b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97

General

Target

b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe
Size

225KB
MD5

576b598102a8a90a7c4af096cef75910
SHA1

315042a1016a3702fed3b681f4f90eacb3e39d85
SHA256

b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97
SHA512

5a91bfeec4495cda3e5c9ca039f782f744d4949b7599bea165d46fc70d9e0a9c60098fa5a1de5d4b2878cccfd3dd2f00901d8a22d4704d73bb6d56b6c583e103
SSDEEP

6144:TA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:TATuTAnKGwUAW3ycQqgf

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
1596	4800	WerFault.exe	93
4912	3296	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	b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.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
3296	b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe
3296	b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
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
4800	winver.exe
3296	b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3296 wrote to memory of 4800	3296	b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe	93
PID 3296 wrote to memory of 4800	3296	b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe	93
PID 3296 wrote to memory of 4800	3296	b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe	93
PID 3296 wrote to memory of 4800	3296	b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe	93
PID 4800 wrote to memory of 3380	4800	winver.exe	55
PID 3296 wrote to memory of 3380	3296	b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe	55
PID 3296 wrote to memory of 2504	3296	b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2504

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3380
- C:\Users\Admin\AppData\Local\Temp\b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe
  "C:\Users\Admin\AppData\Local\Temp\b4e26c2bb5c44b64d5a3a9b142189e1aaded861e6ec1a4f88432a53213619b97N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3296
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:4800
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 300
      4⤵
      Program crash
      PID:1596
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3296 -s 1020
    3⤵
    - Program crash
    PID:4912

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:1424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 4800 -ip 4800
1⤵
PID:2084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3296 -ip 3296
1⤵
PID:4856

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/2504-13-0x0000000000E20000-0x0000000000E26000-memory.dmp

Filesize
24KB

Download
memory/2504-20-0x0000000000E20000-0x0000000000E26000-memory.dmp

Filesize
24KB

Download
memory/3296-1-0x0000000004660000-0x0000000004CB8000-memory.dmp

Filesize
6.3MB

Download
memory/3296-2-0x00000000044E0000-0x00000000044E1000-memory.dmp

Filesize
4KB

Download
memory/3296-3-0x0000000004660000-0x0000000004CB8000-memory.dmp

Filesize
6.3MB

Download
memory/3296-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3296-10-0x0000000005A70000-0x0000000006470000-memory.dmp

Filesize
10.0MB

Download
memory/3296-15-0x0000000005A70000-0x0000000006470000-memory.dmp

Filesize
10.0MB

Download
memory/3296-19-0x0000000004660000-0x0000000004CB8000-memory.dmp

Filesize
6.3MB

Download
memory/3380-5-0x00000000012D0000-0x00000000012D6000-memory.dmp

Filesize
24KB

Download
memory/3380-6-0x00000000012D0000-0x00000000012D6000-memory.dmp

Filesize
24KB

Download
memory/3380-11-0x0000000001310000-0x0000000001316000-memory.dmp

Filesize
24KB

Download

Analysis

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