bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7

Analysis

max time kernel
152s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02-12-2022 22:25

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General

Target

bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe
Size

129KB
MD5

58e764f7fa9066c9eec521fa7db92f57
SHA1

13578991b07b0e53de52431fb75eb99350e67f66
SHA256

bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7
SHA512

63d4b1ecac68603602ffd9d8126b721bf5defb6177abaa828a54d99ec585e3a827652293f160a1127e1b18c5d91c6808f4e584bc02e050fb5e36049e1e95faab
SSDEEP

3072:jy4BK0IpOCTmMaenUY6N2VDGqoih77y7egP:e4DIpOCTmMaenG2VyqZh72B

Score

8^/10

adware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4928	snss.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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe

Drops startup file 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TM.lnk	snss.exe

Loads dropped DLL 1 IoCs

pid	Process
4560	Regsvr32.exe

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

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

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{01443AEC-0FD1-40fd-9C87-E93D1494C233}\NoExplorer = "1"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{01443AEC-0FD1-40fd-9C87-E93D1494C233}	Regsvr32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\csys.dat	snss.exe
File opened for modification	C:\Windows\SysWOW64\Thunder.dll	bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe
File created	C:\Windows\SysWOW64\sysini.ini	bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe
File opened for modification	C:\Windows\SysWOW64\sysini.ini	snss.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\snss.exe	bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe
File opened for modification	C:\Program Files (x86)\Internet Explorer\bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe	bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.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 46 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xlhelper\CLSID\ = "{01443AEC-0FD1-40fd-9C87-E93D1494C233}"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{01443AEC-0FD1-40fd-9C87-E93D1494C233}\VersionIndependentProgID	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{87CA3845-37FE-414C-81CF-E08A7D0F6779}	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{87CA3845-37FE-414C-81CF-E08A7D0F6779}\1.0	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xlhelper.1	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xlhelper.1\ = "xlhelper Class"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xlhelper.1\CLSID	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xlhelper	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{87CA3845-37FE-414C-81CF-E08A7D0F6779}\1.0\ = "Thunder 1.0 Type Library"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7C849754-C410-455A-842E-75DBCBD222B6}\ = "Ixlhelper"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{01443AEC-0FD1-40fd-9C87-E93D1494C233}\InprocServer32	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{87CA3845-37FE-414C-81CF-E08A7D0F6779}\1.0\0\win32\ = "C:\\Windows\\SysWow64\\Thunder.dll"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7C849754-C410-455A-842E-75DBCBD222B6}\ProxyStubClsid32	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7C849754-C410-455A-842E-75DBCBD222B6}\ = "Ixlhelper"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7C849754-C410-455A-842E-75DBCBD222B6}	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xlhelper\CLSID	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{01443AEC-0FD1-40fd-9C87-E93D1494C233}	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{01443AEC-0FD1-40fd-9C87-E93D1494C233}\Programmable	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{87CA3845-37FE-414C-81CF-E08A7D0F6779}\1.0\FLAGS\ = "0"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{87CA3845-37FE-414C-81CF-E08A7D0F6779}\1.0\HELPDIR\ = "C:\\Windows\\system32"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7C849754-C410-455A-842E-75DBCBD222B6}\TypeLib	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{01443AEC-0FD1-40fd-9C87-E93D1494C233}\ProgID	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{01443AEC-0FD1-40fd-9C87-E93D1494C233}\InprocServer32\ = "C:\\Windows\\SysWow64\\Thunder.dll"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{87CA3845-37FE-414C-81CF-E08A7D0F6779}\1.0\FLAGS	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{87CA3845-37FE-414C-81CF-E08A7D0F6779}\1.0\0\win32	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7C849754-C410-455A-842E-75DBCBD222B6}\ProxyStubClsid32	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7C849754-C410-455A-842E-75DBCBD222B6}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7C849754-C410-455A-842E-75DBCBD222B6}\TypeLib	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xlhelper.1\CLSID\ = "{01443AEC-0FD1-40fd-9C87-E93D1494C233}"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xlhelper\ = "xlhelper Class"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{01443AEC-0FD1-40fd-9C87-E93D1494C233}\TypeLib	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{87CA3845-37FE-414C-81CF-E08A7D0F6779}\1.0\0	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{01443AEC-0FD1-40fd-9C87-E93D1494C233}\VersionIndependentProgID\ = "Thunder.xlhelper"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{01443AEC-0FD1-40fd-9C87-E93D1494C233}\InprocServer32\ThreadingModel = "Apartment"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7C849754-C410-455A-842E-75DBCBD222B6}\TypeLib\ = "{87CA3845-37FE-414C-81CF-E08A7D0F6779}"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7C849754-C410-455A-842E-75DBCBD222B6}\TypeLib\Version = "1.0"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xlhelper\CurVer	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{87CA3845-37FE-414C-81CF-E08A7D0F6779}\1.0\HELPDIR	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7C849754-C410-455A-842E-75DBCBD222B6}\TypeLib\ = "{87CA3845-37FE-414C-81CF-E08A7D0F6779}"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7C849754-C410-455A-842E-75DBCBD222B6}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7C849754-C410-455A-842E-75DBCBD222B6}	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7C849754-C410-455A-842E-75DBCBD222B6}\TypeLib\Version = "1.0"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Thunder.xlhelper\CurVer\ = "Thunder.xlhelper.1"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{01443AEC-0FD1-40fd-9C87-E93D1494C233}\ = "xlhelper Class"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{01443AEC-0FD1-40fd-9C87-E93D1494C233}\ProgID\ = "Thunder.xlhelper.1"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{01443AEC-0FD1-40fd-9C87-E93D1494C233}\TypeLib\ = "{87CA3845-37FE-414C-81CF-E08A7D0F6779}"	Regsvr32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1676	bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe
4928	snss.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1676 wrote to memory of 4928	1676	bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe	82
PID 1676 wrote to memory of 4928	1676	bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe	82
PID 1676 wrote to memory of 4928	1676	bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe	82
PID 1676 wrote to memory of 4560	1676	bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe	83
PID 1676 wrote to memory of 4560	1676	bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe	83
PID 1676 wrote to memory of 4560	1676	bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe	83
PID 1676 wrote to memory of 5000	1676	bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe	87
PID 1676 wrote to memory of 5000	1676	bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe	87
PID 1676 wrote to memory of 5000	1676	bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe	87

C:\Users\Admin\AppData\Local\Temp\bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe
"C:\Users\Admin\AppData\Local\Temp\bee6cd2ae7802f88b3681ca54e888a2f242bfa44cb85848473eb31beabe051d7.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Program Files (x86)\snss.exe
  "C:\Program Files (x86)\snss.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Drops file in System32 directory
  - Suspicious use of SetWindowsHookEx
  PID:4928
- C:\Windows\SysWOW64\Regsvr32.exe
  Regsvr32.exe /s "C:\Windows\system32\Thunder.dll"
  2⤵
  - Loads dropped DLL
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:4560
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\123.bat" "
  2⤵
  PID:5000

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Browser Extensions

T1176

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

Replay Monitor

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Downloads

C:\Program Files (x86)\snss.exe

Filesize
41KB

MD5
4adf885cadefc467ae0a80d22ac39dde

SHA1
db68bda85b74c4481a0b2a8ca3caec537113b592

SHA256
357584d6d05f000bfc50842ebe43c73ad01c8e0d3089276157f284d2b6ed7b7f

SHA512
c69845030c8a74766ed29feadd849ea3bbdadf02c11b8e8304f751c01caf793ebbbf941dde155f38656c9c0c68d5209e1a88a6ea64855bf54e98d103b5eadf31

Download Submit
C:\Program Files (x86)\snss.exe

Filesize
41KB

MD5
4adf885cadefc467ae0a80d22ac39dde

SHA1
db68bda85b74c4481a0b2a8ca3caec537113b592

SHA256
357584d6d05f000bfc50842ebe43c73ad01c8e0d3089276157f284d2b6ed7b7f

SHA512
c69845030c8a74766ed29feadd849ea3bbdadf02c11b8e8304f751c01caf793ebbbf941dde155f38656c9c0c68d5209e1a88a6ea64855bf54e98d103b5eadf31

Download Submit
C:\Users\Admin\AppData\Local\Temp\123.bat

Filesize
318B

MD5
9099f156b19fd71eb3a6bea77c6713a8

SHA1
76b92f334b8f705bba2fc1114af4fbbf482c6799

SHA256
36868901aa90602f8517b10fc5f97b625b06c11226ebe62e4464d7cb81f09808

SHA512
8156fecb7ab380dcc3fb087ee9222df532020e9e824fa2dfd937098bae1b337dc60da5dba7c3330918c1efa2c8af66e73be6e46a32452bbf4c903ffbdcccc5d2

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

Filesize
32KB

MD5
a7caa79b09af67825cb17c5fb55d928e

SHA1
21ca5640c0c655f67839a7e78c2475fabd5f5ac4

SHA256
4edfb01c890866133f6f8f21d5a0eee4a290f9853e83b719bc8b506fcc7b5c07

SHA512
08aabcc3571ae8eaaede340e857f5597026c93e381abeb85d59835359876af88a9490d8e337e4243ea24a58bc4940797c0fec35c974fda9dbc40ce549e02884c

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

Filesize
32KB

MD5
a7caa79b09af67825cb17c5fb55d928e

SHA1
21ca5640c0c655f67839a7e78c2475fabd5f5ac4

SHA256
4edfb01c890866133f6f8f21d5a0eee4a290f9853e83b719bc8b506fcc7b5c07

SHA512
08aabcc3571ae8eaaede340e857f5597026c93e381abeb85d59835359876af88a9490d8e337e4243ea24a58bc4940797c0fec35c974fda9dbc40ce549e02884c

Download Submit
C:\Windows\SysWOW64\sysini.ini

Filesize
1KB

MD5
f29f9b2e040a39c3898c6f834ff38ccc

SHA1
2b188cd05813587d53fab5db47ae4d2e1a126008

SHA256
333582423f8f0c2bc8a22116e6805b3ab667c0ba3055138edc359408a097b012

SHA512
ef45f4c1a00598f30ad233a25dbbf478430ee70ca1a9d6e2f35435bc5c006fa70855ef68ec0f06dd0791f8987a7af157d759bc4d2a2705d5b4aed3958c02d9c7

Download Submit
memory/4560-140-0x0000000000000000-mapping.dmp

Download
memory/4928-134-0x0000000000000000-mapping.dmp

Download
memory/5000-143-0x0000000000000000-mapping.dmp

Download