7a62740141a963f83ee39aa58c651fef990a990bbc1bf235a2b0dcb5f48dd97d

Analysis

max time kernel
102s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/09/2024, 08:41

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General

Target
7a62740141a963f83ee39aa58c651fef990a990bbc1bf235a2b0dcb5f48dd97dN.exe
Size 225KB
Sample240920-klmd4axfnc
SHA256 7a62740141a963f83ee39aa58c651fef990a990bbc1bf235a2b0dcb5f48dd97d
MD5 fcd99813d4814bc5435dc4cdb09a87e0
SHA1 0367e5de1dae1938c46a37e56b9330beaa65cf7e
SHA512 1647744115522b99ec08c85eaa9aa518c64dc9f6348ef22aed2e713dc2b273a55c18e1026bcde6a4c12bbb55e33ea797dcad169ae4e071d9c1088cf1c1bd7f53
SSDEEP 6144:BA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:BATuTAnKGwUAW3ycQqgf
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
808	4892	WerFault.exe	93
2476	2952	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	7a62740141a963f83ee39aa58c651fef990a990bbc1bf235a2b0dcb5f48dd97dN.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
2952	7a62740141a963f83ee39aa58c651fef990a990bbc1bf235a2b0dcb5f48dd97dN.exe
2952	7a62740141a963f83ee39aa58c651fef990a990bbc1bf235a2b0dcb5f48dd97dN.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE
Token: SeShutdownPrivilege	3532	Explorer.EXE
Token: SeCreatePagefilePrivilege	3532	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4892	winver.exe
2952	7a62740141a963f83ee39aa58c651fef990a990bbc1bf235a2b0dcb5f48dd97dN.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2952 wrote to memory of 4892	2952	7a62740141a963f83ee39aa58c651fef990a990bbc1bf235a2b0dcb5f48dd97dN.exe	93
PID 2952 wrote to memory of 4892	2952	7a62740141a963f83ee39aa58c651fef990a990bbc1bf235a2b0dcb5f48dd97dN.exe	93
PID 2952 wrote to memory of 4892	2952	7a62740141a963f83ee39aa58c651fef990a990bbc1bf235a2b0dcb5f48dd97dN.exe	93
PID 2952 wrote to memory of 4892	2952	7a62740141a963f83ee39aa58c651fef990a990bbc1bf235a2b0dcb5f48dd97dN.exe	93
PID 4892 wrote to memory of 3532	4892	winver.exe	56
PID 2952 wrote to memory of 3532	2952	7a62740141a963f83ee39aa58c651fef990a990bbc1bf235a2b0dcb5f48dd97dN.exe	56
PID 2952 wrote to memory of 2640	2952	7a62740141a963f83ee39aa58c651fef990a990bbc1bf235a2b0dcb5f48dd97dN.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2640

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3532
- C:\Users\Admin\AppData\Local\Temp\7a62740141a963f83ee39aa58c651fef990a990bbc1bf235a2b0dcb5f48dd97dN.exe
  "C:\Users\Admin\AppData\Local\Temp\7a62740141a963f83ee39aa58c651fef990a990bbc1bf235a2b0dcb5f48dd97dN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2952
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:4892
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4892 -s 300
      4⤵
      Program crash
      PID:808
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2952 -s 884
    3⤵
    - Program crash
    PID:2476

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:3872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 4892 -ip 4892
1⤵
PID:4820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2952 -ip 2952
1⤵
PID:3292

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/2640-22-0x00000000003C0000-0x00000000003C6000-memory.dmp

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memory/2640-16-0x00000000003C0000-0x00000000003C6000-memory.dmp

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memory/2952-18-0x0000000005B00000-0x0000000006500000-memory.dmp

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memory/2952-2-0x00000000044E0000-0x00000000044E1000-memory.dmp

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memory/2952-3-0x00000000046F0000-0x0000000004D48000-memory.dmp

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memory/2952-4-0x00000000044E0000-0x00000000044E1000-memory.dmp

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memory/2952-5-0x00000000044E0000-0x00000000044E1000-memory.dmp

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memory/2952-6-0x00000000044E0000-0x00000000044E1000-memory.dmp

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memory/2952-1-0x00000000046F0000-0x0000000004D48000-memory.dmp

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memory/2952-10-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/2952-21-0x00000000046F0000-0x0000000004D48000-memory.dmp

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memory/2952-15-0x0000000005B00000-0x0000000006500000-memory.dmp

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memory/3532-8-0x0000000001150000-0x0000000001156000-memory.dmp

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memory/3532-14-0x0000000001190000-0x0000000001196000-memory.dmp

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memory/3532-9-0x0000000001150000-0x0000000001156000-memory.dmp

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