d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c

Analysis

max time kernel
130s
max time network
135s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
03/12/2022, 12:26

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General

Target

d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe
Size

220KB
MD5

901a8d336b88c0917c995b07ce1c433d
SHA1

99aab204407cd7f515df8f961a7268cff74cd5f6
SHA256

d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c
SHA512

3d4c8457cda746eabdb0910713119aa50ea47a98c18591e9bc3d38972ae6f8af3a9df84d15fdce52e35e0a766f19b168eeab473b86eefaeb701dc3a21263c69d
SSDEEP

3072:WZ9D0m1KKwITtrgQ5F05+N1WuZeCnfD1IMOLUTEEQDMRLp39/BiVeJio9S:WZJMRQPYa1WyeSfa1kfQCpt/4VeT

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1276	Rpeyep.exe
636	Rpeyep.exe

Loads dropped DLL 2 IoCs

pid	Process
1124	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe
1124	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe

Adds 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\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rpeyep = "C:\\Users\\Admin\\AppData\\Roaming\\Rpeyep.exe"	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1468 set thread context of 1124	1468	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	27
PID 1276 set thread context of 636	1276	Rpeyep.exe	29

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IntelliForms	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\PageSetup	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{95BE5C21-7566-11ED-A03D-460E09B1FADA} = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "377096879"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\InternetRegistry	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Zoom	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1124	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	636	Rpeyep.exe
Token: SeDebugPrivilege	844	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1672	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1672	IEXPLORE.EXE
1672	IEXPLORE.EXE
844	IEXPLORE.EXE
844	IEXPLORE.EXE
844	IEXPLORE.EXE
844	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 1468 wrote to memory of 1124	1468	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	27
PID 1468 wrote to memory of 1124	1468	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	27
PID 1468 wrote to memory of 1124	1468	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	27
PID 1468 wrote to memory of 1124	1468	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	27
PID 1468 wrote to memory of 1124	1468	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	27
PID 1468 wrote to memory of 1124	1468	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	27
PID 1468 wrote to memory of 1124	1468	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	27
PID 1468 wrote to memory of 1124	1468	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	27
PID 1468 wrote to memory of 1124	1468	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	27
PID 1468 wrote to memory of 1124	1468	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	27
PID 1124 wrote to memory of 1276	1124	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	28
PID 1124 wrote to memory of 1276	1124	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	28
PID 1124 wrote to memory of 1276	1124	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	28
PID 1124 wrote to memory of 1276	1124	d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe	28
PID 1276 wrote to memory of 636	1276	Rpeyep.exe	29
PID 1276 wrote to memory of 636	1276	Rpeyep.exe	29
PID 1276 wrote to memory of 636	1276	Rpeyep.exe	29
PID 1276 wrote to memory of 636	1276	Rpeyep.exe	29
PID 1276 wrote to memory of 636	1276	Rpeyep.exe	29
PID 1276 wrote to memory of 636	1276	Rpeyep.exe	29
PID 1276 wrote to memory of 636	1276	Rpeyep.exe	29
PID 1276 wrote to memory of 636	1276	Rpeyep.exe	29
PID 1276 wrote to memory of 636	1276	Rpeyep.exe	29
PID 1276 wrote to memory of 636	1276	Rpeyep.exe	29
PID 636 wrote to memory of 560	636	Rpeyep.exe	30
PID 636 wrote to memory of 560	636	Rpeyep.exe	30
PID 636 wrote to memory of 560	636	Rpeyep.exe	30
PID 636 wrote to memory of 560	636	Rpeyep.exe	30
PID 560 wrote to memory of 1672	560	iexplore.exe	31
PID 560 wrote to memory of 1672	560	iexplore.exe	31
PID 560 wrote to memory of 1672	560	iexplore.exe	31
PID 560 wrote to memory of 1672	560	iexplore.exe	31
PID 1672 wrote to memory of 844	1672	IEXPLORE.EXE	33
PID 1672 wrote to memory of 844	1672	IEXPLORE.EXE	33
PID 1672 wrote to memory of 844	1672	IEXPLORE.EXE	33
PID 1672 wrote to memory of 844	1672	IEXPLORE.EXE	33
PID 636 wrote to memory of 844	636	Rpeyep.exe	33
PID 636 wrote to memory of 844	636	Rpeyep.exe	33

C:\Users\Admin\AppData\Local\Temp\d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe
"C:\Users\Admin\AppData\Local\Temp\d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1468
- C:\Users\Admin\AppData\Local\Temp\d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe
  "C:\Users\Admin\AppData\Local\Temp\d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1124
- - C:\Users\Admin\AppData\Roaming\Rpeyep.exe
    "C:\Users\Admin\AppData\Roaming\Rpeyep.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1276
  - - C:\Users\Admin\AppData\Roaming\Rpeyep.exe
      "C:\Users\Admin\AppData\Roaming\Rpeyep.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:636
    - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
        
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:560
      - C:\Program Files\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1672
        
        C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1672 CREDAT:275457 /prefetch:2
        7⤵
        Modifies Internet Explorer settings
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:844

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

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\67IZBZZU.txt

Filesize
603B

MD5
e7049a4ae82ca355f3857a9ce1c22993

SHA1
f727d91e407af50cab71253a18d7429357c4acf3

SHA256
7e46ff740e47a06cfe3aa1fb72cc9bab6e24116f87c858528d163ad08d9b9f29

SHA512
6b583122d6b0679f87955b312dc4d1a86edaca5e5bf62508526aaf5fd40f67d159635eb1ab1e7190ec0df264f0f042cb678fc74742eadd13ad322fe91fed8914

Download Submit
C:\Users\Admin\AppData\Roaming\Rpeyep.exe

Filesize
220KB

MD5
901a8d336b88c0917c995b07ce1c433d

SHA1
99aab204407cd7f515df8f961a7268cff74cd5f6

SHA256
d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c

SHA512
3d4c8457cda746eabdb0910713119aa50ea47a98c18591e9bc3d38972ae6f8af3a9df84d15fdce52e35e0a766f19b168eeab473b86eefaeb701dc3a21263c69d

Download Submit
C:\Users\Admin\AppData\Roaming\Rpeyep.exe

Filesize
220KB

MD5
901a8d336b88c0917c995b07ce1c433d

SHA1
99aab204407cd7f515df8f961a7268cff74cd5f6

SHA256
d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c

SHA512
3d4c8457cda746eabdb0910713119aa50ea47a98c18591e9bc3d38972ae6f8af3a9df84d15fdce52e35e0a766f19b168eeab473b86eefaeb701dc3a21263c69d

Download Submit
C:\Users\Admin\AppData\Roaming\Rpeyep.exe

Filesize
220KB

MD5
901a8d336b88c0917c995b07ce1c433d

SHA1
99aab204407cd7f515df8f961a7268cff74cd5f6

SHA256
d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c

SHA512
3d4c8457cda746eabdb0910713119aa50ea47a98c18591e9bc3d38972ae6f8af3a9df84d15fdce52e35e0a766f19b168eeab473b86eefaeb701dc3a21263c69d

Download Submit
\Users\Admin\AppData\Roaming\Rpeyep.exe

Filesize
220KB

MD5
901a8d336b88c0917c995b07ce1c433d

SHA1
99aab204407cd7f515df8f961a7268cff74cd5f6

SHA256
d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c

SHA512
3d4c8457cda746eabdb0910713119aa50ea47a98c18591e9bc3d38972ae6f8af3a9df84d15fdce52e35e0a766f19b168eeab473b86eefaeb701dc3a21263c69d

Download Submit
\Users\Admin\AppData\Roaming\Rpeyep.exe

Filesize
220KB

MD5
901a8d336b88c0917c995b07ce1c433d

SHA1
99aab204407cd7f515df8f961a7268cff74cd5f6

SHA256
d3757c4108d9f782914533859f777c2e2967c5bd95ef0ec364251a3e20b9be4c

SHA512
3d4c8457cda746eabdb0910713119aa50ea47a98c18591e9bc3d38972ae6f8af3a9df84d15fdce52e35e0a766f19b168eeab473b86eefaeb701dc3a21263c69d

Download Submit
memory/636-94-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/636-93-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1124-61-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1124-68-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1124-55-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1124-67-0x0000000076BA1000-0x0000000076BA3000-memory.dmp

Filesize
8KB

Download
memory/1124-74-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1124-57-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1124-59-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1124-54-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1124-63-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1124-69-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1276-89-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1276-75-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1468-66-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download