f28be13e3bdf3c25916f7a6712465bc2405afb6b5931db2fc5f5d1316f7c5332

General

Target

f28be13e3bdf3c25916f7a6712465bc2405afb6b5931db2fc5f5d1316f7c5332.dll
Size

184KB
MD5

64c2681e0741e4a504862266d6dee021
SHA1

4c7af8e37bb21b47e92c3194d105420684295893
SHA256

f28be13e3bdf3c25916f7a6712465bc2405afb6b5931db2fc5f5d1316f7c5332
SHA512

1510dae97b5900ef6a1b5223649ca8ea2567b256b2cbcdf47c808401d83563c42ce2211147bb668c5433f7fc2537eb3faca0e698a5782690d9dd13705e2c7616
SSDEEP

3072:qvXmimD0k0QRW1PhI1sItKOgGdX3DUP+ooqApFtEU1aFjKGyfHaWlmgM89Wl:q+fD/0QSzItKOgGFYGooqKEQf6WzMh

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2632	rundll32mgr.exe
2080	WaterMark.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2632-138-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2632-139-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2632-142-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2080-146-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/2080-148-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/2080-149-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/2080-153-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/2080-154-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/2080-155-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/2080-156-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/2080-157-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px1136.tmp	rundll32mgr.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4284	5040	WerFault.exe	84

Modifies Internet Explorer settings 1 TTPs 19 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
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\DomainSuggestion	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 (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\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 (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\Recovery\PendingRecovery	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\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 (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{9697EED0-43FF-11ED-B696-DAE60F07E07D} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	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
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\Main	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\DomainSuggestion\NextUpdateDate = "371665059"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
2080	WaterMark.exe
2080	WaterMark.exe
2080	WaterMark.exe
2080	WaterMark.exe
2080	WaterMark.exe
2080	WaterMark.exe
2080	WaterMark.exe
2080	WaterMark.exe
2080	WaterMark.exe
2080	WaterMark.exe
2080	WaterMark.exe
2080	WaterMark.exe
2080	WaterMark.exe
2080	WaterMark.exe
2080	WaterMark.exe
2080	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2080	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1992	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1992	iexplore.exe
1992	iexplore.exe
2604	IEXPLORE.EXE
2604	IEXPLORE.EXE
2604	IEXPLORE.EXE
2604	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2632	rundll32mgr.exe
2080	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1252 wrote to memory of 2264	1252	rundll32.exe	81
PID 1252 wrote to memory of 2264	1252	rundll32.exe	81
PID 1252 wrote to memory of 2264	1252	rundll32.exe	81
PID 2264 wrote to memory of 2632	2264	rundll32.exe	82
PID 2264 wrote to memory of 2632	2264	rundll32.exe	82
PID 2264 wrote to memory of 2632	2264	rundll32.exe	82
PID 2632 wrote to memory of 2080	2632	rundll32mgr.exe	83
PID 2632 wrote to memory of 2080	2632	rundll32mgr.exe	83
PID 2632 wrote to memory of 2080	2632	rundll32mgr.exe	83
PID 2080 wrote to memory of 5040	2080	WaterMark.exe	84
PID 2080 wrote to memory of 5040	2080	WaterMark.exe	84
PID 2080 wrote to memory of 5040	2080	WaterMark.exe	84
PID 2080 wrote to memory of 5040	2080	WaterMark.exe	84
PID 2080 wrote to memory of 5040	2080	WaterMark.exe	84
PID 2080 wrote to memory of 5040	2080	WaterMark.exe	84
PID 2080 wrote to memory of 5040	2080	WaterMark.exe	84
PID 2080 wrote to memory of 5040	2080	WaterMark.exe	84
PID 2080 wrote to memory of 5040	2080	WaterMark.exe	84
PID 2080 wrote to memory of 4312	2080	WaterMark.exe	88
PID 2080 wrote to memory of 4312	2080	WaterMark.exe	88
PID 2080 wrote to memory of 1992	2080	WaterMark.exe	89
PID 2080 wrote to memory of 1992	2080	WaterMark.exe	89
PID 1992 wrote to memory of 2604	1992	iexplore.exe	90
PID 1992 wrote to memory of 2604	1992	iexplore.exe	90
PID 1992 wrote to memory of 2604	1992	iexplore.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f28be13e3bdf3c25916f7a6712465bc2405afb6b5931db2fc5f5d1316f7c5332.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1252
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f28be13e3bdf3c25916f7a6712465bc2405afb6b5931db2fc5f5d1316f7c5332.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:2264
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:2632
  - - C:\Program Files (x86)\Microsoft\WaterMark.exe
      "C:\Program Files (x86)\Microsoft\WaterMark.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of UnmapMainImage
      Suspicious use of WriteProcessMemory
      PID:2080
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:5040
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 5040 -s 204
        6⤵
        Program crash
        
        PID:4284
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:4312
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1992
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1992 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 180 -p 5040 -ip 5040
1⤵
PID:4992

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

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

Filesize
92KB

MD5
e6d2ce425ee7875c2b6006c7ca938f16

SHA1
b47bd42fbe8948ca5284e7d4d7d98464f5834d12

SHA256
69379c2c6b3da8617d2af7e2745f929dc1545297ff0b4d5e3e1c50643b091101

SHA512
bbac6540b44e5413b37e6dada09e78602a790178352fcd2b0a357272b16de0e594b89952ed7d725639edc44dad94d6cffd61c6c2e74d551afd3d30d874d364cb

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

Filesize
92KB

MD5
e6d2ce425ee7875c2b6006c7ca938f16

SHA1
b47bd42fbe8948ca5284e7d4d7d98464f5834d12

SHA256
69379c2c6b3da8617d2af7e2745f929dc1545297ff0b4d5e3e1c50643b091101

SHA512
bbac6540b44e5413b37e6dada09e78602a790178352fcd2b0a357272b16de0e594b89952ed7d725639edc44dad94d6cffd61c6c2e74d551afd3d30d874d364cb

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
92KB

MD5
e6d2ce425ee7875c2b6006c7ca938f16

SHA1
b47bd42fbe8948ca5284e7d4d7d98464f5834d12

SHA256
69379c2c6b3da8617d2af7e2745f929dc1545297ff0b4d5e3e1c50643b091101

SHA512
bbac6540b44e5413b37e6dada09e78602a790178352fcd2b0a357272b16de0e594b89952ed7d725639edc44dad94d6cffd61c6c2e74d551afd3d30d874d364cb

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
92KB

MD5
e6d2ce425ee7875c2b6006c7ca938f16

SHA1
b47bd42fbe8948ca5284e7d4d7d98464f5834d12

SHA256
69379c2c6b3da8617d2af7e2745f929dc1545297ff0b4d5e3e1c50643b091101

SHA512
bbac6540b44e5413b37e6dada09e78602a790178352fcd2b0a357272b16de0e594b89952ed7d725639edc44dad94d6cffd61c6c2e74d551afd3d30d874d364cb

Download Submit
memory/2080-156-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2080-153-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2080-155-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2080-157-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2080-146-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2080-148-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2080-149-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2080-154-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2632-138-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2632-142-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2632-139-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

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