mimikatz | 579fd8a0385482fb4c789561a30b09f25671e86422f40ef5cca2036b28f99648

General

Target

infpub.dll
Size

401KB
MD5

1d724f95c61f1055f0d02c2154bbccd3
SHA1

79116fe99f2b421c52ef64097f0f39b815b20907
SHA256

579fd8a0385482fb4c789561a30b09f25671e86422f40ef5cca2036b28f99648
SHA512

f2d7b018d1516df1c97cfff5507957c75c6d9bf8e2ce52ae0052706f4ec62f13eba6d7be17e6ad2b693fdd58e1fd091c37f17bd2b948cdcd9b95b4ad428c0113
SSDEEP

12288:GtDjvhNTc/cq4RKZZKfArRuSA80m+/6sXRnfPGp:IjTc/cq4RUZaArbInfPGp

Score

10^/10

mimikatz discovery

Malware Config

Signatures

Mimikatz
mimikatz is an open source tool to dump credentials on Windows.
mimikatz
Mimikatz family
mimikatz

mimikatz is an open source tool to dump credentials on Windows 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000023cb9-17.dat	mimikatz

Deletes itself 1 IoCs

pid	Process
4036	rundll32.exe

Executes dropped EXE 1 IoCs

pid	Process
3748	B41D.tmp

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\dispci.exe	rundll32.exe
File opened for modification	C:\Windows\B41D.tmp	rundll32.exe
File created	C:\Windows\cscc.dat	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 7 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3752	schtasks.exe
1764	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4036	rundll32.exe
4036	rundll32.exe
4036	rundll32.exe
4036	rundll32.exe
3748	B41D.tmp
3748	B41D.tmp
3748	B41D.tmp
3748	B41D.tmp
3748	B41D.tmp
3748	B41D.tmp

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4036	rundll32.exe
Token: SeDebugPrivilege	4036	rundll32.exe
Token: SeTcbPrivilege	4036	rundll32.exe
Token: SeDebugPrivilege	3748	B41D.tmp

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1224 wrote to memory of 4036	1224	rundll32.exe	83
PID 1224 wrote to memory of 4036	1224	rundll32.exe	83
PID 1224 wrote to memory of 4036	1224	rundll32.exe	83
PID 4036 wrote to memory of 1984	4036	rundll32.exe	84
PID 4036 wrote to memory of 1984	4036	rundll32.exe	84
PID 4036 wrote to memory of 1984	4036	rundll32.exe	84
PID 1984 wrote to memory of 2124	1984	cmd.exe	86
PID 1984 wrote to memory of 2124	1984	cmd.exe	86
PID 1984 wrote to memory of 2124	1984	cmd.exe	86
PID 4036 wrote to memory of 4900	4036	rundll32.exe	87
PID 4036 wrote to memory of 4900	4036	rundll32.exe	87
PID 4036 wrote to memory of 4900	4036	rundll32.exe	87
PID 4036 wrote to memory of 5024	4036	rundll32.exe	89
PID 4036 wrote to memory of 5024	4036	rundll32.exe	89
PID 4036 wrote to memory of 5024	4036	rundll32.exe	89
PID 4036 wrote to memory of 3748	4036	rundll32.exe	90
PID 4036 wrote to memory of 3748	4036	rundll32.exe	90
PID 4900 wrote to memory of 1764	4900	cmd.exe	93
PID 4900 wrote to memory of 1764	4900	cmd.exe	93
PID 4900 wrote to memory of 1764	4900	cmd.exe	93
PID 5024 wrote to memory of 3752	5024	cmd.exe	94
PID 5024 wrote to memory of 3752	5024	cmd.exe	94
PID 5024 wrote to memory of 3752	5024	cmd.exe	94

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\infpub.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1224
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\infpub.dll,#1
  2⤵
  - Deletes itself
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4036
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Delete /F /TN rhaegal
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1984
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /F /TN rhaegal
      4⤵
      System Location Discovery: System Language Discovery
      PID:2124
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Create /RU SYSTEM /SC ONSTART /TN rhaegal /TR "C:\Windows\system32\cmd.exe /C Start \"\" \"C:\Windows\dispci.exe\" -id 3477950841 && exit"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4900
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /RU SYSTEM /SC ONSTART /TN rhaegal /TR "C:\Windows\system32\cmd.exe /C Start \"\" \"C:\Windows\dispci.exe\" -id 3477950841 && exit"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1764
- - C:\Windows\SysWOW64\cmd.exe
    /c schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 13:38:00
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5024
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Create /SC once /TN drogon /RU SYSTEM /TR "C:\Windows\system32\shutdown.exe /r /t 0 /f" /ST 13:38:00
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:3752
- - C:\Windows\B41D.tmp
    "C:\Windows\B41D.tmp" \\.\pipe\{39FB8AC5-32BC-4D64-ABD2-6BD0035C3293}
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\B41D.tmp

Filesize
60KB

MD5
347ac3b6b791054de3e5720a7144a977

SHA1
413eba3973a15c1a6429d9f170f3e8287f98c21c

SHA256
301b905eb98d8d6bb559c04bbda26628a942b2c4107c07a02e8f753bdcfe347c

SHA512
9a399916bc681964af1e1061bc0a8e2926307642557539ad587ce6f9b5ef93bdf1820fe5d7b5ffe5f0bb38e5b4dc6add213ba04048c0c7c264646375fcd01787

Download Submit
memory/4036-0-0x00000000029C0000-0x0000000002A28000-memory.dmp

Filesize
416KB

Download
memory/4036-8-0x00000000029C0000-0x0000000002A28000-memory.dmp

Filesize
416KB

Download
memory/4036-11-0x00000000029C0000-0x0000000002A28000-memory.dmp

Filesize
416KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads