Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
16/10/2026, 01:02
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
jaffacakes118_Trojan.Win32.Agent.gen.exe
Resource
win10v2004-20260911-en
22 signatures
150 seconds
General
- Target jaffacakes118_Trojan.Win32.Agent.gen.exe
- Size 4.4MB
- Sample261016-bdybysfs5x
- SHA256 363d482ef09dd8f21bd54ca5688a39f67bac89c8faa68393aaf445d1057972b9
- MD5 20fa01c297873da906241c269c97ced8
- SHA1 1abb123a42e8637a7c6a6ca098a145e133ba5ceb
- SHA512 4c83c4a6ca3a8a6c1872cb15410ff6a43db6aec33dc0c07c41c134be9c619bddd634e296ab41f07cb66e71dcd840011328d655ac07255b4e57f65dcc62df301f
- SSDEEP 98304:6NCuN6Rrf60rylzwVGC96QEWdIFJq8wnaPkNQyW/nSMCtsea5:6oCKp6zCp96QjdIXMaPkNQ7qMCtla5
- TLSH T14C2623C2AC4451B0E8214D3154312EB142377EF6FCACAA4D7F89B5AB75735C26236E2B
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- ACProtect 1.3x - 1.4x DLL software 2 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x000900000001d8a5-62.dat acprotect behavioral1/files/0x001600000001b686-61.dat acprotect -
resource yara_rule behavioral1/files/0x000f00000001b620-30.dat aspack_v212_v242 behavioral1/files/0x0005000000016909-63.dat aspack_v212_v242 - 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-1-5-21-939655444-3071939294-1401108526-1000\Control Panel\International\Geo\Nation WScript.exe Key value queried \REGISTRY\USER\S-1-5-21-939655444-3071939294-1401108526-1000\Control Panel\International\Geo\Nation jaffacakes118_Trojan.Win32.Agent.gen.exe Key value queried \REGISTRY\USER\S-1-5-21-939655444-3071939294-1401108526-1000\Control Panel\International\Geo\Nation RMS.exe - Executes dropped EXE 8 IoCs
pid Process 4336 RMS.exe 4256 rutserv.exe 4988 rutserv.exe 4188 rutserv.exe 4572 rutserv.exe 3404 rfusclient.exe 548 rfusclient.exe 3528 rfusclient.exe - Drops file in System32 directory 3 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\rutserv.pdb rutserv.exe File opened for modification C:\Windows\SysWOW64\exe\rutserv.pdb rutserv.exe File opened for modification C:\Windows\SysWOW64\symbols\exe\rutserv.pdb rutserv.exe - Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs
pid Process 1092 WScript.exe -
resource yara_rule behavioral1/files/0x000900000001d8a5-62.dat upx behavioral1/files/0x001600000001b686-61.dat upx - Drops file in Program Files directory 7 IoCs
description ioc Process File opened for modification C:\Program Files\0\1\0.bat jaffacakes118_Trojan.Win32.Agent.gen.exe File created C:\Program Files\0\1\RMS.exe jaffacakes118_Trojan.Win32.Agent.gen.exe File opened for modification C:\Program Files\0\1\RMS.exe jaffacakes118_Trojan.Win32.Agent.gen.exe File opened for modification C:\Program Files\0 jaffacakes118_Trojan.Win32.Agent.gen.exe File opened for modification C:\Program Files\0\1 jaffacakes118_Trojan.Win32.Agent.gen.exe File created C:\Program Files\0\1\__tmp_rar_sfx_access_check_240686968 jaffacakes118_Trojan.Win32.Agent.gen.exe File created C:\Program Files\0\1\0.bat jaffacakes118_Trojan.Win32.Agent.gen.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 2 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 624 cmd.exe 2224 cmd.exe - Reads the TCP/IP host and domain name from the registry 1 TTPs 14 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain rfusclient.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname rfusclient.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain rfusclient.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname rutserv.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname rutserv.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain rutserv.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain rutserv.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain rfusclient.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname rfusclient.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain rutserv.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname rutserv.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain rutserv.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname rutserv.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname rfusclient.exe - System Location Discovery: System Language Discovery 1 TTPs 17 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 taskkill.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language timeout.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rutserv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WScript.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rutserv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rfusclient.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language jaffacakes118_Trojan.Win32.Agent.gen.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regedit.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rfusclient.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RMS.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rutserv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rutserv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rfusclient.exe - Delays execution with timeout.exe 1 IoCs
pid Process 3452 timeout.exe - Kills process with taskkill 2 IoCs
pid Process 3004 taskkill.exe 2968 taskkill.exe - Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-939655444-3071939294-1401108526-1000_Classes\Local Settings RMS.exe - Runs .reg file with regedit 1 IoCs
pid Process 4444 regedit.exe - Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 4256 rutserv.exe 4256 rutserv.exe 4256 rutserv.exe 4256 rutserv.exe 4256 rutserv.exe 4256 rutserv.exe 4988 rutserv.exe 4988 rutserv.exe 4188 rutserv.exe 4188 rutserv.exe 4572 rutserv.exe 4572 rutserv.exe 4572 rutserv.exe 4572 rutserv.exe 4572 rutserv.exe 4572 rutserv.exe 3404 rfusclient.exe 3404 rfusclient.exe - Suspicious behavior: SetClipboardViewer 1 IoCs
pid Process 3528 rfusclient.exe - Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeDebugPrivilege 3004 taskkill.exe Token: SeDebugPrivilege 2968 taskkill.exe Token: SeDebugPrivilege 4256 rutserv.exe Token: SeDebugPrivilege 4188 rutserv.exe Token: SeTakeOwnershipPrivilege 4572 rutserv.exe Token: SeTcbPrivilege 4572 rutserv.exe Token: SeTcbPrivilege 4572 rutserv.exe - Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 4256 rutserv.exe 4988 rutserv.exe 4188 rutserv.exe 4572 rutserv.exe - Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 5008 wrote to memory of 624 5008 jaffacakes118_Trojan.Win32.Agent.gen.exe 97 PID 624 wrote to memory of 4336 624 cmd.exe 101 PID 4336 wrote to memory of 1092 4336 RMS.exe 103 PID 1092 wrote to memory of 2224 1092 WScript.exe 104 PID 2224 wrote to memory of 3004 2224 cmd.exe 106 PID 2224 wrote to memory of 2968 2224 cmd.exe 107 PID 2224 wrote to memory of 2180 2224 cmd.exe 108 PID 2224 wrote to memory of 4444 2224 cmd.exe 109 PID 2224 wrote to memory of 3452 2224 cmd.exe 110 PID 2224 wrote to memory of 4256 2224 cmd.exe 111 PID 2224 wrote to memory of 4988 2224 cmd.exe 112 PID 2224 wrote to memory of 4188 2224 cmd.exe 114 PID 4572 wrote to memory of 3404 4572 rutserv.exe 116 PID 4572 wrote to memory of 548 4572 rutserv.exe 117 PID 3404 wrote to memory of 3528 3404 rfusclient.exe 121
Processes
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C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.Agent.gen.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.Agent.gen.exe"1⤵
- Checks computer location settings
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5008 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Program Files\0\1\0.bat" "2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:624 -
C:\Program Files\0\1\RMS.exeRMS.exe -p123 -dc:\3⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4336 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\install.vbs"4⤵
- Checks computer location settings
- Executes a VBScript file via the Windows Script Host.
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1092 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\install.bat" "5⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2224 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im rutserv.exe6⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3004
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im rfusclient.exe6⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2968
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C:\Windows\SysWOW64\reg.exereg delete "HKLM\SYSTEM\Remote Manipulator System" /f6⤵
- System Location Discovery: System Language Discovery
PID:2180
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C:\Windows\SysWOW64\regedit.exeregedit /s "regedit.reg"6⤵
- System Location Discovery: System Language Discovery
- Runs .reg file with regedit
PID:4444
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C:\Windows\SysWOW64\timeout.exetimeout 26⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:3452
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\??\c:\rutserv.exerutserv.exe /silentinstall6⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4256
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\??\c:\rutserv.exerutserv.exe /firewall6⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4988
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\??\c:\rutserv.exerutserv.exe /start6⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4188
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\??\c:\rutserv.exec:\rutserv.exe1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4572 -
\??\c:\rfusclient.exec:\rfusclient.exe2⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3404 -
\??\c:\rfusclient.exec:\rfusclient.exe /tray3⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: SetClipboardViewer
PID:3528
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\??\c:\rfusclient.exec:\rfusclient.exe /tray2⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
PID:548
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Program Files\0\1\0.bat
- Size 19B
- SHA256 f8495bddef480fd954e15b273c4190848d85465a7a4abe46f1f0ed10e379c7f6
- MD5 c320442c5584092198d659922148c4b9
- SHA1 a0c8242607565e85a42d8caee0fb5a05b2364ff7
- SHA512 2fda94a4515a3d7d79795f0e390d4052d5b8bcdad80948f1588b82ede6cb531d2f90e3b048a53d5c05f06916fd444281cd4c31abde4d8e7ae2dffc70b87b09fe
- MD5 SHA1 SHA512
- Path C:\Program Files\0\1\RMS.exe
- Size 4.0MB
- SHA256 4267e50d2a3e152dae5d9f1a301da46cfc9fd6c740dfca506ab845468ca6e8ec
- MD5 4d4ec57a9ec5af0c7a167c06ee98c5e6
- SHA1 4862d8bc593fa7326357c070ca4befc5e09a3800
- SHA512 0a177f7f84527055f8a0db44ab5638016f7d868defcb36befb28e23339bbba6ea51ef6816c739b5605491439b5c3255304dfbbbd45f6c8056bf62d27e7a75f40
- SSDEEP 98304:g59ZBOjBosJmjnF+73wwksjCakTVngjVPQ2m2ZWZQI7:gFBOeTja37kSkThgT5ZWZQM
- TLSH T1EF1633523AD6C0B2D06008785727F753A9BDB9100A39C75F93D12F7EAD601E16B29EE3
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\install.bat
- Size 480B
- SHA256 240020a1a1941d1455135b5cb134e502a13b148be16cbb1552482aa03c29f8f3
- MD5 99db27d776e103cad354b531ee1f20b9
- SHA1 0b82d146df8528f66d1d14756f211fd3a8b1b91a
- SHA512 bc2ed33495c0a752397b2f1b9b7ba65f94ea5be82dde74c618342c83b68f1b92a4783b672cd427843533799e1af0875e0fd000b12236852e9e2fa93005d7ac69
