71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031c

Analysis

max time kernel
106s
max time network
106s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27/09/2024, 02:32

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General

Target
71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe
Size 225KB
Sample240927-c1ensstdnb
SHA256 71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031c
MD5 8d3482d61be5ff0deb680d598fbc4c30
SHA1 089d64a5650caf6ffae0d564a77888b2c512c83e
SHA512 7f0a6f5b518075caa472f36979b678b9f6ee153c5bbb29b13fbf846a20e46483d4b149d15a4390e15a7f71d025373a020652e9b6c9e06c62c8e18962d1ec87da
SSDEEP 6144:MA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:MATuTAnKGwUAW3ycQqgf
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

discovery

Malware Config

Signatures

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3996	744	WerFault.exe	93
3464	1556	WerFault.exe	81

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client"	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe
1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3388	Explorer.EXE
Token: SeCreatePagefilePrivilege	3388	Explorer.EXE
Token: SeShutdownPrivilege	3388	Explorer.EXE
Token: SeCreatePagefilePrivilege	3388	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
744	winver.exe
1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1556 wrote to memory of 744	1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe	93
PID 1556 wrote to memory of 744	1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe	93
PID 1556 wrote to memory of 744	1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe	93
PID 1556 wrote to memory of 744	1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe	93
PID 744 wrote to memory of 3388	744	winver.exe	56
PID 1556 wrote to memory of 3388	1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe	56
PID 1556 wrote to memory of 2808	1556	71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2808

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3388
- C:\Users\Admin\AppData\Local\Temp\71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe
  "C:\Users\Admin\AppData\Local\Temp\71b2ccac6f315ba6af902e3148fbd25070cc97f44db69094b805ae54f7a5031cN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1556
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:744
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 744 -s 300
      4⤵
      Program crash
      PID:3996
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1556 -s 932
    3⤵
    - Program crash
    PID:3464

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 744 -ip 744
1⤵
PID:4984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1556 -ip 1556
1⤵
PID:800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1556-1-0x00000000045D0000-0x0000000004C28000-memory.dmp

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memory/1556-2-0x00000000023E0000-0x00000000023E1000-memory.dmp

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memory/1556-3-0x00000000045D0000-0x0000000004C28000-memory.dmp

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memory/1556-7-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1556-10-0x0000000005AE0000-0x00000000064E0000-memory.dmp

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memory/1556-19-0x00000000045D0000-0x0000000004C28000-memory.dmp

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memory/1556-15-0x0000000005AE0000-0x00000000064E0000-memory.dmp

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memory/2808-14-0x00000000008B0000-0x00000000008B6000-memory.dmp

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memory/2808-20-0x00000000008B0000-0x00000000008B6000-memory.dmp

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memory/3388-6-0x0000000000A50000-0x0000000000A56000-memory.dmp

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memory/3388-5-0x0000000000A50000-0x0000000000A56000-memory.dmp

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memory/3388-11-0x0000000000A90000-0x0000000000A96000-memory.dmp

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