Analysis
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max time kernel
148s -
max time network
136s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
22-06-2021 14:44
Static task
static1
Behavioral task
behavioral1
Sample
Payment Ref 24,845.docx
Resource
win7v20210410
Behavioral task
behavioral2
Sample
Payment Ref 24,845.docx
Resource
win10v20210410
General
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Target
Payment Ref 24,845.docx
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Size
10KB
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MD5
ccd4c28726088c338206933392b234cb
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SHA1
0f2a9d2e7804e793afcc6e8e7a3a561f75bf4bea
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SHA256
c92aaf449b1938cb5918e73f02936eab06b7974fa441492bea95e9c68c5e5084
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SHA512
328ce30627e667a5a3431bb6cdb127c24d8e3202a6e771b0f438022f55a4e7a743afaf4c3fb7d75875a60815427882e784f124521721fd79161dfb58712da26a
Malware Config
Extracted
formbook
4.1
http://www.dragonpalcenk.com/k8n/
foxynailserie.com
thenoyzees.com
waterrising.xyz
allmister.com
theguyscave.com
erkitap.com
spyder-club.com
raskrutisam.com
giantledlights.com
wowbeautynails.com
youmovies.site
abjms.com
enso-solutions.com
seasonalcampgroundsmn.com
lukeprater.com
mufasacapital.com
idi360.com
mask-cleaner.com
aeruswilmde.com
venkatlifecoach.com
crochetandgabbana.com
onlineshreecollection.com
gwenythportillowightman.com
nexuspropertycare.com
progress.solutions
parkerut.com
achebones.com
jiazhengfu.com
chlamydiadeetz.com
thiele-concept.com
bayareataxattorney.com
geopainterdecorators.com
makemybuild.com
headsleepinstrument.online
finevinum.com
alphaworkoutgear.com
8765pk.com
rikonchat.com
gitchat.net
showy1.net
tellurideminer.com
triliumbrewing.com
fioriapartment.com
salubrigems.com
sctsmney.com
betgobar1.com
thomaspurcell.com
araket.com
parisfilmfestival.online
treepik.com
artemisnaturalhealing.com
littlehouseofhoarders.com
buyselllm.com
levnakava.com
mygolfbetter.com
vinlancer.com
beetalkmobile.press
gocampultralightmattress.com
direk99.net
nivxros.com
cbgdenver.com
datarock.net
docondemand.net
smithvilletexashistory.com
Signatures
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Formbook Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/1272-79-0x000000000041EB40-mapping.dmp formbook behavioral1/memory/1272-78-0x0000000000400000-0x000000000042E000-memory.dmp formbook behavioral1/memory/2032-89-0x0000000000080000-0x00000000000AE000-memory.dmp formbook -
Blocklisted process makes network request 1 IoCs
Processes:
EQNEDT32.EXEflow pid process 14 944 EQNEDT32.EXE -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
Processes:
vbc.exevbc.exepid process 1156 vbc.exe 1272 vbc.exe -
Abuses OpenXML format to download file from external location 2 IoCs
Processes:
WINWORD.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar WINWORD.EXE Key opened \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Office\Common\Offline\Files\https://itsssl.com/vyQCm WINWORD.EXE -
Loads dropped DLL 4 IoCs
Processes:
EQNEDT32.EXEpid process 944 EQNEDT32.EXE 944 EQNEDT32.EXE 944 EQNEDT32.EXE 944 EQNEDT32.EXE -
Uses the VBS compiler for execution 1 TTPs
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Suspicious use of SetThreadContext 3 IoCs
Processes:
vbc.exevbc.exeraserver.exedescription pid process target process PID 1156 set thread context of 1272 1156 vbc.exe vbc.exe PID 1272 set thread context of 1216 1272 vbc.exe Explorer.EXE PID 2032 set thread context of 1216 2032 raserver.exe Explorer.EXE -
Drops file in Windows directory 1 IoCs
Processes:
WINWORD.EXEdescription ioc process File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE -
Office loads VBA resources, possible macro or embedded object present
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Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
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Processes:
WINWORD.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
WINWORD.EXEpid process 1240 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 16 IoCs
Processes:
