hxxp://app[.]slack[.]com

General

Target

http://app.slack.com

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 20 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "386989688"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{05DD9581-CF60-11ED-B7D7-5E730FDCBF57} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-1013461898-3711306144-4198452673-1000\{74163DFB-B5E1-482B-829B-E4418AB49E19}	IEXPLORE.EXE

Suspicious use of AdjustPrivilegeToken 22 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3648	IEXPLORE.EXE
Token: SeCreatePagefilePrivilege	3648	IEXPLORE.EXE
Token: SeShutdownPrivilege	3648	IEXPLORE.EXE
Token: SeCreatePagefilePrivilege	3648	IEXPLORE.EXE
Token: SeShutdownPrivilege	3648	IEXPLORE.EXE
Token: SeCreatePagefilePrivilege	3648	IEXPLORE.EXE
Token: SeShutdownPrivilege	3648	IEXPLORE.EXE
Token: SeCreatePagefilePrivilege	3648	IEXPLORE.EXE
Token: SeShutdownPrivilege	3648	IEXPLORE.EXE
Token: SeCreatePagefilePrivilege	3648	IEXPLORE.EXE
Token: SeShutdownPrivilege	3648	IEXPLORE.EXE
Token: SeCreatePagefilePrivilege	3648	IEXPLORE.EXE
Token: SeShutdownPrivilege	3648	IEXPLORE.EXE
Token: SeCreatePagefilePrivilege	3648	IEXPLORE.EXE
Token: SeShutdownPrivilege	3648	IEXPLORE.EXE
Token: SeCreatePagefilePrivilege	3648	IEXPLORE.EXE
Token: SeShutdownPrivilege	3648	IEXPLORE.EXE
Token: SeCreatePagefilePrivilege	3648	IEXPLORE.EXE
Token: SeShutdownPrivilege	3648	IEXPLORE.EXE
Token: SeCreatePagefilePrivilege	3648	IEXPLORE.EXE
Token: SeShutdownPrivilege	3648	IEXPLORE.EXE
Token: SeCreatePagefilePrivilege	3648	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3336	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3336	iexplore.exe
3336	iexplore.exe
3648	IEXPLORE.EXE
3648	IEXPLORE.EXE
3648	IEXPLORE.EXE
3648	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3336 wrote to memory of 3648	3336	iexplore.exe	80
PID 3336 wrote to memory of 3648	3336	iexplore.exe	80
PID 3336 wrote to memory of 3648	3336	iexplore.exe	80

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" http://app.slack.com
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3336
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3336 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3648

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x44c 0x4bc
1⤵
PID:2900

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\82CB34DD3343FE727DF8890D352E0D8F

Filesize
7KB

MD5
dd50a5d6139e6d8b6992797ccd04818a

SHA1
7350c9c059d598c83af220ca6d30f1b13540cfa0

SHA256
b117851f48442b165516bc5b29d58ba0efac8b73ea78bfa676d43be87d9d5df3

SHA512
273265d2df03adf0284203a021f2f1f1d13d7b3e3154a7837d8112a27db591bda198f074ce9d2ca743c400a2c90b180b4f0be03fb950c8d342624a7590aab976

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\82CB34DD3343FE727DF8890D352E0D8F

Filesize
232B

MD5
3a68eb92bdc1226b04cefb90cf5beb3b

SHA1
b1ff8653162923c5875b8b7d38884e8541a5b1aa

SHA256
dbd1ad57173b7732f417746d805c5f2a5b659815b0c4c38985092b0bd0032abd

SHA512
87e3fcc056caa7a10deadbe0151199946d919fe35df4cbc2fe74b9cb1bfcd7bf15e6a736f56a2e533166584b4c96aafab0c3d119bddf35f6543b4f63ffef7839

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0P80TOLA\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit

Analysis

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