c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c

Analysis

max time kernel
150s
max time network
149s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
21/11/2022, 16:58

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General

Target

c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe
Size

58KB
MD5

3333ca5007f8b5720927abea78295870
SHA1

885f7fc4591dd88ff94b1dd198925b900ecbd772
SHA256

c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c
SHA512

8b051b09e21cbd3625b40697728d655943b46c31aee785d09e3c5fe6a82b50f009601f9e55c102391a32d8082ecaa432b5fdf7591d112375104459a527fbfd66
SSDEEP

1536:mHMvi7ZSoqGS/vupyOsR5fg9jtR9IuZ70HbBvqki:mbTqDOWeRmq7AVCki

Score

8^/10

evasion persistence

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\ming9bstart = "C:\\Windows\\system\\ming9b090423.exe"	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1158

pid	Process
1116	attrib.exe
832	attrib.exe

Deletes itself 1 IoCs

pid	Process
1104	cmd.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\nb9ming32c090423.dll	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe
File created	C:\Windows\system\nb9ming32c090423.dll	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe
File opened for modification	C:\Windows\system\nb9ming32c090423.dll	attrib.exe
File created	C:\Windows\system\ming9b090423.exe	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe
File opened for modification	C:\Windows\system\ming9b090423.exe	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe
File opened for modification	C:\Windows\system\ming9b090423.exe	attrib.exe

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{55578EA1-69C6-11ED-874D-7AEFAD47A2D2} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375818583"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\Check_Associations = "no"	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe
1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe
1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe
1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe
1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe
Token: SeSystemtimePrivilege	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe
Token: SeSystemtimePrivilege	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe
Token: SeDebugPrivilege	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe
Token: SeDebugPrivilege	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe
Token: SeDebugPrivilege	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
676	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
676	iexplore.exe
676	iexplore.exe
704	IEXPLORE.EXE
704	IEXPLORE.EXE
704	IEXPLORE.EXE
704	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 1116	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe	28
PID 1708 wrote to memory of 1116	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe	28
PID 1708 wrote to memory of 1116	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe	28
PID 1708 wrote to memory of 1116	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe	28
PID 1708 wrote to memory of 832	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe	30
PID 1708 wrote to memory of 832	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe	30
PID 1708 wrote to memory of 832	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe	30
PID 1708 wrote to memory of 832	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe	30
PID 1708 wrote to memory of 676	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe	32
PID 1708 wrote to memory of 676	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe	32
PID 1708 wrote to memory of 676	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe	32
PID 1708 wrote to memory of 676	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe	32
PID 676 wrote to memory of 704	676	iexplore.exe	34
PID 676 wrote to memory of 704	676	iexplore.exe	34
PID 676 wrote to memory of 704	676	iexplore.exe	34
PID 676 wrote to memory of 704	676	iexplore.exe	34
PID 1708 wrote to memory of 676	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe	32
PID 1708 wrote to memory of 1104	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe	36
PID 1708 wrote to memory of 1104	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe	36
PID 1708 wrote to memory of 1104	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe	36
PID 1708 wrote to memory of 1104	1708	c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe	36

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1116	attrib.exe
832	attrib.exe

C:\Users\Admin\AppData\Local\Temp\c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe
"C:\Users\Admin\AppData\Local\Temp\c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe"
1⤵
- Adds policy Run key to start application
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Windows\SysWOW64\attrib.exe
  attrib +s +h "C:\Windows\system\ming9b090423.exe"
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - Views/modifies file attributes
  PID:1116
- C:\Windows\SysWOW64\attrib.exe
  attrib +s +h "C:\Windows\system\nb9ming32c090423.dll"
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - Views/modifies file attributes
  PID:832
- C:\program files\internet explorer\iexplore.exe
  "C:\program files\internet explorer\iexplore.exe"
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:676
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:676 CREDAT:275457 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:704
- C:\Windows\SysWOW64\cmd.exe
  cmd /c del "C:\Users\Admin\AppData\Local\Temp\c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c.exe"
  2⤵
  - Deletes itself
  PID:1104

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

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\ZH4U1IH0.txt

Filesize
608B

MD5
8557580ec78abbd4fec919469a54f7c1

SHA1
e5f458f658b003b09182fe7d028323e217809c27

SHA256
0cda4b313da7cb5300795bad13890a68d84e62c9ee82792517b41e7cb9ed524f

SHA512
915283e7f6866d84d792730a8c05e239c1834a6c7543e940d5d15deb0fda5c455bd57922e95a4de6252344e9392e1691017e5bddc87166d84f430d06523a6491

Download Submit
C:\Windows\system\ming9b090423.exe

Filesize
58KB

MD5
3333ca5007f8b5720927abea78295870

SHA1
885f7fc4591dd88ff94b1dd198925b900ecbd772

SHA256
c8a3103d94971343fa0e1be5f2b1aac9de63f7276c95a95bc9783a22a037009c

SHA512
8b051b09e21cbd3625b40697728d655943b46c31aee785d09e3c5fe6a82b50f009601f9e55c102391a32d8082ecaa432b5fdf7591d112375104459a527fbfd66

Download Submit
C:\Windows\system\nb9ming32c090423.dll

Filesize
108KB

MD5
45921247ff63cc91525920004f989276

SHA1
dc417f62a1184bf2de3b4058b47af14ec0a12bbc

SHA256
2a905605a173ac6f59e9de5bab1d6cc2da4612bc5cb33375e31c34e43455df75

SHA512
9dabba55870ce9da5b7189a8e25f124ba0c1c2e600d0b969b055d399008562e844706c80246c5e3238aff554ae9166ee10e80d88d8a8b1c4741685c14155fe3b

Download Submit