adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73

General

Target

adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
Size

73KB
MD5

ca480863319b300242c1c827d35ea867
SHA1

f93f33e7d7c41be4c3002b227ae8ca9d5b9231b4
SHA256

adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73
SHA512

650973db413d31c8d2f83d53f06585cf47497bfc083f54b781ed6d9bd848ff10062825d15bd3940b196c2f4768d56fd68e6116fb5352a76259ad610a2414bd76
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOUh:RshfSWHHNvoLqNwDDGw02eQmh0HjWOUh

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2184	rundll32.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\" %*"	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
File created	C:\Windows\SysWOW64\¢«.exe	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
File created	C:\Windows\system\rundll32.exe	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1726052873"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1726052873"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2184	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
2184	rundll32.exe
2184	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 2184	2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe	86
PID 2268 wrote to memory of 2184	2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe	86
PID 2268 wrote to memory of 2184	2268	adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe	86

C:\Users\Admin\AppData\Local\Temp\adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe
"C:\Users\Admin\AppData\Local\Temp\adcb65aece5ad240cb5ea33e77e2304689cd874ee4b7e86b4b05970f4835fc73.exe"
1⤵
- 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:2268
- 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:2184

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
82KB

MD5
3f0088eb10e4c2fdea279cf251f820ff

SHA1
497cb46f9cb626ffdb8e9dab2f9a0b002adb434c

SHA256
495c2f25f764e891333728259e045105bfdf3acc0f23536965bbddc9f0891019

SHA512
73441dd752ce33958af6f870ddeff89a8d731a628f7cd12b8fdc093e4324c538f775ca1d37a7d33b08bfd3140a21bd00289935b37430a9715633041761c74de3

Download Submit
C:\Windows\System\rundll32.exe

Filesize
75KB

MD5
1d64dc61798d0edf641cb00ff061cd58

SHA1
f72b98f2ff375641bf7fe72ba111fe3de31828d7

SHA256
9874605bd2f647aaf4fbb8bbc74038008c85b826ca330edc1276cd16ea25c347

SHA512
149bd4cb72e847dd031d419bf14d5835474341ba8801f6a8d39d0656a0d807115453d558ca187173f6e53e0a1b581ac1c17a64a35f85f5fe64d65d0f2080ebaa

Download Submit
memory/2184-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2268-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2268-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads