a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e

General

Target

a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
Size

78KB
MD5

b7318612bf7baaac67ab870665fefa0d
SHA1

14ae55beca1029bec01f88ee037a2095c6c0f451
SHA256

a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e
SHA512

607d7e587f514b27b71493df26d0916389fb539dba99f77aa6e3262a2374f640b4688438cbca6cb8417ea70f56ca87e5e395398e35a4b4098e7ca4fea1266a84
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOnn:GhfxHNIreQm+HiEn

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
828	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
File created	C:\Windows\SysWOW64\¢«.exe	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\rundll32.exe	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
File opened for modification	C:\Windows\system\rundll32.exe	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe

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	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1726145902"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1726145902"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
828	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
828	rundll32.exe
828	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 828	2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe	30
PID 2156 wrote to memory of 828	2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe	30
PID 2156 wrote to memory of 828	2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe	30
PID 2156 wrote to memory of 828	2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe	30
PID 2156 wrote to memory of 828	2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe	30
PID 2156 wrote to memory of 828	2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe	30
PID 2156 wrote to memory of 828	2156	a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe	30

C:\Users\Admin\AppData\Local\Temp\a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe
"C:\Users\Admin\AppData\Local\Temp\a63a260c0835f9922cb6913205c8e7574af2404451487763e9b083edc6ed009e.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Windows\system\rundll32.exe
  C:\Windows\system\rundll32.exe
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

1

T1112

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\SysWOW64\notepad¢¬.exe

Filesize
75KB

MD5
bf941067466c630d02012befc6956685

SHA1
1a426f6924a2bc08a85dc97a2058f872d9557ce5

SHA256
345dbfec1a8242855daba5b8920dd3361d5602d482b268012e8f7ba10b0727ce

SHA512
cacf60d1a934c87221008e8f9f98843335820c454642cecfe6b12d3a2bee94df277aaf319ce770d1353bf4373bd1bfef21017aebeee54a21e65998c8a2ac6e87

Download Submit
\Windows\system\rundll32.exe

Filesize
76KB

MD5
62d74e1f31d1ee7858ebaa332c91a3e9

SHA1
0a0c19ba73a3344e0931d6310db0517dab5d3abd

SHA256
c6079825fd04d79de23f9ed8cfac6665302e2ca0d2257c1bef441d5333d1a2cc

SHA512
acb4f9bfd515eefbc8e5739d31d4cbe529de8147efff2362e927bea879a0026109209f659463cda1ce224d6f7362b404be367f1b750637106393785ab37b1dd2

Download Submit
memory/828-18-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/828-22-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2156-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2156-11-0x0000000000270000-0x0000000000286000-memory.dmp

Filesize
88KB

Download
memory/2156-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2156-21-0x0000000000270000-0x0000000000286000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads