c18087af5de586664422c8b1844dee8d49cc935b27078cbb632d724a4f46771e

Analysis

max time kernel
152s
max time network
167s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2022, 15:49

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General

Target

c18087af5de586664422c8b1844dee8d49cc935b27078cbb632d724a4f46771e.exe
Size

198KB
MD5

7a62dd6af92d259fd11b681446b4ab1e
SHA1

7280c669158baa18c1ff2996d3402ba9e9216f52
SHA256

c18087af5de586664422c8b1844dee8d49cc935b27078cbb632d724a4f46771e
SHA512

0a101f45370bc8142379d2e331db994f73a1b25524fa738ebe2c27820a2353723b666725322e704f7bde624559591dcccb6979a35c4f8e79999b11c17ebfecf9
SSDEEP

3072:r7+mrh42ya4kcFoWZHlWzzXGOJlBpPlPlUHV2I+h+7dUchBpp:rZrh42xcTHlrMXRlPN+7dd

Score

8^/10

adware persistence stealer

Malware Config

Signatures

Sets file execution options in registry 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ctfmon.exe	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ctfmon.exe\Debugger = "C:\\Windows\\system32\\ctfmon_lr.exe"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\iexplore.exe\Debugger	c18087af5de586664422c8b1844dee8d49cc935b27078cbb632d724a4f46771e.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	c18087af5de586664422c8b1844dee8d49cc935b27078cbb632d724a4f46771e.exe

Loads dropped DLL 1 IoCs

pid	Process
3412	regsvr32.exe

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	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{73D7CCBD-6E7C-3016-BDF6-38227E28DB37}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{73D7CCBD-6E7C-3016-BDF6-38227E28DB37}\IExplore = "1"	regsvr32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\dq41573.dll	c18087af5de586664422c8b1844dee8d49cc935b27078cbb632d724a4f46771e.exe
File created	C:\Windows\SysWOW64\ctfmon_lr.exe	regsvr32.exe

