hxxp://bakertilly[.]com[.]kh/email-disclaimer

Analysis

max time kernel
292s
max time network
295s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
16/06/2023, 09:16

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General

Target

http://bakertilly.com.kh/email-disclaimer

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 39 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	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
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 30cb484e33a0d901	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\LastCheckForUpdateLowDateTime = "1206989181"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000cabcd19989c8a547bba572c5bed59f5b000000000200000000001066000000010000200000009adf8e381e5ced96257346769324b67ed8cbf4822048aa383b6775784c489859000000000e80000000020000200000000cd892b98e5727c82472c210825b21d6d94ecbdf05eb5c351666baf1bef6cbd820000000a8cc0be2445a0648726715fd6ffec2def385284317d8f4202066274ed588a3394000000078eb60a1146e004aa307e945632069baa96c4d8d3fc72c7e0f9b573d76eede129ca09f5e3fffc0d0298b5466be950b7b3848204bd3ab0c79786adcb609548266	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{7351DB4A-0C26-11EE-ABF7-6A765FEA1DF2} = "0"	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\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1217147250"	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\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = f009634e33a0d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	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\LastUpdateLowDateTime = "1206989181"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31039539"	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\VersionManager\LastCheckForUpdateHighDateTime = "31039539"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "393671953"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\IESettingSync	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 (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 (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31039539"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000cabcd19989c8a547bba572c5bed59f5b00000000020000000000106600000001000020000000bd75f6283012dca7341a85057763349dffd82369d5435ec7cc105b83a01cc515000000000e80000000020000200000004c52185a977f800ce51b223f9c47da801a9b56c045803e9717ff08afff8d998420000000207f7d76dcfe87b2a54f736f0adb88b18800ce56479a24e65e76a9c6355ce60f40000000a73cd952a6aa0162260d4f1b69bbcb19fcc8d4566412917ae5bbe6e81d5f5e6c850837082b7793a5b9fcff29e706c380dfe2be9f358aafdc87e50f960844cf1c	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4452	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4452	iexplore.exe
4452	iexplore.exe
5060	IEXPLORE.EXE
5060	IEXPLORE.EXE
5060	IEXPLORE.EXE
5060	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4452 wrote to memory of 5060	4452	iexplore.exe	83
PID 4452 wrote to memory of 5060	4452	iexplore.exe	83
PID 4452 wrote to memory of 5060	4452	iexplore.exe	83

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" http://bakertilly.com.kh/email-disclaimer
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4452
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4452 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:5060

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\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
82b6e24e9d7fe90d647b5b81389401b3

SHA1
51f3af35027bc77cf6912e6dd3d6cc3289c19c55

SHA256
3483fda8fbc0fa1d77780c1c46e372c3bc834a45b19d149d0dbc8c2fba26322d

SHA512
3454b31c7111bdc0cf6ec133ef1dd6755abf0b006f77341b904fbb8ad25a81b548accc510f1590c2a3955f5bf86f8b023404e1acb9d2b028bb29067848936f7d

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
e52b7d800dcd8d0bfc9cc5f430eba747

SHA1
4efbb78c22b1e9b7b73a7c21230ab4a5b4ad6f53

SHA256
1f007fe247072ce79dd752d65a86638342785e281849a09e1e0d9088a4aed7b5

SHA512
5e90ae46264322b8c4acfc0440dc0627addb19f1af0b1646cc1bcff7fd614063f2f59342ea8554a6ae33b43163a681562814f4fc77d32798fad1df03fc795add

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\dcpq11e\imagestore.dat

Filesize
4KB

MD5
d91c9b863e787bb14b09e5a1d581edb6

SHA1
fe45ecb44c61fd4f4ce68924fe4af361d43e2bd4

SHA256
de3330237de3e1cf40cbea57dbbe69d7726447330d706359f2acf938c9c6f888

SHA512
191f7540a88a959bd6dfeeaa0fc80b68f17a7880e03a1a0bac276a737149dd24e034f7fe161b31395332aa231237c1823b03779cd03e0af520ac3d8ad90c9006

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\5AN3FZ97\masonry.pkgd.min[1].js

Filesize
23KB

MD5
520e46df77727aaf3d5e799ef241be02

SHA1
d20252cf76c3be8af37a8415d13ad368c762b4d8

SHA256
367d6afdfc741fb48d2d9310e47c3924b693459a74c882c0fc545ec5ed7d55d2

SHA512
25195cbd26405d3f3ee5241002f9255c626ec574e8bb2abca0831a60445941ab01f120431d96946de012b095a9934514adff3d0cfdff69e7cf3eb94c475875c9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\5AN3FZ97\w-logo-blue-white-bg[1].png

Filesize
4KB

MD5
000bf649cc8f6bf27cfb04d1bcdcd3c7

SHA1
d73d2f6d74ec6cdcbae07955592962e77d8ae814

SHA256
6bdb369337ac2496761c6f063bffea0aa6a91d4662279c399071a468251f51f0

SHA512
73d2ea5ffc572c1ae73f37f8f0ff25e945afee8e077b6ee42ce969e575cdc2d8444f90848ea1cb4d1c9ee4bd725aee2b4576afc25f17d7295a90e1cbfe6edfd5

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\S64KWKX9\imagesloaded.pkgd.min[2].js

Filesize
5KB

MD5
e2c1a80b99251b7b94726b41312fb160

SHA1
6d3e11174e22668e69df236e5c4542168f7cbfec

SHA256
96abf166b3cbb5f7df525d86fdeeeccea4af3c120b19bc26b0613530a94e8b44

SHA512
4b93d9f46c4964ed7ab53f6bdd6269fd269f9f7d5ebbcb96af382531a8434f876c9a0a96a27458f60ae4de3fb7b5fb8fafd58936c7e8a0e47b1a2ec72f95b68f

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\S64KWKX9\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit