Analysis
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max time kernel
157s -
max time network
157s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
19/01/2022, 16:34
Static task
static1
Behavioral task
behavioral1
Sample
1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165.exe
Resource
win10v2004-en-20220112
General
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Target
1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165.exe
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Size
11.7MB
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MD5
51f468fa1f11ef59ad7fd5f339906661
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SHA1
03887d2684aff18df484ca39c8f070a0bc725e4a
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SHA256
1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165
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SHA512
493e7d68f3ffdb6e9b0587457370253f72e3d6b2c6fa3bafb1e96dcb36db0e6b78b2a52bcf86c9b42f1bf260da639a1e88ca13d8a43ad9826ed4f680e9c3ba7f
Malware Config
Extracted
fickerstealer
prunerflowershop.com:80
Signatures
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Babadeda Crypter 1 IoCs
resource yara_rule behavioral1/files/0x0005000000016cb2-75.dat family_babadeda -
Fickerstealer
Ficker is an infostealer written in Rust and ASM.
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Executes dropped EXE 2 IoCs
pid Process 332 irsetup.exe 364 alcodec.exe -
resource yara_rule behavioral1/files/0x000800000001226a-55.dat upx behavioral1/files/0x000800000001226a-56.dat upx behavioral1/files/0x000800000001226a-58.dat upx behavioral1/files/0x000800000001226a-57.dat upx behavioral1/files/0x000800000001226a-59.dat upx behavioral1/files/0x000800000001226a-63.dat upx behavioral1/files/0x000800000001226a-67.dat upx -
Loads dropped DLL 14 IoCs
pid Process 1212 1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165.exe 1212 1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165.exe 1212 1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165.exe 1212 1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165.exe 332 irsetup.exe 332 irsetup.exe 332 irsetup.exe 332 irsetup.exe 332 irsetup.exe 332 irsetup.exe 332 irsetup.exe 332 irsetup.exe 332 irsetup.exe 364 alcodec.exe -
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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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 4 api.ipify.org -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 10 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{13DEF622-983C-4FA4-91CD-238C72DE4F3F}\InprocServer32 irsetup.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{13DEF622-983C-4FA4-91CD-238C72DE4F3F}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Roaming\\Creative Labs Al32 Codec\\Filters\\LC.dll" irsetup.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{13DEF622-983C-4FA4-91CD-238C72DE4F3F}\InprocServer32\ThreadingModel = "both" irsetup.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{08C10075-CA5C-4EDE-A033-AD28827A2F66} irsetup.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{08C10075-CA5C-4EDE-A033-AD28827A2F66}\ = "Elecard LC" irsetup.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{08C10075-CA5C-4EDE-A033-AD28827A2F66}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Roaming\\Creative Labs Al32 Codec\\Filters\\LC.dll" irsetup.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{13DEF622-983C-4FA4-91CD-238C72DE4F3F} irsetup.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{08C10075-CA5C-4EDE-A033-AD28827A2F66}\InprocServer32 irsetup.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{08C10075-CA5C-4EDE-A033-AD28827A2F66}\InprocServer32\ThreadingModel = "both" irsetup.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{13DEF622-983C-4FA4-91CD-238C72DE4F3F}\ = "Elecard LC" irsetup.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 332 irsetup.exe 332 irsetup.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1212 wrote to memory of 332 1212 1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165.exe 27 PID 1212 wrote to memory of 332 1212 1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165.exe 27 PID 1212 wrote to memory of 332 1212 1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165.exe 27 PID 1212 wrote to memory of 332 1212 1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165.exe 27 PID 1212 wrote to memory of 332 1212 1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165.exe 27 PID 1212 wrote to memory of 332 1212 1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165.exe 27 PID 1212 wrote to memory of 332 1212 1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165.exe 27 PID 332 wrote to memory of 364 332 irsetup.exe 28 PID 332 wrote to memory of 364 332 irsetup.exe 28 PID 332 wrote to memory of 364 332 irsetup.exe 28 PID 332 wrote to memory of 364 332 irsetup.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165.exe"C:\Users\Admin\AppData\Local\Temp\1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1212 -
C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe"C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe" __IRAOFF:1810466 "__IRAFN:C:\Users\Admin\AppData\Local\Temp\1f53d6f4fb02c8663b9d377570953d07c56df297674b7c3847d1697f0e5f8165.exe" "__IRCT:3" "__IRTSS:0" "__IRSID:S-1-5-21-3846991908-3261386348-1409841751-1000"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:332 -
C:\Users\Admin\AppData\Roaming\Creative Labs Al32 Codec\alcodec.exe"C:\Users\Admin\AppData\Roaming\Creative Labs Al32 Codec\alcodec.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
PID:364
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