8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d

General

Target

8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
Size

76KB
MD5

6ea5f9a503ee8d481cc0d2a85a315a4c
SHA1

97981ac3f97d88b5534ed2a2ad821abca9766c62
SHA256

8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d
SHA512

fcbec4938a37437b6a3bab7b6dd4f9d19b94b8252abd0d5bff8255472f64970b9c4d11dd65a8cf290113d9ecdebe4371aef65566530232c75ccc05834d0f09e4
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOqY+:GhfxHNIreQm+HiRY+

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2648	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.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	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.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

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
File created	C:\Windows\SysWOW64\¢«.exe	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
File created	C:\Windows\system\rundll32.exe	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.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	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies registry class 15 IoCs

description	ioc	Process
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\exefile\shell\open\command	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1725814956"	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1725814956"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2648	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
2648	rundll32.exe
2648	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 2648	2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe	30
PID 2792 wrote to memory of 2648	2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe	30
PID 2792 wrote to memory of 2648	2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe	30
PID 2792 wrote to memory of 2648	2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe	30
PID 2792 wrote to memory of 2648	2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe	30
PID 2792 wrote to memory of 2648	2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe	30
PID 2792 wrote to memory of 2648	2792	8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe	30

C:\Users\Admin\AppData\Local\Temp\8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.exe
"C:\Users\Admin\AppData\Local\Temp\8b7b79653383122831264451b8b1db1ee7ec0a9a0efbb097a30107b5a236ad7d.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:2792
- 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:2648

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
83KB

MD5
cf7e9feb03252acd4c14bdcc85d95a9a

SHA1
2e7847fef21fab1b829d64a1d7bc360a82c010b6

SHA256
18eed3856462f5630716b3658dd75f968d93c3ab39f6a36334f6250302ac2a18

SHA512
b6c5a81f6ec0d8b33ab61e207aba1a068bf9ce5119598f3c846b5ab1aaf5f722f3700f42851f0ef356b24ddb1d4368466603c2ef8a448eeb0c6997f811a49f44

Download Submit
\Windows\system\rundll32.exe

Filesize
81KB

MD5
256058b5be647119b012f76c212df182

SHA1
8bd67ad3060a39dcf911c17d7f66eda668dd2659

SHA256
cea72dab7379aa5b9b3f6ca82bd2736d2b0cd6e64dcc67fec35e9d16541650ad

SHA512
6bd1f22384c79eb216200ee8cda7581d96a52e4f0dbea2936be1acee3a2a6fbcbd874424abf4a651e47a8dd7ba0e73961945609d008116128b5de75485f16a52

Download Submit
memory/2648-22-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2792-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2792-12-0x00000000004A0000-0x00000000004B6000-memory.dmp

Filesize
88KB

Download
memory/2792-17-0x00000000004A0000-0x00000000004B6000-memory.dmp

Filesize
88KB

Download
memory/2792-21-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2792-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads