Analysis
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max time kernel
145s -
max time network
131s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
16/03/2023, 19:51
Static task
static1
Behavioral task
behavioral1
Sample
1.bin.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
1.bin.exe
Resource
win10v2004-20230220-en
General
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Target
1.bin.exe
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Size
844KB
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MD5
98eedc4376c0716025cd9d26c62990b1
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SHA1
cd80b88b320590c38d09f85d9cbb71f19ef2d199
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SHA256
45bdc7cb0d2dd526eb9a782b0d948eb0ca86204c51b2252a0c910bb7fef0b6a5
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SHA512
6205757675c4b05c4e3effa003cafbdfd6c2451d4c509b9cb558a8360b9a1df6af77515f0c5e931259400f77263a729ffa0335b5b466724e6f73a0a75d21d982
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SSDEEP
12288:1hOWC0cUIbpUPkiCSQsET8ZMn1LSzP0Jiue6Zs9YzPO8bRIT0vDcM7wUVxBV96+M:1NCa8J93sMny8f7c4Fb71wUV7aVh
Malware Config
Extracted
djvu
http://zexeq.com/test2/get.php
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extension
.qapo
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offline_id
VrBq0iLIRHjQLgVRLsN1WK8yFkTCRDCCvPkwnHt1
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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/4704-134-0x0000000004A20000-0x0000000004B3B000-memory.dmp family_djvu behavioral2/memory/4828-136-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4828-135-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4828-137-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4828-138-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4828-148-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4380-151-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4380-152-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4380-157-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4380-158-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4380-159-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4380-163-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4380-165-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4380-166-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4380-191-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4380-278-0x0000000000400000-0x0000000000537000-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-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation 1.bin.exe Key value queried \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation 1.bin.exe Key value queried \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation build2.exe -
Executes dropped EXE 4 IoCs
pid Process 3900 build2.exe 4660 build2.exe 2492 build3.exe 2008 mstsca.exe -
Loads dropped DLL 2 IoCs
pid Process 4660 build2.exe 4660 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4840 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-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\526417d2-6251-468a-936a-9c4ab0d7e338\\1.bin.exe\" --AutoStart" 1.bin.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 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 12 api.2ip.ua 26 api.2ip.ua 11 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 4704 set thread context of 4828 4704 1.bin.exe 86 PID 4296 set thread context of 4380 4296 1.bin.exe 90 PID 3900 set thread context of 4660 3900 build2.exe 95 -
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 3760 schtasks.exe 3164 schtasks.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 2752 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4828 1.bin.exe 4828 1.bin.exe 4380 1.bin.exe 4380 1.bin.exe 4660 build2.exe 4660 build2.exe -
Suspicious use of WriteProcessMemory 53 IoCs
description pid Process procid_target PID 4704 wrote to memory of 4828 4704 1.bin.exe 86 PID 4704 wrote to memory of 4828 4704 1.bin.exe 86 PID 4704 wrote to memory of 4828 4704 1.bin.exe 86 PID 4704 wrote to memory of 4828 4704 1.bin.exe 86 PID 4704 wrote to memory of 4828 4704 1.bin.exe 86 PID 4704 wrote to memory of 4828 4704 1.bin.exe 86 PID 4704 wrote to memory of 4828 4704 1.bin.exe 86 PID 4704 wrote to memory of 4828 4704 1.bin.exe 86 PID 4704 wrote to memory of 4828 4704 1.bin.exe 86 PID 4704 wrote to memory of 4828 4704 1.bin.exe 86 PID 4828 wrote to memory of 4840 4828 1.bin.exe 87 PID 4828 wrote to memory of 4840 4828 1.bin.exe 87 PID 4828 wrote to memory of 4840 4828 1.bin.exe 87 PID 4828 wrote to memory of 4296 4828 1.bin.exe 88 PID 4828 wrote to memory of 4296 4828 1.bin.exe 88 PID 4828 wrote to memory of 4296 4828 1.bin.exe 88 PID 4296 wrote to memory of 4380 4296 1.bin.exe 90 PID 4296 wrote to memory of 4380 4296 1.bin.exe 90 PID 4296 wrote to memory of 4380 4296 1.bin.exe 90 PID 4296 wrote to memory of 4380 4296 1.bin.exe 90 PID 4296 wrote to memory of 4380 4296 1.bin.exe 90 PID 4296 wrote to memory of 4380 4296 1.bin.exe 90 PID 4296 wrote to memory of 4380 4296 1.bin.exe 90 PID 4296 wrote to memory of 4380 4296 1.bin.exe 90 PID 4296 wrote to memory of 4380 4296 1.bin.exe 90 PID 4296 wrote to memory of 4380 4296 1.bin.exe 90 PID 4380 wrote to memory of 3900 4380 1.bin.exe 94 PID 4380 wrote to memory of 3900 4380 1.bin.exe 94 PID 4380 wrote to memory of 3900 4380 1.bin.exe 94 PID 3900 wrote to memory of 4660 3900 build2.exe 95 PID 3900 wrote to memory of 4660 3900 build2.exe 95 PID 3900 wrote to memory of 4660 3900 build2.exe 95 PID 3900 wrote to memory of 4660 3900 build2.exe 95 PID 3900 wrote to memory of 4660 3900 build2.exe 95 PID 3900 wrote to memory of 4660 3900 build2.exe 95 PID 3900 wrote to memory of 4660 3900 build2.exe 95 PID 3900 wrote to memory of 4660 3900 build2.exe 95 PID 3900 wrote to memory of 4660 3900 build2.exe 95 PID 4380 wrote to memory of 2492 4380 1.bin.exe 96 PID 4380 wrote to memory of 2492 4380 1.bin.exe 96 PID 4380 wrote to memory of 2492 4380 1.bin.exe 96 PID 2492 wrote to memory of 3760 2492 build3.exe 97 PID 2492 wrote to memory of 3760 2492 build3.exe 97 PID 2492 wrote to memory of 3760 2492 build3.exe 97 PID 4660 wrote to memory of 1320 4660 build2.exe 102 PID 4660 wrote to memory of 1320 4660 build2.exe 102 PID 4660 wrote to memory of 1320 4660 build2.exe 102 PID 1320 wrote to memory of 2752 1320 cmd.exe 104 PID 1320 wrote to memory of 2752 1320 cmd.exe 104 PID 1320 wrote to memory of 2752 1320 cmd.exe 104 PID 2008 wrote to memory of 3164 2008 mstsca.exe 108 PID 2008 wrote to memory of 3164 2008 mstsca.exe 108 PID 2008 wrote to memory of 3164 2008 mstsca.exe 108
Processes
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C:\Users\Admin\AppData\Local\Temp\1.bin.exe"C:\Users\Admin\AppData\Local\Temp\1.bin.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4704 -
C:\Users\Admin\AppData\Local\Temp\1.bin.exe"C:\Users\Admin\AppData\Local\Temp\1.bin.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4828 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\526417d2-6251-468a-936a-9c4ab0d7e338" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4840
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C:\Users\Admin\AppData\Local\Temp\1.bin.exe"C:\Users\Admin\AppData\Local\Temp\1.bin.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4296 -
C:\Users\Admin\AppData\Local\Temp\1.bin.exe"C:\Users\Admin\AppData\Local\Temp\1.bin.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4380 -
C:\Users\Admin\AppData\Local\824d5e12-6562-4307-8a7f-a03a61420d4c\build2.exe"C:\Users\Admin\AppData\Local\824d5e12-6562-4307-8a7f-a03a61420d4c\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3900 -
C:\Users\Admin\AppData\Local\824d5e12-6562-4307-8a7f-a03a61420d4c\build2.exe"C:\Users\Admin\AppData\Local\824d5e12-6562-4307-8a7f-a03a61420d4c\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:4660 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\824d5e12-6562-4307-8a7f-a03a61420d4c\build2.exe" & exit7⤵
- Suspicious use of WriteProcessMemory
PID:1320 -
C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
PID:2752
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C:\Users\Admin\AppData\Local\824d5e12-6562-4307-8a7f-a03a61420d4c\build3.exe"C:\Users\Admin\AppData\Local\824d5e12-6562-4307-8a7f-a03a61420d4c\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2492 -
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:3760
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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:2008 -
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:3164
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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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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize2KB
MD5cdc105f9b440a6e48a5668a56bb20df4
SHA13876d7213409b27f4934ef8062b2bd49ce1fd8e7
SHA2566613baac61b4482d1476ef01e7f877ff4cf301375d9069d45defd5054f23b2f0
SHA51252ae1d9b4d4d9fc2822c916a9fc3f46a604090cd063200e48a28d12eea73e28bec1dc3458c7baef56fe0a696b36373c29de3138214efea0e2a648cf7da7620df
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize1KB
MD5110cf742e7da59e417e5b51e23c5a044
SHA12fe4ee009a9a99de850dd8d6d92c9d4837f444d2
SHA256ebe97ccfc0c50239665d939f865896143ffcb6921361e18dcba32b3bfa19a633
SHA512117498742030a11f129b3b3281f304ad50c53dd39d638af0ad0f6234a1207efc6622d5d886806b376e7ae773feef177afc74449adbda16a40b31588017d5c4a7
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD53b5f986ee948f5e5df8dc6e0c4b696b2
SHA11adb998a69171b89706c5f1d521ffdfa1bb374d1
SHA256062e2b3b868b45267d9c0ddb546550a36b112784dde2082ac6ab1d52cf500aac
SHA512bc2a418f9240b7e6c1fc6db1e5fbaad973849597c92a243cafa85349090a79340fde6f2895cd22d54c0d4abe1a8e0fdf121c603e4eaec93636d55123bf8b81a4
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD56354ff32791fbdd8afc564e297369320
SHA1390c65f5e120e9c592414ed7e57e604c879683a2
SHA256e1fb6132f79c8e77e3c048afc2b2905fc11cc91027f58de4ebff21fa0c136c1b
SHA5121e1e9468b6153a552cc769ff9a1a36cb9bd2dd30ef90f8b47638f11251a4c3e24164df5ae20200f8c339e0d900ef5db327fc384c1fe16418addf259d2f0a8d8a
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Filesize
844KB
MD598eedc4376c0716025cd9d26c62990b1
SHA1cd80b88b320590c38d09f85d9cbb71f19ef2d199
SHA25645bdc7cb0d2dd526eb9a782b0d948eb0ca86204c51b2252a0c910bb7fef0b6a5
SHA5126205757675c4b05c4e3effa003cafbdfd6c2451d4c509b9cb558a8360b9a1df6af77515f0c5e931259400f77263a729ffa0335b5b466724e6f73a0a75d21d982
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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
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a