Analysis
- max time kernel
159s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20220331-en - submitted
07/04/2022, 08:53
General
- Target IRQ2107797_pdf.exe
- Size 487KB
- Sample220407-ktaehadhf4
- SHA256 ec6cb0a51fe3d020e3989762f1b449f45413695c9ea7db67d3a2cf31c9e26ef1
Malware Config
Extracted
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formbook
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4.1
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s09m
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briteidea.solutions
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laureloil.store
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mappr.info
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mrcostavendasonline.com
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armystart.com
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fsztlj.com
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crowd-bonus.online
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intrinsicvalueventures.com
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orbworld.com
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implant-dentclinic.store
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zibbaceramic.com
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sellingmygold.com
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careercoachservices.com
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onlinecrosslink.com
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besremiop.store
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clickybuzz.com
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metaversogrowth.com
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pinoaflower.com
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privilegedpeach.com
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whxzf.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook Payload 2 IoCs
- Executes dropped EXE 2 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Enumerates system info in registry 2 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 60 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\IRQ2107797_pdf.exe"C:\Users\Admin\AppData\Local\Temp\IRQ2107797_pdf.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\hwwzguyxtb.exeC:\Users\Admin\AppData\Local\Temp\hwwzguyxtb.exe C:\Users\Admin\AppData\Local\Temp\qsxlaxvmts3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\hwwzguyxtb.exeC:\Users\Admin\AppData\Local\Temp\hwwzguyxtb.exe C:\Users\Admin\AppData\Local\Temp\qsxlaxvmts4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\chkdsk.exe"C:\Windows\SysWOW64\chkdsk.exe"2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe/c del "C:\Users\Admin\AppData\Local\Temp\hwwzguyxtb.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
4owwllpf07o08okr7
hwwzguyxtb.exe
hwwzguyxtb.exe
hwwzguyxtb.exe
qsxlaxvmts
memory/3056-142-0x0000000009350000-0x00000000094E3000-memory.dmp
memory/3056-135-0x00000000032A0000-0x00000000033BC000-memory.dmp
memory/4132-141-0x00000000014E0000-0x0000000001573000-memory.dmp
memory/4132-140-0x0000000001750000-0x0000000001A9A000-memory.dmp
memory/4132-138-0x00000000008A0000-0x00000000008AA000-memory.dmp
memory/4132-139-0x0000000000EF0000-0x0000000000F1F000-memory.dmp
memory/4796-134-0x00000000009F0000-0x0000000000A04000-memory.dmp
memory/4796-132-0x0000000000AF0000-0x0000000000E3A000-memory.dmp
memory/4796-130-0x0000000000400000-0x000000000042F000-memory.dmp