Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
26-10-2024 03:50
Static task
static1
Behavioral task
behavioral1
Sample
449b0c646a44a423e6b10c561b2ae5135f1f69951f81882108bb38fe6050b31cN.exe
Resource
win7-20240903-en
General
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Target
449b0c646a44a423e6b10c561b2ae5135f1f69951f81882108bb38fe6050b31cN.exe
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Size
237KB
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MD5
c6b6e452dd0950de190230b989af9860
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SHA1
a96d8e284a77f80b5ed72a56cba4ee85129cfcd1
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SHA256
449b0c646a44a423e6b10c561b2ae5135f1f69951f81882108bb38fe6050b31c
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SHA512
cd8bf4779dab5761e5b02a359e2a702b96ac38ad86f975486e0e68a3f51d87ce826adccdec8fe8189c4f92780928323c0e8e65adb981684aff6f2c70f64212a8
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SSDEEP
6144:H8AbwMmJOyOK5ZV7NHPR519jtr5a8MueZG7H:PwVJOp8FNprdrMul7
Malware Config
Signatures
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Blocklisted process makes network request 5 IoCs
flow pid Process 3 2656 rundll32.exe 6 2656 rundll32.exe 7 2656 rundll32.exe 10 2656 rundll32.exe 11 2656 rundll32.exe -
Deletes itself 1 IoCs
pid Process 2856 vnzit.exe -
Executes dropped EXE 1 IoCs
pid Process 2856 vnzit.exe -
Loads dropped DLL 3 IoCs
pid Process 2864 cmd.exe 2864 cmd.exe 2656 rundll32.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\xijhd\\rjsqt.jqr\",RAFlush" rundll32.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\z: rundll32.exe File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\n: rundll32.exe File opened (read-only) \??\p: rundll32.exe File opened (read-only) \??\r: rundll32.exe File opened (read-only) \??\t: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\h: rundll32.exe File opened (read-only) \??\i: rundll32.exe File opened (read-only) \??\q: rundll32.exe File opened (read-only) \??\u: rundll32.exe File opened (read-only) \??\g: rundll32.exe File opened (read-only) \??\o: rundll32.exe File opened (read-only) \??\s: rundll32.exe File opened (read-only) \??\y: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\l: rundll32.exe File opened (read-only) \??\m: rundll32.exe File opened (read-only) \??\v: rundll32.exe File opened (read-only) \??\w: rundll32.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PHYSICALDRIVE0 rundll32.exe -
resource yara_rule behavioral1/files/0x000a00000001867d-9.dat upx behavioral1/memory/2656-11-0x0000000010000000-0x000000001003D000-memory.dmp upx behavioral1/memory/2656-12-0x0000000010000000-0x000000001003D000-memory.dmp upx behavioral1/memory/2656-15-0x0000000010000000-0x000000001003D000-memory.dmp upx behavioral1/memory/2656-16-0x0000000010000000-0x000000001003D000-memory.dmp upx -
System Location Discovery: System Language Discovery 1 TTPs 5 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 449b0c646a44a423e6b10c561b2ae5135f1f69951f81882108bb38fe6050b31cN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vnzit.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 2724 PING.EXE 2864 cmd.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2724 PING.EXE -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe 2656 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2656 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2828 449b0c646a44a423e6b10c561b2ae5135f1f69951f81882108bb38fe6050b31cN.exe 2856 vnzit.exe -
Suspicious use of WriteProcessMemory 19 IoCs
description pid Process procid_target PID 2828 wrote to memory of 2864 2828 449b0c646a44a423e6b10c561b2ae5135f1f69951f81882108bb38fe6050b31cN.exe 30 PID 2828 wrote to memory of 2864 2828 449b0c646a44a423e6b10c561b2ae5135f1f69951f81882108bb38fe6050b31cN.exe 30 PID 2828 wrote to memory of 2864 2828 449b0c646a44a423e6b10c561b2ae5135f1f69951f81882108bb38fe6050b31cN.exe 30 PID 2828 wrote to memory of 2864 2828 449b0c646a44a423e6b10c561b2ae5135f1f69951f81882108bb38fe6050b31cN.exe 30 PID 2864 wrote to memory of 2724 2864 cmd.exe 32 PID 2864 wrote to memory of 2724 2864 cmd.exe 32 PID 2864 wrote to memory of 2724 2864 cmd.exe 32 PID 2864 wrote to memory of 2724 2864 cmd.exe 32 PID 2864 wrote to memory of 2856 2864 cmd.exe 33 PID 2864 wrote to memory of 2856 2864 cmd.exe 33 PID 2864 wrote to memory of 2856 2864 cmd.exe 33 PID 2864 wrote to memory of 2856 2864 cmd.exe 33 PID 2856 wrote to memory of 2656 2856 vnzit.exe 34 PID 2856 wrote to memory of 2656 2856 vnzit.exe 34 PID 2856 wrote to memory of 2656 2856 vnzit.exe 34 PID 2856 wrote to memory of 2656 2856 vnzit.exe 34 PID 2856 wrote to memory of 2656 2856 vnzit.exe 34 PID 2856 wrote to memory of 2656 2856 vnzit.exe 34 PID 2856 wrote to memory of 2656 2856 vnzit.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\449b0c646a44a423e6b10c561b2ae5135f1f69951f81882108bb38fe6050b31cN.exe"C:\Users\Admin\AppData\Local\Temp\449b0c646a44a423e6b10c561b2ae5135f1f69951f81882108bb38fe6050b31cN.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2828 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\vnzit.exe "C:\Users\Admin\AppData\Local\Temp\449b0c646a44a423e6b10c561b2ae5135f1f69951f81882108bb38fe6050b31cN.exe"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2864 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2724
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C:\Users\Admin\AppData\Local\Temp\vnzit.exeC:\Users\Admin\AppData\Local\Temp\\vnzit.exe "C:\Users\Admin\AppData\Local\Temp\449b0c646a44a423e6b10c561b2ae5135f1f69951f81882108bb38fe6050b31cN.exe"3⤵
- Deletes itself
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2856 -
\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\xijhd\rjsqt.jqr",RAFlush C:\Users\Admin\AppData\Local\Temp\vnzit.exe4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2656
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
81KB
MD5fe3b1b222244f783fe9927ff16813c45
SHA169c88427b6fe1b75b4f5dc51d7dcce1bc438de9b
SHA2562973a0957bd204e123307415bade58f84cdf272c659048a99bf42dfdb563415a
SHA512ad16236d7b0bca4f021d031c8c75c5a339218f6e27dd8be62dfc3719cf945ba832ec6c4c04483622431ed545125415ca03a636a22b2d4f13cc9545fffbe7bd64
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Filesize
237KB
MD50670dc86d45e6491cf193196d75e3e92
SHA193b3ab71a0a0a7bdd040733c2e731c17af9d840b
SHA2568a2de34b9e8dca83910262d057becb7dad93c0a458292b033fcc993ba65a36d2
SHA512094750b77ebae7f4d3bb2e91aa469b108eef6ce4f514dc4308ad880826e0b4a3d48543af44cbf6ff928932b5830b64078d1bf9d0dd6ecae2342119d19cfb9748