dc0827befcb546f241a767b83efa697a57eff75a2b376e36a2ac166c58a64508

General

Target

dc0827befcb546f241a767b83efa697a57eff75a2b376e36a2ac166c58a64508.exe
Size

154KB
MD5

dff4b1e26c72c873d0088c22cbcc884f
SHA1

0b82100e3736ddfcecbf12feaa7baa38aa042444
SHA256

dc0827befcb546f241a767b83efa697a57eff75a2b376e36a2ac166c58a64508
SHA512

21d7fa84d071d61161e80579cfc73e79bfcf133371a82cdafe0641569e9f5662d0ff991fefa83d5f994feabe6e3f7d8eb2ffb4b55ee445a908f51224077216ed
SSDEEP

3072:8TRwpQuBwEkJmrUSg+cbCS6Q3esw21WpIdpwQjE16p7ntW72StNbDJvUaH:8WJ/kA/cj6Wesd1Wp6wQjtW1

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 5 IoCs

pid	Process
620	dc0827befcb546f241a767b83efa697a57eff75a2b376e36a2ac166c58a64508.exe
1268	rundll32.exe
1268	rundll32.exe
1268	rundll32.exe
1268	rundll32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tatcp = "rundll32.exe \"C:\\Users\\Admin\\AppData\\Roaming\\tatcp.dll\",HrIStreamWToBSTR"	dc0827befcb546f241a767b83efa697a57eff75a2b376e36a2ac166c58a64508.exe

Modifies Internet Explorer settings 1 TTPs 22 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\Recovery\AdminActive	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\Toolbar\WebBrowser	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\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{120139A1-7513-11ED-BE8B-FAA138970F28} = "0"	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\InternetRegistry	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\LowRegistry\DOMStorage	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\PageSetup	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\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IntelliForms	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
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1504	iexplore.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1504	iexplore.exe
1504	iexplore.exe
1536	IEXPLORE.EXE
1536	IEXPLORE.EXE
620	dc0827befcb546f241a767b83efa697a57eff75a2b376e36a2ac166c58a64508.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1504 wrote to memory of 1536	1504	iexplore.exe	29
PID 1504 wrote to memory of 1536	1504	iexplore.exe	29
PID 1504 wrote to memory of 1536	1504	iexplore.exe	29
PID 1504 wrote to memory of 1536	1504	iexplore.exe	29
PID 620 wrote to memory of 1268	620	dc0827befcb546f241a767b83efa697a57eff75a2b376e36a2ac166c58a64508.exe	30
PID 620 wrote to memory of 1268	620	dc0827befcb546f241a767b83efa697a57eff75a2b376e36a2ac166c58a64508.exe	30
PID 620 wrote to memory of 1268	620	dc0827befcb546f241a767b83efa697a57eff75a2b376e36a2ac166c58a64508.exe	30
PID 620 wrote to memory of 1268	620	dc0827befcb546f241a767b83efa697a57eff75a2b376e36a2ac166c58a64508.exe	30
PID 620 wrote to memory of 1268	620	dc0827befcb546f241a767b83efa697a57eff75a2b376e36a2ac166c58a64508.exe	30
PID 620 wrote to memory of 1268	620	dc0827befcb546f241a767b83efa697a57eff75a2b376e36a2ac166c58a64508.exe	30
PID 620 wrote to memory of 1268	620	dc0827befcb546f241a767b83efa697a57eff75a2b376e36a2ac166c58a64508.exe	30

C:\Users\Admin\AppData\Local\Temp\dc0827befcb546f241a767b83efa697a57eff75a2b376e36a2ac166c58a64508.exe
"C:\Users\Admin\AppData\Local\Temp\dc0827befcb546f241a767b83efa697a57eff75a2b376e36a2ac166c58a64508.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:620
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\tatcp.dll",HrGetStreamSize
  2⤵
  - Loads dropped DLL
  PID:1268

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1504
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1504 CREDAT:275457 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:1536

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\tatcp.dll

Filesize
154KB

MD5
80bf7a55132272c542b0f74ea0666616

SHA1
9223dbb2ab6c2b52450ed820925e6b705551ec64

SHA256
41fa6ab7067d886a835c1adecd66078fd9d8b3418a7e0d890b1c77e059b87030

SHA512
a47bef086fbb43dd91e2f95abe2228a0947bd51460b435b0d5e7077ba9082478e341f7fc14bb55f6609600a81f87197687d484d8cb35c7980330d3e645d2fbaa

Download Submit
\Users\Admin\AppData\Roaming\tatcp.dll

Filesize
154KB

MD5
80bf7a55132272c542b0f74ea0666616

SHA1
9223dbb2ab6c2b52450ed820925e6b705551ec64

SHA256
41fa6ab7067d886a835c1adecd66078fd9d8b3418a7e0d890b1c77e059b87030

SHA512
a47bef086fbb43dd91e2f95abe2228a0947bd51460b435b0d5e7077ba9082478e341f7fc14bb55f6609600a81f87197687d484d8cb35c7980330d3e645d2fbaa

Download Submit
\Users\Admin\AppData\Roaming\tatcp.dll

Filesize
154KB

MD5
80bf7a55132272c542b0f74ea0666616

SHA1
9223dbb2ab6c2b52450ed820925e6b705551ec64

SHA256
41fa6ab7067d886a835c1adecd66078fd9d8b3418a7e0d890b1c77e059b87030

SHA512
a47bef086fbb43dd91e2f95abe2228a0947bd51460b435b0d5e7077ba9082478e341f7fc14bb55f6609600a81f87197687d484d8cb35c7980330d3e645d2fbaa

Download Submit
\Users\Admin\AppData\Roaming\tatcp.dll

Filesize
154KB

MD5
80bf7a55132272c542b0f74ea0666616

SHA1
9223dbb2ab6c2b52450ed820925e6b705551ec64

SHA256
41fa6ab7067d886a835c1adecd66078fd9d8b3418a7e0d890b1c77e059b87030

SHA512
a47bef086fbb43dd91e2f95abe2228a0947bd51460b435b0d5e7077ba9082478e341f7fc14bb55f6609600a81f87197687d484d8cb35c7980330d3e645d2fbaa

Download Submit
\Users\Admin\AppData\Roaming\tatcp.dll

Filesize
154KB

MD5
80bf7a55132272c542b0f74ea0666616

SHA1
9223dbb2ab6c2b52450ed820925e6b705551ec64

SHA256
41fa6ab7067d886a835c1adecd66078fd9d8b3418a7e0d890b1c77e059b87030

SHA512
a47bef086fbb43dd91e2f95abe2228a0947bd51460b435b0d5e7077ba9082478e341f7fc14bb55f6609600a81f87197687d484d8cb35c7980330d3e645d2fbaa

Download Submit
\Users\Admin\AppData\Roaming\tatcp.dll

Filesize
154KB

MD5
80bf7a55132272c542b0f74ea0666616

SHA1
9223dbb2ab6c2b52450ed820925e6b705551ec64

SHA256
41fa6ab7067d886a835c1adecd66078fd9d8b3418a7e0d890b1c77e059b87030

SHA512
a47bef086fbb43dd91e2f95abe2228a0947bd51460b435b0d5e7077ba9082478e341f7fc14bb55f6609600a81f87197687d484d8cb35c7980330d3e645d2fbaa

Download Submit
memory/620-60-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/620-67-0x0000000001F80000-0x0000000001F93000-memory.dmp

Filesize
76KB

Download
memory/620-63-0x00000000022C0000-0x00000000022E8000-memory.dmp

Filesize
160KB

Download
memory/620-54-0x0000000075711000-0x0000000075713000-memory.dmp

Filesize
8KB

Download
memory/620-56-0x0000000000250000-0x0000000000278000-memory.dmp

Filesize
160KB

Download
memory/620-55-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1268-76-0x00000000006A0000-0x00000000006C8000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads