Malware Analysis Report

2024-08-06 12:51

Sample ID 240612-x1wmjawhlc
Target anti byfron.exe
SHA256 ef84001f2af75ccb675331fbe87fd5d0d815fc15dfe8b121842d35df859ba2e8
Tags
stealerium collection spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

ef84001f2af75ccb675331fbe87fd5d0d815fc15dfe8b121842d35df859ba2e8

Threat Level: Known bad

The file anti byfron.exe was found to be: Known bad.

Malicious Activity Summary

stealerium collection spyware stealer

Stealerium family

Stealerium

Reads user/profile data of web browsers

Checks computer location settings

Looks up external IP address via web service

Legitimate hosting services abused for malware hosting/C2

Accesses Microsoft Outlook profiles

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Delays execution with timeout.exe

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

outlook_win_path

outlook_office_path

Checks processor information in registry

Modifies system certificate store

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Subvert Trust Controls
T1553
Install Root Certificate
T1553.004
Modify Registry
T1112
Credential Access
TA0006
Unsecured Credentials
T1552
Credentials In Files
T1552.001
Discovery
TA0007
Query Registry
T1012
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Data from Local System
T1005
Email Collection
T1114
Exfiltration
TA0010
Command and Control
TA0011
Web Service
T1102
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-12 19:19

Signatures

Stealerium family

stealerium

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 19:19

Reported

2024-06-12 19:22

Platform

win7-20231129-en

Max time kernel

127s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\anti byfron.exe"

Signatures

Stealerium

stealer stealerium

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\anti byfron.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\anti byfron.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\anti byfron.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A discord.com N/A N/A
N/A discord.com N/A N/A
N/A discord.com N/A N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A icanhazip.com N/A N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\anti byfron.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier C:\Users\Admin\AppData\Local\Temp\anti byfron.exe N/A

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 C:\Users\Admin\AppData\Local\Temp\anti byfron.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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 C:\Users\Admin\AppData\Local\Temp\anti byfron.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474 C:\Users\Admin\AppData\Local\Temp\anti byfron.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 040000000100000010000000acb694a59c17e0d791529bb19706a6e40f0000000100000014000000ce0e658aa3e847e467a147b3049191093d055e6f0b0000000100000034000000420061006c00740069006d006f007200650020004300790062006500720054007200750073007400200052006f006f007400000053000000010000002400000030223020060a2b06010401b13e01640130123010060a2b0601040182373c0101030200c0140000000100000014000000e59d5930824758ccacfa085436867b3ab5044df01d0000000100000010000000918ad43a9475f78bb5243de886d8103c09000000010000000c000000300a06082b06010505070301030000000100000014000000d4de20d05e66fc53fe1a50882c78db2852cae47419000000010000001000000068cb42b035ea773e52ef50ecf50ec52920000000010000007b030000308203773082025fa0030201020204020000b9300d06092a864886f70d0101050500305a310b300906035504061302494531123010060355040a130942616c74696d6f726531133011060355040b130a43796265725472757374312230200603550403131942616c74696d6f7265204379626572547275737420526f6f74301e170d3030303531323138343630305a170d3235303531323233353930305a305a310b300906035504061302494531123010060355040a130942616c74696d6f726531133011060355040b130a43796265725472757374312230200603550403131942616c74696d6f7265204379626572547275737420526f6f7430820122300d06092a864886f70d01010105000382010f003082010a0282010100a304bb22ab983d57e826729ab579d429e2e1e89580b1b0e35b8e2b299a64dfa15dedb009056ddb282ece62a262feb488da12eb38eb219dc0412b01527b8877d31c8fc7bab988b56a09e773e81140a7d1ccca628d2de58f0ba650d2a850c328eaf5ab25878a9a961ca967b83f0cd5f7f952132fc21bd57070f08fc012ca06cb9ae1d9ca337a77d6f8ecb9f16844424813d2c0c2a4ae5e60feb6a605fcb4dd075902d459189863f5a563e0900c7d5db2067af385eaebd403ae5e843e5fff15ed69bcf939367275cf77524df3c9902cb93de5c923533f1f2498215c079929bdc63aece76e863a6b97746333bd681831f0788d76bffc9e8e5d2a86a74d90dc271a390203010001a3453043301d0603551d0e04160414e59d5930824758ccacfa085436867b3ab5044df030120603551d130101ff040830060101ff020103300e0603551d0f0101ff040403020106300d06092a864886f70d01010505000382010100850c5d8ee46f51684205a0ddbb4f27258403bdf764fd2dd730e3a41017ebda2929b6793f76f6191323b8100af958a4d46170bd04616a128a17d50abdc5bc307cd6e90c258d86404feccca37e38c637114feddd68318e4cd2b30174eebe755e07481a7f70ff165c84c07985b805fd7fbe6511a30fc002b4f852373904d5a9317a18bfa02af41299f7a34582e33c5ef59d9eb5c89e7c2ec8a49e4e08144b6dfd706d6b1a63bd64e61fb7cef0f29f2ebb1bb7f250887392c2e2e3168d9a3202ab8e18dde91011ee7e35ab90af3e30947ad0333da7650ff5fc8e9e62cf47442c015dbb1db532d247d2382ed0fe81dc326a1eb5ee3cd5fce7811d19c32442ea6339a9 C:\Users\Admin\AppData\Local\Temp\anti byfron.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\anti byfron.exe N/A
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Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\anti byfron.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\system32\msiexec.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\system32\msiexec.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\anti byfron.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2392 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\anti byfron.exe C:\Windows\SysWOW64\cmd.exe
PID 2392 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\anti byfron.exe C:\Windows\SysWOW64\cmd.exe
PID 2392 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\anti byfron.exe C:\Windows\SysWOW64\cmd.exe
PID 2392 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\anti byfron.exe C:\Windows\SysWOW64\cmd.exe
PID 2808 wrote to memory of 1160 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 2808 wrote to memory of 1160 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 2808 wrote to memory of 1160 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 2808 wrote to memory of 1160 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 2808 wrote to memory of 2560 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe
PID 2808 wrote to memory of 2560 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe
PID 2808 wrote to memory of 2560 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe
PID 2808 wrote to memory of 2560 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe
PID 2808 wrote to memory of 2096 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\findstr.exe
PID 2808 wrote to memory of 2096 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\findstr.exe
PID 2808 wrote to memory of 2096 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\findstr.exe
PID 2808 wrote to memory of 2096 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\findstr.exe
PID 2392 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\anti byfron.exe C:\Windows\SysWOW64\cmd.exe
PID 2392 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\anti byfron.exe C:\Windows\SysWOW64\cmd.exe
PID 2392 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\anti byfron.exe C:\Windows\SysWOW64\cmd.exe
PID 2392 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\anti byfron.exe C:\Windows\SysWOW64\cmd.exe
PID 1656 wrote to memory of 1080 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 1656 wrote to memory of 1080 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 1656 wrote to memory of 1080 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 1656 wrote to memory of 1080 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 1656 wrote to memory of 1304 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe
PID 1656 wrote to memory of 1304 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe
PID 1656 wrote to memory of 1304 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe
PID 1656 wrote to memory of 1304 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\netsh.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\anti byfron.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\anti byfron.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\anti byfron.exe

"C:\Users\Admin\AppData\Local\Temp\anti byfron.exe"

C:\Windows\SysWOW64\cmd.exe

"cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All

C:\Windows\SysWOW64\chcp.com

chcp 65001

C:\Windows\SysWOW64\netsh.exe

netsh wlan show profile

C:\Windows\SysWOW64\findstr.exe

findstr All

C:\Windows\SysWOW64\cmd.exe

"cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid

C:\Windows\SysWOW64\chcp.com

chcp 65001

C:\Windows\SysWOW64\netsh.exe

netsh wlan show networks mode=bssid

C:\Windows\system32\msiexec.exe

C:\Windows\system32\msiexec.exe /V

Network

Country Destination Domain Proto
US 8.8.8.8:53 discord.com udp
US 162.159.135.232:443 discord.com tcp
US 8.8.8.8:53 www.microsoft.com udp
US 8.8.8.8:53 icanhazip.com udp
US 104.16.185.241:80 icanhazip.com tcp
US 8.8.8.8:53 crl.microsoft.com udp
US 2.17.251.99:80 crl.microsoft.com tcp
GB 2.21.189.233:80 www.microsoft.com tcp
US 8.8.8.8:53 csc3-2004-crl.verisign.com udp
US 104.16.185.241:80 icanhazip.com tcp
US 8.8.8.8:53 api.gofile.io udp
FR 51.178.66.33:443 api.gofile.io tcp
US 8.8.8.8:53 store10.gofile.io udp
FR 31.14.70.252:443 store10.gofile.io tcp
US 104.16.185.241:80 icanhazip.com tcp
US 162.159.135.232:443 discord.com tcp

Files

memory/2392-0-0x000000007415E000-0x000000007415F000-memory.dmp

memory/2392-1-0x0000000001000000-0x0000000001194000-memory.dmp

memory/2392-2-0x0000000074150000-0x000000007483E000-memory.dmp

memory/2392-3-0x0000000005250000-0x00000000052E2000-memory.dmp

memory/2392-4-0x0000000000BC0000-0x0000000000BE6000-memory.dmp

memory/2392-5-0x0000000000920000-0x0000000000928000-memory.dmp

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

MD5 49aebf8cbd62d92ac215b2923fb1b9f5
SHA1 1723be06719828dda65ad804298d0431f6aff976
SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

C:\Users\Admin\AppData\Local\Temp\Tar569D.tmp

MD5 4ea6026cf93ec6338144661bf1202cd1
SHA1 a1dec9044f750ad887935a01430bf49322fbdcb7
SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA512 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

memory/2392-42-0x0000000000E00000-0x0000000000E0A000-memory.dmp

memory/2392-43-0x0000000000E10000-0x0000000000E18000-memory.dmp

memory/2392-44-0x0000000000E20000-0x0000000000E3E000-memory.dmp

C:\Users\Admin\AppData\Local\c7573d53f685bbf4123bd7440d768822\Admin@SCFGBRBT_en-US\Browsers\Firefox\Bookmarks.txt

MD5 2e9d094dda5cdc3ce6519f75943a4ff4
SHA1 5d989b4ac8b699781681fe75ed9ef98191a5096c
SHA256 c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142
SHA512 d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

C:\Users\Admin\AppData\Local\c7573d53f685bbf4123bd7440d768822\Admin@SCFGBRBT_en-US\System\Apps.txt

MD5 130dacf3d9fa53eb10f7ddb99728ac09
SHA1 caaab42fccaf0313d26392397b24b96e817aaf33
SHA256 8b9a2d8f2c00b76e16d517e04c194c6d27049cd4efe1c3157159b600c87f82d6
SHA512 1838afc19a7f83894aa71fd9211367c440beef6300a15c597bb497eafbc55b3e769966e03620ee015d7d7ea4516211190e4f55e6c20adb3d46f557673a900b1d

memory/2392-152-0x0000000006DF0000-0x0000000006E6A000-memory.dmp

memory/2392-153-0x000000007415E000-0x000000007415F000-memory.dmp

C:\Users\Admin\AppData\Local\c7573d53f685bbf4123bd7440d768822\Admin@SCFGBRBT_en-US\Directories\Startup.txt

MD5 68c93da4981d591704cea7b71cebfb97
SHA1 fd0f8d97463cd33892cc828b4ad04e03fc014fa6
SHA256 889ed51f9c16a4b989bda57957d3e132b1a9c117ee84e208207f2fa208a59483
SHA512 63455c726b55f2d4de87147a75ff04f2daa35278183969ccf185d23707840dd84363bec20d4e8c56252196ce555001ca0e61b3f4887d27577081fdef9e946402

C:\Users\Admin\AppData\Local\c7573d53f685bbf4123bd7440d768822\Admin@SCFGBRBT_en-US\Directories\Videos.txt

MD5 1fddbf1169b6c75898b86e7e24bc7c1f
SHA1 d2091060cb5191ff70eb99c0088c182e80c20f8c
SHA256 a67aa329b7d878de61671e18cd2f4b011d11cbac67ea779818c6dafad2d70733
SHA512 20bfeafde7fec1753fef59de467bd4a3dd7fe627e8c44e95fe62b065a5768c4508e886ec5d898e911a28cf6365f455c9ab1ebe2386d17a76f53037f99061fd4d

C:\Users\Admin\AppData\Local\c7573d53f685bbf4123bd7440d768822\Admin@SCFGBRBT_en-US\System\ProductKey.txt

MD5 cad6c6bee6c11c88f5e2f69f0be6deb7
SHA1 289d74c3bebe6cca4e1d2e084482ad6d21316c84
SHA256 dc288491fadc4a85e71085890e3d6a7746e99a317cd5ef09a30272dfb10398c0
SHA512 e02cf6bff8b4ebd7a1346ecb1667be36c3ef7415fff77c3b9cfb370f3d0dc861f74d3e0e49065699850ba6cc025cd68d14ceb73f3b512c2a9b28873a69aff097

memory/2392-211-0x0000000007350000-0x0000000007402000-memory.dmp

memory/2392-213-0x0000000074150000-0x000000007483E000-memory.dmp

C:\Users\Admin\AppData\Local\c7573d53f685bbf4123bd7440d768822\msgid.dat

MD5 c24c9e48c0ebc517c59092a6dbcf8936
SHA1 43ed2c7544fc2fd1b337cf043c40d73c86192145
SHA256 d35316225faf245822001c4ca9eb136adb9377b0814bd31daf6a2f7fe2976d07
SHA512 baece1dbeafb93136782189e207a5a4f422fefea9d969f9c5403d82cb7b4154b03182b5db4483fb848a949721d2dfaf8fbd97bbb4ba820af9378d19c6f2be358

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 19:19

Reported

2024-06-12 19:22

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

58s

Command Line

"C:\Users\Admin\AppData\Local\Temp\anti byfron.exe"

Signatures

Stealerium

stealer stealerium

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\anti byfron.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A discord.com N/A N/A

Enumerates physical storage devices

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\anti byfron.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\anti byfron.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 972 wrote to memory of 3108 N/A C:\Users\Admin\AppData\Local\Temp\anti byfron.exe C:\Windows\SysWOW64\cmd.exe
PID 972 wrote to memory of 3108 N/A C:\Users\Admin\AppData\Local\Temp\anti byfron.exe C:\Windows\SysWOW64\cmd.exe
PID 972 wrote to memory of 3108 N/A C:\Users\Admin\AppData\Local\Temp\anti byfron.exe C:\Windows\SysWOW64\cmd.exe
PID 3108 wrote to memory of 1540 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3108 wrote to memory of 1540 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3108 wrote to memory of 1540 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3108 wrote to memory of 5072 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 3108 wrote to memory of 5072 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 3108 wrote to memory of 5072 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 3108 wrote to memory of 4472 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3108 wrote to memory of 4472 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3108 wrote to memory of 4472 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\anti byfron.exe

"C:\Users\Admin\AppData\Local\Temp\anti byfron.exe"

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpA930.tmp.bat

C:\Windows\SysWOW64\chcp.com

chcp 65001

C:\Windows\SysWOW64\taskkill.exe

TaskKill /F /IM 972

C:\Windows\SysWOW64\timeout.exe

Timeout /T 2 /Nobreak

Network

Country Destination Domain Proto
US 8.8.8.8:53 discord.com udp

Files

memory/972-0-0x0000000074A6E000-0x0000000074A6F000-memory.dmp

memory/972-1-0x00000000007F0000-0x0000000000984000-memory.dmp

memory/972-2-0x00000000051D0000-0x0000000005236000-memory.dmp

memory/972-3-0x0000000074A60000-0x0000000075210000-memory.dmp

memory/972-4-0x0000000005790000-0x0000000005822000-memory.dmp

memory/972-5-0x00000000052E0000-0x0000000005306000-memory.dmp

memory/972-6-0x0000000005820000-0x0000000005828000-memory.dmp

memory/972-7-0x0000000074A6E000-0x0000000074A6F000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpA930.tmp.bat

MD5 18c8279466496b9b1842a92550d97600
SHA1 9bd745f6896e884ac39f19c5610f1877aaa69a11
SHA256 127501629849b05b2143bb79014ad478e07df409097b6284093c4c70150253f6
SHA512 807aa3d1e53e21d2736253aa80674322443bb53dd60f45f0a691ac602c4e8dc9a21a88d04afc1122a30568e397e1d1ad9194d6513511c5a893d1bd9515e3ab4b

memory/972-10-0x0000000074A60000-0x0000000075210000-memory.dmp