893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f

General

Target

893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
Size

83KB
MD5

3a966e7988c75c3e59bef954191e2ba2
SHA1

c80075f0e1443a4aab117e1eb9689fea4edef4f9
SHA256

893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f
SHA512

2f8eb208e52324afbb3e1dbd607fae007aceff19e460c04813adb3b92a5328e93a72e3a9f6e90eb04bd455b7721483bd5c34fe0fb64e2f86e9fb45d86a23e5f6
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOB+raXsl:GhfxHNIreQm+HiG+raXsl

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1308	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	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.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	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
File created	C:\Windows\SysWOW64\¢«.exe	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
File created	C:\Windows\system\rundll32.exe	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.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
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717932608"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717932608"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1308	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
1308	rundll32.exe
1308	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 1308	2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe	84
PID 2676 wrote to memory of 1308	2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe	84
PID 2676 wrote to memory of 1308	2676	893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe	84

C:\Users\Admin\AppData\Local\Temp\893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.exe
"C:\Users\Admin\AppData\Local\Temp\893a8d13f3a2f4101c86296a40c0fb9a4c3c26308bf93ed6a0d0abcb30ab4c7f.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:2676
- 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:1308

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
79KB

MD5
1cffe46b55ef9342735594c04d66a5ec

SHA1
58843920258604a3e7be86c6dd31bd70314122cd

SHA256
1800752e247fc35bcebccc34c3902211de183336755b11ad6e5cabe36ec0817a

SHA512
aea43d5f03c4acb0ba04d0a4c728a123c53300711531e433871b02e3aaf7dcaabc3ebfcd31df3303a6366154f20d59d508de4bd0b2aa3287213f1b790436f969

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

Filesize
82KB

MD5
8185d05a49de47a308450796fad8fca8

SHA1
9092fb3280a80382094b93045f590bad06c3c233

SHA256
25c9326c18fad171af3f13fd338ff407ccc02e98a4187ad23616773c949d6add

SHA512
603f1735684ebe6faca341d79d37bc14b86b6358a4e201466ed3313fdcd9b821425f2f8205d74a7af718522291a318cf88194b0ca11b81c4ec2995acf371dd1c

Download Submit
memory/2676-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2676-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads