db455a015a1dad6687854e9439dfd94c74ae7687682fdc97530ca04422929175

Analysis

max time kernel
94s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
04/10/2022, 05:14

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General

Target

db455a015a1dad6687854e9439dfd94c74ae7687682fdc97530ca04422929175.dll
Size

256KB
MD5

4892c63783a601b914c180b8e62a4a17
SHA1

7a665e9a7470431423918d16e4b31b2437d67753
SHA256

db455a015a1dad6687854e9439dfd94c74ae7687682fdc97530ca04422929175
SHA512

1e36a9a063f715466ddb5e3289e60c1aeb695d4f475ffbb1ce9cedc79a5e76182d1f2764042d5fbe088198110a58e80d85e823bcf6828d42320eae68ee61071f
SSDEEP

3072:j0NbrbkYHUyP9eECVWfpIhbWoVnW6IioARoKO7JurqeBTg4vRP86TvOB5n+902av:YrkYHjIWeWcd71bynuACvIH

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2344	rundll32mgr.exe
1780	WaterMark.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2344-139-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2344-140-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2344-143-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1780-151-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/1780-152-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/1780-153-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/1780-154-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/1780-156-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/1780-157-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/1780-158-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/1780-159-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/1780-160-0x0000000000400000-0x0000000000421000-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 created	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px1BB6.tmp	rundll32mgr.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4428	3136	WerFault.exe	85
536	4924	WerFault.exe	80

Modifies Internet Explorer settings 1 TTPs 29 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "371661957"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1168987155"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30988293"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30988293"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1094613406"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{6B5E9854-43F8-11ED-AECB-7ED4F7B3352B} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1094613406"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30988293"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
1780	WaterMark.exe
1780	WaterMark.exe
1780	WaterMark.exe
1780	WaterMark.exe
1780	WaterMark.exe
1780	WaterMark.exe
1780	WaterMark.exe
1780	WaterMark.exe
1780	WaterMark.exe
1780	WaterMark.exe
1780	WaterMark.exe
1780	WaterMark.exe
1780	WaterMark.exe
1780	WaterMark.exe
1780	WaterMark.exe
1780	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1780	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4036	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4036	iexplore.exe
4036	iexplore.exe
2192	IEXPLORE.EXE
2192	IEXPLORE.EXE
2192	IEXPLORE.EXE
2192	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2344	rundll32mgr.exe
1780	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 4980 wrote to memory of 4924	4980	rundll32.exe	80
PID 4980 wrote to memory of 4924	4980	rundll32.exe	80
PID 4980 wrote to memory of 4924	4980	rundll32.exe	80
PID 4924 wrote to memory of 2344	4924	rundll32.exe	81
PID 4924 wrote to memory of 2344	4924	rundll32.exe	81
PID 4924 wrote to memory of 2344	4924	rundll32.exe	81
PID 2344 wrote to memory of 1780	2344	rundll32mgr.exe	84
PID 2344 wrote to memory of 1780	2344	rundll32mgr.exe	84
PID 2344 wrote to memory of 1780	2344	rundll32mgr.exe	84
PID 1780 wrote to memory of 3136	1780	WaterMark.exe	85
PID 1780 wrote to memory of 3136	1780	WaterMark.exe	85
PID 1780 wrote to memory of 3136	1780	WaterMark.exe	85
PID 1780 wrote to memory of 3136	1780	WaterMark.exe	85
PID 1780 wrote to memory of 3136	1780	WaterMark.exe	85
PID 1780 wrote to memory of 3136	1780	WaterMark.exe	85
PID 1780 wrote to memory of 3136	1780	WaterMark.exe	85
PID 1780 wrote to memory of 3136	1780	WaterMark.exe	85
PID 1780 wrote to memory of 3136	1780	WaterMark.exe	85
PID 1780 wrote to memory of 4368	1780	WaterMark.exe	89
PID 1780 wrote to memory of 4368	1780	WaterMark.exe	89
PID 1780 wrote to memory of 4036	1780	WaterMark.exe	90
PID 1780 wrote to memory of 4036	1780	WaterMark.exe	90
PID 4036 wrote to memory of 2192	4036	iexplore.exe	91
PID 4036 wrote to memory of 2192	4036	iexplore.exe	91
PID 4036 wrote to memory of 2192	4036	iexplore.exe	91

