Analysis
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max time kernel
153s -
max time network
158s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
19-05-2022 02:14
Static task
static1
Behavioral task
behavioral1
Sample
scrss.exe
Resource
win7-20220414-en
General
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Target
scrss.exe
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Size
298KB
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MD5
6cc7f4dc6d60f6b01b7164532f4d4fe6
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SHA1
1dbf0fe6eb6c43494507f2cb286eac424ef87e79
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SHA256
42d8b7f214ab4c51c337d3abfaa9107f0e8fd78801311e205cd484e4b65fb440
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SHA512
1c4b1d5d3cb852eb1f985293a8ab085a416079ab6f71ad7b29866843cb27d6840678a7bdf84252f5952a4037341fd946a201704fd18ddf1aa857960dc7c234de
Malware Config
Extracted
formbook
4.1
fw02
payer-breakers.com
thesiscoper.com
rental-villa.com
scovikinnovations.com
hydh33.com
allmyshit.rest
lovejaclyn.com
vanessaruizwriting.com
dufonddelaclasse.com
kiddee168.com
monumentalmarketsllc.com
musclegainfatloss.com
avida.info
cosmo-wellness.net
dandelionfusedigital.com
oversizeloadbanners.com
konstelle.store
sdjnsbd.com
czoqg.xyz
5p6xljjse1lq.xyz
10936.loan
primeiropasso.website
salarydetector.net
the6figureshow.com
ritzluxurytransportation.com
5145.design
web3ido.xyz
starweaverdesigns.com
cbdtz.com
sunwall.xyz
ornitv.com
curateddesignsconsulting.com
businesshairways.biz
willacloud.com
accusecures.com
hl243.com
coffellc.icu
eddrugs2018.com
lidakang.xyz
salesstorecolombia.com
ilina.xyz
partieslikethese.com
peymantasnimi.com
datthocu.xyz
cybertechsolutions.xyz
findy.guru
trybes.space
arulinks.com
yuriookinoart.com
largestjerseysstore.com
fortitude-tech.com
ywfjp.com
b1v097f2avze.xyz
abdullahnazhim.com
zhaoav111.info
cegrowing.com
llaveselmuerto.com
7477e.xyz
chabusinessloans.com
ht-brain.com
app-compound.finance
0085208.com
wewinaccidents.com
ztzfirst.xyz
shishlomarket24.biz
Signatures
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suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
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Formbook Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/2020-63-0x0000000000400000-0x000000000042F000-memory.dmp formbook behavioral1/memory/2020-64-0x000000000041F150-mapping.dmp formbook behavioral1/memory/1364-73-0x0000000000080000-0x00000000000AF000-memory.dmp formbook -
Executes dropped EXE 2 IoCs
Processes:
gdryhu.exegdryhu.exepid process 1912 gdryhu.exe 2020 gdryhu.exe -
Loads dropped DLL 3 IoCs
Processes:
scrss.exegdryhu.exepid process 2032 scrss.exe 2032 scrss.exe 1912 gdryhu.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
gdryhu.exegdryhu.exewininit.exedescription pid process target process PID 1912 set thread context of 2020 1912 gdryhu.exe gdryhu.exe PID 2020 set thread context of 1240 2020 gdryhu.exe Explorer.EXE PID 1364 set thread context of 1240 1364 wininit.exe Explorer.EXE -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 25 IoCs
Processes:
gdryhu.exewininit.exepid process 2020 gdryhu.exe 2020 gdryhu.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe 1364 wininit.exe -
Suspicious behavior: MapViewOfSection 5 IoCs
Processes:
gdryhu.exewininit.exepid process 2020 gdryhu.exe 2020 gdryhu.exe 2020 gdryhu.exe 1364 wininit.exe 1364 wininit.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
