77c8961407965a21d8dc9ee29641b4fc1dfe8e9fd45c708648ca718811f6d1a2

Analysis

max time kernel
147s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 23:40

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General

Target

77c8961407965a21d8dc9ee29641b4fc1dfe8e9fd45c708648ca718811f6d1a2.exe
Size

225KB
MD5

a03caef1fad79ea7da470aea559c111d
SHA1

929ceff0e68c785d00f0984bd477d343d4dd8f9c
SHA256

77c8961407965a21d8dc9ee29641b4fc1dfe8e9fd45c708648ca718811f6d1a2
SHA512

2f45bb818bf9761c164591c52c804f2a7f3ddbbf5f4069cd0b44d2e6c20c9b1a57b6acbd59a67a4fe5e5d6c6bc721f851ffff53bc93696e3b84ccc80b11d0e05
SSDEEP

6144:bA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:bATuTAnKGwUAW3ycQqgf

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
1512	3388	WerFault.exe	95
1580	4456	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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	77c8961407965a21d8dc9ee29641b4fc1dfe8e9fd45c708648ca718811f6d1a2.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 use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3388	winver.exe
4456	77c8961407965a21d8dc9ee29641b4fc1dfe8e9fd45c708648ca718811f6d1a2.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4456 wrote to memory of 3388	4456	77c8961407965a21d8dc9ee29641b4fc1dfe8e9fd45c708648ca718811f6d1a2.exe	95
PID 4456 wrote to memory of 3388	4456	77c8961407965a21d8dc9ee29641b4fc1dfe8e9fd45c708648ca718811f6d1a2.exe	95
PID 4456 wrote to memory of 3388	4456	77c8961407965a21d8dc9ee29641b4fc1dfe8e9fd45c708648ca718811f6d1a2.exe	95
PID 4456 wrote to memory of 3388	4456	77c8961407965a21d8dc9ee29641b4fc1dfe8e9fd45c708648ca718811f6d1a2.exe	95
PID 3388 wrote to memory of 3436	3388	winver.exe	56
PID 4456 wrote to memory of 3436	4456	77c8961407965a21d8dc9ee29641b4fc1dfe8e9fd45c708648ca718811f6d1a2.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3436
- C:\Users\Admin\AppData\Local\Temp\77c8961407965a21d8dc9ee29641b4fc1dfe8e9fd45c708648ca718811f6d1a2.exe
  "C:\Users\Admin\AppData\Local\Temp\77c8961407965a21d8dc9ee29641b4fc1dfe8e9fd45c708648ca718811f6d1a2.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4456
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:3388
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3388 -s 300
      4⤵
      Program crash
      PID:1512
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4456 -s 904
    3⤵
    - Program crash
    PID:1580

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:2356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3388 -ip 3388
1⤵
PID:3744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4456 -ip 4456
1⤵
PID:3040

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

Replay Monitor

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Downloads

memory/3436-7-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/3436-8-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/3436-12-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/4456-1-0x0000000004720000-0x0000000004D78000-memory.dmp

Filesize
6.3MB

Download
memory/4456-2-0x0000000003E40000-0x0000000003E41000-memory.dmp

Filesize
4KB

Download
memory/4456-3-0x0000000004720000-0x0000000004D78000-memory.dmp

Filesize
6.3MB

Download
memory/4456-4-0x0000000003E40000-0x0000000003E41000-memory.dmp

Filesize
4KB

Download
memory/4456-5-0x0000000003E40000-0x0000000003E41000-memory.dmp

Filesize
4KB

Download
memory/4456-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4456-15-0x0000000004720000-0x0000000004D78000-memory.dmp

Filesize
6.3MB

Download