Analysis
- max time kernel
148s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
23/08/2022, 12:30
General
- Target cotizar productos pdf.exe
- Size 719KB
- Sample220823-pphbrshfa5
- SHA256 fc7aec05a40df3ec7a3d88810c13d9b0433f9ff7d411c893b9510216afaabdb7
Malware Config
Extracted
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formbook
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4.1
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kmge
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jia0752d.com
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cq0jt.sbs
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whimsicalweddingrentals.com
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meetsex-here.life
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hhe-crv220.com
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bedbillionaire.com
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soycmo.com
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mrawkward.xyz
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11ramshornroad.com
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motoyonaturals.com
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thischicloves.com
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gacorbet.pro
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ihsanid.com
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pancaketurner.com
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santanarstore.com
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cr3dtv.com
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negotools.com
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landfillequip.com
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sejasuapropriachefe.com
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diamant-verkopen.store
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
- Formbook payload 4 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
- Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Drops file in System32 directory 4 IoCs
- Suspicious use of SetThreadContext 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 28 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 7 IoCs
- Suspicious use of AdjustPrivilegeToken 12 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 AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\cotizar productos pdf.exe"C:\Users\Admin\AppData\Local\Temp\cotizar productos pdf.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cleanmgr.exe"C:\Windows\System32\cleanmgr.exe"3⤵
- Enumerates connected drives
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WWAHost.exe"C:\Windows\SysWOW64\WWAHost.exe"2⤵
- Suspicious use of SetThreadContext
- 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 copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V3⤵
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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
DB1
LK3logim.jpeg
LK3logrf.ini
LK3logrg.ini
LK3logri.ini
LK3logrv.ini
memory/2640-229-0x0000000050410000-0x000000005043F000-memory.dmp
memory/2640-231-0x00000000052D0000-0x000000000561A000-memory.dmp
memory/2640-232-0x0000000005250000-0x0000000005264000-memory.dmp
memory/2740-234-0x0000000003660000-0x00000000037B7000-memory.dmp
memory/2740-265-0x0000000008670000-0x0000000008790000-memory.dmp
memory/2740-267-0x0000000008670000-0x0000000008790000-memory.dmp
memory/4876-264-0x0000000001310000-0x00000000013A3000-memory.dmp
memory/4876-266-0x0000000000410000-0x000000000043F000-memory.dmp
memory/4876-263-0x00000000015D0000-0x000000000191A000-memory.dmp
memory/4876-260-0x0000000000410000-0x000000000043F000-memory.dmp
memory/4876-259-0x0000000000550000-0x000000000062C000-memory.dmp
memory/4968-195-0x0000000050410000-0x000000005043F000-memory.dmp