hxxps://vb2020[.]vblocalhost[.]com/uploads/VB2020-18[.]pdf

Analysis

max time kernel
150s
max time network
133s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
23-09-2022 22:55

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General

Target

https://vb2020.vblocalhost.com/uploads/VB2020-18.pdf

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 37 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000062e6ef0d45f4454ab79548c962d74cdf0000000002000000000010660000000100002000000022338e35d76482663682a64febed40e440edeb534f824ad2540923128d406259000000000e80000000020000200000009a713c8ff14fadd92a3dfc3eb1a5fc1eea25ede03f768aff724787221143cf3620000000bd7b245a7a959eb384fa06bf6ef7387b60d364f7d0e7003b654e26ed16a4da0a4000000069ece908143b60cbb1ba40d880163a344c21842005d3df65c4722bf6da70ce3e221e3ed010b668385843eefc9458228fe6a06851f936dfe41ed74ec48da0002b	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = c0063180b0cfd801	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{A5370D71-3BA3-11ED-A645-626C2AE6DC56} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "370745931"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar	IEXPLORE.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1884	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1884	iexplore.exe

Suspicious use of SetWindowsHookEx 9 IoCs

pid	Process
1884	iexplore.exe
1884	iexplore.exe
1964	IEXPLORE.EXE
1964	IEXPLORE.EXE
1964	IEXPLORE.EXE
1964	IEXPLORE.EXE
1964	IEXPLORE.EXE
1964	IEXPLORE.EXE
1964	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1884 wrote to memory of 1964	1884	iexplore.exe	28
PID 1884 wrote to memory of 1964	1884	iexplore.exe	28
PID 1884 wrote to memory of 1964	1884	iexplore.exe	28
PID 1884 wrote to memory of 1964	1884	iexplore.exe	28

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://vb2020.vblocalhost.com/uploads/VB2020-18.pdf
1⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1884
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1884 CREDAT:275457 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:1964

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\94308059B57B3142E455B38A6EB92015

Filesize
60KB

MD5
6c6a24456559f305308cb1fb6c5486b3

SHA1
3273ac27d78572f16c3316732b9756ebc22cb6ed

SHA256
efc3c579bd619ceab040c4b8c1b821b2d82c64fddd9e80a00ec0d7f6577ed973

SHA512
587d4a9175a6aa82cd8bb1c11ca6508f95cd218f76ac322ddbd1bc7146a0e25f8937ee426a6fb0fb0bb045cedb24d8c8a9edfe9f654112f293d8701220f726b4

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
f96fc723737592106294100a952c7c05

SHA1
a2d277640d4e8679968a92dfde0cd9faaeced88d

SHA256
4c62f6477f13bbfb387907fd62c14be35408d07277b6bffbe59f3cdc1fbf67e8

SHA512
dedaab2026288fcaf1bd1aaeefff26b0c27ab7ba6c2a4efdf35caa33e6db96b0c596cf7c301050675a29e2053cac2e28a53a646ebfd31a80ee509791bb03233b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\LH9AC65I.txt

Filesize
608B

MD5
4b564f003d5ab04b4e886eddfde2d185

SHA1
c9f8f2d734777c32a08866c8ecde6302a0d19bdd

SHA256
6877c302cc58b187ae989dcfe94f112e6fa0a7fcbde593c4efe42b17619b5f74

SHA512
e3081ac7c4798c663e5fb5fb14a92d48af66f5917acb3bb692e583937e87ca7445375d8bfe5892a28cdc22b52a3026845ec74d0e4a2ed3a2b114a2f2bcb5ed55

Download Submit