vbc.exevbc.exeraserver.exepid process 1156 vbc.exe 1272 vbc.exe 1272 vbc.exe 2032 raserver.exe 2032 raserver.exe 2032 raserver.exe 2032 raserver.exe 2032 raserver.exe 2032 raserver.exe 2032 raserver.exe 2032 raserver.exe 2032 raserver.exe 2032 raserver.exe 2032 raserver.exe 2032 raserver.exe 2032 raserver.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Explorer.EXEpid process 1216 Explorer.EXE -
Suspicious behavior: MapViewOfSection 5 IoCs
Processes:
vbc.exeraserver.exepid process 1272 vbc.exe 1272 vbc.exe 1272 vbc.exe 2032 raserver.exe 2032 raserver.exe -
Suspicious use of AdjustPrivilegeToken 8 IoCs
Processes:
vbc.exevbc.exeraserver.exeExplorer.EXEWINWORD.EXEdescription pid process Token: SeDebugPrivilege 1156 vbc.exe Token: SeDebugPrivilege 1272 vbc.exe Token: SeDebugPrivilege 2032 raserver.exe Token: SeShutdownPrivilege 1216 Explorer.EXE Token: SeShutdownPrivilege 1240 WINWORD.EXE Token: SeShutdownPrivilege 1216 Explorer.EXE Token: SeShutdownPrivilege 1216 Explorer.EXE Token: SeShutdownPrivilege 1216 Explorer.EXE -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
WINWORD.EXEpid process 1240 WINWORD.EXE 1240 WINWORD.EXE -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
EQNEDT32.EXEWINWORD.EXEvbc.exeExplorer.EXEraserver.exedescription pid process target process PID 944 wrote to memory of 1156 944 EQNEDT32.EXE vbc.exe PID 944 wrote to memory of 1156 944 EQNEDT32.EXE vbc.exe PID 944 wrote to memory of 1156 944 EQNEDT32.EXE vbc.exe PID 944 wrote to memory of 1156 944 EQNEDT32.EXE vbc.exe PID 1240 wrote to memory of 1712 1240 WINWORD.EXE splwow64.exe PID 1240 wrote to memory of 1712 1240 WINWORD.EXE splwow64.exe PID 1240 wrote to memory of 1712 1240 WINWORD.EXE splwow64.exe PID 1240 wrote to memory of 1712 1240 WINWORD.EXE splwow64.exe PID 1156 wrote to memory of 1272 1156 vbc.exe vbc.exe PID 1156 wrote to memory of 1272 1156 vbc.exe vbc.exe PID 1156 wrote to memory of 1272 1156 vbc.exe vbc.exe PID 1156 wrote to memory of 1272 1156 vbc.exe vbc.exe PID 1156 wrote to memory of 1272 1156 vbc.exe vbc.exe PID 1156 wrote to memory of 1272 1156 vbc.exe vbc.exe PID 1156 wrote to memory of 1272 1156 vbc.exe vbc.exe PID 1216 wrote to memory of 2032 1216 Explorer.EXE raserver.exe PID 1216 wrote to memory of 2032 1216 Explorer.EXE raserver.exe PID 1216 wrote to memory of 2032 1216 Explorer.EXE raserver.exe PID 1216 wrote to memory of 2032 1216 Explorer.EXE raserver.exe PID 2032 wrote to memory of 1664 2032 raserver.exe cmd.exe PID 2032 wrote to memory of 1664 2032 raserver.exe cmd.exe PID 2032 wrote to memory of 1664 2032 raserver.exe cmd.exe PID 2032 wrote to memory of 1664 2032 raserver.exe cmd.exe
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Payment Ref 24,845.docx"2⤵
- Abuses OpenXML format to download file from external location
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122883⤵
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C:\Windows\SysWOW64\raserver.exe"C:\Windows\SysWOW64\raserver.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\Public\vbc.exe"3⤵
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C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
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C:\Users\Public\vbc.exe"C:\Users\Public\vbc.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Public\vbc.exe"C:\Users\Public\vbc.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Public\vbc.exeMD5
e7ab6f20b9320cf5f2537f2e402bb106
SHA1569f0fdbf99d05af519759f9b0bf392d8e6608ed
SHA2569f7fd0ad05c3b8f6d3945a0753b7b20fc53528cfbf7c8b4a2ab7f49795937b44
SHA5124aa8de9ac929ff3f26a7296336990584cd3e0d467a9e6da49689dc72f6ef0becb0c96a653e74213d829f88ef12c060adb0cb8f7a506e0a75565a1a073d06a50c
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C:\Users\Public\vbc.exeMD5
e7ab6f20b9320cf5f2537f2e402bb106
SHA1569f0fdbf99d05af519759f9b0bf392d8e6608ed
SHA2569f7fd0ad05c3b8f6d3945a0753b7b20fc53528cfbf7c8b4a2ab7f49795937b44
SHA5124aa8de9ac929ff3f26a7296336990584cd3e0d467a9e6da49689dc72f6ef0becb0c96a653e74213d829f88ef12c060adb0cb8f7a506e0a75565a1a073d06a50c
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C:\Users\Public\vbc.exeMD5
e7ab6f20b9320cf5f2537f2e402bb106
SHA1569f0fdbf99d05af519759f9b0bf392d8e6608ed
SHA2569f7fd0ad05c3b8f6d3945a0753b7b20fc53528cfbf7c8b4a2ab7f49795937b44
SHA5124aa8de9ac929ff3f26a7296336990584cd3e0d467a9e6da49689dc72f6ef0becb0c96a653e74213d829f88ef12c060adb0cb8f7a506e0a75565a1a073d06a50c
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\Users\Public\vbc.exeMD5
e7ab6f20b9320cf5f2537f2e402bb106
SHA1569f0fdbf99d05af519759f9b0bf392d8e6608ed
SHA2569f7fd0ad05c3b8f6d3945a0753b7b20fc53528cfbf7c8b4a2ab7f49795937b44
SHA5124aa8de9ac929ff3f26a7296336990584cd3e0d467a9e6da49689dc72f6ef0becb0c96a653e74213d829f88ef12c060adb0cb8f7a506e0a75565a1a073d06a50c
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\Users\Public\vbc.exeMD5
e7ab6f20b9320cf5f2537f2e402bb106
SHA1569f0fdbf99d05af519759f9b0bf392d8e6608ed
SHA2569f7fd0ad05c3b8f6d3945a0753b7b20fc53528cfbf7c8b4a2ab7f49795937b44
SHA5124aa8de9ac929ff3f26a7296336990584cd3e0d467a9e6da49689dc72f6ef0becb0c96a653e74213d829f88ef12c060adb0cb8f7a506e0a75565a1a073d06a50c
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\Users\Public\vbc.exeMD5
e7ab6f20b9320cf5f2537f2e402bb106
SHA1569f0fdbf99d05af519759f9b0bf392d8e6608ed
SHA2569f7fd0ad05c3b8f6d3945a0753b7b20fc53528cfbf7c8b4a2ab7f49795937b44
SHA5124aa8de9ac929ff3f26a7296336990584cd3e0d467a9e6da49689dc72f6ef0becb0c96a653e74213d829f88ef12c060adb0cb8f7a506e0a75565a1a073d06a50c
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\Users\Public\vbc.exeMD5
e7ab6f20b9320cf5f2537f2e402bb106
SHA1569f0fdbf99d05af519759f9b0bf392d8e6608ed
SHA2569f7fd0ad05c3b8f6d3945a0753b7b20fc53528cfbf7c8b4a2ab7f49795937b44
SHA5124aa8de9ac929ff3f26a7296336990584cd3e0d467a9e6da49689dc72f6ef0becb0c96a653e74213d829f88ef12c060adb0cb8f7a506e0a75565a1a073d06a50c
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memory/944-62-0x00000000752B1000-0x00000000752B3000-memory.dmpFilesize
8KB
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memory/1156-76-0x0000000005760000-0x00000000057D9000-memory.dmpFilesize
484KB
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memory/1156-77-0x0000000000AF0000-0x0000000000B2D000-memory.dmpFilesize
244KB
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memory/1156-75-0x0000000000290000-0x00000000002A0000-memory.dmpFilesize
64KB
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memory/1156-70-0x0000000000950000-0x0000000000951000-memory.dmpFilesize
4KB
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memory/1156-67-0x0000000000000000-mapping.dmp
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memory/1156-73-0x00000000043A0000-0x00000000043A1000-memory.dmpFilesize
4KB
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memory/1216-93-0x0000000004C00000-0x0000000004D6C000-memory.dmpFilesize
1.4MB
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memory/1216-84-0x0000000004A70000-0x0000000004BF7000-memory.dmpFilesize
1.5MB
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memory/1240-61-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1240-59-0x0000000072141000-0x0000000072144000-memory.dmpFilesize
12KB
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memory/1240-60-0x000000006FBC1000-0x000000006FBC3000-memory.dmpFilesize
8KB
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memory/1240-92-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1272-79-0x000000000041EB40-mapping.dmp
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memory/1272-78-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/1272-82-0x0000000000BE0000-0x0000000000EE3000-memory.dmpFilesize
3.0MB
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memory/1272-83-0x0000000000140000-0x0000000000154000-memory.dmpFilesize
80KB
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memory/1664-87-0x0000000000000000-mapping.dmp
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memory/1712-74-0x000007FEFB591000-0x000007FEFB593000-memory.dmpFilesize
8KB
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memory/1712-72-0x0000000000000000-mapping.dmp
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memory/2032-88-0x0000000000C70000-0x0000000000C8C000-memory.dmpFilesize
112KB
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memory/2032-89-0x0000000000080000-0x00000000000AE000-memory.dmpFilesize
184KB
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memory/2032-90-0x0000000002090000-0x0000000002393000-memory.dmpFilesize
3.0MB
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memory/2032-91-0x0000000000450000-0x00000000004E3000-memory.dmpFilesize
588KB
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memory/2032-85-0x0000000000000000-mapping.dmp