Analysis
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max time kernel
145s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
18-03-2023 14:58
Static task
static1
Behavioral task
behavioral1
Sample
setup.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
setup.exe
Resource
win10v2004-20230220-en
General
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Target
setup.exe
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Size
800KB
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MD5
75821b1787edb038804323a083112fdf
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SHA1
ae25f24c3ddfc7ef5cc245d35db8585b5f60c0a3
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SHA256
514540044fd6e9436759d536a6f2a6aea3950994132328e7f055b93f71bfd994
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SHA512
9a07db42a111326ad6631d27315e1db7129f9e3c8ce162e9263fb86da278d3bd5b036b0b61b87bf0f8a806727c81bb5bcdd036e30069c6f9c4c1c444dc08df5d
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SSDEEP
12288:VlYiIHMt/K5gSVsIzZWsXzSfg3xlElNccIwx0OUSblfgqW93b4i8hjUSxVL:sDpaSuIzZZ2fvOBulYqAbQa0
Malware Config
Extracted
djvu
http://zexeq.com/test2/get.php
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extension
.dapo
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offline_id
8EM6M9LqEzIk18qaQ87WiPQ1u84RRdej5V1ovht1
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payload_url
http://uaery.top/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
3
d6ef050131e7d5a1d595c51613328971
https://t.me/zaskullz
https://steamcommunity.com/profiles/76561199486572327
http://135.181.87.234:80
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profile_id_v2
d6ef050131e7d5a1d595c51613328971
Signatures
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Detected Djvu ransomware 16 IoCs
resource yara_rule behavioral2/memory/1180-134-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4272-135-0x0000000004700000-0x000000000481B000-memory.dmp family_djvu behavioral2/memory/1180-136-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1180-137-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1180-138-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1180-143-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1824-147-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1824-148-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1824-149-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1824-156-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1824-157-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1824-161-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1824-163-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1824-164-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1824-189-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1824-276-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Downloads MZ/PE file
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Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation setup.exe Key value queried \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation setup.exe Key value queried \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation build2.exe -
Executes dropped EXE 4 IoCs
pid Process 4948 build2.exe 4740 build2.exe 3752 build3.exe 3448 mstsca.exe -
Loads dropped DLL 2 IoCs
pid Process 4740 build2.exe 4740 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1576 icacls.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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\ec0d441a-1620-4c80-acd3-ae3df2aca831\\setup.exe\" --AutoStart" setup.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 14 api.2ip.ua 34 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 4272 set thread context of 1180 4272 setup.exe 86 PID 4796 set thread context of 1824 4796 setup.exe 90 PID 4948 set thread context of 4740 4948 build2.exe 93 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 build2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString build2.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3116 schtasks.exe 4824 schtasks.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 4408 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1180 setup.exe 1180 setup.exe 1824 setup.exe 1824 setup.exe 4740 build2.exe 4740 build2.exe -
Suspicious use of WriteProcessMemory 53 IoCs
description pid Process procid_target PID 4272 wrote to memory of 1180 4272 setup.exe 86 PID 4272 wrote to memory of 1180 4272 setup.exe 86 PID 4272 wrote to memory of 1180 4272 setup.exe 86 PID 4272 wrote to memory of 1180 4272 setup.exe 86 PID 4272 wrote to memory of 1180 4272 setup.exe 86 PID 4272 wrote to memory of 1180 4272 setup.exe 86 PID 4272 wrote to memory of 1180 4272 setup.exe 86 PID 4272 wrote to memory of 1180 4272 setup.exe 86 PID 4272 wrote to memory of 1180 4272 setup.exe 86 PID 4272 wrote to memory of 1180 4272 setup.exe 86 PID 1180 wrote to memory of 1576 1180 setup.exe 87 PID 1180 wrote to memory of 1576 1180 setup.exe 87 PID 1180 wrote to memory of 1576 1180 setup.exe 87 PID 1180 wrote to memory of 4796 1180 setup.exe 88 PID 1180 wrote to memory of 4796 1180 setup.exe 88 PID 1180 wrote to memory of 4796 1180 setup.exe 88 PID 4796 wrote to memory of 1824 4796 setup.exe 90 PID 4796 wrote to memory of 1824 4796 setup.exe 90 PID 4796 wrote to memory of 1824 4796 setup.exe 90 PID 4796 wrote to memory of 1824 