Analysis
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max time kernel
151s -
max time network
132s -
platform
windows7_x64 -
resource
win7-en-20210920 -
submitted
13-10-2021 18:42
Static task
static1
Behavioral task
behavioral1
Sample
OAa3nu595dA7afB.exe
Resource
win7-en-20210920
General
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Target
OAa3nu595dA7afB.exe
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Size
553KB
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MD5
1823dce627d29f5d4985501267f7ad9f
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SHA1
1ce10042fccf2c8fcb2b0a93723f24b6c3b4ffb3
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SHA256
c14ba2023f89dc57df157690e40042b8b090906257c59b6e5834b2212cd3142e
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SHA512
88421fa99979a5ed7d55a2dccffbb96af3e72539e5dba61bf7860d2321a2f79deb5e9aae65e3fb9e5a17998a60d87abbbdc7b0dc495c991b4a3813a2ef8edb72
Malware Config
Extracted
formbook
4.1
dn7r
http://www.yourherogarden.net/dn7r/
eventphotographerdfw.com
thehalalcoinstaking.com
philipfaziofineart.com
intercoh.com
gaiaseyephotography.com
chatbotforrealestate.com
lovelancemg.com
marlieskasberger.com
elcongoenespanol.info
lepirecredit.com
distribution-concept.com
e99game.com
exit11festival.com
twodollartoothbrushclub.com
cocktailsandlawn.com
performimprove.network
24horas-telefono-11840.com
cosmossify.com
kellenleote.com
perovskite.energy
crosschain.services
xiwanghe.com
mollycayton.com
bonipay.com
uuwyxc.com
viberiokno-online.com
mobceo.com
menzelna.com
tiffaniefoster.com
premiumautowesthartford.com
ownhome.house
bestmartinshop.com
splashstoreofficial.com
guidemining.com
ecshopdemo.com
bestprinting1.com
s-circle2020.com
ncagency.info
easydigitalzone.com
reikiforthecollective.com
theknottteam.com
evolvedpixel.com
japxo.online
ryansqualityrenovations.com
dentimagenquito.net
pantherprints.co.uk
apoporangi.com
thietkemietvuon.net
ifernshop.com
casaruralesgranada.com
camp-3saumons.com
eddsucks.com
blwcd.com
deldlab.com
susanperb.com
autosanitizingsolutions.com
femhouse.com
ironcageclash.com
thekinghealer.com
shaghayeghbovand.com
advertfaces.com
lonriley.com
mased-world.online
mythicspacex.com
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/1112-62-0x0000000000400000-0x000000000042F000-memory.dmp formbook behavioral1/memory/1112-63-0x000000000041F200-mapping.dmp formbook behavioral1/memory/428-70-0x0000000000080000-0x00000000000AF000-memory.dmp formbook -
Deletes itself 1 IoCs
Processes:
cmd.exepid process 1164 cmd.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
OAa3nu595dA7afB.exeOAa3nu595dA7afB.execmd.exedescription pid process target process PID 1356 set thread context of 1112 1356 OAa3nu595dA7afB.exe OAa3nu595dA7afB.exe PID 1112 set thread context of 1264 1112 OAa3nu595dA7afB.exe Explorer.EXE PID 428 set thread context of 1264 428 cmd.exe Explorer.EXE -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
OAa3nu595dA7afB.execmd.exepid process 1112 OAa3nu595dA7afB.exe 1112 OAa3nu595dA7afB.exe 428 cmd.exe 428 cmd.exe 428 cmd.exe 428 cmd.exe 428 cmd.exe 428 cmd.exe 428 cmd.exe 428 cmd.exe 428 cmd.exe 428 cmd.exe 428 cmd.exe 428 cmd.exe 428 cmd.exe 428 cmd.exe 428 cmd.exe 428 cmd.exe 428 cmd.exe 428 cmd.exe -
Suspicious behavior: MapViewOfSection 5 IoCs
Processes:
OAa3nu595dA7afB.execmd.exepid process 1112 OAa3nu595dA7afB.exe 1112 OAa3nu595dA7afB.exe 1112 OAa3nu595dA7afB.exe 428 cmd.exe 428 cmd.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
OAa3nu595dA7afB.execmd.exedescription pid process Token: SeDebugPrivilege 1112 OAa3nu595dA7afB.exe Token: SeDebugPrivilege 428 cmd.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
Explorer.EXEpid process 1264 Explorer.EXE 1264 Explorer.EXE -
Suspicious use of SendNotifyMessage 2 IoCs
Processes:
Explorer.EXEpid process 1264 Explorer.EXE 1264 Explorer.EXE -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
