cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7

General

Target
jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe
Size 68KB
Sample260925-wtyb4sge33
SHA256 cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7
MD5 a891cecdbf8f0844af31ff3163f38be3
SHA1 0a7cea860784df43b9da06073e700f3af0a3c5d9
SHA512 c5c2b76b7e4faed4eb57dd610010feae1407c7e110557b5721cb8e5e63e04b747543e8aeae93f924178e81c7149ee18bad807215529b0348337c5faf103c953a
SSDEEP 1536:5F9kZGFms9Q/ve0SmNyj3w1Q8IHe0uE89gye:5TmsWXe0df1Qruwye
TLSH
T1AA639D06E1C74493DD60C87841E52F7908A5A5F229B21EFE5FD18FF8342E668D2372DA
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
4616	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
4616	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 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\YUmidimap.dll	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe
File created	C:\Windows\SysWOW64\midimap.dll	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe
File created	C:\Windows\SysWOW64\sysapp21.dll	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe
File created	C:\Windows\SysWOW64\YUksuser.dll	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe
File created	C:\Windows\SysWOW64\ksuser.dll	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe

Launches sc.exe 2 IoCs

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

pid	Process
5884	sc.exe
4908	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4488	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe
4488	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe
4488	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe
4488	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe
4488	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe
4488	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4488	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4488 wrote to memory of 3128	4488	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe	89
PID 4488 wrote to memory of 5884	4488	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe	90
PID 4488 wrote to memory of 4908	4488	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe	91
PID 4488 wrote to memory of 4616	4488	jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe	93
PID 3128 wrote to memory of 3024	3128	net.exe	96

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.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:4488
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3128
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3024
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5884
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4908
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1790360025.dat, ServerMain c:\users\admin\appdata\local\temp\jaffacakes118_cfc017d4b4c077c997595d6d8bb9db27df9177494ea17f474761dbcfd569ebe7.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4616

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

Replay Monitor

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Downloads

1790360025.dat

Path C:\Users\Admin\AppData\Local\Temp\1790360025.dat
Size 36KB
SHA256 36c4118b0d4238b224e91265be2f0e68cbdc8277a73eb4459a71c575b15079ef
MD5 b9e169e6ee55ddc0913f215f36d14842
SHA1 8af46c6df0927777c933ce36f127fc1afc79f3ab
SHA512 f6177e89cab2df0094fc98ef9ec4ea45b7bb24ab1905fce9de74b356ef1f1d3d3739b60d090b155f82ea15fbade61ed5fc8a12cf734e16e37fc509d8aa21c012
SSDEEP 768:RWtf1GkAzsDbNNO+Ba0Z/7MQiSyCLvH/CODbXTR+6zf:O1GkwK3O4aW7MzSzLvKOXTR+6zf
TLSH
T1ECF23B137A17C1A2D1A6813137516BB54FB87C705E06A195FF33B76A0DB11C2DA3AB07
MD5 SHA1 SHA512 SSDEEP TLSH

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