Analysis
- max time kernel
150s - max time network
143s - platform
windows10_x64 - resource
win10v20210408 - submitted
11/09/2021, 15:55
Static task
static1
Behavioral task
behavioral1
Sample
Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe
Resource
win7-en
windows7_x64
General
- Target Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe
- Size 814KB
- Sample210911-tcsdesbec4
- SHA256 4d80ab79360b092bb5d8fa41d14388dffe5ef42839b6dbbf741f0ce5c3424d1e
- MD5 717297fec68e9172593a36a67549619f
- SHA1 73e8625983cb413b91b608db347177584c680a22
- SHA512 3f363a8b8971d843f7c158b3dc76de854895a76fe0e4a6dbb6b40b650d0cec760bea15179128e52fed044e2cee6964f2b70db5abf253e873feb327d6b99ba7df
- MD5 SHA1 SHA512
Malware Config
Extracted
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formbook
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4.1
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3nop
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http://www.jakesplacebarbers.com/3nop/
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videohm.com
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panache-rose.com
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alnooncars-kw.com
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trueblue2u.com
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brussels-cafe.com
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ip2c.net
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influenzerr.com
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rbcoq.com
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zzful.com
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drainthe.com
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sumaholesson.com
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cursosaprovados.com
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genotecinc.com
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dbrulhart.com
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theapiarystudios.com
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kensyu-kan.com
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dkku88.com
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tikhyper.com
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aztecnort.com
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homebrim.com
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infinitilamp.com
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leelegantflower.com
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floor-space.investments
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vidasustentavel.online
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wholehearteddaughters.com
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vipandeep.com
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mdwovzrrm.icu
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592215.com
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academicplumbing.com
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bestveganbook.com
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theservantleader.com
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nazarickdeveloper.xyz
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delta-wing.com
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girlfriendsgarb.com
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sezyz11.com
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ca3construction.com
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smartswitchhomeloan.net
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luckytwo.agency
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ministry-of-barbers.com
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babbageacademy.com
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informationside.com
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packapp.net
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spacecoasthondaevent.com
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thehealthyimmunereset.com
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pjcavaliere.info
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trebdurham.com
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zhixintonghe.com
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gon2580.com
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dottproject.net
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snakby.com
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keeponsports.com
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debbiewilsondesigns.com
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stagingsolutionsgroup.com
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forummondialdelamerbizerte.com
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garnier.red
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tempestchs.com
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zpxinxi.com
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jam-nins.com
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inclusiocg.com
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msmenders.com
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whachupichu.com
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pursemore.com
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thebusinessfitclub.com
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scootgotti.com
Signatures
- Formbook Payload 3 IoCs
resource yara_rule behavioral2/memory/1496-118-0x0000000000000000-mapping.dmp formbook behavioral2/memory/1496-120-0x0000000010410000-0x000000001043E000-memory.dmp formbook behavioral2/memory/2824-127-0x0000000000B60000-0x0000000000B8E000-memory.dmp formbook - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1496 set thread context of 3032 1496 secinit.exe 22 PID 2824 set thread context of 3032 2824 cmd.exe 22 - Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance Explorer.EXE Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance Explorer.EXE - Suspicious behavior: EnumeratesProcesses 54 IoCs
pid Process 1496 secinit.exe 1496 secinit.exe 1496 secinit.exe 1496 secinit.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe 2824 cmd.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3032 Explorer.EXE - Suspicious behavior: MapViewOfSection 5 IoCs
pid Process 1496 secinit.exe 1496 secinit.exe 1496 secinit.exe 2824 cmd.exe 2824 cmd.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1496 secinit.exe Token: SeDebugPrivilege 2824 cmd.exe - Suspicious use of FindShellTrayWindow 8 IoCs
pid Process 3032 Explorer.EXE 3032 Explorer.EXE 3032 Explorer.EXE 3032 Explorer.EXE 3032 Explorer.EXE 3032 Explorer.EXE 3032 Explorer.EXE 3032 Explorer.EXE - Suspicious use of UnmapMainImage 1 IoCs
pid Process 3032 Explorer.EXE - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 396 wrote to memory of 1496 396 Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe 68 PID 396 wrote to memory of 1496 396 Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe 68 PID 396 wrote to memory of 1496 396 Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe 68 PID 396 wrote to memory of 1496 396 Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe 68 PID 396 wrote to memory of 1496 396 Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe 68 PID 396 wrote to memory of 1496 396 Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe 68 PID 3032 wrote to memory of 2824 3032 Explorer.EXE 71 PID 3032 wrote to memory of 2824 3032 Explorer.EXE 71 PID 3032 wrote to memory of 2824 3032 Explorer.EXE 71 PID 2824 wrote to memory of 4060 2824 cmd.exe 72 PID 2824 wrote to memory of 4060 2824 cmd.exe 72 PID 2824 wrote to memory of 4060 2824 cmd.exe 72
Processes
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3032 -
C:\Users\Admin\AppData\Local\Temp\Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe"C:\Users\Admin\AppData\Local\Temp\Bdcuhmcgbsvmxhmuasrulqqnfbjdnogomk.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:396 -
C:\Windows\SysWOW64\secinit.exeC:\Windows\System32\secinit.exe3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1496
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\SysWOW64\cmd.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2824 -
C:\Windows\SysWOW64\cmd.exe/c del "C:\Windows\SysWOW64\secinit.exe"3⤵PID:4060
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