7f62c95b7e15becf30f12cc01b8c655022c5436e48cb82577f72c2ee63d89ac8

Analysis

max time kernel
117s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02-10-2022 23:37

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General

Target

7f62c95b7e15becf30f12cc01b8c655022c5436e48cb82577f72c2ee63d89ac8.exe
Size

141KB
MD5

6e2d1100e740fd3d289c68b3dc6a5380
SHA1

5fefc37b4c836343af260f932fc489186cf48abd
SHA256

7f62c95b7e15becf30f12cc01b8c655022c5436e48cb82577f72c2ee63d89ac8
SHA512

733b8ffd2fc3e86a8c1310e06e95fbebe28073f9ca126c0b4a36100c1b928f43d6e0b97b3f270b159308d9a0f2c1476cfaae1f53366237f54a4f67fbdccee7fa
SSDEEP

3072:KR2xn3k0CdM1vabyzJYWqH/6Xas1Fe0mY82Q:KR2J0LS6Vf6X91FgY+

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1132	WaterMark.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2200-134-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2200-135-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2200-138-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1132-146-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral2/memory/1132-147-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral2/memory/1132-148-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral2/memory/1132-149-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral2/memory/1132-150-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral2/memory/1132-151-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral2/memory/1132-152-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral2/memory/1132-153-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral2/memory/1132-155-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px82F0.tmp	7f62c95b7e15becf30f12cc01b8c655022c5436e48cb82577f72c2ee63d89ac8.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	7f62c95b7e15becf30f12cc01b8c655022c5436e48cb82577f72c2ee63d89ac8.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	7f62c95b7e15becf30f12cc01b8c655022c5436e48cb82577f72c2ee63d89ac8.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3208	2132	WerFault.exe	84
3044	2132	WerFault.exe	84

Modifies Internet Explorer settings 1 TTPs 38 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3118181885"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{DF882C49-42E1-11ED-B696-72E5C3FA065D} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "371542321"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30988014"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3118181885"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{DF85CEC2-42E1-11ED-B696-72E5C3FA065D} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30988014"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
1132	WaterMark.exe
1132	WaterMark.exe
1132	WaterMark.exe
1132	WaterMark.exe
1132	WaterMark.exe
1132	WaterMark.exe
1132	WaterMark.exe
1132	WaterMark.exe
1132	WaterMark.exe
1132	WaterMark.exe
1132	WaterMark.exe
1132	WaterMark.exe
1132	WaterMark.exe
1132	WaterMark.exe
1132	WaterMark.exe
1132	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1132	WaterMark.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3404	iexplore.exe
696	iexplore.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
696	iexplore.exe
696	iexplore.exe
3404	iexplore.exe
3404	iexplore.exe
4496	IEXPLORE.EXE
4496	IEXPLORE.EXE
2184	IEXPLORE.EXE
2184	IEXPLORE.EXE
2184	IEXPLORE.EXE
2184	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2200	7f62c95b7e15becf30f12cc01b8c655022c5436e48cb82577f72c2ee63d89ac8.exe
1132	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 1132	2200	7f62c95b7e15becf30f12cc01b8c655022c5436e48cb82577f72c2ee63d89ac8.exe	82
PID 2200 wrote to memory of 1132	2200	7f62c95b7e15becf30f12cc01b8c655022c5436e48cb82577f72c2ee63d89ac8.exe	82
PID 2200 wrote to memory of 1132	2200	7f62c95b7e15becf30f12cc01b8c655022c5436e48cb82577f72c2ee63d89ac8.exe	82
PID 1132 wrote to memory of 2132	1132	WaterMark.exe	84
PID 1132 wrote to memory of 2132	1132	WaterMark.exe	84
PID 1132 wrote to memory of 2132	1132	WaterMark.exe	84
PID 1132 wrote to memory of 2132	1132	WaterMark.exe	84
PID 1132 wrote to memory of 2132	1132	WaterMark.exe	84
PID 1132 wrote to memory of 2132	1132	WaterMark.exe	84
PID 1132 wrote to memory of 2132	1132	WaterMark.exe	84
PID 1132 wrote to memory of 2132	1132	WaterMark.exe	84
PID 1132 wrote to memory of 2132	1132	WaterMark.exe	84
PID 1132 wrote to memory of 3404	1132	WaterMark.exe	88
PID 1132 wrote to memory of 3404	1132	WaterMark.exe	88
PID 1132 wrote to memory of 696	1132	WaterMark.exe	89
PID 1132 wrote to memory of 696	1132	WaterMark.exe	89
PID 2132 wrote to memory of 3208	2132	svchost.exe	87
PID 2132 wrote to memory of 3208	2132	svchost.exe	87
PID 2132 wrote to memory of 3208	2132	svchost.exe	87
PID 696 wrote to memory of 4496	696	iexplore.exe	91
PID 696 wrote to memory of 4496	696	iexplore.exe	91
PID 696 wrote to memory of 4496	696	iexplore.exe	91
PID 3404 wrote to memory of 2184	3404	iexplore.exe	92
PID 3404 wrote to memory of 2184	3404	iexplore.exe	92
PID 3404 wrote to memory of 2184	3404	iexplore.exe	92

