Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
11-11-2024 02:31
Static task
static1
Behavioral task
behavioral1
Sample
b4d933232605f020c8907260da5e94e2cb17586d1e9e1f47c05862309fb86bd9.exe
Resource
win10v2004-20241007-en
General
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Target
b4d933232605f020c8907260da5e94e2cb17586d1e9e1f47c05862309fb86bd9.exe
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Size
394KB
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MD5
2e0b2b2435ea4281b12c0a6e411c5336
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SHA1
123accd3fe44d4ca03446b39c4b0bf8a68dcba37
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SHA256
b4d933232605f020c8907260da5e94e2cb17586d1e9e1f47c05862309fb86bd9
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SHA512
af693186b55578d6efd521313445cc60b43137fb2f322e220169e9c458b1cf0e744c77591170aa08df8d5c08b49752ebe5be802fdfb2812cfd53ffa478eacdc0
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SSDEEP
6144:Kky+bnr+yp0yN90QEVcV2a5PZGVQSQZ9QuYNfzHBUB9hKC7wc3PK+i:0Mryy907a5PaYAfzC40wyPK+i
Malware Config
Extracted
redline
ruzhpe
pepunn.com:4162
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auth_value
f735ced96ae8d01d0bd1d514240e54e0
Signatures
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Detects Healer an antivirus disabler dropper 2 IoCs
resource yara_rule behavioral1/files/0x000b000000023b92-6.dat healer behavioral1/memory/3468-8-0x00000000008E0000-0x00000000008EA000-memory.dmp healer -
Healer family
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description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection sw87dc00Ih79.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" sw87dc00Ih79.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" sw87dc00Ih79.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" sw87dc00Ih79.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" sw87dc00Ih79.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" sw87dc00Ih79.exe -
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload 35 IoCs
resource yara_rule behavioral1/memory/3216-18-0x0000000002550000-0x0000000002596000-memory.dmp family_redline behavioral1/memory/3216-20-0x0000000004B90000-0x0000000004BD4000-memory.dmp family_redline behavioral1/memory/3216-42-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-46-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-84-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-82-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-80-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-76-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-74-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-72-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-70-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-66-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-64-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-62-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-60-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-58-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-54-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-52-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-50-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-48-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-44-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-40-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-38-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-36-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-34-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-32-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-30-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-28-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-78-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-68-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-56-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-26-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-24-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-22-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline behavioral1/memory/3216-21-0x0000000004B90000-0x0000000004BCE000-memory.dmp family_redline -
Redline family
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Executes dropped EXE 2 IoCs
pid Process 3468 sw87dc00Ih79.exe 3216 tkAy11uX85zB.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0" sw87dc00Ih79.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" b4d933232605f020c8907260da5e94e2cb17586d1e9e1f47c05862309fb86bd9.exe -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b4d933232605f020c8907260da5e94e2cb17586d1e9e1f47c05862309fb86bd9.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tkAy11uX85zB.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3468 sw87dc00Ih79.exe 3468 sw87dc00Ih79.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3468 sw87dc00Ih79.exe Token: SeDebugPrivilege 3216 tkAy11uX85zB.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 1124 wrote to memory of 3468 1124 b4d933232605f020c8907260da5e94e2cb17586d1e9e1f47c05862309fb86bd9.exe 85 PID 1124 wrote to memory of 3468 1124 b4d933232605f020c8907260da5e94e2cb17586d1e9e1f47c05862309fb86bd9.exe 85 PID 1124 wrote to memory of 3216 1124 b4d933232605f020c8907260da5e94e2cb17586d1e9e1f47c05862309fb86bd9.exe 93 PID 1124 wrote to memory of 3216 1124 b4d933232605f020c8907260da5e94e2cb17586d1e9e1f47c05862309fb86bd9.exe 93 PID 1124 wrote to memory of 3216 1124 b4d933232605f020c8907260da5e94e2cb17586d1e9e1f47c05862309fb86bd9.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\b4d933232605f020c8907260da5e94e2cb17586d1e9e1f47c05862309fb86bd9.exe"C:\Users\Admin\AppData\Local\Temp\b4d933232605f020c8907260da5e94e2cb17586d1e9e1f47c05862309fb86bd9.exe"1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1124 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sw87dc00Ih79.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sw87dc00Ih79.exe2⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3468
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\tkAy11uX85zB.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\tkAy11uX85zB.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3216
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
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Downloads
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Filesize
18KB
MD522b01ef88964d0983da48342d0cce223
SHA11da75f9047a61d98c586ace67c754f8e5a7badde
SHA2567c86ffb031d7f7e16f3cdcca8f6f34f6fe568bfaad16007a0d80c22ce59fe22a
SHA5120fb330665abd4b67104238aa5b95890a4841150f7917d1e3713762ede307c95296ec1ff7b36ab9c075a40241db22127d01b6be6525ae6af4b837d591d32f4fd7
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Filesize
309KB
MD5c399447de03079c2f5c1482ddeb1706b
SHA1dbeaa79a4b8e1190fc5c054b408948631dac089c
SHA256afce08c2456f2f7a0ca5d02fca432a29b387b7f1d6fb1d58c6fc6da96749f7d7
SHA5123f7001cfb7e54a471786f96c6788858718b867cdcd9c2caabd19018f74228461bcfa45211c11e5a541fdb4fd6c4ff0c330e6b6c8734304d670fc393072480b3c