b232dbac477bcce07f1552273596188f7abd9f062071e422605034d3d6a527e6

General

Target

b232dbac477bcce07f1552273596188f7abd9f062071e422605034d3d6a527e6N.exe
Size

225KB
MD5

cb6879d9d9106e536ff6e5e22457c8d0
SHA1

784fc67dc3442510e5bbd2ac6bc9a76618b8f56b
SHA256

b232dbac477bcce07f1552273596188f7abd9f062071e422605034d3d6a527e6
SHA512

772d584208c4a6aed442ee2c72bcaf930b3def4e5d2959d98aa400ff176883fd1caf4d4aa03704b2de5ca579fa4a9bc156b6f73efd97993b53462242db5e223f
SSDEEP

6144:gA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:gATuTAnKGwUAW3ycQqgf

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
1352	1944	WerFault.exe	104
2740	1956	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	b232dbac477bcce07f1552273596188f7abd9f062071e422605034d3d6a527e6N.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
1956	b232dbac477bcce07f1552273596188f7abd9f062071e422605034d3d6a527e6N.exe
1956	b232dbac477bcce07f1552273596188f7abd9f062071e422605034d3d6a527e6N.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3528	Explorer.EXE
Token: SeCreatePagefilePrivilege	3528	Explorer.EXE
Token: SeShutdownPrivilege	3528	Explorer.EXE
Token: SeCreatePagefilePrivilege	3528	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1944	winver.exe
1956	b232dbac477bcce07f1552273596188f7abd9f062071e422605034d3d6a527e6N.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 1944	1956	b232dbac477bcce07f1552273596188f7abd9f062071e422605034d3d6a527e6N.exe	104
PID 1956 wrote to memory of 1944	1956	b232dbac477bcce07f1552273596188f7abd9f062071e422605034d3d6a527e6N.exe	104
PID 1956 wrote to memory of 1944	1956	b232dbac477bcce07f1552273596188f7abd9f062071e422605034d3d6a527e6N.exe	104
PID 1956 wrote to memory of 1944	1956	b232dbac477bcce07f1552273596188f7abd9f062071e422605034d3d6a527e6N.exe	104
PID 1944 wrote to memory of 3528	1944	winver.exe	56
PID 1956 wrote to memory of 3528	1956	b232dbac477bcce07f1552273596188f7abd9f062071e422605034d3d6a527e6N.exe	56
PID 1956 wrote to memory of 2640	1956	b232dbac477bcce07f1552273596188f7abd9f062071e422605034d3d6a527e6N.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2640

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3528
- C:\Users\Admin\AppData\Local\Temp\b232dbac477bcce07f1552273596188f7abd9f062071e422605034d3d6a527e6N.exe
  "C:\Users\Admin\AppData\Local\Temp\b232dbac477bcce07f1552273596188f7abd9f062071e422605034d3d6a527e6N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1956
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:1944
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1944 -s 300
      4⤵
      Program crash
      PID:1352
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1956 -s 956
    3⤵
    - Program crash
    PID:2740

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:1968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1944 -ip 1944
1⤵
PID:4184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1956 -ip 1956
1⤵
PID:2308

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/1956-1-0x00000000045B0000-0x0000000004C08000-memory.dmp

Filesize
6.3MB

Download
memory/1956-2-0x00000000044E0000-0x00000000044E1000-memory.dmp

Filesize
4KB

Download
memory/1956-6-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1956-10-0x0000000005AC0000-0x00000000064C0000-memory.dmp

Filesize
10.0MB

Download
memory/1956-15-0x0000000005AC0000-0x00000000064C0000-memory.dmp

Filesize
10.0MB

Download
memory/1956-18-0x00000000045B0000-0x0000000004C08000-memory.dmp

Filesize
6.3MB

Download
memory/2640-13-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/2640-19-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3528-4-0x0000000000D70000-0x0000000000D76000-memory.dmp

Filesize
24KB

Download
memory/3528-5-0x0000000000D70000-0x0000000000D76000-memory.dmp

Filesize
24KB

Download
memory/3528-11-0x0000000000D80000-0x0000000000D86000-memory.dmp

Filesize
24KB

Download

Analysis

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