bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c

General

Target

bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
Size

79KB
MD5

8400839cb6371ccc98dd0029407ec8f2
SHA1

82dde165841c284f78bc7648887ca9e4899f97d5
SHA256

bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c
SHA512

71c02918decbf19f327cd540ed9157d8fe0f8f1415541b54a418c8dee6aad8dfcce41f2968d79c7422ba6aed32953aadfa471012f84660468f1f97dfa47d849e
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO3mIbHu:GhfxHNIreQm+HiYmI6

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1560	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	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.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	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
File created	C:\Windows\SysWOW64\¢«.exe	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
File created	C:\Windows\system\rundll32.exe	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717536572"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717536572"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1560	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
1560	rundll32.exe
1560	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1424 wrote to memory of 1560	1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe	84
PID 1424 wrote to memory of 1560	1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe	84
PID 1424 wrote to memory of 1560	1424	bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe	84

C:\Users\Admin\AppData\Local\Temp\bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.exe
"C:\Users\Admin\AppData\Local\Temp\bdf7dca7737fc1ac97a12cb1bdfd1830de7cf0acb428888dc46d04a3e3605a3c.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:1424
- 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:1560

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

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
81KB

MD5
3c0483fcf1b1367b1c1498aa20f70b23

SHA1
8eacc1f9a35231fd2aac9679c517cb9b6160e9b3

SHA256
0f37de854c82bf8f0c0e429fdbf3c84fb5a4a8a05d448d6355c3dfc47f7d92a4

SHA512
a6132e7495c5de0e08348d220ff965c0bae8acf263de2b15b93365b5c5cfd0d196b13552564630ad434543096423ab5a8f33a0edebcd3b4cb55f78cfc44ae968

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

Filesize
80KB

MD5
4d8045fe3acfd9c49f9db46d3bd4004a

SHA1
3b1c476bd7a3b54fc83c44e0ada079fcbbb10d88

SHA256
b8f2f925e590454936890dee3fce3cc2bef89b14f6442026935dcfbf1b22c517

SHA512
432671073d5c0eff56ddf60cff86168996c610b117e77d87a223c1c5d1c77cca7f2a0d21b9485f049c7b739235d84e64399c911eb2cbf9c6fcf1996711a32976

Download Submit
memory/1424-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1424-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads