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Overview
overview
10Static
static
10ec4f09f82d...d3.exe
windows10-2004-x64
10efd97b1038...ea4.js
windows10-2004-x64
3emotet_exe...04.exe
windows10-2004-x64
10emotet_exe...23.exe
windows10-2004-x64
10eupdate.exe
windows10-2004-x64
7f4f47c67be...3f.exe
windows10-2004-x64
10fb5d110ced...9c.exe
windows10-2004-x64
6fee15285c3...35.exe
windows10-2004-x64
10file(1).exe
windows10-2004-x64
1file.exe
windows10-2004-x64
7gjMEi6eG.exe
windows10-2004-x64
10good.exe
windows10-2004-x64
10hyundai st...1).exe
windows10-2004-x64
10hyundai st...10.exe
windows10-2004-x64
10infected d...er.exe
windows10-2004-x64
10inps_979.xls
windows10-2004-x64
1jar.jar
windows10-2004-x64
10june9.dll
windows10-2004-x64
10mouse_2.exe
windows10-2004-x64
10oof.exe
windows10-2004-x64
3openme.exe
windows10-2004-x64
10ou55sg33s_1.exe
windows10-2004-x64
10senate.dll
windows10-2004-x64
10starticon3.exe
windows10-2004-x64
10str.dll
windows10-2004-x64
10svchost.exe
windows10-2004-x64
10update.exe
windows10-2004-x64
10vir1.xlsx
windows10-2004-x64
1wwf[1].exe
windows10-2004-x64
10xNet.dll
windows10-2004-x64
1전산 및...��.exe
windows10-2004-x64
10전산 및...�1.exe
windows10-2004-x64
10Analysis
-
max time kernel
141s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
04/12/2024, 19:31
Static task
static1
Behavioral task
behavioral1
Sample
ec4f09f82d932cdd40700a74a8875b73a783cbaab1f313286adf615a5336d7d3.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral2
Sample
efd97b1038e063779fb32a3ab35adc481679a5c6c8e3f4f69c44987ff08b6ea4.js
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
emotet_exe_e1_ef536781ae8be4b67a7fb8aa562d84994ad250d97d5606115b6f4e6e2992363f_2020-11-17__174504.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral4
Sample
emotet_exe_e3_93074e9fbde60e4182f5d763bac7762f2d4e2fcf9baf457b6f12e7696b3562c1_2020-11-17__182823.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral5
Sample
eupdate.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral6
Sample
f4f47c67be61d386e7d757ff89825fa630dd5cc4ed600b5471f9cc18c21e983f.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral7
Sample
fb5d110ced698b06c6cb8c7112792a2d37c579dcd9bde808310cb8dc88e16d9c.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral8
Sample
fee15285c36fa7e28e28c7bb9b4cd3940ef12b9907de59d11ab6e2376416d35.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral9
Sample
file(1).exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral10
Sample
file.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral11
Sample
gjMEi6eG.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral12
Sample
good.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral13
Sample
hyundai steel-pipe- job 8010(1).exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral14
Sample
hyundai steel-pipe- job 8010.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral15
Sample
infected dot net installer.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral16
Sample
inps_979.xls
Resource
win10v2004-20241007-en
Behavioral task
behavioral17
Sample
jar.jar
Resource
win10v2004-20241007-en
Behavioral task
behavioral18
Sample
june9.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral19
Sample
mouse_2.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral20
Sample
oof.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral21
Sample
openme.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral22
Sample
ou55sg33s_1.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral23
Sample
senate.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral24
Sample
starticon3.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral25
Sample
str.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral26
Sample
svchost.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral27
Sample
update.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral28
Sample
vir1.xlsx
Resource
win10v2004-20241007-en
Behavioral task
behavioral29
Sample
wwf[1].exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral30
Sample
xNet.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral31
Sample
전산 및 비전산자료 보존 요청서(20200525)_꼭 확인하시고 자료보존해주세요.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral32
Sample
전산 및 비전산자료 보존 요청서(20200525)_꼭 확인하시고 자료보존해주세요1.exe
Resource
win10v2004-20241007-en
General
-
Target
starticon3.exe
-
Size
725KB
-
MD5
e8bbb6d921b79101aea7d906a1798f3d
-
SHA1
4fd59822cdedd1b194d27d2c01a9cde6222de1bb
-
SHA256
7bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd
-
SHA512
c525e07c65c7be43aa90568f98253b397919cd0f597b1ba446fed51a578ca1aae4c93fa59e1345b20e3216a676ba35c89c67d6ced6bea68da44a53989fa4d656
-
SSDEEP
12288:O7q+wuEST6sxwGCwuwn5vE2nyrJppqrNSP9kdrzA9PpXtuRt2BoivOnJztu3vdyB:CqrFvGjF5iZqrQag1t7+nJztuHi
Malware Config
Extracted
djvu
http://ring1.ug/As73yhsyU34578hxxx/SDf565g/get.php
-
extension
.coot
-
offline_id
MRQ5kb5Z12tWuP3e25YoRt4PRDrJd2yuI3coott1
-
payload_url
http://ring1.ug/files/cost/updatewin1.exe
http://ring1.ug/files/cost/updatewin2.exe
http://ring1.ug/files/cost/updatewin.exe
http://ring1.ug/files/cost/3.exe
http://ring1.ug/files/cost/4.exe
http://ring1.ug/files/cost/5.exe
-
ransomnote
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Signatures
-
Detected Djvu ransomware 10 IoCs
resource yara_rule behavioral24/memory/1792-2-0x0000000006E40000-0x0000000006F5A000-memory.dmp family_djvu behavioral24/memory/1792-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral24/memory/1792-12-0x0000000000400000-0x0000000004F0E000-memory.dmp family_djvu behavioral24/memory/1792-15-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral24/memory/1792-14-0x0000000006E40000-0x0000000006F5A000-memory.dmp family_djvu behavioral24/memory/1792-13-0x0000000000400000-0x0000000004F0E000-memory.dmp family_djvu behavioral24/memory/4432-21-0x0000000000400000-0x0000000004F0E000-memory.dmp family_djvu behavioral24/memory/4432-22-0x0000000000400000-0x0000000004F0E000-memory.dmp family_djvu behavioral24/memory/4432-24-0x0000000000400000-0x0000000004F0E000-memory.dmp family_djvu behavioral24/memory/4432-26-0x0000000000400000-0x0000000004F0E000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
-
Djvu family
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation starticon3.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 2304 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\7a476725-87dd-470e-896f-17a56effaee5\\starticon3.exe\" --AutoStart" starticon3.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 27 api.2ip.ua 16 api.2ip.ua 17 api.2ip.ua -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Program crash 1 IoCs
pid pid_target Process procid_target 2756 1792 WerFault.exe 80 -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language starticon3.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language starticon3.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1792 starticon3.exe 1792 starticon3.exe 4432 starticon3.exe 4432 starticon3.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1792 wrote to memory of 2304 1792 starticon3.exe 85 PID 1792 wrote to memory of 2304 1792 starticon3.exe 85 PID 1792 wrote to memory of 2304 1792 starticon3.exe 85 PID 1792 wrote to memory of 4432 1792 starticon3.exe 86 PID 1792 wrote to memory of 4432 1792 starticon3.exe 86 PID 1792 wrote to memory of 4432 1792 starticon3.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\starticon3.exe"C:\Users\Admin\AppData\Local\Temp\starticon3.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1792 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\7a476725-87dd-470e-896f-17a56effaee5" /deny *S-1-1-0:(OI)(CI)(DE,DC)2⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2304
-
-
C:\Users\Admin\AppData\Local\Temp\starticon3.exe"C:\Users\Admin\AppData\Local\Temp\starticon3.exe" --Admin IsNotAutoStart IsNotTask2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4432
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1792 -s 21442⤵
- Program crash
PID:2756
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1792 -ip 17921⤵PID:1512
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
1KB
MD567e486b2f148a3fca863728242b6273e
SHA1452a84c183d7ea5b7c015b597e94af8eef66d44a
SHA256facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb
SHA512d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e
-
Filesize
436B
MD5971c514f84bba0785f80aa1c23edfd79
SHA1732acea710a87530c6b08ecdf32a110d254a54c8
SHA256f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895
SHA51243dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize174B
MD5bf3fceab2c002dae29619a697cd28f30
SHA1dbf6755f5e997f9cf9c490f1df09cc5f99df54ef
SHA25655dbe515022ba8cc47b3d2ae70548e85e1cc4b2e73e71e64a716c9bb8ef16b3c
SHA51242624112b91e496c619335e9a9db3bdbba8ddc3a9078d46a86d3a11ab2a655f8eb0fad947c367b95a1fb0153f9725e72fcc8d462616af2774d6350c7f3db4281
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5a22f82b327418bd0ea2655bf100c2644
SHA12a4eb460fd63004182c3d3fdace7f9956d00c332
SHA256423220863e53f65b235a8a47157c8d614362ac12f4b4d3bc8f7d3e57dc7e25e2
SHA5122e4995acfebaffdef8f84c0c1049b4a308a21c6a604ea267a4e2cd90ba32f464489195b24abf6a0921419c2c09496a9dd94e7136ed7e03036f60cb2d45201ea4
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Filesize
725KB
MD5e8bbb6d921b79101aea7d906a1798f3d
SHA14fd59822cdedd1b194d27d2c01a9cde6222de1bb
SHA2567bc2928ce06e7db7bfe0bf3f2c2d2ff9df7f0a8041ea8c593dd0b912c1c3d3fd
SHA512c525e07c65c7be43aa90568f98253b397919cd0f597b1ba446fed51a578ca1aae4c93fa59e1345b20e3216a676ba35c89c67d6ced6bea68da44a53989fa4d656