cfe1db58d45cd01cf2362e48cd09c2f1a9d7a60b0ede7d6a7eb3c11bc33bfb1a

General

Target

08f5d1a05d860f1fffe51c04ff266f6c.exe
Size

24KB
MD5

08f5d1a05d860f1fffe51c04ff266f6c
SHA1

103d0d83cc61950abd9a165fb5c11e95c0128cf4
SHA256

cfe1db58d45cd01cf2362e48cd09c2f1a9d7a60b0ede7d6a7eb3c11bc33bfb1a
SHA512

6c10806f745238ed3d2373849ba9216116cc3a85e0f41a092ee616a1b4e93e3fa37140259ff53e2e1d4807f7b8efb981201acb3248b9729d7c7d2415c43812f4
SSDEEP

768:UbygN8hKoVctW0c+LY2U3XcxyyHTC0epVUtmg:9cqrVio0Ydjyr13

Score

8^/10

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	08f5d1a05d860f1fffe51c04ff266f6c.exe

Deletes itself 1 IoCs

pid	Process
2516	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
2368	08f5d1a05d860f1fffe51c04ff266f6c.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{C9770FAA-D669-44F7-ABDF-5ADE7CB31788}	08f5d1a05d860f1fffe51c04ff266f6c.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{C9770FAA-D669-44F7-ABDF-5ADE7CB31788}	08f5d1a05d860f1fffe51c04ff266f6c.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{AAB97357-B976-474B-A1B1-778AD8608036}	08f5d1a05d860f1fffe51c04ff266f6c.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\kcna.dll	08f5d1a05d860f1fffe51c04ff266f6c.exe
File opened for modification	C:\Windows\SysWow64\kcna.dll	08f5d1a05d860f1fffe51c04ff266f6c.exe
File created	C:\Windows\SysWOW64\ms.dll	08f5d1a05d860f1fffe51c04ff266f6c.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\hosts	08f5d1a05d860f1fffe51c04ff266f6c.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 16 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Search\SearchAssistant = "file://C:\\Users\\Admin\\AppData\\Local\\Temp\\sp.html"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\HOMEOldSP = "about:blank"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main\Use Custom Search URL = "1"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\Use Search Asst = "no"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Search\SearchAssistant = "file://C:\\Users\\Admin\\AppData\\Local\\Temp\\sp.html"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\Search Page = "file://C:\\Users\\Admin\\AppData\\Local\\Temp\\sp.html"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\Search	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main\Search Bar = "file://C:\\Users\\Admin\\AppData\\Local\\Temp\\sp.html"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main\Use Search Asst = "no"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\Search Bar = "file://C:\\Users\\Admin\\AppData\\Local\\Temp\\sp.html"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\Main	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\Use Custom Search URL = "1"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main\HOMEOldSP = "about:blank"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main\Search Page = "file://C:\\Users\\Admin\\AppData\\Local\\Temp\\sp.html"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Search	08f5d1a05d860f1fffe51c04ff266f6c.exe

Modifies Internet Explorer start page 1 TTPs 2 IoCs

stealer

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main\Start Page = "about:blank"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\Start Page = "about:blank"	08f5d1a05d860f1fffe51c04ff266f6c.exe

Modifies registry class 18 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B16C29B7-EADD-4CF7-BEE4-9F266BA9A1A7}	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B16C29B7-EADD-4CF7-BEE4-9F266BA9A1A7}\InProcServer32\ = "C:\\Windows\\SysWow64\\kcna.dll"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PROTOCOLS\Filter\text/plain	08f5d1a05d860f1fffe51c04ff266f6c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AAB97357-B976-474B-A1B1-778AD8608036}\InProcServer32	08f5d1a05d860f1fffe51c04ff266f6c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AAB97357-B976-474B-A1B1-778AD8608036}	08f5d1a05d860f1fffe51c04ff266f6c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	08f5d1a05d860f1fffe51c04ff266f6c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PROTOCOLS\Filter\text/html	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PROTOCOLS\Filter\text/html\CLSID = "{B16C29B7-EADD-4CF7-BEE4-9F266BA9A1A7}"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PROTOCOLS\Filter\text/plain\CLSID = "{B16C29B7-EADD-4CF7-BEE4-9F266BA9A1A7}"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C9770FAA-D669-44F7-ABDF-5ADE7CB31788}	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AAB97357-B976-474B-A1B1-778AD8608036}\InProcServer32\ = "C:\\Windows\\SysWow64\\kcna.dll"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B16C29B7-EADD-4CF7-BEE4-9F266BA9A1A7}\InProcServer32\ThreadingModel = "Apartment"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C9770FAA-D669-44F7-ABDF-5ADE7CB31788}\InProcServer32\ = "C:\\Windows\\SysWow64\\kcna.dll"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	08f5d1a05d860f1fffe51c04ff266f6c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C9770FAA-D669-44F7-ABDF-5ADE7CB31788}\InProcServer32	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C9770FAA-D669-44F7-ABDF-5ADE7CB31788}\InProcServer32\ThreadingModel = "Apartment"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AAB97357-B976-474B-A1B1-778AD8608036}\InProcServer32\ThreadingModel = "Apartment"	08f5d1a05d860f1fffe51c04ff266f6c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B16C29B7-EADD-4CF7-BEE4-9F266BA9A1A7}\InProcServer32	08f5d1a05d860f1fffe51c04ff266f6c.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2516	2368	08f5d1a05d860f1fffe51c04ff266f6c.exe	31
PID 2368 wrote to memory of 2516	2368	08f5d1a05d860f1fffe51c04ff266f6c.exe	31
PID 2368 wrote to memory of 2516	2368	08f5d1a05d860f1fffe51c04ff266f6c.exe	31
PID 2368 wrote to memory of 2516	2368	08f5d1a05d860f1fffe51c04ff266f6c.exe	31

C:\Users\Admin\AppData\Local\Temp\08f5d1a05d860f1fffe51c04ff266f6c.exe
"C:\Users\Admin\AppData\Local\Temp\08f5d1a05d860f1fffe51c04ff266f6c.exe"
1⤵
- Drops file in Drivers directory
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Modifies Internet Explorer start page
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c C:\Users\Admin\AppData\Local\Temp\lkfj.bat "C:\Users\Admin\AppData\Local\Temp\08f5d1a05d860f1fffe51c04ff266f6c.exe"
  2⤵
  - Deletes itself
  PID:2516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\lkfj.bat

Filesize
70B

MD5
677931564938373367422e56cdf23934

SHA1
fb077020992d9fa49a901d3b64c3d9ce5bb88b35

SHA256
2d8efe1526fa203539bc77da8570b4cb38d5a63836a76d2379b7b506d0a67ee0

SHA512
808e177716911a5b975449b55df4fe1fc97cdb929be621fe541a7dfe7dce3362039214fe1ab4760c4d67aafe8a12308d04e5a40dc028b848c154f3e3f2d120ba

Download Submit
\Windows\SysWOW64\kcna.dll

Filesize
31KB

MD5
00d4bd9ccaaa70133eaaac0c1fc31979

SHA1
577fcaf44328e2a585822171c6321db5f0901341

SHA256
4a24d6ae5b816e2e2502b805f1d19bac857d67a64911acee4a211c864168620b

SHA512
8a79c36ed3bd5eca6bbc53c46b43189702acfc69743e9f1e4b849d08940d34eef1a0d00b354da7252a8e877e04716ceed42a6e0c2237044c2a836b0afcab742c

Download Submit
memory/2368-4-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/2368-11-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2368-16-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads