Analysis
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max time kernel
149s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
04-07-2022 09:06
Static task
static1
Behavioral task
behavioral1
Sample
PO04009540.exe
Resource
win7-20220414-en
General
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Target
PO04009540.exe
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Size
219KB
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MD5
0ff16682f9ece061c742b6610723a1dd
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SHA1
ed847d278ed83e3e13079a07a12b8f7a75485174
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SHA256
6187ecd59d9d6c50c32460769a8a16ad8e1051a4c2e12899b2912861be1e823d
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SHA512
6b9007ffa109fe0b9559a4efac105df7143f34b476ecf7baf1a5b3f473d9841d0a0cb6e6f9ce8d6437811ab73304455595eef5049ca12dd668f808f166611516
Malware Config
Extracted
xloader
2.6
tn61
ryliehorrall.art
mesdco.net
street-art-ink.com
sepetcin.com
stilghar.com
hawaiipooltiles.com
fuerst-von-falkennest.com
totalvirtue.com
xdk0blc0tqy6a7.life
zootowngravel.com
kreditkarten-optionde.com
6888tlbb.xyz
albertakleekai.com
travelnurseinfofinder3.life
valleyinnswat.com
secure-remove-devices.com
digitalswamy.com
www112casinova.com
medifasttrd.com
distritoxermar.com
ebwagner.com
biworker.com
0571kt.net
mjuelaw.com
buildlimitlesswealth.com
wbclips.com
session.care
museatthemill.com
pjhxsl.com
momentums6.com
electricbike.energy
accommodations.network
libroskolibris.com
sejintech.net
parkchestergardens.info
gndgame.info
arcwarp.com
aboveallonline.com
dinotacker.com
ufc188livestreamfree.com
saulomar.com
atmworldexpo.com
chooox.com
admissium.com
dacdem.com
oneruk-chandeliercleaning.com
oyster-iot.cloud
mutinybrewworks.com
yaoih.com
dmitchellpropertiesllc.com
nuoicaymosaigon.com
peacockgotv.com
nextr.xyz
bidvastil.com
shahanhan.com
goodlordy.net
banlyeojob.com
tasteatlus.com
ecotone-os.xyz
urbanartco.com
drecibo.com
davegwatkin.com
pharmiva.net
accordingtopreston.com
blizzardboy.net
Signatures
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suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
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suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
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Xloader Payload 4 IoCs
Processes:
resource yara_rule behavioral2/memory/1540-132-0x0000000000400000-0x000000000042B000-memory.dmp xloader behavioral2/memory/1540-134-0x0000000000400000-0x000000000042B000-memory.dmp xloader behavioral2/memory/2040-140-0x0000000000E00000-0x0000000000E2B000-memory.dmp xloader behavioral2/memory/2040-143-0x0000000000E00000-0x0000000000E2B000-memory.dmp xloader -
Adds policy Run key to start application 2 TTPs 2 IoCs
Processes:
wlanext.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\ZBXLDXN8UN0 = "C:\\Program Files (x86)\\Jntblp\\ThumbCache3fwtuzfp.exe" wlanext.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run wlanext.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Suspicious use of SetThreadContext 3 IoCs
Processes:
PO04009540.execvtres.exewlanext.exedescription pid process target process PID 4848 set thread context of 1540 4848 PO04009540.exe cvtres.exe PID 1540 set thread context of 3188 1540 cvtres.exe Explorer.EXE PID 2040 set thread context of 3188 2040 wlanext.exe Explorer.EXE -
Drops file in Program Files directory 1 IoCs
Processes:
wlanext.exedescription ioc process File opened for modification C:\Program Files (x86)\Jntblp\ThumbCache3fwtuzfp.exe wlanext.exe -
Processes:
wlanext.exedescription ioc process Key created \Registry\User\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 wlanext.exe -
Suspicious behavior: EnumeratesProcesses 48 IoCs
Processes:
cvtres.exewlanext.exepid process 1540 cvtres.exe 1540 cvtres.exe 1540 cvtres.exe 1540 cvtres.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Explorer.EXEpid process 3188 Explorer.EXE -
Suspicious behavior: MapViewOfSection 7 IoCs
Processes:
cvtres.exewlanext.exepid process 1540 cvtres.exe 1540 cvtres.exe 1540 cvtres.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe 2040 wlanext.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
cvtres.exewlanext.exedescription pid process Token: SeDebugPrivilege 1540 cvtres.exe Token: SeDebugPrivilege 2040 wlanext.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
PO04009540.exeExplorer.EXEwlanext.exedescription pid process target process PID 4848 wrote to memory of 1540 4848 PO04009540.exe cvtres.exe PID 4848 wrote to memory of 1540 4848 PO04009540.exe cvtres.exe PID 4848 wrote to memory of 1540 4848 PO04009540.exe cvtres.exe PID 4848 wrote to memory of 1540 4848 PO04009540.exe cvtres.exe PID 4848 wrote to memory of 1540 4848 PO04009540.exe cvtres.exe PID 4848 wrote to memory of 1540 4848 PO04009540.exe cvtres.exe PID 3188 wrote to memory of 2040 3188 Explorer.EXE wlanext.exe PID 3188 wrote to memory of 2040 3188 Explorer.EXE wlanext.exe PID 3188 wrote to memory of 2040 3188 Explorer.EXE wlanext.exe PID 2040 wrote to memory of 3000 2040 wlanext.exe cmd.exe PID 2040 wrote to memory of 3000 2040 wlanext.exe cmd.exe PID 2040 wrote to memory of 3000 2040 wlanext.exe cmd.exe PID 2040 wrote to memory of 4232 2040 wlanext.exe cmd.exe PID 2040 wrote to memory of 4232 2040 wlanext.exe cmd.exe PID 2040 wrote to memory of 4232 2040 wlanext.exe cmd.exe PID 2040 wrote to memory of 3584 2040 wlanext.exe cmd.exe PID 2040 wrote to memory of 3584 2040 wlanext.exe cmd.exe PID 2040 wrote to memory of 3584 2040 wlanext.exe cmd.exe PID 2040 wrote to memory of 3660 2040 wlanext.exe Firefox.exe PID 2040 wrote to memory of 3660 2040 wlanext.exe Firefox.exe PID 2040 wrote to memory of 3660 2040 wlanext.exe Firefox.exe
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\PO04009540.exe"C:\Users\Admin\AppData\Local\Temp\PO04009540.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\wlanext.exe"C:\Windows\SysWOW64\wlanext.exe"2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- 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 del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"3⤵
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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:\Windows\SysWOW64\cmd.exe/c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\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⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\DB1Filesize
40KB
MD5b608d407fc15adea97c26936bc6f03f6
SHA1953e7420801c76393902c0d6bb56148947e41571
SHA256b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf
SHA512cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4
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C:\Users\Admin\AppData\Local\Temp\DB1Filesize
48KB
MD5349e6eb110e34a08924d92f6b334801d
SHA1bdfb289daff51890cc71697b6322aa4b35ec9169
SHA256c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a
SHA5122a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574
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memory/1540-134-0x0000000000400000-0x000000000042B000-memory.dmpFilesize
172KB
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memory/1540-135-0x00000000017F0000-0x0000000001B3A000-memory.dmpFilesize
3.3MB
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memory/1540-136-0x0000000001390000-0x00000000013A1000-memory.dmpFilesize
68KB
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memory/1540-132-0x0000000000400000-0x000000000042B000-memory.dmpFilesize
172KB
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memory/1540-131-0x0000000000000000-mapping.dmp
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memory/2040-144-0x0000000001350000-0x00000000013E0000-memory.dmpFilesize
576KB
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memory/2040-138-0x0000000000000000-mapping.dmp
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memory/2040-140-0x0000000000E00000-0x0000000000E2B000-memory.dmpFilesize
172KB
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memory/2040-139-0x00000000004E0000-0x00000000004F7000-memory.dmpFilesize
92KB
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memory/2040-142-0x0000000001440000-0x000000000178A000-memory.dmpFilesize
3.3MB
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memory/2040-143-0x0000000000E00000-0x0000000000E2B000-memory.dmpFilesize
172KB
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memory/3000-141-0x0000000000000000-mapping.dmp
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memory/3188-145-0x0000000008A80000-0x0000000008B2F000-memory.dmpFilesize
700KB
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memory/3188-146-0x0000000008A80000-0x0000000008B2F000-memory.dmpFilesize
700KB
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memory/3188-137-0x00000000030D0000-0x0000000003231000-memory.dmpFilesize
1.4MB
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memory/3584-149-0x0000000000000000-mapping.dmp
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memory/4232-147-0x0000000000000000-mapping.dmp
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memory/4848-130-0x0000000000CE0000-0x0000000000D1A000-memory.dmpFilesize
232KB