3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913

Analysis

max time kernel
152s
max time network
149s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
21-10-2022 01:59

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General

Target

3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913.exe
Size

43KB
MD5

48e8f2d02325efc478077b9c36eea2c7
SHA1

a6e42979450ee8864d2e278677e72afe79eed705
SHA256

3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913
SHA512

f4e92864f04d56852731ba91d640ce2ef30dc8e5ed327e43e4b5d25f4f0d06cc07caf82eb86ee281fe852db2492d519df9f1418659df82a44b8d1dc6f786c873
SSDEEP

768:yM8E/YC30zLP70lgrL9HI/ONvRCQ7UdBuOCUgNXmXHN:NYC38bgg9GQ7+CU4XmXHN

Score

8^/10

bootkit persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1680	TenSafe.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1132-56-0x0000000000400000-0x000000000041E000-memory.dmp	upx
behavioral1/files/0x000c0000000054a8-58.dat	upx
behavioral1/memory/1680-65-0x0000000000400000-0x000000000041E000-memory.dmp	upx
behavioral1/memory/1132-66-0x0000000000400000-0x000000000041E000-memory.dmp	upx
behavioral1/memory/1680-67-0x0000000000400000-0x000000000041E000-memory.dmp	upx
behavioral1/memory/1132-68-0x0000000000400000-0x000000000041E000-memory.dmp	upx

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	3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\TenSafe.exe	3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913.exe
File opened for modification	C:\Windows\TenSafe.exe	3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913.exe

Modifies Internet Explorer settings 1 TTPs 34 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 30b8fc0438e5d801	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000e0f3d159765a7f43b6bf060b4b70c9a300000000020000000000106600000001000020000000edcc27e23d2dfd69ba6e2c4b3565e30e9ce063d2405d1ad132814486193d6c46000000000e80000000020000200000009537396d01999ba7d989a89fc2726a3b5fe32f422f26ae32239c874705737d8f200000002425be6c41dc0568ec1b9a36c1d2649a167e6cd4b1780ceb387ae26d4dbd9fd84000000035bf784d424e5a5d367c0138688ac18349602f5024ade7f17b48f7fd6022840debfcbccf35e951559100b68dc9efe1f7e2c9073977df29a890434b5a4ae83fcd	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "373113106"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{26EEFED1-512B-11ED-8F62-626C2AE6DC56} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1132	3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
948	iexplore.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
1132	3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913.exe
1680	TenSafe.exe
948	iexplore.exe
948	iexplore.exe
1984	IEXPLORE.EXE
1984	IEXPLORE.EXE
1984	IEXPLORE.EXE
1984	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1132 wrote to memory of 1680	1132	3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913.exe	28
PID 1132 wrote to memory of 1680	1132	3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913.exe	28
PID 1132 wrote to memory of 1680	1132	3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913.exe	28
PID 1132 wrote to memory of 1680	1132	3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913.exe	28
PID 1132 wrote to memory of 948	1132	3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913.exe	29
PID 1132 wrote to memory of 948	1132	3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913.exe	29
PID 1132 wrote to memory of 948	1132	3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913.exe	29
PID 1132 wrote to memory of 948	1132	3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913.exe	29
PID 948 wrote to memory of 1984	948	iexplore.exe	31
PID 948 wrote to memory of 1984	948	iexplore.exe	31
PID 948 wrote to memory of 1984	948	iexplore.exe	31
PID 948 wrote to memory of 1984	948	iexplore.exe	31

C:\Users\Admin\AppData\Local\Temp\3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913.exe
"C:\Users\Admin\AppData\Local\Temp\3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1132
- C:\Windows\TenSafe.exe
  C:\Windows\TenSafe.exe auto
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1680
- C:\progra~1\Intern~1\iexplore.exe
  C:\\progra~1\\Intern~1\\iexplore.exe http://jianqiangzhe.com/AddSetup.asp?57;€UQ44457€7€5436536466$54>6<>94$EQ€6<
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:948
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:948 CREDAT:275457 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:1984

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\8ISXG4GI.txt

Filesize
603B

MD5
ede3c5b931f0db4389a9dee7059e2ba6

SHA1
903ce46a443842216c93e92ccf6e20f1e67d45a2

SHA256
bb9ffdd15fb2929fd1fb41ef242ae875fd7c71c6b701bec2d6e5d4dafd29f149

SHA512
03d026663e619a3669a60c4f61db6946d4606e1e81c8076de5e18033c73a6ce5ea0ffb2d3f5b369516459f774457d94b2945afebb7578fadd71d1f9bafbc529b

Download Submit
C:\Windows\TenSafe.exe

Filesize
43KB

MD5
48e8f2d02325efc478077b9c36eea2c7

SHA1
a6e42979450ee8864d2e278677e72afe79eed705

SHA256
3d99609d29ff105fb98e742e269ff7ba4bc660c3378ea261eada1ecb62c56913

SHA512
f4e92864f04d56852731ba91d640ce2ef30dc8e5ed327e43e4b5d25f4f0d06cc07caf82eb86ee281fe852db2492d519df9f1418659df82a44b8d1dc6f786c873

Download Submit
memory/948-61-0x0000000000000000-mapping.dmp

Download
memory/1132-56-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1132-62-0x0000000075FB1000-0x0000000075FB3000-memory.dmp

Filesize
8KB

Download
memory/1132-64-0x0000000000230000-0x000000000024E000-memory.dmp

Filesize
120KB

Download
memory/1132-63-0x0000000000230000-0x000000000024E000-memory.dmp

Filesize
120KB

Download
memory/1132-66-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1132-68-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1680-57-0x0000000000000000-mapping.dmp

Download
memory/1680-65-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1680-67-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download