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

System Information Discovery
T1082

Modifies registry class 41 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FE0A5A69-3FDC-3B21-9084-44308DF6C787}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FE0A5A69-3FDC-3B21-9084-44308DF6C787}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E9CE2C86-A7F3-3C1F-830F-216F0DE1B96C}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E9CE2C86-A7F3-3C1F-830F-216F0DE1B96C}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E9CE2C86-A7F3-3C1F-830F-216F0DE1B96C}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73D7CCBD-6E7C-3016-BDF6-38227E28DB37}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73D7CCBD-6E7C-3016-BDF6-38227E28DB37}\ProgID\ = "D.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E9CE2C86-A7F3-3C1F-830F-216F0DE1B96C}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E9CE2C86-A7F3-3C1F-830F-216F0DE1B96C}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E9CE2C86-A7F3-3C1F-830F-216F0DE1B96C}\ = "IDOMPeek"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D\ = "D"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73D7CCBD-6E7C-3016-BDF6-38227E28DB37}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73D7CCBD-6E7C-3016-BDF6-38227E28DB37}\InprocServer32\ = "C:\\Windows\\SysWow64\\dq41573.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73D7CCBD-6E7C-3016-BDF6-38227E28DB37}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FE0A5A69-3FDC-3B21-9084-44308DF6C787}\1.0\ = "LIB"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FE0A5A69-3FDC-3B21-9084-44308DF6C787}\1.0\0\win32\ = "C:\\Windows\\SysWow64\\dq41573.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E9CE2C86-A7F3-3C1F-830F-216F0DE1B96C}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E9CE2C86-A7F3-3C1F-830F-216F0DE1B96C}\TypeLib\ = "{FE0A5A69-3FDC-3B21-9084-44308DF6C787}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\ = "D"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D\CLSID\ = "{73D7CCBD-6E7C-3016-BDF6-38227E28DB37}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E9CE2C86-A7F3-3C1F-830F-216F0DE1B96C}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E9CE2C86-A7F3-3C1F-830F-216F0DE1B96C}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73D7CCBD-6E7C-3016-BDF6-38227E28DB37}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73D7CCBD-6E7C-3016-BDF6-38227E28DB37}\ = "D"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E9CE2C86-A7F3-3C1F-830F-216F0DE1B96C}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FE0A5A69-3FDC-3B21-9084-44308DF6C787}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E9CE2C86-A7F3-3C1F-830F-216F0DE1B96C}\ = "IDOMPeek"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E9CE2C86-A7F3-3C1F-830F-216F0DE1B96C}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1\CLSID\ = "{73D7CCBD-6E7C-3016-BDF6-38227E28DB37}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FE0A5A69-3FDC-3B21-9084-44308DF6C787}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FE0A5A69-3FDC-3B21-9084-44308DF6C787}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73D7CCBD-6E7C-3016-BDF6-38227E28DB37}\VersionIndependentProgID\ = "D"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FE0A5A69-3FDC-3B21-9084-44308DF6C787}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FE0A5A69-3FDC-3B21-9084-44308DF6C787}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FE0A5A69-3FDC-3B21-9084-44308DF6C787}\1.0\HELPDIR\ = "C:\\Windows\\SysWow64\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E9CE2C86-A7F3-3C1F-830F-216F0DE1B96C}\TypeLib\ = "{FE0A5A69-3FDC-3B21-9084-44308DF6C787}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\D.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{73D7CCBD-6E7C-3016-BDF6-38227E28DB37}\VersionIndependentProgID	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 3412	2992	c18087af5de586664422c8b1844dee8d49cc935b27078cbb632d724a4f46771e.exe	82
PID 2992 wrote to memory of 3412	2992	c18087af5de586664422c8b1844dee8d49cc935b27078cbb632d724a4f46771e.exe	82
PID 2992 wrote to memory of 3412	2992	c18087af5de586664422c8b1844dee8d49cc935b27078cbb632d724a4f46771e.exe	82

C:\Users\Admin\AppData\Local\Temp\c18087af5de586664422c8b1844dee8d49cc935b27078cbb632d724a4f46771e.exe
"C:\Users\Admin\AppData\Local\Temp\c18087af5de586664422c8b1844dee8d49cc935b27078cbb632d724a4f46771e.exe"
1⤵
- Sets file execution options in registry
- Checks computer location settings
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Windows\SysWOW64\regsvr32.exe
  "C:\Windows\System32\regsvr32.exe" /s C:\Windows\system32\dq41573.dll
  2⤵
  - Sets file execution options in registry
  - Loads dropped DLL
  - Installs/modifies Browser Helper Object
  - Drops file in System32 directory
  - Modifies registry class
  PID:3412

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Browser Extensions

T1176

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\dq41573.dll

Filesize
192KB

MD5
3895ec96f2c08784c68ade6eb2aa701c

SHA1
1d35e2fac98b4e378b670feba13782be438cd7cb

SHA256
74163d48300f528eb5464813e81887eb5ee39cfb440f15b6df587cabeb55392c

SHA512
e652e017acedf4c96661af1ed1bb7c6a6ad0d582e02eecbdf27803023915959df0f81a0b39ca5cf8a37764913903ecaee62a44906513c20f879026a736434f54

Download Submit
C:\Windows\SysWOW64\dq41573.dll

Filesize
192KB

MD5
3895ec96f2c08784c68ade6eb2aa701c

SHA1
1d35e2fac98b4e378b670feba13782be438cd7cb

SHA256
74163d48300f528eb5464813e81887eb5ee39cfb440f15b6df587cabeb55392c

SHA512
e652e017acedf4c96661af1ed1bb7c6a6ad0d582e02eecbdf27803023915959df0f81a0b39ca5cf8a37764913903ecaee62a44906513c20f879026a736434f54

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads