hxxps://cs[.]ffbtas[.]com

Analysis

max time kernel
60s
max time network
60s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
01/03/2023, 15:57

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General

Target

https://cs.ffbtas.com

Score

10^/10

Malware Config

Signatures

Suspicious use of NtCreateProcessExOtherParentProcess 2 IoCs

description	pid	Process	procid_target
PID 3624 created 2080	3624	iexplore.exe	86
PID 3624 created 2080	3624	iexplore.exe	86

Modifies Internet Explorer settings 1 TTPs 41 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000675316f82fdac74aa8f3bd7995064a9700000000020000000000106600000001000020000000a9e1a1f1fc429d29b968a27c86696c503eb0e53091d8ddfc01a4429433d3a9f8000000000e8000000002000020000000922fd9dd8a4c3e210c72ce157b09b63c9a0c0e64e4a5cd7f0f96631276dcde9f200000009e6495c9700c6cadbecf693d012f84347974f53a2cf21c4b5668d32f497809f040000000742159ab24ef97b647679ee83e99ab8d8915b2f75fd192bc1d37fd6eab344fd7b49f6eb4e36cd833efc20f8ea4f529f1ae4d9abff3abd7e3399209db03e60696	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 9058fbf45e4cd901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "4071007137"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31018078"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 502613f55e4cd901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4071007137"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31018078"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000675316f82fdac74aa8f3bd7995064a9700000000020000000000106600000001000020000000ddf48d7d6309d4252797945d5a6577dc89fe2f6d1495fe0e15e81d0d067314cd000000000e80000000020000200000002a30881498f93d2dfbfe59ce6b0797de4c68c8db2895261294ce6d0672ab8ee72000000063e46440607eeece2e6fd4eaddb8611cf73d01ce76de237cb3fba759c57fe45740000000f3019a3d3294a01371c9ab7fd07cc7710aa7f9fb066c50f28aed31e33463aca85ee9b36fccce8272047c79b2dbcce5c69c124e8ad7a7bb95db41ed54ebc1b7cf	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{1DF025ED-B852-11ED-ABF7-62507EA95193} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000675316f82fdac74aa8f3bd7995064a970000000002000000000010660000000100002000000053c982650f0fdd3a74373cb30744db884d549471fa6d010a67b407767128c3a0000000000e8000000002000020000000daba771fb5ce47a32993573529db5d91859227c6ccce2969778070ca6664747a20000000c280793a14622c28b110c511cfae74d74f0bdf5bb9a527599feef1e6f8717331400000003ea75b4aa5c7a9bb8639142fcb8433f4b54ff97fbe056f4d02137f0fc47faaff9c8383586107e170fac69e1771873e4e1493b96eb469655ea9d29d0b368d888a	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31018078"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4082613221"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 605885fa5e4cd901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3624	iexplore.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3624	iexplore.exe
3624	iexplore.exe
2080	IEXPLORE.EXE
2080	IEXPLORE.EXE
2080	IEXPLORE.EXE
2080	IEXPLORE.EXE
4908	IEXPLORE.EXE
4908	IEXPLORE.EXE
2504	IEXPLORE.EXE
2504	IEXPLORE.EXE
4908	IEXPLORE.EXE
4908	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3624 wrote to memory of 2080	3624	iexplore.exe	86
PID 3624 wrote to memory of 2080	3624	iexplore.exe	86
PID 3624 wrote to memory of 2080	3624	iexplore.exe	86
PID 3624 wrote to memory of 4908	3624	iexplore.exe	97
PID 3624 wrote to memory of 4908	3624	iexplore.exe	97
PID 3624 wrote to memory of 4908	3624	iexplore.exe	97
PID 3624 wrote to memory of 2504	3624	iexplore.exe	98
PID 3624 wrote to memory of 2504	3624	iexplore.exe	98
PID 3624 wrote to memory of 2504	3624	iexplore.exe	98

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://cs.ffbtas.com
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3624
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3624 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2080
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3624 CREDAT:17414 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:4908
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3624 CREDAT:214018 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2504

C:\Windows\SysWOW64\werfault.exe
werfault.exe /h /shared Global\0a288fed1e2843adb63f85bce6cc4ca2 /t 5044 /p 2080
1⤵
PID:4824

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\4HAJQ22Y\sale_form[1].js

Filesize
761B

MD5
64f809e06446647e192fce8d1ec34e09

SHA1
5b7ced07da42e205067afa88615317a277a4a82c

SHA256
f52cbd664986ad7ed6e71c448e2d31d1a16463e4d9b7bca0c6be278649ccc4f3

SHA512
5f61bbe241f6b8636a487e6601f08a48bffd62549291db83c1f05f90d26751841db43357d7fe500ffba1bc19a8ab63c6d4767ba901c7eded5d65a1b443b1dd78

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\LZ0AI98S\caf[1].js

Filesize
144KB

MD5
07cec42ed20509c084c2ddf49d6aa9ae

SHA1
900c1a6d8383528a345373edaa7562630e19f5ca

SHA256
05f584f4a8b499bce7b2080df0c3fb582e8f869f99440a37a834ad730c5e9415

SHA512
deaa05f4e4b83844b8a28eefaec4476d5db90a8593f4ac5bb0963619ebc7c7251d4cf6284c561b93e2c94eb3758a3a9108d4e860de9a5f42c8add4970cabd374

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\LZ0AI98S\css[1].css

Filesize
206B

MD5
8c57bae8366f02bcd8e3078c4df01fb3

SHA1
5650680e3b98d06b3ebbd7f0d5f0b70f77dc7dca

SHA256
26f4fe5ecada4ecdd659802120d6fa32e7b1675734aa4120d68a6d3fb5b55839

SHA512
9c42157e19d5087f2951cd1f4da80c79ab419eb0e8dc96c58675f7488bce38ac5f12a427d611a07cca3ecdd772cdc223579aac9c83648b118eb2a3f466e32993

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\S64KWKX9\IDANFG6H.htm

Filesize
19KB

MD5
0347b69a13bd4ef5a31e7ddf9745cac0

SHA1
bc708d0756fd3c8fa73b47569769edd4f4eb0c2a

SHA256
481db34cd6291fb5d0ccce6ce7b813ba1445933c8c3d6557e7ef98c31f674236

SHA512
c4291ecd14d082174a0e2c8f6d4af79d0c061f42b2c9231bfb8b9bacc3b6f65fc52ea7fea6a1ae10d39ffdf3aa4dfaeec956aaf7cc427c12212d3f86045023bb

Download Submit