Analysis
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max time kernel
152s -
max time network
182s -
platform
windows7_x64 -
resource
win7-en-20210920 -
submitted
15-10-2021 19:36
Static task
static1
Behavioral task
behavioral1
Sample
Unpaid invoice.exe
Resource
win7-en-20210920
General
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Target
Unpaid invoice.exe
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Size
450KB
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MD5
98d2d5ac3bd493d77f0a7300a43d045b
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SHA1
7fdd3b9b76f2c40df10def7ec3aa25c4fb192ec7
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SHA256
1bbc8a34b7590c1593c5a79a8d0f93b17a162f44893c37aa11e4cb9e0e2d96bf
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SHA512
32b7aa0518d6b41864d0f6f90d397cd377244b8f6af07178252aeb5b7ecf57e347c2aa2a3a4d94327d799bfcf8fe87b5c8164b0102c64258fd55a4c024ad0ef3
Malware Config
Extracted
xloader
2.5
b2c0
http://www.thesewhitevvalls.com/b2c0/
bjyxszd520.xyz
hsvfingerprinting.com
elliotpioneer.com
bf396.com
chinaopedia.com
6233v.com
shopeuphoricapparel.com
loccssol.store
truefictionpictures.com
playstarexch.com
peruviancoffee.store
shobhajoshi.com
philme.net
avito-rules.com
independencehomecenters.com
atp-cayenne.com
invetorsbank.com
sasanos.com
scentfreebnb.com
catfuid.com
sunshinefamilysupport.com
madison-co-atty.net
newhousebr.com
newstodayupdate.com
kamalaanjna.com
itpronto.com
hi-loentertainment.com
sadpartyrentals.com
vertuminy.com
khomayphotocopy.club
roleconstructora.com
cottonhome.online
starsspell.com
bedrijfs-kledingshop.com
aydeyahouse.com
miaintervista.com
taolemix.com
lnagvv.space
bjmobi.com
collabkc.art
onayli.net
ecostainable.com
vi88.info
brightlifeprochoice.com
taoluzhibo.info
techgobble.com
ideemimarlikinsaat.com
andajzx.com
shineshaft.website
arroundworld.com
reyuzed.com
emilfaucets.com
lumberjackguitarloops.com
pearl-interior.com
altitudebc.com
cqjiubai.com
kutahyaescortbayanlarim.xyz
metalworkingadditives.online
unasolucioendesa.com
andrewfjohnston.com
visionmark.net
dxxlewis.com
carts-amazon.com
anadolu.academy
Signatures
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Xloader Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/756-56-0x0000000000400000-0x0000000000429000-memory.dmp xloader behavioral1/memory/756-57-0x000000000041D4C0-mapping.dmp xloader behavioral1/memory/1284-65-0x0000000000120000-0x0000000000149000-memory.dmp xloader -
Deletes itself 1 IoCs
Processes:
cmd.exepid process 288 cmd.exe -
Loads dropped DLL 1 IoCs
Processes:
Unpaid invoice.exepid process 1108 Unpaid invoice.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
Unpaid invoice.exeUnpaid invoice.exemsiexec.exedescription pid process target process PID 1108 set thread context of 756 1108 Unpaid invoice.exe Unpaid invoice.exe PID 756 set thread context of 1336 756 Unpaid invoice.exe Explorer.EXE PID 1284 set thread context of 1336 1284 msiexec.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 29 IoCs
Processes:
Unpaid invoice.exemsiexec.exepid process 756 Unpaid invoice.exe 756 Unpaid invoice.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe 1284 msiexec.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Explorer.EXEpid process 1336 Explorer.EXE -
Suspicious behavior: MapViewOfSection 5 IoCs
Processes:
Unpaid invoice.exemsiexec.exepid process 756 Unpaid invoice.exe 756 Unpaid invoice.exe 756 Unpaid invoice.exe 1284 msiexec.exe 1284 msiexec.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Unpaid invoice.exemsiexec.exedescription pid process Token: SeDebugPrivilege 756 Unpaid invoice.exe Token: SeDebugPrivilege 1284 msiexec.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
