Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
30-05-2022 13:05
Static task
static1
Behavioral task
behavioral1
Sample
triage_dropped_file.exe
Resource
win7-20220414-en
General
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Target
triage_dropped_file.exe
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Size
798KB
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MD5
fa6cb9677ff2254615166747668a72ed
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SHA1
e784bfd8f5f4514569205bb535ed8bc36ab47f28
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SHA256
4fe26ebfc5412205231040de3bf8f865da141f2c9c5c2c809e4bf6ceced43e55
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SHA512
e6e05225ecbf3e0157bc5b55980c17a7e9f61d36aadb172ae753b140c69b10f3e58d3a020e4225a25596b7aae586409e7c59e4ab2046e134ce5ccfc281484617
Malware Config
Extracted
xloader
2.6
be4o
laboratoriobioixcha.com
tictocperushop.online
wild-oceans.com
belaruscountry.com
kicktmall.com
fitcoinweb.tech
mores.one
gogear.one
gxrcksy.com
samrcq.com
impossible-icecream.com
bravesxx.com
bookchainart.com
sleepsolutionsofmboro.com
ocbrazilbusinessclub.com
advisor76.xyz
xitaotech.com
mgsdtytifgf3414.xyz
johnson-brown.net
cr3drt.com
virtualtourpro.store
transporteriocristal.com
fjbingjiang.com
minecraftrojectx.site
ttrcb.com
sexlarab.com
cxzczc2.online
doorsmm.com
weisbergiegal.com
skythinks.com
schoolsuperaty.com
swampbucketkids.com
networklogicsa.com
businessevs.com
gulfcoastclinicchiro.com
milliards.xyz
moviesquery.com
cycletostack.com
c0wkvo.com
inkingthings.net
cookvillecampgroundvt.com
rajeshprinters.com
binge-bane.biz
ginger9632-voice.cloud
1nfo-post.com
unta.xyz
liuhumu.com
khandaia.info
ha01qnscvts0l.xyz
liert.site
allflowmedia.com
6ibnuj9t.xyz
embravewise.com
responsabilities.com
apexges.com
ola-speechtherapy.com
pristinefarmlands.com
adaraateristiayote.store
journeyhomemeditation.com
96238.top
nosipokip.site
itt-service.com
bw590jumpb.xyz
relieveyourdog.com
qiyeweiiliaoo0428.com
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 5 IoCs
Processes:
resource yara_rule behavioral2/memory/4156-132-0x0000000000400000-0x000000000042B000-memory.dmp xloader behavioral2/memory/4156-133-0x000000000041F270-mapping.dmp xloader behavioral2/memory/4156-140-0x0000000000400000-0x000000000042B000-memory.dmp xloader behavioral2/memory/3688-143-0x00000000011A0000-0x00000000011CB000-memory.dmp xloader behavioral2/memory/3688-147-0x00000000011A0000-0x00000000011CB000-memory.dmp xloader -
Adds policy Run key to start application 2 TTPs 2 IoCs
Processes:
cscript.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run cscript.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\QTXLMBN8X = "C:\\Program Files (x86)\\Ncx4\\nbc4ane87nehalx8.exe" cscript.exe -
Blocklisted process makes network request 1 IoCs
Processes:
cscript.exeflow pid process 40 3688 cscript.exe -
Executes dropped EXE 1 IoCs
Processes:
nbc4ane87nehalx8.exepid process 2836 nbc4ane87nehalx8.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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Uses the VBS compiler for execution 1 TTPs
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Suspicious use of SetThreadContext 3 IoCs
Processes:
triage_dropped_file.exevbc.execscript.exedescription pid process target process PID 2448 set thread context of 4156 2448 triage_dropped_file.exe vbc.exe PID 4156 set thread context of 3164 4156 vbc.exe Explorer.EXE PID 3688 set thread context of 3164 3688 cscript.exe Explorer.EXE -
Drops file in Program Files directory 4 IoCs
Processes:
cscript.exeExplorer.EXEdescription ioc process File opened for modification C:\Program Files (x86)\Ncx4\nbc4ane87nehalx8.exe cscript.exe File opened for modification C:\Program Files (x86)\Ncx4 Explorer.EXE File created C:\Program Files (x86)\Ncx4\nbc4ane87nehalx8.exe Explorer.EXE File opened for modification C:\Program Files (x86)\Ncx4\nbc4ane87nehalx8.exe Explorer.EXE -
Processes:
cscript.exedescription ioc process Key created \Registry\User\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 cscript.exe -
Suspicious behavior: EnumeratesProcesses 56 IoCs
Processes:
vbc.execscript.exepid process 4156 vbc.exe 4156 vbc.exe 4156 vbc.exe 4156 vbc.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Explorer.EXEpid process 3164 Explorer.EXE -
Suspicious behavior: MapViewOfSection 7 IoCs
Processes:
vbc.execscript.exepid process 4156 vbc.exe 4156 vbc.exe 4156 vbc.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe 3688 cscript.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
vbc.execscript.exeExplorer.EXEdescription pid process Token: SeDebugPrivilege 4156 vbc.exe Token: SeDebugPrivilege 3688 cscript.exe Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
