b0f3b5a71e20a73e570b2e18cb3ce44cc248b1f78e70e5594384a39947e4a2a1

General

Target

b0f3b5a71e20a73e570b2e18cb3ce44cc248b1f78e70e5594384a39947e4a2a1N.exe
Size

610KB
MD5

cb4ac87b1e7ea7bc98b8c44188ca0080
SHA1

f8300f61aea54455e8d73a5bbb1699031f84886a
SHA256

b0f3b5a71e20a73e570b2e18cb3ce44cc248b1f78e70e5594384a39947e4a2a1
SHA512

deeaa9cef23adf69b04f21ee0957700480d22cb9680407cbafc6d0e43d0400d052152850cad1a87a2a8d865d8e317d4a949f49a65f7e9de4d750b37b93709ab1
SSDEEP

12288:iATuTAnKGwUAW3ycQqgYo3CyWoKEY3ZQi7gfqOuuh+c:cT+KjUdQqboyyWoK1NGqzuhb

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
2312	1236	WerFault.exe	103
4124	4308	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	b0f3b5a71e20a73e570b2e18cb3ce44cc248b1f78e70e5594384a39947e4a2a1N.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
4308	b0f3b5a71e20a73e570b2e18cb3ce44cc248b1f78e70e5594384a39947e4a2a1N.exe
4308	b0f3b5a71e20a73e570b2e18cb3ce44cc248b1f78e70e5594384a39947e4a2a1N.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE
Token: SeShutdownPrivilege	3440	Explorer.EXE
Token: SeCreatePagefilePrivilege	3440	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1236	winver.exe
4308	b0f3b5a71e20a73e570b2e18cb3ce44cc248b1f78e70e5594384a39947e4a2a1N.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4308 wrote to memory of 1236	4308	b0f3b5a71e20a73e570b2e18cb3ce44cc248b1f78e70e5594384a39947e4a2a1N.exe	103
PID 4308 wrote to memory of 1236	4308	b0f3b5a71e20a73e570b2e18cb3ce44cc248b1f78e70e5594384a39947e4a2a1N.exe	103
PID 4308 wrote to memory of 1236	4308	b0f3b5a71e20a73e570b2e18cb3ce44cc248b1f78e70e5594384a39947e4a2a1N.exe	103
PID 4308 wrote to memory of 1236	4308	b0f3b5a71e20a73e570b2e18cb3ce44cc248b1f78e70e5594384a39947e4a2a1N.exe	103
PID 1236 wrote to memory of 3440	1236	winver.exe	56
PID 4308 wrote to memory of 3440	4308	b0f3b5a71e20a73e570b2e18cb3ce44cc248b1f78e70e5594384a39947e4a2a1N.exe	56
PID 4308 wrote to memory of 2628	4308	b0f3b5a71e20a73e570b2e18cb3ce44cc248b1f78e70e5594384a39947e4a2a1N.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2628

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3440
- C:\Users\Admin\AppData\Local\Temp\b0f3b5a71e20a73e570b2e18cb3ce44cc248b1f78e70e5594384a39947e4a2a1N.exe
  "C:\Users\Admin\AppData\Local\Temp\b0f3b5a71e20a73e570b2e18cb3ce44cc248b1f78e70e5594384a39947e4a2a1N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4308
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:1236
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1236 -s 300
      4⤵
      Program crash
      PID:2312
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4308 -s 132
    3⤵
    - Program crash
    PID:4124

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:1996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1236 -ip 1236
1⤵
PID:656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4308 -ip 4308
1⤵
PID:3136

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/2628-13-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/2628-19-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/3440-5-0x00000000011B0000-0x00000000011B6000-memory.dmp

Filesize
24KB

Download
memory/3440-6-0x00000000011B0000-0x00000000011B6000-memory.dmp

Filesize
24KB

Download
memory/3440-11-0x00000000011C0000-0x00000000011C6000-memory.dmp

Filesize
24KB

Download
memory/4308-1-0x0000000004630000-0x0000000004C88000-memory.dmp

Filesize
6.3MB

Download
memory/4308-2-0x0000000003D90000-0x0000000003D91000-memory.dmp

Filesize
4KB

Download
memory/4308-3-0x0000000004630000-0x0000000004C88000-memory.dmp

Filesize
6.3MB

Download
memory/4308-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4308-12-0x0000000005A80000-0x0000000006480000-memory.dmp

Filesize
10.0MB

Download
memory/4308-14-0x0000000005A80000-0x0000000006480000-memory.dmp

Filesize
10.0MB

Download
memory/4308-18-0x0000000004630000-0x0000000004C88000-memory.dmp

Filesize
6.3MB

Download

Analysis

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