gdryhu.exewininit.exedescription pid process Token: SeDebugPrivilege 2020 gdryhu.exe Token: SeDebugPrivilege 1364 wininit.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
Explorer.EXEpid process 1240 Explorer.EXE 1240 Explorer.EXE -
Suspicious use of SendNotifyMessage 2 IoCs
Processes:
Explorer.EXEpid process 1240 Explorer.EXE 1240 Explorer.EXE -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
scrss.exegdryhu.exeExplorer.EXEwininit.exedescription pid process target process PID 2032 wrote to memory of 1912 2032 scrss.exe gdryhu.exe PID 2032 wrote to memory of 1912 2032 scrss.exe gdryhu.exe PID 2032 wrote to memory of 1912 2032 scrss.exe gdryhu.exe PID 2032 wrote to memory of 1912 2032 scrss.exe gdryhu.exe PID 1912 wrote to memory of 2020 1912 gdryhu.exe gdryhu.exe PID 1912 wrote to memory of 2020 1912 gdryhu.exe gdryhu.exe PID 1912 wrote to memory of 2020 1912 gdryhu.exe gdryhu.exe PID 1912 wrote to memory of 2020 1912 gdryhu.exe gdryhu.exe PID 1912 wrote to memory of 2020 1912 gdryhu.exe gdryhu.exe PID 1912 wrote to memory of 2020 1912 gdryhu.exe gdryhu.exe PID 1912 wrote to memory of 2020 1912 gdryhu.exe gdryhu.exe PID 1240 wrote to memory of 1364 1240 Explorer.EXE wininit.exe PID 1240 wrote to memory of 1364 1240 Explorer.EXE wininit.exe PID 1240 wrote to memory of 1364 1240 Explorer.EXE wininit.exe PID 1240 wrote to memory of 1364 1240 Explorer.EXE wininit.exe PID 1364 wrote to memory of 1728 1364 wininit.exe cmd.exe PID 1364 wrote to memory of 1728 1364 wininit.exe cmd.exe PID 1364 wrote to memory of 1728 1364 wininit.exe cmd.exe PID 1364 wrote to memory of 1728 1364 wininit.exe cmd.exe
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\scrss.exe"C:\Users\Admin\AppData\Local\Temp\scrss.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\gdryhu.exeC:\Users\Admin\AppData\Local\Temp\gdryhu.exe C:\Users\Admin\AppData\Local\Temp\ljjnophbc3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\gdryhu.exeC:\Users\Admin\AppData\Local\Temp\gdryhu.exe C:\Users\Admin\AppData\Local\Temp\ljjnophbc4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\wininit.exe"C:\Windows\SysWOW64\wininit.exe"2⤵
- Suspicious use of SetThreadContext
- 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\gdryhu.exe"3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\28xr11m9yus78zir0qFilesize
184KB
MD5c18ecccb1a5c01198e114c7817cadb41
SHA11c929b507aea94361ee10545e74d6df83bef9e8e
SHA256ce7f152e604fa9a630bc01f0fba3cdd7b3a327664a433b35217cdb758dc38c03
SHA5125c43e23b398c905581b13e19f3c116eba5dd6dd4aca94f6b9f7311668eeb3a07b8afa2704669eb61ba2d74f7e0eccf3601666e8c4dca9defb343a9d38dfbc8fa
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C:\Users\Admin\AppData\Local\Temp\gdryhu.exeFilesize
133KB
MD56cb342d81df646b9202540b45a542c7f
SHA1aa25dfbc0e0f02b9a03abb37ed1ad07823da921b
SHA25628ff489eaea3e3ac6823a03a03a34b83d407167b9cd268b6f608c6ed491e69db
SHA512f61322002fc4f5be304999866a8c35fb7d150bf1f8b24ad35c946f0cea41d433b39186f1b5f70334550fff17fd082c546d79ad43a6314a923f68a9990909f2da
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C:\Users\Admin\AppData\Local\Temp\gdryhu.exeFilesize
133KB
MD56cb342d81df646b9202540b45a542c7f
SHA1aa25dfbc0e0f02b9a03abb37ed1ad07823da921b
SHA25628ff489eaea3e3ac6823a03a03a34b83d407167b9cd268b6f608c6ed491e69db
SHA512f61322002fc4f5be304999866a8c35fb7d150bf1f8b24ad35c946f0cea41d433b39186f1b5f70334550fff17fd082c546d79ad43a6314a923f68a9990909f2da
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C:\Users\Admin\AppData\Local\Temp\gdryhu.exeFilesize
133KB
MD56cb342d81df646b9202540b45a542c7f
