1a7ff8b17d703d84698d653da808832d3d81b946c5ed606f0e3d4676c1bd99d6

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
25/08/2024, 10:18

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General

Target

$R0.dll
Size

40KB
MD5

09a21e6c8a44920e08fa2e30501db9dd
SHA1

c7d02fd58b831a1147aaa87308880b7ce53af29e
SHA256

ffdb14acce6181dc7519f8cea060596ce71eb0a338d9d8117c28348d8179b544
SHA512

1589743ea0201ce3e696f82424dd03c03352e536c2dc118a58ef061cd2de9b231d35b8c9cb4a4a478b525a882330562b93ac00fd620597776d7c5eeaf70e67d5
SSDEEP

384:1TrZ0Mflu6QOqtaOHbrZOx0z0WNus8+sKVW8RsXaR9JBwnVgYb+75f6HTlsbr+3B:1pT1cHbrZO+Tr8+VVxHjJBwnaPI7U

Score

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 51 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B77613E-D351-418C-887D-D9D2A70993E9}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{786A3054-3CBB-4B95-9084-E8D79AE7DBBA}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{786A3054-3CBB-4B95-9084-E8D79AE7DBBA}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{786A3054-3CBB-4B95-9084-E8D79AE7DBBA}\TypeLib\ = "{2B77613E-D351-418C-887D-D9D2A70993E9}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudFun.VersionFun.1\ = "VersionFun Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudFun.VersionFun\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B77613E-D351-418C-887D-D9D2A70993E9}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B77613E-D351-418C-887D-D9D2A70993E9}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudFun.VersionFun\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{05EF1822-FC58-4578-B979-1F5863867DD7}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{05EF1822-FC58-4578-B979-1F5863867DD7}\Implemented Categories\{7DD95802-9882-11CF-9FA9-00AA006C42C4}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{786A3054-3CBB-4B95-9084-E8D79AE7DBBA}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudFun.VersionFun\ = "VersionFun Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{05EF1822-FC58-4578-B979-1F5863867DD7}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{786A3054-3CBB-4B95-9084-E8D79AE7DBBA}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{05EF1822-FC58-4578-B979-1F5863867DD7}\ProgID\ = "CloudFun.VersionFun.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{786A3054-3CBB-4B95-9084-E8D79AE7DBBA}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudFun.VersionFun.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{05EF1822-FC58-4578-B979-1F5863867DD7}\Implemented Categories\{7DD95801-9882-11CF-9FA9-00AA006C42C4}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{786A3054-3CBB-4B95-9084-E8D79AE7DBBA}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{786A3054-3CBB-4B95-9084-E8D79AE7DBBA}\ = "IVersionFun"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudFun.VersionFun\CLSID\ = "{05EF1822-FC58-4578-B979-1F5863867DD7}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{05EF1822-FC58-4578-B979-1F5863867DD7}\VersionIndependentProgID\ = "CloudFun.VersionFun"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B77613E-D351-418C-887D-D9D2A70993E9}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{786A3054-3CBB-4B95-9084-E8D79AE7DBBA}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudFun.VersionFun.1\CLSID\ = "{05EF1822-FC58-4578-B979-1F5863867DD7}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B77613E-D351-418C-887D-D9D2A70993E9}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{05EF1822-FC58-4578-B979-1F5863867DD7}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$R0.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B77613E-D351-418C-887D-D9D2A70993E9}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$R0.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{05EF1822-FC58-4578-B979-1F5863867DD7}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B77613E-D351-418C-887D-D9D2A70993E9}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudFun.VersionFun	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B77613E-D351-418C-887D-D9D2A70993E9}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{05EF1822-FC58-4578-B979-1F5863867DD7}\TypeLib\ = "{2B77613E-D351-418C-887D-D9D2A70993E9}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{786A3054-3CBB-4B95-9084-E8D79AE7DBBA}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudFun.VersionFun.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{05EF1822-FC58-4578-B979-1F5863867DD7}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B77613E-D351-418C-887D-D9D2A70993E9}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CloudFun.VersionFun\CurVer\ = "CloudFun.VersionFun.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{05EF1822-FC58-4578-B979-1F5863867DD7}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{786A3054-3CBB-4B95-9084-E8D79AE7DBBA}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{786A3054-3CBB-4B95-9084-E8D79AE7DBBA}\ = "IVersionFun"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{786A3054-3CBB-4B95-9084-E8D79AE7DBBA}\TypeLib\ = "{2B77613E-D351-418C-887D-D9D2A70993E9}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{786A3054-3CBB-4B95-9084-E8D79AE7DBBA}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{05EF1822-FC58-4578-B979-1F5863867DD7}\Implemented Categories	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{05EF1822-FC58-4578-B979-1F5863867DD7}\ = "VersionFun Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{05EF1822-FC58-4578-B979-1F5863867DD7}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{05EF1822-FC58-4578-B979-1F5863867DD7}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{2B77613E-D351-418C-887D-D9D2A70993E9}\1.0\ = "CloudFun 1.0 Type Library"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 3064	2648	regsvr32.exe	30
PID 2648 wrote to memory of 3064	2648	regsvr32.exe	30
PID 2648 wrote to memory of 3064	2648	regsvr32.exe	30
PID 2648 wrote to memory of 3064	2648	regsvr32.exe	30
PID 2648 wrote to memory of 3064	2648	regsvr32.exe	30
PID 2648 wrote to memory of 3064	2648	regsvr32.exe	30
PID 2648 wrote to memory of 3064	2648	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$R0.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$R0.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:3064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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