Analysis
- max time kernel
148s - max time network
155s - platform
windows7_x64 - resource
win7 - submitted
12/08/2020, 06:57
General
- Target u17mv3Hf1BdS3fQ.exe
- Size 532KB
- Sample200812-spzad9bcle
- SHA256 a733deff759ea8ed7bcb941789e3458cd51b4bb355b66c34a08e3c790ea5f688
Malware Config
Extracted
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formbook
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http://www.iskovlay.com/r7m/
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tvdaum.com
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slipperylove.com
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sajhadabali.com
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rulgys.men
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sexservidoras.com
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jsatvi.loan
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yakabuna-webshop.com
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texturebarn.net
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allsortofgirls.com
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biologynoopsyche.net
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combsenterprise.com
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handsfreeleveler.com
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napson.com
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gabi.ltd
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dengshijiapu.com
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boerhesi.com
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szbiqiangli.com
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lizoschwald.com
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fintechmundo.com
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kk0799.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook Payload 4 IoCs
- Adds policy Run key to start application 2 TTPs 2 IoCs
- Deletes itself 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Suspicious use of SetThreadContext 3 IoCs
- Drops file in Program Files directory 1 IoCs
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 19 IoCs
- Suspicious behavior: MapViewOfSection 7 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 5 IoCs
- Suspicious use of SendNotifyMessage 4 IoCs
- Suspicious use of WriteProcessMemory 23 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\u17mv3Hf1BdS3fQ.exe"C:\Users\Admin\AppData\Local\Temp\u17mv3Hf1BdS3fQ.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\u17mv3Hf1BdS3fQ.exe"C:\Users\Admin\AppData\Local\Temp\u17mv3Hf1BdS3fQ.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\wuapp.exe"C:\Windows\SysWOW64\wuapp.exe"2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- 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\u17mv3Hf1BdS3fQ.exe"3⤵
- Deletes itself
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/796-21-0x0000000003AE0000-0x0000000003C50000-memory.dmp
memory/796-9-0x0000000000D50000-0x0000000000D5B000-memory.dmp
memory/796-11-0x0000000000640000-0x00000000006E3000-memory.dmp
memory/796-12-0x00000000769D0000-0x00000000769DC000-memory.dmp
memory/796-13-0x0000000076740000-0x000000007685D000-memory.dmp
memory/1164-0-0x0000000074200000-0x00000000748EE000-memory.dmp
memory/1164-1-0x00000000011D0000-0x00000000011D1000-memory.dmp
memory/1164-3-0x00000000005D0000-0x00000000005DB000-memory.dmp
memory/1164-5-0x00000000057A0000-0x00000000057D0000-memory.dmp
memory/1164-4-0x0000000005700000-0x0000000005745000-memory.dmp
memory/1608-6-0x0000000000400000-0x000000000042D000-memory.dmp
memory/1892-20-0x000007FEF7F10000-0x000007FEF818A000-memory.dmp
memory/1984-23-0x000000013F670000-0x000000013F703000-memory.dmp