triage_dropped_file.exeExplorer.EXEcscript.exedescription pid process target process PID 2448 wrote to memory of 4156 2448 triage_dropped_file.exe vbc.exe PID 2448 wrote to memory of 4156 2448 triage_dropped_file.exe vbc.exe PID 2448 wrote to memory of 4156 2448 triage_dropped_file.exe vbc.exe PID 2448 wrote to memory of 4156 2448 triage_dropped_file.exe vbc.exe PID 2448 wrote to memory of 4156 2448 triage_dropped_file.exe vbc.exe PID 2448 wrote to memory of 4156 2448 triage_dropped_file.exe vbc.exe PID 3164 wrote to memory of 3688 3164 Explorer.EXE cscript.exe PID 3164 wrote to memory of 3688 3164 Explorer.EXE cscript.exe PID 3164 wrote to memory of 3688 3164 Explorer.EXE cscript.exe PID 3688 wrote to memory of 1240 3688 cscript.exe cmd.exe PID 3688 wrote to memory of 1240 3688 cscript.exe cmd.exe PID 3688 wrote to memory of 1240 3688 cscript.exe cmd.exe PID 3688 wrote to memory of 4400 3688 cscript.exe cmd.exe PID 3688 wrote to memory of 4400 3688 cscript.exe cmd.exe PID 3688 wrote to memory of 4400 3688 cscript.exe cmd.exe PID 3688 wrote to memory of 2064 3688 cscript.exe cmd.exe PID 3688 wrote to memory of 2064 3688 cscript.exe cmd.exe PID 3688 wrote to memory of 2064 3688 cscript.exe cmd.exe PID 3688 wrote to memory of 4924 3688 cscript.exe Firefox.exe PID 3688 wrote to memory of 4924 3688 cscript.exe Firefox.exe PID 3688 wrote to memory of 4924 3688 cscript.exe Firefox.exe PID 3164 wrote to memory of 2836 3164 Explorer.EXE nbc4ane87nehalx8.exe PID 3164 wrote to memory of 2836 3164 Explorer.EXE nbc4ane87nehalx8.exe PID 3164 wrote to memory of 2836 3164 Explorer.EXE nbc4ane87nehalx8.exe -
System policy modification 1 TTPs 1 IoCs
Processes:
cscript.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer cscript.exe
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cscript.exe"C:\Windows\SysWOW64\cscript.exe"2⤵
- Adds policy Run key to start application
- Blocklisted process makes network request
- 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
- System policy modification
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C:\Windows\SysWOW64\cmd.exe/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.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⤵
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C:\Program Files (x86)\Ncx4\nbc4ane87nehalx8.exe"C:\Program Files (x86)\Ncx4\nbc4ane87nehalx8.exe"2⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Program Files (x86)\Ncx4\nbc4ane87nehalx8.exeFilesize
2.5MB
MD59a4d8c6a3e71739c3657a18ceef2117d
SHA11ff6af964ff1418656fcbcf2693a984a02cd581a
SHA25633fd95a47800d68452d614a4aaa56dd9c4dd97cddfadf0fb2531210da3c1d412
SHA512295619ac15e7f7575c03c200da66cb9b248ccdba79bcd1b4be261fb0951947681ce7bc29f51b829a82983f50564b5557464821685f21cb641ae02252575abf67
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C:\Program Files (x86)\Ncx4\nbc4ane87nehalx8.exeFilesize
2.5MB
MD59a4d8c6a3e71739c3657a18ceef2117d
SHA11ff6af964ff1418656fcbcf2693a984a02cd581a
SHA25633fd95a47800d68452d614a4aaa56dd9c4dd97cddfadf0fb2531210da3c1d412
SHA512295619ac15e7f7575c03c200da66cb9b248ccdba79bcd1b4be261fb0951947681ce7bc29f51b829a82983f50564b5557464821685f21cb641ae02252575abf67
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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/1240-141-0x0000000000000000-mapping.dmp
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memory/2064-151-0x0000000000000000-mapping.dmp
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memory/2448-134-0x00007FFE537D0000-0x00007FFE54291000-memory.dmpFilesize
10.8MB
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memory/2448-130-0x0000000000AB0000-0x0000000000B7C000-memory.dmpFilesize
816KB
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memory/2448-131-0x00007FFE537D0000-0x00007FFE54291000-memory.dmpFilesize
10.8MB
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memory/2836-153-0x0000000000000000-mapping.dmp
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memory/3164-138-0x0000000008620000-0x00000000086FF000-memory.dmpFilesize
892KB
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memory/3164-146-0x0000000002E80000-0x0000000002F31000-memory.dmpFilesize
708KB
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memory/3164-148-0x0000000002E80000-0x0000000002F31000-memory.dmpFilesize
708KB
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memory/3688-139-0x0000000000000000-mapping.dmp
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memory/3688-145-0x0000000003020000-0x00000000030B0000-memory.dmpFilesize
576KB
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memory/3688-144-0x00000000031C0000-0x000000000350A000-memory.dmpFilesize
3.3MB
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memory/3688-147-0x00000000011A0000-0x00000000011CB000-memory.dmpFilesize
172KB
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memory/3688-143-0x00000000011A0000-0x00000000011CB000-memory.dmpFilesize
172KB
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memory/3688-142-0x0000000000290000-0x00000000002B7000-memory.dmpFilesize
156KB
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memory/4156-137-0x0000000001590000-0x00000000015A1000-memory.dmpFilesize
68KB
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memory/4156-140-0x0000000000400000-0x000000000042B000-memory.dmpFilesize
172KB
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memory/4156-136-0x0000000001A40000-0x0000000001D8A000-memory.dmpFilesize
3.3MB
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memory/4156-133-0x000000000041F270-mapping.dmp
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memory/4156-132-0x0000000000400000-0x000000000042B000-memory.dmpFilesize
172KB
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memory/4400-149-0x0000000000000000-mapping.dmp