Explorer.EXEpid process 1336 Explorer.EXE 1336 Explorer.EXE -
Suspicious use of SendNotifyMessage 2 IoCs
Processes:
Explorer.EXEpid process 1336 Explorer.EXE 1336 Explorer.EXE -
Suspicious use of WriteProcessMemory 18 IoCs
Processes:
Unpaid invoice.exeExplorer.EXEmsiexec.exedescription pid process target process PID 1108 wrote to memory of 756 1108 Unpaid invoice.exe Unpaid invoice.exe PID 1108 wrote to memory of 756 1108 Unpaid invoice.exe Unpaid invoice.exe PID 1108 wrote to memory of 756 1108 Unpaid invoice.exe Unpaid invoice.exe PID 1108 wrote to memory of 756 1108 Unpaid invoice.exe Unpaid invoice.exe PID 1108 wrote to memory of 756 1108 Unpaid invoice.exe Unpaid invoice.exe PID 1108 wrote to memory of 756 1108 Unpaid invoice.exe Unpaid invoice.exe PID 1108 wrote to memory of 756 1108 Unpaid invoice.exe Unpaid invoice.exe PID 1336 wrote to memory of 1284 1336 Explorer.EXE msiexec.exe PID 1336 wrote to memory of 1284 1336 Explorer.EXE msiexec.exe PID 1336 wrote to memory of 1284 1336 Explorer.EXE msiexec.exe PID 1336 wrote to memory of 1284 1336 Explorer.EXE msiexec.exe PID 1336 wrote to memory of 1284 1336 Explorer.EXE msiexec.exe PID 1336 wrote to memory of 1284 1336 Explorer.EXE msiexec.exe PID 1336 wrote to memory of 1284 1336 Explorer.EXE msiexec.exe PID 1284 wrote to memory of 288 1284 msiexec.exe cmd.exe PID 1284 wrote to memory of 288 1284 msiexec.exe cmd.exe PID 1284 wrote to memory of 288 1284 msiexec.exe cmd.exe PID 1284 wrote to memory of 288 1284 msiexec.exe cmd.exe
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\msiexec.exe"C:\Windows\SysWOW64\msiexec.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\Unpaid invoice.exe"3⤵
- Deletes itself
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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\Users\Admin\AppData\Local\Temp\nsy5AED.tmp\gyalquzbu.dllMD5
a8caa6d267951ad22e835233b5e50c46
SHA145c722c5958d99727a95d30eaa3032203d1f4ab2
SHA256db7b70b0734285b8d9a1f3617e55603b0cb649d9bf0b7fbf8988c44e684f4e76
SHA5129ee74bf576554210f8923dda8aa28f6dc7f3c5aa52da7b48a94beaf56cb4e27f1c3d0387cc9116e467631bc13c0e743341129bffa84b9db16ace1248a53b4cd7
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memory/288-66-0x0000000000000000-mapping.dmp
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memory/756-56-0x0000000000400000-0x0000000000429000-memory.dmpFilesize
164KB
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memory/756-57-0x000000000041D4C0-mapping.dmp
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memory/756-60-0x0000000000350000-0x0000000000361000-memory.dmpFilesize
68KB
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memory/756-59-0x00000000008F0000-0x0000000000BF3000-memory.dmpFilesize
3.0MB
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memory/1108-54-0x0000000075BF1000-0x0000000075BF3000-memory.dmpFilesize
8KB
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memory/1284-65-0x0000000000120000-0x0000000000149000-memory.dmpFilesize
164KB
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memory/1284-64-0x0000000000340000-0x0000000000354000-memory.dmpFilesize
80KB
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memory/1284-62-0x0000000000000000-mapping.dmp
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memory/1284-67-0x00000000022A0000-0x00000000025A3000-memory.dmpFilesize
3.0MB
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memory/1284-68-0x00000000009F0000-0x0000000000A80000-memory.dmpFilesize
576KB
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memory/1336-61-0x0000000007050000-0x00000000071E8000-memory.dmpFilesize
1.6MB
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memory/1336-69-0x00000000068F0000-0x00000000069C2000-memory.dmpFilesize
840KB