7fa318ac58779ff28c264805cbe34ffd476a24e1f0f99182df1b3f8ee82414d8

Analysis

max time kernel
119s
max time network
107s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
24/07/2024, 15:32

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General

Target
a0dc8e73fe2cb35738d1e98d551c5520N.exe
Size 237KB
Sample240724-syrtcawelc
SHA256 7fa318ac58779ff28c264805cbe34ffd476a24e1f0f99182df1b3f8ee82414d8
MD5 a0dc8e73fe2cb35738d1e98d551c5520
SHA1 f1d5a2825f3b72ebab779f694b3e325141ce6227
SHA512 aa9ba7fe802c4948c2fad6bde21fff4ff11be42dfa30120b31ef15934a4fd634e90cb4d4d1405905189df3dd6fb117876e44fb194d868b38d393e3be099ef0c0
SSDEEP 6144:GA2P27yTAnKGw0hjFhSR/W1nyAJ9v0pMtRCpYQ:GATuTAnKGwUAWVycQqgj
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
4004	4836	WerFault.exe	99
2372	1220	WerFault.exe	83

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	a0dc8e73fe2cb35738d1e98d551c5520N.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
1220	a0dc8e73fe2cb35738d1e98d551c5520N.exe
1220	a0dc8e73fe2cb35738d1e98d551c5520N.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3516	Explorer.EXE
Token: SeCreatePagefilePrivilege	3516	Explorer.EXE
Token: SeShutdownPrivilege	3516	Explorer.EXE
Token: SeCreatePagefilePrivilege	3516	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4836	winver.exe
1220	a0dc8e73fe2cb35738d1e98d551c5520N.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3516	Explorer.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1220 wrote to memory of 4836	1220	a0dc8e73fe2cb35738d1e98d551c5520N.exe	99
PID 1220 wrote to memory of 4836	1220	a0dc8e73fe2cb35738d1e98d551c5520N.exe	99
PID 1220 wrote to memory of 4836	1220	a0dc8e73fe2cb35738d1e98d551c5520N.exe	99
PID 1220 wrote to memory of 4836	1220	a0dc8e73fe2cb35738d1e98d551c5520N.exe	99
PID 4836 wrote to memory of 3516	4836	winver.exe	56
PID 1220 wrote to memory of 3516	1220	a0dc8e73fe2cb35738d1e98d551c5520N.exe	56
PID 1220 wrote to memory of 2676	1220	a0dc8e73fe2cb35738d1e98d551c5520N.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2676

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3516
- C:\Users\Admin\AppData\Local\Temp\a0dc8e73fe2cb35738d1e98d551c5520N.exe
  "C:\Users\Admin\AppData\Local\Temp\a0dc8e73fe2cb35738d1e98d551c5520N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1220
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:4836
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4836 -s 300
      4⤵
      Program crash
      PID:4004
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1220 -s 988
    3⤵
    - Program crash
    PID:2372

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:3604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4836 -ip 4836
1⤵
PID:5000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1220 -ip 1220
1⤵
PID:32

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/1220-1-0x00000000045E0000-0x0000000004C38000-memory.dmp

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memory/1220-2-0x0000000003C90000-0x0000000003C91000-memory.dmp

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memory/1220-6-0x0000000000400000-0x000000000043F000-memory.dmp

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memory/1220-11-0x00000000057F0000-0x00000000061F0000-memory.dmp

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memory/1220-17-0x00000000045E0000-0x0000000004C38000-memory.dmp

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memory/1220-14-0x00000000057F0000-0x00000000061F0000-memory.dmp

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memory/2676-12-0x0000000000C10000-0x0000000000C16000-memory.dmp

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memory/2676-18-0x0000000000C10000-0x0000000000C16000-memory.dmp

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memory/3516-4-0x0000000001170000-0x0000000001176000-memory.dmp

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memory/3516-5-0x0000000001170000-0x0000000001176000-memory.dmp

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memory/3516-10-0x0000000002CC0000-0x0000000002CC6000-memory.dmp

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