SHA1aa25dfbc0e0f02b9a03abb37ed1ad07823da921b
SHA25628ff489eaea3e3ac6823a03a03a34b83d407167b9cd268b6f608c6ed491e69db
SHA512f61322002fc4f5be304999866a8c35fb7d150bf1f8b24ad35c946f0cea41d433b39186f1b5f70334550fff17fd082c546d79ad43a6314a923f68a9990909f2da
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C:\Users\Admin\AppData\Local\Temp\ljjnophbcFilesize
5KB
MD5ea1f80a2a3780a11d7d48c2214377b76
SHA1a522820b83aa2b0fe231ae58fa7fc74376003bf8
SHA2563dc7dd2b1e8db2568c08e6e6eaf0c8b237df9f5a5363cc70c5a1d255741e3c91
SHA512d974929984e03cfd5b26303bed94ab9b4e61fa5bf1f1906d3e08a4cb085b35869b413b699695d0b9c19b77e67181ff29b486b785cda44b2f3043e1653c92d611
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\Users\Admin\AppData\Local\Temp\gdryhu.exeFilesize
133KB
MD56cb342d81df646b9202540b45a542c7f
SHA1aa25dfbc0e0f02b9a03abb37ed1ad07823da921b
SHA25628ff489eaea3e3ac6823a03a03a34b83d407167b9cd268b6f608c6ed491e69db
SHA512f61322002fc4f5be304999866a8c35fb7d150bf1f8b24ad35c946f0cea41d433b39186f1b5f70334550fff17fd082c546d79ad43a6314a923f68a9990909f2da
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\Users\Admin\AppData\Local\Temp\gdryhu.exeFilesize
133KB
MD56cb342d81df646b9202540b45a542c7f
SHA1aa25dfbc0e0f02b9a03abb37ed1ad07823da921b
SHA25628ff489eaea3e3ac6823a03a03a34b83d407167b9cd268b6f608c6ed491e69db
SHA512f61322002fc4f5be304999866a8c35fb7d150bf1f8b24ad35c946f0cea41d433b39186f1b5f70334550fff17fd082c546d79ad43a6314a923f68a9990909f2da
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\Users\Admin\AppData\Local\Temp\gdryhu.exeFilesize
133KB
MD56cb342d81df646b9202540b45a542c7f
SHA1aa25dfbc0e0f02b9a03abb37ed1ad07823da921b
SHA25628ff489eaea3e3ac6823a03a03a34b83d407167b9cd268b6f608c6ed491e69db
SHA512f61322002fc4f5be304999866a8c35fb7d150bf1f8b24ad35c946f0cea41d433b39186f1b5f70334550fff17fd082c546d79ad43a6314a923f68a9990909f2da
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memory/1240-76-0x0000000004B00000-0x0000000004BAE000-memory.dmpFilesize
696KB
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memory/1240-69-0x0000000004360000-0x0000000004444000-memory.dmpFilesize
912KB
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memory/1364-73-0x0000000000080000-0x00000000000AF000-memory.dmpFilesize
188KB
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memory/1364-75-0x0000000000910000-0x00000000009A3000-memory.dmpFilesize
588KB
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memory/1364-74-0x0000000001FD0000-0x00000000022D3000-memory.dmpFilesize
3.0MB
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memory/1364-72-0x0000000000A20000-0x0000000000A3A000-memory.dmpFilesize
104KB
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memory/1364-70-0x0000000000000000-mapping.dmp
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memory/1728-71-0x0000000000000000-mapping.dmp
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memory/1912-57-0x0000000000000000-mapping.dmp
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memory/2020-63-0x0000000000400000-0x000000000042F000-memory.dmpFilesize
188KB
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memory/2020-68-0x00000000001B0000-0x00000000001C4000-memory.dmpFilesize
80KB
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memory/2020-67-0x0000000000830000-0x0000000000B33000-memory.dmpFilesize
3.0MB
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memory/2020-64-0x000000000041F150-mapping.dmp
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memory/2032-54-0x0000000075221000-0x0000000075223000-memory.dmpFilesize
8KB