bf6b758550b1ee2f0dbbe8becd33c65bb1ea8e6c13cf7ef36e9c3212790bcd2b

General

Target

bf6b758550b1ee2f0dbbe8becd33c65bb1ea8e6c13cf7ef36e9c3212790bcd2bN.exe
Size

225KB
MD5

06be4ab1c2d73a3ac77ca04b21533230
SHA1

4c34c9eaf766b45c622dd582b6582688023d34bd
SHA256

bf6b758550b1ee2f0dbbe8becd33c65bb1ea8e6c13cf7ef36e9c3212790bcd2b
SHA512

90b9018f2106cb6dcf58e6627e25e7cea65deaf4a58628c47429b9b068f9d2db6f83547a74d72bf4ed5326c7e60baca17a0709340afdd1187db8c61162b85f63
SSDEEP

6144:8A2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:8ATuTAnKGwUAW3ycQqgf

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
776	4992	WerFault.exe	99
3556	4492	WerFault.exe	84

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	bf6b758550b1ee2f0dbbe8becd33c65bb1ea8e6c13cf7ef36e9c3212790bcd2bN.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-1-5-21-3227495264-2217614367-4027411560-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3520	Explorer.EXE
Token: SeCreatePagefilePrivilege	3520	Explorer.EXE
Token: SeShutdownPrivilege	3520	Explorer.EXE
Token: SeCreatePagefilePrivilege	3520	Explorer.EXE
Token: SeShutdownPrivilege	3520	Explorer.EXE
Token: SeCreatePagefilePrivilege	3520	Explorer.EXE
Token: SeShutdownPrivilege	3520	Explorer.EXE
Token: SeCreatePagefilePrivilege	3520	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4992	winver.exe
4492	bf6b758550b1ee2f0dbbe8becd33c65bb1ea8e6c13cf7ef36e9c3212790bcd2bN.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3520	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4492 wrote to memory of 4992	4492	bf6b758550b1ee2f0dbbe8becd33c65bb1ea8e6c13cf7ef36e9c3212790bcd2bN.exe	99
PID 4492 wrote to memory of 4992	4492	bf6b758550b1ee2f0dbbe8becd33c65bb1ea8e6c13cf7ef36e9c3212790bcd2bN.exe	99
PID 4492 wrote to memory of 4992	4492	bf6b758550b1ee2f0dbbe8becd33c65bb1ea8e6c13cf7ef36e9c3212790bcd2bN.exe	99
PID 4492 wrote to memory of 4992	4492	bf6b758550b1ee2f0dbbe8becd33c65bb1ea8e6c13cf7ef36e9c3212790bcd2bN.exe	99
PID 4992 wrote to memory of 3520	4992	winver.exe	56
PID 4492 wrote to memory of 3520	4492	bf6b758550b1ee2f0dbbe8becd33c65bb1ea8e6c13cf7ef36e9c3212790bcd2bN.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3520
- C:\Users\Admin\AppData\Local\Temp\bf6b758550b1ee2f0dbbe8becd33c65bb1ea8e6c13cf7ef36e9c3212790bcd2bN.exe
  "C:\Users\Admin\AppData\Local\Temp\bf6b758550b1ee2f0dbbe8becd33c65bb1ea8e6c13cf7ef36e9c3212790bcd2bN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4492
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:4992
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4992 -s 300
      4⤵
      Program crash
      PID:776
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 780
    3⤵
    - Program crash
    PID:3556

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:1372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4992 -ip 4992
1⤵
PID:5004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4492 -ip 4492
1⤵
PID:4388

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/3520-7-0x0000000002470000-0x0000000002476000-memory.dmp

Filesize
24KB

Download
memory/3520-8-0x0000000002470000-0x0000000002476000-memory.dmp

Filesize
24KB

Download
memory/3520-12-0x00000000024E0000-0x00000000024E6000-memory.dmp

Filesize
24KB

Download
memory/4492-1-0x0000000004590000-0x0000000004BE8000-memory.dmp

Filesize
6.3MB

Download
memory/4492-2-0x0000000002590000-0x0000000002591000-memory.dmp

Filesize
4KB

Download
memory/4492-3-0x0000000004590000-0x0000000004BE8000-memory.dmp

Filesize
6.3MB

Download
memory/4492-4-0x0000000002590000-0x0000000002591000-memory.dmp

Filesize
4KB

Download
memory/4492-5-0x0000000002590000-0x0000000002591000-memory.dmp

Filesize
4KB

Download
memory/4492-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4492-15-0x0000000004590000-0x0000000004BE8000-memory.dmp

Filesize
6.3MB

Download

Analysis

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