2377124bb1b89cae7b8d0c7efa151b7dad882396a3ab71735510feb4129d3f43

General

Target
jaffacakes118_2377124bb1b89cae7b8d0c7efa151b7dad882396a3ab71735510feb4129d3f43.exe
Size 180KB
Sample260924-mkf7ssbd53
SHA256 2377124bb1b89cae7b8d0c7efa151b7dad882396a3ab71735510feb4129d3f43
MD5 8ec3f583530afc3f7ef74e7c5dd33001
SHA1 a615119f2ca09dcd8574e9cfd4fffd48a5d62620
SHA512 f3b2ca596e7f7358b6c307ef00912d52830f90b2044c67a12e8f2aa198e064fe70af37efec0506af1a6b36365d0a8cdf3636c7e0c7e0c30b56978d8622d05461
SSDEEP 3072:ZcCJvY836Nfpsp3z9l8eswt6onBzaVwapmysNPGwzV70qnDrN6:ZcCJAeXp3rrJ6azaVwapmewJlw
TLSH
T11A048D13F6D180B2D0648ABC5C5E9654963FBE302EB42457BBA90F8E9D792C18D6C3C7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

defense_evasion discovery persistence

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-895009113-1202185046-1686627690-1000\Control Panel\International\Geo\Nation	jaffacakes118_2377124bb1b89cae7b8d0c7efa151b7dad882396a3ab71735510feb4129d3f43.exe

Executes dropped EXE 1 IoCs

pid	Process
3204	Intnet.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunServices\Intnet = "C:\\Windows\\Intnet.exe"	jaffacakes118_2377124bb1b89cae7b8d0c7efa151b7dad882396a3ab71735510feb4129d3f43.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunServices\Intnet = "C:\\Windows\\Intnet.exe"	Intnet.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Intnet.exe	jaffacakes118_2377124bb1b89cae7b8d0c7efa151b7dad882396a3ab71735510feb4129d3f43.exe
File created	C:\Windows\Intnet.exe	Intnet.exe
File created	C:\Windows\Intnet.exe	jaffacakes118_2377124bb1b89cae7b8d0c7efa151b7dad882396a3ab71735510feb4129d3f43.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1836	3204	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 3 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_2377124bb1b89cae7b8d0c7efa151b7dad882396a3ab71735510feb4129d3f43.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Intnet.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4136	jaffacakes118_2377124bb1b89cae7b8d0c7efa151b7dad882396a3ab71735510feb4129d3f43.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4136 wrote to memory of 3204	4136	jaffacakes118_2377124bb1b89cae7b8d0c7efa151b7dad882396a3ab71735510feb4129d3f43.exe	87
PID 4136 wrote to memory of 1696	4136	jaffacakes118_2377124bb1b89cae7b8d0c7efa151b7dad882396a3ab71735510feb4129d3f43.exe	94

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_2377124bb1b89cae7b8d0c7efa151b7dad882396a3ab71735510feb4129d3f43.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_2377124bb1b89cae7b8d0c7efa151b7dad882396a3ab71735510feb4129d3f43.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4136
- C:\Windows\Intnet.exe
  C:\Windows\Intnet.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:3204
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3204 -s 436
    3⤵
    - Program crash
    PID:1836
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\JAFFAC~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3204 -ip 3204
1⤵
PID:4104

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Indicator Removal

1

T1070

File Deletion

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Intnet.exe

Path C:\Windows\Intnet.exe
Size 180KB
SHA256 2377124bb1b89cae7b8d0c7efa151b7dad882396a3ab71735510feb4129d3f43
MD5 8ec3f583530afc3f7ef74e7c5dd33001
SHA1 a615119f2ca09dcd8574e9cfd4fffd48a5d62620
SHA512 f3b2ca596e7f7358b6c307ef00912d52830f90b2044c67a12e8f2aa198e064fe70af37efec0506af1a6b36365d0a8cdf3636c7e0c7e0c30b56978d8622d05461
SSDEEP 3072:ZcCJvY836Nfpsp3z9l8eswt6onBzaVwapmysNPGwzV70qnDrN6:ZcCJAeXp3rrJ6azaVwapmewJlw
TLSH
T11A048D13F6D180B2D0648ABC5C5E9654963FBE302EB42457BBA90F8E9D792C18D6C3C7
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3204-5-0x0000000000400000-0x0000000000432000-memory.dmp

Download

memory/4136-4-0x0000000000400000-0x0000000000432000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads