d8bf2b7e73ffdf282b9cbcdcc762ff615945fa90818d7815c8b34d4b59756449

General

Target

fce74f91a0846a362dd1599f636afee0N.exe
Size

225KB
MD5

fce74f91a0846a362dd1599f636afee0
SHA1

8bd28c0e494247c72876873034fb149a12c5ff46
SHA256

d8bf2b7e73ffdf282b9cbcdcc762ff615945fa90818d7815c8b34d4b59756449
SHA512

7d7c5f34b52dcc1044e97dc5035d0bd83a93fe28b33d685c6eee58bb95bd4527265ec1761940e9cd5f09601cb32121c82a5d2702b71901dd040829a9af2b0337
SSDEEP

6144:5A2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:5ATuTAnKGwUAW3ycQqgf

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
112	2684	WerFault.exe	102
2712	688	WerFault.exe	82

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	fce74f91a0846a362dd1599f636afee0N.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

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
688	fce74f91a0846a362dd1599f636afee0N.exe
688	fce74f91a0846a362dd1599f636afee0N.exe

Suspicious use of AdjustPrivilegeToken 20 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2684	winver.exe
688	fce74f91a0846a362dd1599f636afee0N.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3380	Explorer.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 688 wrote to memory of 2684	688	fce74f91a0846a362dd1599f636afee0N.exe	102
PID 688 wrote to memory of 2684	688	fce74f91a0846a362dd1599f636afee0N.exe	102
PID 688 wrote to memory of 2684	688	fce74f91a0846a362dd1599f636afee0N.exe	102
PID 688 wrote to memory of 2684	688	fce74f91a0846a362dd1599f636afee0N.exe	102
PID 2684 wrote to memory of 3380	2684	winver.exe	55
PID 688 wrote to memory of 3380	688	fce74f91a0846a362dd1599f636afee0N.exe	55
PID 688 wrote to memory of 3024	688	fce74f91a0846a362dd1599f636afee0N.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:3024

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3380
- C:\Users\Admin\AppData\Local\Temp\fce74f91a0846a362dd1599f636afee0N.exe
  "C:\Users\Admin\AppData\Local\Temp\fce74f91a0846a362dd1599f636afee0N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:688
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:2684
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2684 -s 316
      4⤵
      Program crash
      PID:112
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 688 -s 984
    3⤵
    - Program crash
    PID:2712

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:2112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2684 -ip 2684
1⤵
PID:5092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 688 -ip 688
1⤵
PID:2716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/688-1-0x00000000046C0000-0x0000000004D18000-memory.dmp

Filesize
6.3MB

Download
memory/688-2-0x0000000003DC0000-0x0000000003DC1000-memory.dmp

Filesize
4KB

Download
memory/688-3-0x00000000046C0000-0x0000000004D18000-memory.dmp

Filesize
6.3MB

Download
memory/688-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/688-11-0x00000000057D0000-0x00000000061D0000-memory.dmp

Filesize
10.0MB

Download
memory/688-16-0x00000000057D0000-0x00000000061D0000-memory.dmp

Filesize
10.0MB

Download
memory/688-19-0x00000000046C0000-0x0000000004D18000-memory.dmp

Filesize
6.3MB

Download
memory/3024-14-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3024-20-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3380-5-0x0000000002480000-0x0000000002486000-memory.dmp

Filesize
24KB

Download
memory/3380-6-0x0000000002480000-0x0000000002486000-memory.dmp

Filesize
24KB

Download
memory/3380-12-0x0000000002490000-0x0000000002496000-memory.dmp

Filesize
24KB

Download

Analysis

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