Analysis
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max time kernel
147s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
15/05/2023, 12:36
Static task
static1
Behavioral task
behavioral1
Sample
0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe
Resource
win10v2004-20230220-en
General
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Target
0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe
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Size
772KB
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MD5
23b2b6a29cba5939630648642b891a28
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SHA1
b2799905c99fab232a7d86695e14591e41966e45
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SHA256
0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51
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SHA512
be29cf3f830c5f97019336ddb7e0eace811f709f7cdd57c5aec10fbb98afdbe042e2799910613ad95814feb60a13ec54770fef6bc91db97facddb7ad6bcb0cc0
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SSDEEP
12288:YA6Whr1sa4XVDQm9EQ6RMO7UfGQOrQQV7Rv38lj5qohTLxDtrdUZY:YAjrea4X8QHGBPVlUVEohT91dUZY
Malware Config
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.xash
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offline_id
uK3VnHYy6oibGbO8t2PDOMcT40gQoh5oUUCe2Lt1
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payload_url
http://colisumy.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 16 IoCs
resource yara_rule behavioral1/memory/2196-135-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2196-136-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2076-137-0x0000000002420000-0x000000000253B000-memory.dmp family_djvu behavioral1/memory/2196-138-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2196-139-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2196-148-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3160-152-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3160-153-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3160-158-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3160-160-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3160-161-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3160-166-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3160-168-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3160-169-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3160-179-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3160-183-0x0000000000400000-0x0000000000537000-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 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe Key value queried \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe -
Executes dropped EXE 2 IoCs
pid Process 3144 build3.exe 2148 mstsca.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 3768 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a489c808-8c11-491e-9694-4bae8c47f9a0\\0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe\" --AutoStart" 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.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 24 api.2ip.ua 13 api.2ip.ua 14 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2076 set thread context of 2196 2076 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 83 PID 2464 set thread context of 3160 2464 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 90 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3220 schtasks.exe 4220 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2196 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 2196 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 3160 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 3160 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe -
Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 2076 wrote to memory of 2196 2076 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 83 PID 2076 wrote to memory of 2196 2076 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 83 PID 2076 wrote to memory of 2196 2076 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 83 PID 2076 wrote to memory of 2196 2076 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 83 PID 2076 wrote to memory of 2196 2076 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 83 PID 2076 wrote to memory of 2196 2076 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 83 PID 2076 wrote to memory of 2196 2076 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 83 PID 2076 wrote to memory of 2196 2076 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 83 PID 2076 wrote to memory of 2196 2076 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 83 PID 2076 wrote to memory of 2196 2076 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 83 PID 2196 wrote to memory of 3768 2196 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 86 PID 2196 wrote to memory of 3768 2196 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 86 PID 2196 wrote to memory of 3768 2196 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 86 PID 2196 wrote to memory of 2464 2196 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 88 PID 2196 wrote to memory of 2464 2196 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 88 PID 2196 wrote to memory of 2464 2196 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 88 PID 2464 wrote to memory of 3160 2464 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 90 PID 2464 wrote to memory of 3160 2464 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 90 PID 2464 wrote to memory of 3160 2464 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 90 PID 2464 wrote to memory of 3160 2464 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 90 PID 2464 wrote to memory of 3160 2464 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 90 PID 2464 wrote to memory of 3160 2464 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 90 PID 2464 wrote to memory of 3160 2464 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 90 PID 2464 wrote to memory of 3160 2464 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 90 PID 2464 wrote to memory of 3160 2464 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 90 PID 2464 wrote to memory of 3160 2464 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 90 PID 3160 wrote to memory of 3144 3160 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 95 PID 3160 wrote to memory of 3144 3160 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 95 PID 3160 wrote to memory of 3144 3160 0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe 95 PID 3144 wrote to memory of 3220 3144 build3.exe 96 PID 3144 wrote to memory of 3220 3144 build3.exe 96 PID 3144 wrote to memory of 3220 3144 build3.exe 96 PID 2148 wrote to memory of 4220 2148 mstsca.exe 99 PID 2148 wrote to memory of 4220 2148 mstsca.exe 99 PID 2148 wrote to memory of 4220 2148 mstsca.exe 99
Processes
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C:\Users\Admin\AppData\Local\Temp\0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe"C:\Users\Admin\AppData\Local\Temp\0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2076 -
C:\Users\Admin\AppData\Local\Temp\0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe"C:\Users\Admin\AppData\Local\Temp\0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2196 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\a489c808-8c11-491e-9694-4bae8c47f9a0" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:3768
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C:\Users\Admin\AppData\Local\Temp\0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe"C:\Users\Admin\AppData\Local\Temp\0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2464 -
C:\Users\Admin\AppData\Local\Temp\0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe"C:\Users\Admin\AppData\Local\Temp\0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3160 -
C:\Users\Admin\AppData\Local\8e53a592-47b3-4ecd-adad-00e72b76a35a\build3.exe"C:\Users\Admin\AppData\Local\8e53a592-47b3-4ecd-adad-00e72b76a35a\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3144 -
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:3220
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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:2148 -
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:4220
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize2KB
MD591425cdf7f700e70ded152906a8897d4
SHA191934f4da3b05318a7f9c13772c3148502095f90
SHA2563d84c7f6ae4a5c248c01b6c0821b9df6931d93453d2cdd98b6acb14715d2662b
SHA512f76c4f299d06decf930463e3d642edf25e099ab1a6cc4f24e5b91bc37d4aacf373733d98d87407b23e28569719721c1e0bed90d99338514e4be1788b329ef348
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize1KB
MD5a9a657bb9fbf982c38587ee2b9590a7d
SHA1ba348aa472b2d143c829cd5a764605b8e22a353c
SHA256d08e18ff8411d67ed596edcbf1aa36365d0cab8f4de48c7abfdb4062c4ab2b9c
SHA5121dcfba62c5977a3dcdf70f3fb46f6e16ab2542b68d6ebbbc4bce76c0edc4982af8ad9e4afe1d71fd3f222e01da404254e6cfdb02605ba73e21987f09522d33e1
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD5b020eed8c01084c318855a1f3ca750bc
SHA10f32462f3dbb02035e68ab5a5828f7f934efddb3
SHA256578d23d498aed27e8cdf0682f0f22095c542e68bb8f4b2f8098ecaa5ebffe928
SHA51284a32072a658da6f0d4eed3d786e0fea8210ff40a2299830a12196dff53adc59c56b468fb21e9ba0cc20f0d816184461df6398fa725b2fedc54ecdcf40c5d86d
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD56f5bb8c4a5dcd20dd8589c91b40d8288
SHA1ea4bef28b08a30cbab339cb30840930937c86d6e
SHA2568081365bfbedf68ecd9749d7a8fff946706025423d118285f0f185ae6521131c
SHA512d608cce296bd9c693903a1cbe3182e130d3cf7d6c0b5b7d15ec85a0c63d6345e3c47334c0b7d5c0c6eb639e93b9cc4d89cf2cf96dc2642674ef62985b373d304
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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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C:\Users\Admin\AppData\Local\a489c808-8c11-491e-9694-4bae8c47f9a0\0a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51.exe
Filesize772KB
MD523b2b6a29cba5939630648642b891a28
SHA1b2799905c99fab232a7d86695e14591e41966e45
SHA2560a0add1af79f26efea50912be3f14ee915ebfbe26da5fba1a3078cb1cf625f51
SHA512be29cf3f830c5f97019336ddb7e0eace811f709f7cdd57c5aec10fbb98afdbe042e2799910613ad95814feb60a13ec54770fef6bc91db97facddb7ad6bcb0cc0
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a