae090ff803b13e0f44ef7eea2ebb874affffe521bf18f3aa2e82d927d5c76b0349a081dd0d1fa4251f

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\SysWOW_32\lsassys.exe

Filesize
280KB

MD5
4fd8e907045b66fac8acbe6781daa609

SHA1
3a4d41318021cfb342eed5492165967df537f1a6

SHA256
691614061b570f855eb14481d31f9c91018a1df9703af410e04e06b7eaa4944a

SHA512
ff76935f71bd3c72a03d59e757bf59d43e5fbd5c12ff3cae090ff803b13e0f44ef7eea2ebb874affffe521bf18f3aa2e82d927d5c76b0349a081dd0d1fa4251f

Download Submit