Analysis
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max time kernel
151s -
max time network
154s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
12-10-2021 10:45
Static task
static1
Behavioral task
behavioral1
Sample
dllhost.exe
Resource
win7-en-20210920
General
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Target
dllhost.exe
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Size
485KB
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MD5
1fe73fe4d37cae6a02262b5164f3def0
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SHA1
80b03eb27651723bded1fd1425f489225b3bba3b
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SHA256
0c33fe39195569a868cf9f87d3aff16e72f5a54c4e52a852b8f986d121fa47e8
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SHA512
7416dadb6e85cc43000bba33f47797cf7e5fe5ee0c9f8639685130264a867b6048839d2b74ca3e00b00caf8a1dcf83d08f01901c56ab9343888d62501c48d2b6
Malware Config
Extracted
| Family |
formbook |
| Version |
4.1 |
| Campaign |
kzk9 |
| C2 |
http://www.yourmajordomo.com/kzk9/ |
| Decoy |
tianconghuo.club 1996-page.com ourtownmax.net conservativetreehose.com synth.repair donnachicacreperia.com tentfull.com weapp.download surfersink.com gattlebusinessservices.com sebastian249.com anhphuc.company betternatureproducts.net defroplate.com seattlesquidsquad.com polarjob.com lendingadvantage.com angelsondope.com goportjitney.com tiendagrupojagr.com self-care360.com foreignexchage.com loan-stalemate.info hrsimrnsingh.com laserobsession.com primetimesmagazine.com teminyulon.xyz kanoondarab.com alpinefall.com tbmautosales.com 4g2020.com libertyquartermaster.com flavorfalafel.com generlitravel.com solvedfp.icu jamnvibez.com zmx258.com doudiangroup.com dancecenterwest.com ryantheeconomist.com beeofthehive.com bluelearn.world vivalasplantas.com yumiacraftlab.com shophere247365.com enjoybespokenwords.com windajol.com ctgbazar.xyz afcerd.com dateprotect.com northeastonmusic.com fourwaira.com forschungsraumtheater.com islameraloke.com mavericksone.com whguideinfrared.com akomandr.com experts-portail.com ambassadorworldnews.com case-kangaroo.com theglobalbusinessmentor.com igforoldpeople.com royalglossesbss.com merxeduct.com |
Signatures
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Formbook Payload ⋅ 3 IoCs
Processes:
resource yara_rule behavioral2/memory/3828-123-0x0000000000400000-0x000000000042E000-memory.dmp formbook behavioral2/memory/3828-124-0x000000000041EB80-mapping.dmp formbook behavioral2/memory/3900-133-0x0000000002380000-0x00000000023AE000-memory.dmp formbook -
Suspicious use of SetThreadContext ⋅ 3 IoCs
Processes:
dllhost.exedllhost.exemsiexec.exedescription pid process target process PID 4060 set thread context of 3828 4060 dllhost.exe dllhost.exe PID 3828 set thread context of 3016 3828 dllhost.exe Explorer.EXE PID 3900 set thread context of 3016 3900 msiexec.exe Explorer.EXE -
Suspicious behavior: EnumeratesProcesses ⋅ 46 IoCs
Processes:
dllhost.exedllhost.exemsiexec.exepid process 4060 dllhost.exe 4060 dllhost.exe 4060 dllhost.exe 4060 dllhost.exe 4060 dllhost.exe 4060 dllhost.exe 3828 dllhost.exe 3828 dllhost.exe 3828 dllhost.exe 3828 dllhost.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe 3900 msiexec.exe -
Suspicious behavior: GetForegroundWindowSpam ⋅ 1 IoCs
Processes:
Explorer.EXEpid process 3016 Explorer.EXE -
Suspicious behavior: MapViewOfSection ⋅ 5 IoCs
Processes:
dllhost.exemsiexec.exepid process 3828 dllhost.exe 3828 dllhost.exe 3828 dllhost.exe 3900 msiexec.exe 3900 msiexec.exe -
Suspicious use of AdjustPrivilegeToken ⋅ 3 IoCs
Processes:
dllhost.exedllhost.exemsiexec.exedescription pid process Token: SeDebugPrivilege 4060 dllhost.exe Token: SeDebugPrivilege 3828 dllhost.exe Token: SeDebugPrivilege 3900 msiexec.exe -
Suspicious use of UnmapMainImage ⋅ 1 IoCs
Processes:
Explorer.EXEpid process 3016 Explorer.EXE -
Suspicious use of WriteProcessMemory ⋅ 12 IoCs
Processes:
dllhost.exeExplorer.EXEmsiexec.exedescription pid process target process PID 4060 wrote to memory of 3828 4060 dllhost.exe dllhost.exe PID 4060 wrote to memory of 3828 4060 dllhost.exe dllhost.exe PID 4060 wrote to memory of 3828 4060 dllhost.exe dllhost.exe PID 4060 wrote to memory of 3828 4060 dllhost.exe dllhost.exe PID 4060 wrote to memory of 3828 4060 dllhost.exe dllhost.exe PID 4060 wrote to memory of 3828 4060 dllhost.exe dllhost.exe PID 3016 wrote to memory of 3900 3016 Explorer.EXE msiexec.exe PID 3016 wrote to memory of 3900 3016 Explorer.EXE msiexec.exe PID 3016 wrote to memory of 3900 3016 Explorer.EXE msiexec.exe PID 3900 wrote to memory of 1988 3900 msiexec.exe cmd.exe PID 3900 wrote to memory of 1988 3900 msiexec.exe cmd.exe PID 3900 wrote to memory of 1988 3900 msiexec.exe cmd.exe
Processes
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C:\Windows\Explorer.EXEPID:3016C:\Windows\Explorer.EXESuspicious behavior: GetForegroundWindowSpamSuspicious use of UnmapMainImageSuspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\dllhost.exePID:4060"C:\Users\Admin\AppData\Local\Temp\dllhost.exe"Suspicious use of SetThreadContextSuspicious behavior: EnumeratesProcessesSuspicious use of AdjustPrivilegeTokenSuspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\dllhost.exePID:3828"C:\Users\Admin\AppData\Local\Temp\dllhost.exe"Suspicious use of SetThreadContextSuspicious behavior: EnumeratesProcessesSuspicious behavior: MapViewOfSectionSuspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\msiexec.exePID:3900"C:\Windows\SysWOW64\msiexec.exe"Suspicious use of SetThreadContextSuspicious behavior: EnumeratesProcessesSuspicious behavior: MapViewOfSectionSuspicious use of AdjustPrivilegeTokenSuspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exePID:1988/c del "C:\Users\Admin\AppData\Local\Temp\dllhost.exe"
Network
MITRE ATT&CK Matrix
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Replay Monitor
Downloads
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memory/1988-134-0x0000000000000000-mapping.dmp
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memory/3016-137-0x0000000003250000-0x0000000003311000-memory.dmp
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memory/3016-128-0x0000000006E30000-0x0000000006FA2000-memory.dmp
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memory/3828-123-0x0000000000400000-0x000000000042E000-memory.dmp
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memory/3828-127-0x0000000001160000-0x0000000001174000-memory.dmp
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memory/3828-126-0x0000000001270000-0x0000000001590000-memory.dmp
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memory/3828-124-0x000000000041EB80-mapping.dmp
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memory/3900-131-0x00000000001E0000-0x00000000001E1000-memory.dmp
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memory/3900-132-0x00000000001B0000-0x00000000001C2000-memory.dmp
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memory/3900-136-0x00000000041F0000-0x0000000004283000-memory.dmp
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memory/3900-135-0x0000000004380000-0x00000000046A0000-memory.dmp
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memory/3900-133-0x0000000002380000-0x00000000023AE000-memory.dmp
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memory/3900-130-0x00000000001E0000-0x00000000001E1000-memory.dmp
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memory/3900-129-0x0000000000000000-mapping.dmp
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memory/4060-118-0x00000000049F0000-0x00000000049F1000-memory.dmp
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memory/4060-114-0x0000000000150000-0x0000000000151000-memory.dmp
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memory/4060-119-0x0000000004990000-0x0000000004E8E000-memory.dmp
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memory/4060-122-0x00000000065D0000-0x0000000006620000-memory.dmp
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memory/4060-117-0x0000000004A30000-0x0000000004A31000-memory.dmp
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memory/4060-120-0x0000000004D30000-0x0000000004D35000-memory.dmp
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memory/4060-121-0x0000000006530000-0x0000000006531000-memory.dmp
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memory/4060-116-0x0000000004E90000-0x0000000004E91000-memory.dmp