92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390

General

Target

92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
Size

73KB
MD5

27df39bb2725f643cd6e87d3ae98370e
SHA1

ee993276bec7f61090f0cb330dd8895478aca77c
SHA256

92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390
SHA512

2a7542a2ec552107ba9e44a1fc90005108b58776b79ca7a58f6957d9eedac0ef8bf7c6c6f46a3e97b5c3415bcb8869531f667fbedd192b6782aee49e617c4f2b
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWO:RshfSWHHNvoLqNwDDGw02eQmh0HjWO

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4600	rundll32.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
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	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
File created	C:\Windows\SysWOW64\¢«.exe	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
File created	C:\Windows\system\rundll32.exe	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1697163386"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1697163386"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4600	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
4600	rundll32.exe
4600	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3420 wrote to memory of 4600	3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe	86
PID 3420 wrote to memory of 4600	3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe	86
PID 3420 wrote to memory of 4600	3420	92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe	86

C:\Users\Admin\AppData\Local\Temp\92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe
"C:\Users\Admin\AppData\Local\Temp\92d59eac57f454943d6270e7a5c9f6623d86f6dd32362c49b2770c5ca4978390.exe"
1⤵
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3420
- C:\Windows\system\rundll32.exe
  C:\Windows\system\rundll32.exe
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:4600

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
80KB

MD5
a2eb0152a452997c79158943e82d3e4b

SHA1
a51e415d846de6bcb98446ebdd9d0b3a13a88ae5

SHA256
acddc9a02614195204423c9597bcbbc21bfa6fba769be9e0b7323a6c01bf9ca1

SHA512
3a0c9298ec2bd3a40832d6805685309f4811b73e4aee0d5cf865e726b00a292a3838a9848a8e5d013e3d21d8b56dbeae4341f99e32e4c4881d0d20d43358b2d5

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

Filesize
77KB

MD5
793885234d4e05f5672a1d07b16c5418

SHA1
c67da723331efb2c0b0be654620f75231c675e60

SHA256
113d4db4c29fe9f6bd6105b276bbb0ab74e92bbe465da5305c879905be212b62

SHA512
ff7dc0779954377f1aec5d6a11114da63e9f1c2ecadd3df064e2b08e1c72debef1a58430d436630bb1daeeddc809732135296090dad55771e7c526a07ed1627c

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

Filesize
77KB

MD5
793885234d4e05f5672a1d07b16c5418

SHA1
c67da723331efb2c0b0be654620f75231c675e60

SHA256
113d4db4c29fe9f6bd6105b276bbb0ab74e92bbe465da5305c879905be212b62

SHA512
ff7dc0779954377f1aec5d6a11114da63e9f1c2ecadd3df064e2b08e1c72debef1a58430d436630bb1daeeddc809732135296090dad55771e7c526a07ed1627c

Download Submit
memory/3420-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3420-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4600-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads