Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
09/04/2024, 01:33
Static task
static1
Behavioral task
behavioral1
Sample
e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe
Resource
win10v2004-20240226-en
General
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Target
e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe
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Size
760KB
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MD5
e8e930faa09a1b2a7dd07ba412b70ad8
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SHA1
1af64e7e5c6cd6a6089196669809f0aac1d89b6b
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SHA256
d4cb0f461af9d253c3bd6a808e2a66f49bf9e20af31d789faa682b78887273f3
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SHA512
72061072c56fb650de78ea8e54e76be657ccf9dba3fdcf50619072e4774dc95faf8542cb1cd0de4ab933f14d61719a6b7a7cdf3fbe3b22ef34900529fa17d2ff
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SSDEEP
12288:ZTFsauL2TYH0M9w63cS2HyIueuc/fs/QbgsKn9Oczb2zqZBPA:ZTF5DI0M9RwHy0HsoksKnoczbuqZBPA
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 17 IoCs
resource yara_rule behavioral2/memory/1760-2-0x0000000002650000-0x000000000276B000-memory.dmp family_djvu behavioral2/memory/1496-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1496-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1496-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1496-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1496-15-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2196-20-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2196-21-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2196-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2196-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2196-28-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2196-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2196-31-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2196-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2196-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2196-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2196-37-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1636 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\2f683abf-d8f6-4ae1-a1dc-2274929f9016\\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe\" --AutoStart" e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.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 6 api.2ip.ua 7 api.2ip.ua 18 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1760 set thread context of 1496 1760 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 90 PID 4336 set thread context of 2196 4336 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 96 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1496 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 1496 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 2196 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 2196 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 1760 wrote to memory of 1496 1760 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 90 PID 1760 wrote to memory of 1496 1760 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 90 PID 1760 wrote to memory of 1496 1760 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 90 PID 1760 wrote to memory of 1496 1760 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 90 PID 1760 wrote to memory of 1496 1760 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 90 PID 1760 wrote to memory of 1496 1760 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 90 PID 1760 wrote to memory of 1496 1760 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 90 PID 1760 wrote to memory of 1496 1760 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 90 PID 1760 wrote to memory of 1496 1760 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 90 PID 1760 wrote to memory of 1496 1760 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 90 PID 1496 wrote to memory of 1636 1496 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 91 PID 1496 wrote to memory of 1636 1496 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 91 PID 1496 wrote to memory of 1636 1496 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 91 PID 1496 wrote to memory of 4336 1496 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 92 PID 1496 wrote to memory of 4336 1496 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 92 PID 1496 wrote to memory of 4336 1496 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 92 PID 4336 wrote to memory of 2196 4336 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 96 PID 4336 wrote to memory of 2196 4336 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 96 PID 4336 wrote to memory of 2196 4336 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 96 PID 4336 wrote to memory of 2196 4336 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 96 PID 4336 wrote to memory of 2196 4336 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 96 PID 4336 wrote to memory of 2196 4336 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 96 PID 4336 wrote to memory of 2196 4336 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 96 PID 4336 wrote to memory of 2196 4336 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 96 PID 4336 wrote to memory of 2196 4336 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 96 PID 4336 wrote to memory of 2196 4336 e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1760 -
C:\Users\Admin\AppData\Local\Temp\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1496 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\2f683abf-d8f6-4ae1-a1dc-2274929f9016" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:1636
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C:\Users\Admin\AppData\Local\Temp\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4336 -
C:\Users\Admin\AppData\Local\Temp\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2196
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize1KB
MD5580071ebd24cccfd9268e1474bb8134e
SHA1443665efe7009fe1d4c5bc4786dc9cc540e59ef6
SHA25653e3fd53196b53d23b724612cf2704518edf3e979dca02f5674ac419b5f7b461
SHA51213d52455d8a30a0af06c420cd01f13f55efc4c55b59883c5208bf4929352e7b783557bff6a157c4fc71a8e7cbfadf00d55eef8ebef4b984624d8feb116a960a4
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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
MD5aa1b1bf5f32d7497f003b6e2d968ef7e
SHA1051c64148348aaa8861b6f1ce57dd03ae353f50b
SHA256ebde56dbfd8bc2d8274b6f8770771fbd783e65507bb313eabbd6aca0079fd3dc
SHA512a719c376e224742b619d15143eee90904f6a56efb078cf352771a260bdcd713b3a11cf7beab797739655dc5489603a712df6ba879b5ad7a9863aaafe98341f93
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD5fd0d9758b35237aaa6dad0c2145bf952
SHA146851ef8a1dc00af1e1863207b8e6c3a9971e5c7
SHA25636b2e5f69af1590677d6de5c0dd262431254ecd0e3cd3b7c76167cd407294f80
SHA5127f73138ebfb43745fb7114ddc2c37de80e6bc3be8caf1ccb87257a445c62d67cf473639524b8dcb8b4c25e4a825a651c09fe37266a560210531867423207fcad
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C:\Users\Admin\AppData\Local\2f683abf-d8f6-4ae1-a1dc-2274929f9016\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe
Filesize760KB
MD5e8e930faa09a1b2a7dd07ba412b70ad8
SHA11af64e7e5c6cd6a6089196669809f0aac1d89b6b
SHA256d4cb0f461af9d253c3bd6a808e2a66f49bf9e20af31d789faa682b78887273f3
SHA51272061072c56fb650de78ea8e54e76be657ccf9dba3fdcf50619072e4774dc95faf8542cb1cd0de4ab933f14d61719a6b7a7cdf3fbe3b22ef34900529fa17d2ff