OAa3nu595dA7afB.exeExplorer.EXEcmd.exedescription pid process target process PID 1356 wrote to memory of 1112 1356 OAa3nu595dA7afB.exe OAa3nu595dA7afB.exe PID 1356 wrote to memory of 1112 1356 OAa3nu595dA7afB.exe OAa3nu595dA7afB.exe PID 1356 wrote to memory of 1112 1356 OAa3nu595dA7afB.exe OAa3nu595dA7afB.exe PID 1356 wrote to memory of 1112 1356 OAa3nu595dA7afB.exe OAa3nu595dA7afB.exe PID 1356 wrote to memory of 1112 1356 OAa3nu595dA7afB.exe OAa3nu595dA7afB.exe PID 1356 wrote to memory of 1112 1356 OAa3nu595dA7afB.exe OAa3nu595dA7afB.exe PID 1356 wrote to memory of 1112 1356 OAa3nu595dA7afB.exe OAa3nu595dA7afB.exe PID 1264 wrote to memory of 428 1264 Explorer.EXE cmd.exe PID 1264 wrote to memory of 428 1264 Explorer.EXE cmd.exe PID 1264 wrote to memory of 428 1264 Explorer.EXE cmd.exe PID 1264 wrote to memory of 428 1264 Explorer.EXE cmd.exe PID 428 wrote to memory of 1164 428 cmd.exe cmd.exe PID 428 wrote to memory of 1164 428 cmd.exe cmd.exe PID 428 wrote to memory of 1164 428 cmd.exe cmd.exe PID 428 wrote to memory of 1164 428 cmd.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\OAa3nu595dA7afB.exe"C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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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
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C:\Windows\SysWOW64\cmd.exe/c del "C:\Users\Admin\AppData\Local\Temp\OAa3nu595dA7afB.exe"3⤵
- Deletes itself
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/428-68-0x0000000000000000-mapping.dmp
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memory/428-73-0x0000000001E10000-0x0000000001EA4000-memory.dmpFilesize
592KB
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memory/428-72-0x0000000001F30000-0x0000000002233000-memory.dmpFilesize
3.0MB
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memory/428-70-0x0000000000080000-0x00000000000AF000-memory.dmpFilesize
188KB
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memory/428-69-0x000000004A8B0000-0x000000004A8FC000-memory.dmpFilesize
304KB
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memory/1112-63-0x000000000041F200-mapping.dmp
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memory/1112-60-0x0000000000400000-0x000000000042F000-memory.dmpFilesize
188KB
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memory/1112-62-0x0000000000400000-0x000000000042F000-memory.dmpFilesize
188KB
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memory/1112-61-0x0000000000400000-0x000000000042F000-memory.dmpFilesize
188KB
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memory/1112-65-0x0000000000890000-0x0000000000B93000-memory.dmpFilesize
3.0MB
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memory/1112-66-0x0000000000130000-0x0000000000145000-memory.dmpFilesize
84KB
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memory/1164-71-0x0000000000000000-mapping.dmp
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memory/1264-67-0x00000000041D0000-0x0000000004326000-memory.dmpFilesize
1.3MB
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memory/1264-74-0x0000000006AF0000-0x0000000006C53000-memory.dmpFilesize
1.4MB
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memory/1356-54-0x0000000001120000-0x0000000001121000-memory.dmpFilesize
4KB
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memory/1356-59-0x00000000054C0000-0x0000000005536000-memory.dmpFilesize
472KB
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memory/1356-58-0x0000000000540000-0x0000000000545000-memory.dmpFilesize
20KB
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memory/1356-57-0x0000000004D20000-0x0000000004D21000-memory.dmpFilesize
4KB
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memory/1356-56-0x0000000076A81000-0x0000000076A83000-memory.dmpFilesize
8KB