Analysis
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max time kernel
149s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
28/01/2024, 21:30
Static task
static1
Behavioral task
behavioral1
Sample
7e0daefa772c4e91427b7e227464a94a.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
7e0daefa772c4e91427b7e227464a94a.exe
Resource
win10v2004-20231215-en
General
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Target
7e0daefa772c4e91427b7e227464a94a.exe
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Size
846KB
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MD5
7e0daefa772c4e91427b7e227464a94a
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SHA1
47b45eae10de91705fb957be36415a0a3575ae3d
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SHA256
0905ce384f22775cbf39039e92c7c35ade14ce150be8eb76ad6d5be3a09fb908
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SHA512
cd60fc07593d242fe9b2e6ae74c340d36c905b8692f11df78ba15b92b52eaf0e4912777e179ed1d2a840c00fbc060ea86c8e82c506c00dd64efff84b5f0a9650
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SSDEEP
24576:0OeSD0Ks9nL9wm1saIFLe4kjDtbuaPWAEDq/:0hL9w/e4sDYa+PDq
Malware Config
Extracted
djvu
http://astdg.top/nddddhsspen6/get.php
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extension
.moqs
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offline_id
CatwRkqdYh2Jomn6DqwFoGgcSbDsle1xlE1NPtt1
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payload_url
http://securebiz.org/dl/build2.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 15 IoCs
resource yara_rule behavioral1/memory/3032-5-0x0000000001DD0000-0x0000000001EEB000-memory.dmp family_djvu behavioral1/memory/3052-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3052-7-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3052-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3052-26-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-48-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-49-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-50-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-54-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-56-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-57-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-58-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-59-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Modifies file permissions 1 TTPs 1 IoCs
pid Process 3004 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\1fe3819f-2d26-46b1-952e-3045545ab74a\\7e0daefa772c4e91427b7e227464a94a.exe\" --AutoStart" 7e0daefa772c4e91427b7e227464a94a.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 3 api.2ip.ua 4 api.2ip.ua 9 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3032 set thread context of 3052 3032 7e0daefa772c4e91427b7e227464a94a.exe 28 PID 2732 set thread context of 2600 2732 7e0daefa772c4e91427b7e227464a94a.exe 31 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3052 7e0daefa772c4e91427b7e227464a94a.exe 2600 7e0daefa772c4e91427b7e227464a94a.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 3032 wrote to memory of 3052 3032 7e0daefa772c4e91427b7e227464a94a.exe 28 PID 3032 wrote to memory of 3052 3032 7e0daefa772c4e91427b7e227464a94a.exe 28 PID 3032 wrote to memory of 3052 3032 7e0daefa772c4e91427b7e227464a94a.exe 28 PID 3032 wrote to memory of 3052 3032 7e0daefa772c4e91427b7e227464a94a.exe 28 PID 3032 wrote to memory of 3052 3032 7e0daefa772c4e91427b7e227464a94a.exe 28 PID 3032 wrote to memory of 3052 3032 7e0daefa772c4e91427b7e227464a94a.exe 28 PID 3032 wrote to memory of 3052 3032 7e0daefa772c4e91427b7e227464a94a.exe 28 PID 3032 wrote to memory of 3052 3032 7e0daefa772c4e91427b7e227464a94a.exe 28 PID 3032 wrote to memory of 3052 3032 7e0daefa772c4e91427b7e227464a94a.exe 28 PID 3032 wrote to memory of 3052 3032 7e0daefa772c4e91427b7e227464a94a.exe 28 PID 3032 wrote to memory of 3052 3032 7e0daefa772c4e91427b7e227464a94a.exe 28 PID 3052 wrote to memory of 3004 3052 7e0daefa772c4e91427b7e227464a94a.exe 29 PID 3052 wrote to memory of 3004 3052 7e0daefa772c4e91427b7e227464a94a.exe 29 PID 3052 wrote to memory of 3004 3052 7e0daefa772c4e91427b7e227464a94a.exe 29 PID 3052 wrote to memory of 3004 3052 7e0daefa772c4e91427b7e227464a94a.exe 29 PID 3052 wrote to memory of 2732 3052 7e0daefa772c4e91427b7e227464a94a.exe 30 PID 3052 wrote to memory of 2732 3052 7e0daefa772c4e91427b7e227464a94a.exe 30 PID 3052 wrote to memory of 2732 3052 7e0daefa772c4e91427b7e227464a94a.exe 30 PID 3052 wrote to memory of 2732 3052 7e0daefa772c4e91427b7e227464a94a.exe 30 PID 2732 wrote to memory of 2600 2732 7e0daefa772c4e91427b7e227464a94a.exe 31 PID 2732 wrote to memory of 2600 2732 7e0daefa772c4e91427b7e227464a94a.exe 31 PID 2732 wrote to memory of 2600 2732 7e0daefa772c4e91427b7e227464a94a.exe 31 PID 2732 wrote to memory of 2600 2732 7e0daefa772c4e91427b7e227464a94a.exe 31 PID 2732 wrote to memory of 2600 2732 7e0daefa772c4e91427b7e227464a94a.exe 31 PID 2732 wrote to memory of 2600 2732 7e0daefa772c4e91427b7e227464a94a.exe 31 PID 2732 wrote to memory of 2600 2732 7e0daefa772c4e91427b7e227464a94a.exe 31 PID 2732 wrote to memory of 2600 2732 7e0daefa772c4e91427b7e227464a94a.exe 31 PID 2732 wrote to memory of 2600 2732 7e0daefa772c4e91427b7e227464a94a.exe 31 PID 2732 wrote to memory of 2600 2732 7e0daefa772c4e91427b7e227464a94a.exe 31 PID 2732 wrote to memory of 2600 2732 7e0daefa772c4e91427b7e227464a94a.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\7e0daefa772c4e91427b7e227464a94a.exe"C:\Users\Admin\AppData\Local\Temp\7e0daefa772c4e91427b7e227464a94a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3032 -
C:\Users\Admin\AppData\Local\Temp\7e0daefa772c4e91427b7e227464a94a.exe"C:\Users\Admin\AppData\Local\Temp\7e0daefa772c4e91427b7e227464a94a.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3052 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\1fe3819f-2d26-46b1-952e-3045545ab74a" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:3004
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C:\Users\Admin\AppData\Local\Temp\7e0daefa772c4e91427b7e227464a94a.exe"C:\Users\Admin\AppData\Local\Temp\7e0daefa772c4e91427b7e227464a94a.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2732 -
C:\Users\Admin\AppData\Local\Temp\7e0daefa772c4e91427b7e227464a94a.exe"C:\Users\Admin\AppData\Local\Temp\7e0daefa772c4e91427b7e227464a94a.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2600
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize1KB
MD57e620bb51c6346619ece5d41f4ac9ccf
SHA155f8435cc4f740be20cc8f3e1f3709b3e37bff89
SHA256972331bf876251e477d6232910b63cc2901ea9a039f03161b07bd4851d1452ab
SHA5124b9a134d298f454348c3bdd274fa872df5d9e8fd107dce8792430837ab934c611eef26a2e0ec8bbc88bfc94a5b0c0e6add257ff1abcecf8fe6b3dddd1bb14874
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize724B
MD58202a1cd02e7d69597995cabbe881a12
SHA18858d9d934b7aa9330ee73de6c476acf19929ff6
SHA25658f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5
SHA51297ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize410B
MD57762afe53f20e206883c8d6ac743c3ad
SHA11e805aeb46f0dd74b61f3138d23494b0cf4d1dd6
SHA25605b74a5eb62ece4fd2e020d3aaabe22f687b3e5a058475ac0e15a44280654c12
SHA512b861caaa232aad0844db5f996233f2edd498dce1d3e95357fbd9343d9fa6d8cf1464ff08bff87421df1e8c2c93051b8837d473734926cefd26234871ac94b67a
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize344B
MD5ae39933ee01903e13fbd0614076acbe0
SHA1ad8c8bb44c4602437e762f360f2a78fab7a98182
SHA256ffb12f2b30dc3435e48b299bd0d93943542580509aea5933ee0bce631f680925
SHA512e5998b297820346723fc1340eccd30de0c9f2258935f6957e2863f936ebc49a0fb84c8e88f05308b65635ebaeb42614535f575bfd8f4399ebf16d2bf75d02172
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD5a1f4c5cccee37e883c90289c613564f0
SHA19ba586f3a9e1faf7b601b40dcd65382fb1bdaf03
SHA256e4b8dbe4f87a58da1afe996040974d56d1a4c9e9065452203ae1c01c57a30e06
SHA512bc4c9d5eb3a48c0fe96a36aabe7a1cfb1de102b720b13cee7af62857621f8e8ce83a74f01dd8723748f068444d22966eca115193962b9393211b82d4b0aa011b
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C:\Users\Admin\AppData\Local\1fe3819f-2d26-46b1-952e-3045545ab74a\7e0daefa772c4e91427b7e227464a94a.exe
Filesize846KB
MD57e0daefa772c4e91427b7e227464a94a
SHA147b45eae10de91705fb957be36415a0a3575ae3d
SHA2560905ce384f22775cbf39039e92c7c35ade14ce150be8eb76ad6d5be3a09fb908
SHA512cd60fc07593d242fe9b2e6ae74c340d36c905b8692f11df78ba15b92b52eaf0e4912777e179ed1d2a840c00fbc060ea86c8e82c506c00dd64efff84b5f0a9650
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Filesize
65KB
MD5ac05d27423a85adc1622c714f2cb6184
SHA1b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA5126d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d