Analysis
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max time kernel
93s -
max time network
131s -
platform
windows10-2004_x64 -
resource
win10v2004-20250129-en -
resource tags
arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system -
submitted
30-01-2025 07:40
Static task
static1
Behavioral task
behavioral1
Sample
2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnit.exe
Resource
win7-20241010-en
General
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Target
2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnit.exe
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Size
231KB
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MD5
16999a3560ab728a8c610319df9287a3
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SHA1
b3c8b0e7249c43222af09e571ef276d5c4525098
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SHA256
9143aa44226b6c1f03e6a829c181ea5177286d047687782ad2b420f7d893f436
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SHA512
41d181af34b7837958de32857dea62696501d15eda6cffb0a20006974d7080456480b7769743af94a015840fe3c8853e09a188a5d0282e7cd360ff366d10c43a
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SSDEEP
3072:wbjoN8s5ue4OiizxDMjfSZ+yNn/43cTpWxZZB3Jzb6d5/GmYffW1CnmrlkQJ9q:wbEN4idDMjfSZlNn/IcpGnzG/GmmlnW8
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 2 IoCs
pid Process 4736 2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnitmgr.exe 1160 WaterMark.exe -
resource yara_rule behavioral2/memory/4736-7-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4736-13-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/1160-16-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/1160-14-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/1160-24-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/1160-26-0x0000000000400000-0x0000000000421000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\px76E5.tmp 2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnitmgr.exe File created C:\Program Files (x86)\Microsoft\WaterMark.exe 2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnitmgr.exe File opened for modification C:\Program Files (x86)\Microsoft\WaterMark.exe 2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnitmgr.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2788 3648 WerFault.exe 87 -
System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnit.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnitmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WaterMark.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\"" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31159018" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2097245481" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31159018" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{A871BCAA-DEDD-11EF-B9C0-E61555A27A45} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2093495792" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31159018" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31159018" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2093495792" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{A86CF87F-DEDD-11EF-B9C0-E61555A27A45} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444987881" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2097245481" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 1160 WaterMark.exe 1160 WaterMark.exe 1160 WaterMark.exe 1160 WaterMark.exe 1160 WaterMark.exe 1160 WaterMark.exe 1160 WaterMark.exe 1160 WaterMark.exe 1160 WaterMark.exe 1160 WaterMark.exe 1160 WaterMark.exe 1160 WaterMark.exe 1160 WaterMark.exe 1160 WaterMark.exe 1160 WaterMark.exe 1160 WaterMark.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1160 WaterMark.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4556 iexplore.exe 3324 iexplore.exe -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 3324 iexplore.exe 3324 iexplore.exe 4556 iexplore.exe 4556 iexplore.exe 3500 IEXPLORE.EXE 3500 IEXPLORE.EXE 1420 IEXPLORE.EXE 1420 IEXPLORE.EXE 3500 IEXPLORE.EXE 3500 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 25 IoCs
description pid Process procid_target PID 4920 wrote to memory of 4736 4920 2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnit.exe 84 PID 4920 wrote to memory of 4736 4920 2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnit.exe 84 PID 4920 wrote to memory of 4736 4920 2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnit.exe 84 PID 4736 wrote to memory of 1160 4736 2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnitmgr.exe 86 PID 4736 wrote to memory of 1160 4736 2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnitmgr.exe 86 PID 4736 wrote to memory of 1160 4736 2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnitmgr.exe 86 PID 1160 wrote to memory of 3648 1160 WaterMark.exe 87 PID 1160 wrote to memory of 3648 1160 WaterMark.exe 87 PID 1160 wrote to memory of 3648 1160 WaterMark.exe 87 PID 1160 wrote to memory of 3648 1160 WaterMark.exe 87 PID 1160 wrote to memory of 3648 1160 WaterMark.exe 87 PID 1160 wrote to memory of 3648 1160 WaterMark.exe 87 PID 1160 wrote to memory of 3648 1160 WaterMark.exe 87 PID 1160 wrote to memory of 3648 1160 WaterMark.exe 87 PID 1160 wrote to memory of 3648 1160 WaterMark.exe 87 PID 1160 wrote to memory of 3324 1160 WaterMark.exe 91 PID 1160 wrote to memory of 3324 1160 WaterMark.exe 91 PID 1160 wrote to memory of 4556 1160 WaterMark.exe 92 PID 1160 wrote to memory of 4556 1160 WaterMark.exe 92 PID 4556 wrote to memory of 3500 4556 iexplore.exe 94 PID 4556 wrote to memory of 3500 4556 iexplore.exe 94 PID 4556 wrote to memory of 3500 4556 iexplore.exe 94 PID 3324 wrote to memory of 1420 3324 iexplore.exe 93 PID 3324 wrote to memory of 1420 3324 iexplore.exe 93 PID 3324 wrote to memory of 1420 3324 iexplore.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnit.exe"C:\Users\Admin\AppData\Local\Temp\2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnit.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4920 -
C:\Users\Admin\AppData\Local\Temp\2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnitmgr.exeC:\Users\Admin\AppData\Local\Temp\2025-01-30_16999a3560ab728a8c610319df9287a3_mafia_ramnitmgr.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4736 -
C:\Program Files (x86)\Microsoft\WaterMark.exe"C:\Program Files (x86)\Microsoft\WaterMark.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1160 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe4⤵PID:3648
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 2085⤵
- Program crash
PID:2788
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"4⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3324 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3324 CREDAT:17410 /prefetch:25⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1420
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"4⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4556 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4556 CREDAT:17410 /prefetch:25⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:3500
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3648 -ip 36481⤵PID:3584
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{A86CF87F-DEDD-11EF-B9C0-E61555A27A45}.dat
Filesize3KB
MD534e281385913dffb10bf8836de989f43
SHA1eefc5f11f27bd14469da9f192b2f338e041cee16
SHA256314d5f9ff347c459b9524358edcafa2dae583e0ac23452a3fa21c39e615ea74d
SHA512d1732ec4c299f83ac9a9de18002a94204ebd985317f8334036a4ea5c1907784bafe1613a0f20d199347a0e32257af3b615dd754bebbfd7bdb74f3636b53684bd
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{A871BCAA-DEDD-11EF-B9C0-E61555A27A45}.dat
Filesize5KB
MD50076d2ccc435e9bc680da24f3daf31df
SHA1b4cf5bc7bb15aa9fcfbabc99806662d6817a98b7
SHA2560dc32f0cb8f3692c59a53b0fe7d1102bb50be8867b7c5303ecb7c518685a67c6
SHA51251e6dfffb6db76fa4c8e96c072a661848da0d7acf1433210fb054518adfba3e3bef6f657d0a2d7060e89faadaf6bd2b41880313521d1f01114e6db9e53730158
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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Filesize
65KB
MD5849ef19ec0155d79d4fa5bfb5657b106
SHA1eb7e7ff208ecb40d35755d8f36e31e2482166299
SHA2568b853e963eab5aa857b640be1d07d605a8bf6dd8bdf8884505b05034bbd87e04
SHA51230384d9943f7eca4efbdcac52d3dd9c14446a2d75dc04ce4047feabe037c5177138f6bdcb055939dcc47608dfb50a54c9676f795d850c9a9de353f90252053a2