C:\Users\Admin\AppData\Local\Temp\7f62c95b7e15becf30f12cc01b8c655022c5436e48cb82577f72c2ee63d89ac8.exe
"C:\Users\Admin\AppData\Local\Temp\7f62c95b7e15becf30f12cc01b8c655022c5436e48cb82577f72c2ee63d89ac8.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Program Files (x86)\Microsoft\WaterMark.exe
  "C:\Program Files (x86)\Microsoft\WaterMark.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:1132
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2132
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2132 -s 208
      4⤵
      Program crash
      PID:3208
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2132 -s 208
      4⤵
      Program crash
      PID:3044
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3404
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3404 CREDAT:17410 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:2184
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:696
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:696 CREDAT:17410 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:4496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2132 -ip 2132
1⤵
PID:4908

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

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:\Program Files (x86)\Microsoft\WaterMark.exe

Filesize
141KB

MD5
6e2d1100e740fd3d289c68b3dc6a5380

SHA1
5fefc37b4c836343af260f932fc489186cf48abd

SHA256
7f62c95b7e15becf30f12cc01b8c655022c5436e48cb82577f72c2ee63d89ac8

SHA512
733b8ffd2fc3e86a8c1310e06e95fbebe28073f9ca126c0b4a36100c1b928f43d6e0b97b3f270b159308d9a0f2c1476cfaae1f53366237f54a4f67fbdccee7fa

Download Submit
C:\Program Files (x86)\Microsoft\WaterMark.exe

Filesize
141KB

MD5
6e2d1100e740fd3d289c68b3dc6a5380

SHA1
5fefc37b4c836343af260f932fc489186cf48abd

SHA256
7f62c95b7e15becf30f12cc01b8c655022c5436e48cb82577f72c2ee63d89ac8

SHA512
733b8ffd2fc3e86a8c1310e06e95fbebe28073f9ca126c0b4a36100c1b928f43d6e0b97b3f270b159308d9a0f2c1476cfaae1f53366237f54a4f67fbdccee7fa

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{DF85CEC2-42E1-11ED-B696-72E5C3FA065D}.dat

Filesize
3KB

MD5
be86d3c87f83f5473c85b3122c28f2d8

SHA1
5a2b9ae5e90627e61db1524aaa2fa3872d006a56

SHA256
899a04013dbed1da1f765c1a2538c2281fb565cdd9aed737a99757466ea22108

SHA512
4babc8ac5d013fa5c8c4db6b933837a91f69b2891cf578ca3d91feada3aeaf033d70961ea2adda2f978014d8686a36ced663c41e92da8bc052cc5da266621b62

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{DF882C49-42E1-11ED-B696-72E5C3FA065D}.dat

Filesize
3KB

MD5
eeee8c7916060edc067ae2e1196e7589

SHA1
b454b80504d1de6b7d37b3ecdecad57989bc8e33

SHA256
42f5205dd738faf35ef370313ee44d0b3f9130d3160713b7e098c05fc58c59a9

SHA512
08fc0d9e96c0843cc9d6ea3ade0c1f2353f730da393536001e7b54faede1f8b1db99a8f0bfe70d1562c8edeba7e3a6c1ff6fd8948ebe8a2daf011d110b95400b

Download Submit
memory/1132-147-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1132-153-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1132-136-0x0000000000000000-mapping.dmp

Download
memory/1132-146-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1132-155-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1132-148-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1132-149-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1132-150-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1132-151-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1132-152-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2132-145-0x0000000000000000-mapping.dmp

Download
memory/2200-138-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2200-134-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2200-135-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3208-154-0x0000000000000000-mapping.dmp

Download