4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0

General

Target
jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
Size 64KB
Sample260924-md8cpsbc38
SHA256 4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0
MD5 4f632b669e411674534906972dad9d90
SHA1 320a3950705514be8ed87b0d7d4856beff4cecb3
SHA512 dab5f4cd208c141f84743bdd7e8bcabcc790f3b37a875626ac6863365181a34b13e661b851d3df26f04d907d59abbf291037faa7c1a6765abcfef51ae2962df9
SSDEEP 768:aenNR8Sn+ld5GFJlVvRsEfnYS2x8a0TE7yYLhUIOskLV3jtv3q+xDnsK3kBBk:aMPZJpfg0w7yLwOOKoO
TLSH
T1EE53375682CBC9B5FCD43C301267D17BB172BD8326F5A9AB9603FCC8187A115B235E86
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

defense_evasion discovery execution

Malware Config

Signatures

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
6000	rundll32.exe

Disables service(s) 3 TTPs
defense_evasion execution

Windows Service
T1543.003

Service Stop
T1489

Service Execution
T1569.002

Loads dropped DLL 1 IoCs

pid	Process
6000	rundll32.exe

Stops running service(s) 4 TTPs
defense_evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

Drops file in System32 directory 10 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\msimg32.dll	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
File created	C:\Windows\SysWOW64\yuksuser.dll	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
File created	C:\Windows\SysWOW64\ksuser.dll	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
File created	C:\Windows\SysWOW64\midimap.dll	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
File created	C:\Windows\SysWOW64\yumsimg32.dll	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
File created	C:\Windows\SysWOW64\dllcache\msimg32.dll	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
File created	C:\Windows\SysWOW64\sysapp9.dll	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
File created	C:\Windows\SysWOW64\yumidimap.dll	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe

Launches sc.exe 2 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
4764	sc.exe
5032	sc.exe

System Location Discovery: System Language Discovery 1 TTPs 6 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	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1228	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
1228	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
1228	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
1228	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
1228	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
1228	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1228	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1228 wrote to memory of 5080	1228	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe	89
PID 1228 wrote to memory of 5032	1228	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe	90
PID 1228 wrote to memory of 4764	1228	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe	91
PID 1228 wrote to memory of 6000	1228	jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe	95
PID 5080 wrote to memory of 4092	5080	net.exe	96

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1228
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5080
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4092
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5032
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4764
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1790245417.dat, ServerMain c:\users\admin\appdata\local\temp\jaffacakes118_4767ef77cb772372787107fca711a5560489054ca5fda7f3dee3a2335245baa0.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:6000

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

System Services

2

T1569

Service Execution

2

T1569.002

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Indicator Removal

1

T1070

File Deletion

1

T1070.004

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

2

T1489

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Downloads

1790245417.dat

Path C:\Users\Admin\AppData\Local\Temp\1790245417.dat
Size 34KB
SHA256 a916534a31e212e31e42ac67d9a98db640e94ea5e0b5cf616336ec0aba4cfae0
MD5 38e27da4a630c64f832fed0c5039f15d
SHA1 caee6670c12124f62a3fd31773f6bba96199ea08
SHA512 e068035252a31bd27bdc63ca5c3099d208ba90a2a47c6a2e3ff7ddf6cdff3e9badcdc3afaf2cac2b2024b778e28ce36e051dc52290038f93b8e796b1a836bf3b
SSDEEP 768:qqCM7tWeKCJfaEtOexFjAOll7wzxOSO1m2OMjRG75:qqR7OotOe3MOf7wzxoRR0
TLSH
T13CF27C56BA4785B3E1E342307A912BB68BF828341E0755E9DB73CB8B1D701C7DA79207
MD5 SHA1 SHA512 SSDEEP TLSH

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