Analysis
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max time kernel
164s -
max time network
186s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
25/06/2022, 01:39
Static task
static1
Behavioral task
behavioral1
Sample
3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe
Resource
win7-20220414-en
General
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Target
3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe
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Size
4.3MB
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MD5
2239fcbdac9582e1a379dc39ca1e4dd1
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SHA1
9f3b3a7126144c2e3195d073f385c34fa82cfb6b
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SHA256
3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f
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SHA512
994688df44661ad342c97757212487cc30fe3a1241e1e05ad15f44a393d53f9bd8173cfbaf143c17c297eea6a052afe900c2199c3385abf636ac3f2aa0b5ee97
Malware Config
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ Setup.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ Setupres.exe -
Blocklisted process makes network request 3 IoCs
flow pid Process 7 3744 CScript.exe 8 3744 CScript.exe 10 3744 CScript.exe -
Executes dropped EXE 2 IoCs
pid Process 3408 Setup.exe 3080 Setupres.exe -
Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion Setup.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion Setup.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion Setupres.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion Setupres.exe -
Identifies Wine through registry keys 2 TTPs 2 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Wine Setup.exe Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Wine Setupres.exe -
Loads dropped DLL 2 IoCs
pid Process 2104 3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe 2104 3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 11 ip-api.com -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 3408 Setup.exe 3080 Setupres.exe -
Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\Program Files (x86)\Sir\Air\Setup.exe 3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe File created C:\Program Files (x86)\Sir\Air\Setupres.exe 3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe File created C:\Program Files (x86)\Sir\Air\ipras.vbs 3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 Setup.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString Setup.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3408 Setup.exe 3408 Setup.exe 3080 Setupres.exe 3080 Setupres.exe -
Suspicious use of FindShellTrayWindow 12 IoCs
pid Process 3408 Setup.exe 3408 Setup.exe 3408 Setup.exe 3408 Setup.exe 3408 Setup.exe 3408 Setup.exe 3408 Setup.exe 3408 Setup.exe 3408 Setup.exe 3408 Setup.exe 3408 Setup.exe 3408 Setup.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2104 wrote to memory of 3408 2104 3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe 78 PID 2104 wrote to memory of 3408 2104 3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe 78 PID 2104 wrote to memory of 3408 2104 3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe 78 PID 2104 wrote to memory of 3744 2104 3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe 79 PID 2104 wrote to memory of 3744 2104 3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe 79 PID 2104 wrote to memory of 3744 2104 3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe 79 PID 2104 wrote to memory of 3080 2104 3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe 83 PID 2104 wrote to memory of 3080 2104 3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe 83 PID 2104 wrote to memory of 3080 2104 3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe"C:\Users\Admin\AppData\Local\Temp\3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f.exe"1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2104 -
C:\Program Files (x86)\Sir\Air\Setup.exe"C:\Program Files (x86)\Sir\Air\Setup.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
PID:3408
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C:\Windows\SysWOW64\CScript.exe"C:\Windows\system32\CScript.exe" "C:\Program Files (x86)\Sir\Air\ipras.vbs" //e:vbscript //B //NOLOGO2⤵
- Blocklisted process makes network request
PID:3744
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C:\Program Files (x86)\Sir\Air\Setupres.exe"C:\Program Files (x86)\Sir\Air\Setupres.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:3080
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
2.2MB
MD541af7998ebb519e0a0ca9635a865be5d
SHA168a7613a8d4483efb67f3794c245420e0daf2f95
SHA256f05dc2ebf5bebbe40f1698489b873adcbefa41c98afe544fa04fd1ded91c9189
SHA51231af03c31f0568ae57aab30c3d320a5505f3106ffd02c19b9bb5c740f76af332b27d929fca715029bfd49f2a0f404643616f0f88ab4f115693949688112ac5bb
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Filesize
2.2MB
MD541af7998ebb519e0a0ca9635a865be5d
SHA168a7613a8d4483efb67f3794c245420e0daf2f95
SHA256f05dc2ebf5bebbe40f1698489b873adcbefa41c98afe544fa04fd1ded91c9189
SHA51231af03c31f0568ae57aab30c3d320a5505f3106ffd02c19b9bb5c740f76af332b27d929fca715029bfd49f2a0f404643616f0f88ab4f115693949688112ac5bb
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Filesize
2.0MB
MD5b00f36abdbc0edb4729ae72ed388e965
SHA1a1bf243bda51006cf4c8b9ee1fdcffb206058973
SHA2565e64432c3afc95cfda49aa9479fd66efb8d7ef9812a2acb3fa9a0f536a2e5db9
SHA5128dd8e5d9d6ad4a5515ae178f27e4878ddab3b8cf8786177cac91719517a959fba30cc7d93eb0eff9d1d71d097dbbdf07684fd8b077e144927079db8b8d1f5bb3
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Filesize
126B
MD5b802ff9244875f69db2fae0f78e92b10
SHA149385a89cd575894a29fbda969b99cc1f5cf8076
SHA256a1b0cb16fb2ecd66fccf156024404801ad694056e8a596326c1b27b57d8eabe8
SHA512609856415a7ae2b3e260f945f1c8a8d2a28884c202d37181bea948708918f24b42ae03f17dba1520fddc91b2f7a182b0b8f885f33ea6f81bb3ee4c72e4e9350e
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Filesize
14KB
MD5adb29e6b186daa765dc750128649b63d
SHA1160cbdc4cb0ac2c142d361df138c537aa7e708c9
SHA2562f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08
SHA512b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada
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Filesize
6KB
MD5132e6153717a7f9710dcea4536f364cd
SHA1e39bc82c7602e6dd0797115c2bd12e872a5fb2ab
SHA256d29afce2588d8dd7bb94c00ca91cac0e85b80ffa6b221f5ffcb83a2497228eb2
SHA5129aeb0b3051ce07fb9f03dfee7cea4a5e423425e48cb538173bd2a167817f867a30bd4d27d07875f27ca00031745b24547030b7f146660b049fa717590f1c77e1