f436e20e907fa0deeda696ef7143aa5b3064b2696e63afc90e0de4b62c30e58e

General

Target

f436e20e907fa0deeda696ef7143aa5b3064b2696e63afc90e0de4b62c30e58eN.exe
Size

237KB
MD5

81e2b00fdc9983a8d568e1c99336e050
SHA1

d20650d412eee5a89459c6e0117304163edfc834
SHA256

f436e20e907fa0deeda696ef7143aa5b3064b2696e63afc90e0de4b62c30e58e
SHA512

a18af13bdeb544ea02753a805cb7552b5c0c10e003c96d45ff38480ef2ee27b4a4d89969fd331a9d96cdb266c9b3cbf9a54bb99f591c8df329bccfea5ab642c6
SSDEEP

6144:NA2P27yTAnKGw0hjFhSR/W1nyAJ9v0pMtRCpYw:NATuTAnKGwUAWVycQqgr

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
2740	3024	WerFault.exe	103
2628	3204	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	f436e20e907fa0deeda696ef7143aa5b3064b2696e63afc90e0de4b62c30e58eN.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
3204	f436e20e907fa0deeda696ef7143aa5b3064b2696e63afc90e0de4b62c30e58eN.exe
3204	f436e20e907fa0deeda696ef7143aa5b3064b2696e63afc90e0de4b62c30e58eN.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3592	Explorer.EXE
Token: SeCreatePagefilePrivilege	3592	Explorer.EXE
Token: SeShutdownPrivilege	3592	Explorer.EXE
Token: SeCreatePagefilePrivilege	3592	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3024	winver.exe
3204	f436e20e907fa0deeda696ef7143aa5b3064b2696e63afc90e0de4b62c30e58eN.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3204 wrote to memory of 3024	3204	f436e20e907fa0deeda696ef7143aa5b3064b2696e63afc90e0de4b62c30e58eN.exe	103
PID 3204 wrote to memory of 3024	3204	f436e20e907fa0deeda696ef7143aa5b3064b2696e63afc90e0de4b62c30e58eN.exe	103
PID 3204 wrote to memory of 3024	3204	f436e20e907fa0deeda696ef7143aa5b3064b2696e63afc90e0de4b62c30e58eN.exe	103
PID 3204 wrote to memory of 3024	3204	f436e20e907fa0deeda696ef7143aa5b3064b2696e63afc90e0de4b62c30e58eN.exe	103
PID 3024 wrote to memory of 3592	3024	winver.exe	56
PID 3204 wrote to memory of 3592	3204	f436e20e907fa0deeda696ef7143aa5b3064b2696e63afc90e0de4b62c30e58eN.exe	56
PID 3204 wrote to memory of 2500	3204	f436e20e907fa0deeda696ef7143aa5b3064b2696e63afc90e0de4b62c30e58eN.exe	42

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2500

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3592
- C:\Users\Admin\AppData\Local\Temp\f436e20e907fa0deeda696ef7143aa5b3064b2696e63afc90e0de4b62c30e58eN.exe
  "C:\Users\Admin\AppData\Local\Temp\f436e20e907fa0deeda696ef7143aa5b3064b2696e63afc90e0de4b62c30e58eN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3204
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:3024
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3024 -s 300
      4⤵
      Program crash
      PID:2740
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3204 -s 888
    3⤵
    - Program crash
    PID:2628

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:2044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 3024 -ip 3024
1⤵
PID:4160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3204 -ip 3204
1⤵
PID:3692

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/2500-14-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/2500-20-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/3204-3-0x0000000004560000-0x0000000004BB8000-memory.dmp

Filesize
6.3MB

Download
memory/3204-2-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/3204-1-0x0000000004560000-0x0000000004BB8000-memory.dmp

Filesize
6.3MB

Download
memory/3204-7-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3204-11-0x0000000005A70000-0x0000000006470000-memory.dmp

Filesize
10.0MB

Download
memory/3204-15-0x0000000005A70000-0x0000000006470000-memory.dmp

Filesize
10.0MB

Download
memory/3204-19-0x0000000004560000-0x0000000004BB8000-memory.dmp

Filesize
6.3MB

Download
memory/3592-5-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3592-6-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3592-12-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download

Analysis

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