hxxp://subsworker[.]bid/?endpoint=f-wWo-Ns0Mo[:]APA91bHuxR6aJbhb01VCPaa1Dr1IrV7NGQoZ3iCuIUK_l-c5XzxcGGUPkd5f6FI9od9xlgrOw58RRRZNkbhKkL5HZXGT378hh5FdIl-oV94EvlZujsMLfqSV2GkZMYwss7PTfIyd6JFG&ver=2[.]

Analysis

max time kernel
114s
max time network
139s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
11/10/2022, 09:13

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General

Target

http://subsworker.bid/?endpoint=f-wWo-Ns0Mo:APA91bHuxR6aJbhb01VCPaa1Dr1IrV7NGQoZ3iCuIUK_l-c5XzxcGGUPkd5f6FI9od9xlgrOw58RRRZNkbhKkL5HZXGT378hh5FdIl-oV94EvlZujsMLfqSV2GkZMYwss7PTfIyd6JFG&ver=2.

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies Internet Explorer Phishing Filter 1 TTPs 2 IoCs

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\PhishingFilter	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\PhishingFilter\ClientSupported_MigrationTime = 90fbefbb51ddd801	iexplore.exe

Modifies Internet Explorer settings 1 TTPs 36 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{F6E6D481-4944-11ED-9FD0-D6EA6736E294} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 00fa96ce51ddd801	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000048ca5449a4d21846ba8a995ea0abd35a0000000002000000000010660000000100002000000080267f2ec5dcbde997de0caa86334e6c6c1f7d20dea5f80be426461cef8e7839000000000e8000000002000020000000d62e2a7c57e6b4104a3348acab4ea9b05e5c6685de47f5828f2c6fd35f3917a520000000509a9bd928997729d76580085d2df0a4bd3d6aa82bcef826770a10140f05699e4000000093de71c99d359f425dcc9aed3abdd68d2db2f91c1ecbc1f8dece79af5e114431a0cd1d28d62c3aa9cac86d7de46d82542b992d0a42a663f4732cd53baccf59c6	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "372244581"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1200	iexplore.exe
1200	iexplore.exe
1200	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1200	iexplore.exe
1200	iexplore.exe
1464	IEXPLORE.EXE
1464	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1200 wrote to memory of 1464	1200	iexplore.exe	28
PID 1200 wrote to memory of 1464	1200	iexplore.exe	28
PID 1200 wrote to memory of 1464	1200	iexplore.exe	28
PID 1200 wrote to memory of 1464	1200	iexplore.exe	28
PID 1200 wrote to memory of 992	1200	iexplore.exe	30
PID 1200 wrote to memory of 992	1200	iexplore.exe	30
PID 1200 wrote to memory of 992	1200	iexplore.exe	30

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" http://subsworker.bid/?endpoint=f-wWo-Ns0Mo:APA91bHuxR6aJbhb01VCPaa1Dr1IrV7NGQoZ3iCuIUK_l-c5XzxcGGUPkd5f6FI9od9xlgrOw58RRRZNkbhKkL5HZXGT378hh5FdIl-oV94EvlZujsMLfqSV2GkZMYwss7PTfIyd6JFG&ver=2.
1⤵
- Modifies Internet Explorer Phishing Filter
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1200 CREDAT:275457 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:1464
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\PXJIW9HP\V2PRK7WX.json
  2⤵
  - Modifies registry class
  PID:992

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
60KB

MD5
d15aaa7c9be910a9898260767e2490e1

SHA1
2090c53f8d9fc3fbdbafd3a1e4dc25520eb74388

SHA256
f8ebaaf487cba0c81a17c8cd680bdd2dd8e90d2114ecc54844cffc0cc647848e

SHA512
7e1c1a683914b961b5cc2fe5e4ae288b60bab43bfaa21ce4972772aa0589615c19f57e672e1d93e50a7ed7b76fbd2f1b421089dcaed277120b93f8e91b18af94

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

Filesize
342B

MD5
a93368dbcae8e28d1f5d2460ab1da700

SHA1
cce3fe57c22e6d6d890f2cf1711081b316a48fbd

SHA256
1366110d0aff4e3ba794c09613160face9e0f902f0bb6151139f338a51596001

SHA512
129970ba71f273364beb3f1381c307f5ac8dd1e871b70022dc3b2e50afe2ca16b561925411a4d55d70cc2701612f24546aee9a4436a44d3777335653355f7098

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\PXJIW9HP\V2PRK7WX.json.0wx1y8s.partial

Filesize
1KB

MD5
fdc66a7d596c97614c16b8c26192f2d5

SHA1
e96a355203a1b40c6568f0aa3f6cefe9b26f2a3f

SHA256
82a53cb4524915433bf33b4d0bf8c3d312677fac0dde66ed1e29fed2e230aa5b

SHA512
1f993854d82cd903956e5d4f6cd583857fcd514453c0ee4811d35f852b870b09c01e41e12100bdc61375bd223f4ed76ca4f16cf8f37825c6ffab3575f9f63618

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\7BMDCFZP.txt

Filesize
608B

MD5
7f57c80b0249cc10b5a4c86e3242fb59

SHA1
8d0e6cc101df60beedfd80421dfcf095ceb89d4a

SHA256
62b70c4111782c7f693bd0e09bede27839dd27341db82f32eece968667773a60

SHA512
59584cbd208c5e20e0dd3d5b8614236e65ec8a2c783e62feb81ddc534dd3b47d64081144c34f7a32d7e76105326d17320e0eaebc338ac9a50e43a00c845691d7

Download Submit
memory/992-56-0x000007FEFC001000-0x000007FEFC003000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads