4899bbaac82e1357689a1514b3fc3839b744082ea1feab4fca9e75e31cb85725

General

Target

4899bbaac82e1357689a1514b3fc3839b744082ea1feab4fca9e75e31cb85725.exe
Size

237KB
MD5

68c3836df85af9271e7b2b62128bbe58
SHA1

4ddc14e107d14a373531a8de78466ea266825296
SHA256

4899bbaac82e1357689a1514b3fc3839b744082ea1feab4fca9e75e31cb85725
SHA512

17a5110d1b6a87545cdfd5649bb4efbaf9c6c3174b9f4d930070a2e91bb1da962c2d875462f5496c1227b930f7c5869b9ad97b87c8cc10286e84e1b9837216d5
SSDEEP

6144:NA2P27yTAnKGw0hjFhSR/W1nyAJ9v0pMtRCpYA: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
1844	1688	WerFault.exe	104
3636	2252	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	4899bbaac82e1357689a1514b3fc3839b744082ea1feab4fca9e75e31cb85725.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
2252	4899bbaac82e1357689a1514b3fc3839b744082ea1feab4fca9e75e31cb85725.exe
2252	4899bbaac82e1357689a1514b3fc3839b744082ea1feab4fca9e75e31cb85725.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1688	winver.exe
2252	4899bbaac82e1357689a1514b3fc3839b744082ea1feab4fca9e75e31cb85725.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 1688	2252	4899bbaac82e1357689a1514b3fc3839b744082ea1feab4fca9e75e31cb85725.exe	104
PID 2252 wrote to memory of 1688	2252	4899bbaac82e1357689a1514b3fc3839b744082ea1feab4fca9e75e31cb85725.exe	104
PID 2252 wrote to memory of 1688	2252	4899bbaac82e1357689a1514b3fc3839b744082ea1feab4fca9e75e31cb85725.exe	104
PID 2252 wrote to memory of 1688	2252	4899bbaac82e1357689a1514b3fc3839b744082ea1feab4fca9e75e31cb85725.exe	104
PID 1688 wrote to memory of 3432	1688	winver.exe	56
PID 2252 wrote to memory of 3432	2252	4899bbaac82e1357689a1514b3fc3839b744082ea1feab4fca9e75e31cb85725.exe	56
PID 2252 wrote to memory of 2884	2252	4899bbaac82e1357689a1514b3fc3839b744082ea1feab4fca9e75e31cb85725.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2884

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3432
- C:\Users\Admin\AppData\Local\Temp\4899bbaac82e1357689a1514b3fc3839b744082ea1feab4fca9e75e31cb85725.exe
  "C:\Users\Admin\AppData\Local\Temp\4899bbaac82e1357689a1514b3fc3839b744082ea1feab4fca9e75e31cb85725.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2252
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:1688
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1688 -s 300
      4⤵
      Program crash
      PID:1844
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2252 -s 968
    3⤵
    - Program crash
    PID:3636

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:3052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1688 -ip 1688
1⤵
PID:820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 2252 -ip 2252
1⤵
PID:2408

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/2252-8-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2252-2-0x0000000003D80000-0x0000000003D81000-memory.dmp

Filesize
4KB

Download
memory/2252-3-0x0000000003D80000-0x0000000003D81000-memory.dmp

Filesize
4KB

Download
memory/2252-4-0x0000000003D80000-0x0000000003D81000-memory.dmp

Filesize
4KB

Download
memory/2252-1-0x0000000004550000-0x0000000004BA8000-memory.dmp

Filesize
6.3MB

Download
memory/2252-11-0x0000000005A60000-0x0000000006460000-memory.dmp

Filesize
10.0MB

Download
memory/2252-16-0x0000000005A60000-0x0000000006460000-memory.dmp

Filesize
10.0MB

Download
memory/2252-20-0x0000000004550000-0x0000000004BA8000-memory.dmp

Filesize
6.3MB

Download
memory/2884-14-0x0000000000960000-0x0000000000966000-memory.dmp

Filesize
24KB

Download
memory/2884-21-0x0000000000960000-0x0000000000966000-memory.dmp

Filesize
24KB

Download
memory/3432-6-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/3432-7-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/3432-12-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download

Analysis

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