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\db455a015a1dad6687854e9439dfd94c74ae7687682fdc97530ca04422929175.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4980
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\db455a015a1dad6687854e9439dfd94c74ae7687682fdc97530ca04422929175.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4924
- - 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:2344
  - - 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:1780
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:3136
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3136 -s 204
        6⤵
        Program crash
        
        PID:4428
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:4368
    - - 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:4036
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4036 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2192
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4924 -s 608
    3⤵
    - Program crash
    PID:536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4924 -ip 4924
1⤵
PID:1812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3136 -ip 3136
1⤵
PID:1920

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
89KB

MD5
09c3d4561f7568136eba3497a70097e4

SHA1
ea5663c35fd4c4bc6abd708e3389d0a6e500e6fb

SHA256
b5d9a59d44b1f9178a9655a29bbed0e614ecbb64f9950dfb0f964046c225bd53

SHA512
3b1aee08f81495470471ed20cb00139fda41c94547c5077cd21384ad21c7b3c8a58849e813d4cfc6019171afb3dfeb2ddc270bf7de1d9c9a4242ae4b3b09288b

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

Filesize
89KB

MD5
09c3d4561f7568136eba3497a70097e4

SHA1
ea5663c35fd4c4bc6abd708e3389d0a6e500e6fb

SHA256
b5d9a59d44b1f9178a9655a29bbed0e614ecbb64f9950dfb0f964046c225bd53

SHA512
3b1aee08f81495470471ed20cb00139fda41c94547c5077cd21384ad21c7b3c8a58849e813d4cfc6019171afb3dfeb2ddc270bf7de1d9c9a4242ae4b3b09288b

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
afc3e2584b32e1e7c23c33e9534089a5

SHA1
ea4e2266d010c300621d2287ea60fe3e9a9ee753

SHA256
61597f5f937da250a5ed7b4b82867bebc546a5a35c0029982a003b1e9cbd2e7e

SHA512
f0e0d20b15bc390292baf0d93d982315afc466ccd2d4e48152ed65af97aed573d5b9e65b2b50925cbcd2e736955dfec4f63de5739cdb1499eb2db5dfc3cc4fe6

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
e869c9c82e2ccfabdec4d4a47995e582

SHA1
f2d6159ef0025b66e0e76aaa35c4f47aa90616f9

SHA256
24ada17f03263e2fe4d5bfdb4631b2f70a1fc9b58e701d0ca7c01fb23bf21f6f

SHA512
3dc464a24475561b7f7f0570033aa4618329e07ac01da3c1e56d2e631677b739925f96ddacfce146fc783137a9a0376c12a16fd2f3d6e659b525140a06d1ebdc

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

Filesize
89KB

MD5
09c3d4561f7568136eba3497a70097e4

SHA1
ea5663c35fd4c4bc6abd708e3389d0a6e500e6fb

SHA256
b5d9a59d44b1f9178a9655a29bbed0e614ecbb64f9950dfb0f964046c225bd53

SHA512
3b1aee08f81495470471ed20cb00139fda41c94547c5077cd21384ad21c7b3c8a58849e813d4cfc6019171afb3dfeb2ddc270bf7de1d9c9a4242ae4b3b09288b

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

Filesize
89KB

MD5
09c3d4561f7568136eba3497a70097e4

SHA1
ea5663c35fd4c4bc6abd708e3389d0a6e500e6fb

SHA256
b5d9a59d44b1f9178a9655a29bbed0e614ecbb64f9950dfb0f964046c225bd53

SHA512
3b1aee08f81495470471ed20cb00139fda41c94547c5077cd21384ad21c7b3c8a58849e813d4cfc6019171afb3dfeb2ddc270bf7de1d9c9a4242ae4b3b09288b

Download Submit
memory/1780-157-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1780-158-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1780-160-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1780-159-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1780-156-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1780-151-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1780-152-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1780-153-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1780-154-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2344-140-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2344-143-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2344-139-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4924-155-0x0000000074B80000-0x0000000074BC5000-memory.dmp

Filesize
276KB

Download
memory/4924-133-0x0000000074B80000-0x0000000074BC5000-memory.dmp

Filesize
276KB

Download