- TLSH T1B0F09E170F43AF63A2200B8FE1CF756ADB1AD225AAE1001033B22065B452190336DA5C
- MD5 SHA1 SHA512 TLSH
- Path C:\install.vbs
- Size 117B
- SHA256 a7b067e9e4d44efe579c7cdb1e847d61af2323d3d73c6fffb22e178ae476f420
- MD5 65fc32766a238ff3e95984e325357dbb
- SHA1 3ac16a2648410be8aa75f3e2817fbf69bb0e8922
- SHA512 621e81fc2d0f9dd92413481864638a140bee94c7dbd31f944826b21bd6ad6b8a59e63de9f7f0025cffc0efb7f9975dde77f523510ee23ada62c152a63a22f608
- TLSH T1E8B0921E283BC01BA6FE81C281D78948668081204336882E3F81E88423264568826082
- MD5 SHA1 SHA512 TLSH
- Path C:\rutserv.exe
- Size 1.7MB
- SHA256 1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6
- MD5 37a8802017a212bb7f5255abc7857969
- SHA1 cb10c0d343c54538d12db8ed664d0a1fa35b6109
- SHA512 4e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0
- SSDEEP 24576:QwgmWJkITwoQx/kSnnCvTH2RxOhMJdDvvsrkKxYRlbsk2sMiVlgi8MgEZv6l:jQ3TwVxMSnTRx/vvOfSRlb1718Mgp
- TLSH T1B485334773888647E058EC7657A78D325B39F43CA4809E8BDB43923E3BA87FE5D16148
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path \??\c:\regedit.reg
- Size 11KB
- SHA256 967f4ccac9168e651c150389a1ea5ee619e7583454537ff73899c6b1b2774919
- MD5 228470dac29d0a9a6d3e91f6ee0d4154
- SHA1 da93b28adba70473dbbe6dfab14c28259d15600b
- SHA512 9b2b300ec21350df79325da449814d83c58b5b5b1370cb91aebe855e9593d40f66fe1b49d6bce99abb5e5d530777602ca38a74ba1a6299531efb7b562d0e7338
- SSDEEP 192:PX7frQHvJDzF/aQBeDUnQbwCUuq+3SJB1mM:PrfrYh9iynQbwCUDvl
- TLSH T108421AF73358D6DD09A01E345724360321CAC8634DEF928F79B5D88AF6AE92143AF791
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path \??\c:\rfusclient.exe
- Size 1.5MB
- SHA256 dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9
- MD5 b8667a1e84567fcf7821bcefb6a444af
- SHA1 9c1f91fe77ad357c8f81205d65c9067a270d61f0
- SHA512 ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852
- SSDEEP 24576:LmtNckat5iowNcaT4yywIC6FOyVHJUlLizuc1fDBYQ5wxiJcBysyVKICnRZcMAkT:Gac49CWOyVpwiKmf5PCByscKIqAriN
- TLSH T10E6523A2C5245399F136AB31096F0FC16F65DD0C961C966FEBDA347F5C36A2B6E0C022
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path \??\c:\vp8decoder.dll
- Size 155KB
- SHA256 4c04d7968a9fe9d9258968d3a722263334bbf5f8af972f206a71f17fa293aa74
- MD5 88318158527985702f61d169434a4940
- SHA1 3cc751ba256b5727eb0713aad6f554ff1e7bca57
- SHA512 5d88562b6c6d2a5b14390512712819238cd838914f7c48a27f017827cb9b825c24ff05a30333427acec93cd836e8f04158b86d17e6ac3dd62c55b2e2ff4e2aff
- SSDEEP 3072:I8S5PNJE4Ss7ptJXlU5iqiHQZ7LsIS3MBkfcehhhhhhEucP6dSnf1xESFeEkyBDi:IBNJEUvXlUYkZ75BkfcehhhhhhwP6wno
- TLSH T1D6F301C6FE5C6046E1E9A038F5D7D3DC1862AE645ED6F46BB168B29F2DF03050A0162B
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path \??\c:\vp8encoder.dll
- Size 593KB
- SHA256 81af82019d9f45a697a8ca1788f2c5c0205af9892efd94879dedf4bc06db4172
- MD5 6298c0af3d1d563834a218a9cc9f54bd
- SHA1 0185cd591e454ed072e5a5077b25c612f6849dc9
- SHA512 389d89053689537cdb582c0e8a7951a84549f0c36484db4346c31bdbe7cb93141f6a354069eb13e550297dc8ec35cd6899746e0c16abc876a0fe542cc450fffe
- SSDEEP 12288:ojSJ4/V1DY5m6VVXX39MdcAjrI/S3QIpFlGODn6blBaqUVVryazw:KH/XY5PVpX3y9E/SRFJczaqUPpw
- TLSH T136D422A07D159E65C44CE479A84FC78C09342CF25E68D25B77A82BFD38F6768A30846F
- MD5 SHA1 SHA512 SSDEEP TLSH