4796 setup.exe 90 PID 4796 wrote to memory of 1824 4796 setup.exe 90 PID 4796 wrote to memory of 1824 4796 setup.exe 90 PID 4796 wrote to memory of 1824 4796 setup.exe 90 PID 4796 wrote to memory of 1824 4796 setup.exe 90 PID 4796 wrote to memory of 1824 4796 setup.exe 90 PID 4796 wrote to memory of 1824 4796 setup.exe 90 PID 1824 wrote to memory of 4948 1824 setup.exe 92 PID 1824 wrote to memory of 4948 1824 setup.exe 92 PID 1824 wrote to memory of 4948 1824 setup.exe 92 PID 4948 wrote to memory of 4740 4948 build2.exe 93 PID 4948 wrote to memory of 4740 4948 build2.exe 93 PID 4948 wrote to memory of 4740 4948 build2.exe 93 PID 4948 wrote to memory of 4740 4948 build2.exe 93 PID 4948 wrote to memory of 4740 4948 build2.exe 93 PID 4948 wrote to memory of 4740 4948 build2.exe 93 PID 4948 wrote to memory of 4740 4948 build2.exe 93 PID 4948 wrote to memory of 4740 4948 build2.exe 93 PID 4948 wrote to memory of 4740 4948 build2.exe 93 PID 1824 wrote to memory of 3752 1824 setup.exe 94 PID 1824 wrote to memory of 3752 1824 setup.exe 94 PID 1824 wrote to memory of 3752 1824 setup.exe 94 PID 3752 wrote to memory of 3116 3752 build3.exe 95 PID 3752 wrote to memory of 3116 3752 build3.exe 95 PID 3752 wrote to memory of 3116 3752 build3.exe 95 PID 4740 wrote to memory of 1188 4740 build2.exe 101 PID 4740 wrote to memory of 1188 4740 build2.exe 101 PID 4740 wrote to memory of 1188 4740 build2.exe 101 PID 1188 wrote to memory of 4408 1188 cmd.exe 103 PID 1188 wrote to memory of 4408 1188 cmd.exe 103 PID 1188 wrote to memory of 4408 1188 cmd.exe 103 PID 3448 wrote to memory of 4824 3448 mstsca.exe 115 PID 3448 wrote to memory of 4824 3448 mstsca.exe 115 PID 3448 wrote to memory of 4824 3448 mstsca.exe 115
Processes
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C:\Users\Admin\AppData\Local\Temp\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4272 -
C:\Users\Admin\AppData\Local\Temp\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1180 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\ec0d441a-1620-4c80-acd3-ae3df2aca831" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:1576
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C:\Users\Admin\AppData\Local\Temp\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4796 -
C:\Users\Admin\AppData\Local\Temp\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1824 -
C:\Users\Admin\AppData\Local\35e5c985-8a3b-4712-ab9c-f65a3481a2f2\build2.exe"C:\Users\Admin\AppData\Local\35e5c985-8a3b-4712-ab9c-f65a3481a2f2\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4948 -
C:\Users\Admin\AppData\Local\35e5c985-8a3b-4712-ab9c-f65a3481a2f2\build2.exe"C:\Users\Admin\AppData\Local\35e5c985-8a3b-4712-ab9c-f65a3481a2f2\build2.exe"6⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4740 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\35e5c985-8a3b-4712-ab9c-f65a3481a2f2\build2.exe" & exit7⤵
- Suspicious use of WriteProcessMemory
PID:1188 -
C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
PID:4408
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C:\Users\Admin\AppData\Local\35e5c985-8a3b-4712-ab9c-f65a3481a2f2\build3.exe"C:\Users\Admin\AppData\Local\35e5c985-8a3b-4712-ab9c-f65a3481a2f2\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3752 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"6⤵
- Creates scheduled task(s)
PID:3116
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3448 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"2⤵
- Creates scheduled task(s)
PID:4824
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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Filesize
462KB
MD51ea00519a643ae1ab0f4f9a6ecc81ead
SHA1551c4fd300092a51a7fd3ceee009db249fd2a70f
SHA25604e8128c405994d18f26b6394b32686c6e07a65b2c90c98f16295a48a16ba683
SHA512187897c856c6b7b45d9f85898103b8560d25c694c150c1c1efd1370be0c4e3ba3799d2f4c3cc5c2618b0a84f80cff19cf9be47d0961df20c47b73783f6d0491d
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Filesize
462KB
MD51ea00519a643ae1ab0f4f9a6ecc81ead
SHA1551c4fd300092a51a7fd3ceee009db249fd2a70f
SHA25604e8128c405994d18f26b6394b32686c6e07a65b2c90c98f16295a48a16ba683
SHA512187897c856c6b7b45d9f85898103b8560d25c694c150c1c1efd1370be0c4e3ba3799d2f4c3cc5c2618b0a84f80cff19cf9be47d0961df20c47b73783f6d0491d
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Filesize
462KB
MD51ea00519a643ae1ab0f4f9a6ecc81ead
SHA1551c4fd300092a51a7fd3ceee009db249fd2a70f
SHA25604e8128c405994d18f26b6394b32686c6e07a65b2c90c98f16295a48a16ba683
SHA512187897c856c6b7b45d9f85898103b8560d25c694c150c1c1efd1370be0c4e3ba3799d2f4c3cc5c2618b0a84f80cff19cf9be47d0961df20c47b73783f6d0491d
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Filesize
462KB
MD51ea00519a643ae1ab0f4f9a6ecc81ead
SHA1551c4fd300092a51a7fd3ceee009db249fd2a70f
SHA25604e8128c405994d18f26b6394b32686c6e07a65b2c90c98f16295a48a16ba683
SHA512187897c856c6b7b45d9f85898103b8560d25c694c150c1c1efd1370be0c4e3ba3799d2f4c3cc5c2618b0a84f80cff19cf9be47d0961df20c47b73783f6d0491d
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
800KB
MD575821b1787edb038804323a083112fdf
SHA1ae25f24c3ddfc7ef5cc245d35db8585b5f60c0a3
SHA256514540044fd6e9436759d536a6f2a6aea3950994132328e7f055b93f71bfd994
SHA5129a07db42a111326ad6631d27315e1db7129f9e3c8ce162e9263fb86da278d3bd5b036b0b61b87bf0f8a806727c81bb5bcdd036e30069c6f9c4c1c444dc08df5d
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a