Analysis
-
max time kernel
150s -
max time network
171s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
25-06-2022 17:41
Static task
static1
Behavioral task
behavioral1
Sample
35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe
Resource
win7-20220414-en
General
-
Target
35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe
-
Size
4.2MB
-
MD5
21e9fc2bb66da48d1cad9721382b5a62
-
SHA1
637fd7ca67edea08a437e1dc2666fd89c92f0f6e
-
SHA256
35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399
-
SHA512
8169a144f95f22879492570749dc7eca232f16496b18c9ee3035c620c4d804b6e817d78e32199f8d8bf43ec97abf17a113e9005cbe94e8d00debe8e2afa1d130
Malware Config
Signatures
-
ACProtect 1.3x - 1.4x DLL software 2 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x00060000000231ed-174.dat acprotect behavioral2/files/0x00060000000231ec-173.dat acprotect -
resource yara_rule behavioral2/files/0x00060000000231eb-141.dat aspack_v212_v242 behavioral2/files/0x00060000000231eb-142.dat aspack_v212_v242 behavioral2/files/0x00060000000231eb-151.dat aspack_v212_v242 behavioral2/files/0x00060000000231eb-159.dat aspack_v212_v242 behavioral2/files/0x00060000000231eb-166.dat aspack_v212_v242 behavioral2/files/0x00060000000231ea-175.dat aspack_v212_v242 behavioral2/files/0x00060000000231ea-179.dat aspack_v212_v242 behavioral2/files/0x00060000000231ea-178.dat aspack_v212_v242 behavioral2/files/0x00060000000231ea-194.dat aspack_v212_v242 -
Executes dropped EXE 7 IoCs
pid Process 4524 rutserv.exe 3652 rutserv.exe 2008 rutserv.exe 3928 rutserv.exe 5020 rfusclient.exe 1484 rfusclient.exe 3132 rfusclient.exe -
resource yara_rule behavioral2/files/0x00060000000231ed-174.dat upx behavioral2/files/0x00060000000231ec-173.dat upx -
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-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation WScript.exe -
Drops file in Program Files directory 16 IoCs
description ioc Process File opened for modification C:\Program Files\servers\install.bat 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File created C:\Program Files\servers\install.vbs 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File created C:\Program Files\servers\vp8decoder.dll 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File created C:\Program Files\servers\vp8encoder.dll 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File created C:\Program Files\servers\__tmp_rar_sfx_access_check_240556625 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File created C:\Program Files\servers\install.bat 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File created C:\Program Files\servers\rutserv.exe 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File opened for modification C:\Program Files\servers\rutserv.exe 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File opened for modification C:\Program Files\servers 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File opened for modification C:\Program Files\servers\install.vbs 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File opened for modification C:\Program Files\servers\vp8decoder.dll 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File opened for modification C:\Program Files\servers\vp8encoder.dll 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File created C:\Program Files\servers\regedit.reg 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File opened for modification C:\Program Files\servers\regedit.reg 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File created C:\Program Files\servers\rfusclient.exe 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe File opened for modification C:\Program Files\servers\rfusclient.exe 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Delays execution with timeout.exe 1 IoCs
pid Process 4592 timeout.exe -
Kills process with taskkill 2 IoCs
pid Process 2328 taskkill.exe 4472 taskkill.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000_Classes\Local Settings 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe -
Runs .reg file with regedit 1 IoCs
pid Process 4544 regedit.exe -
Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 4524 rutserv.exe 4524 rutserv.exe 4524 rutserv.exe 4524 rutserv.exe 4524 rutserv.exe 4524 rutserv.exe 3652 rutserv.exe 3652 rutserv.exe 2008 rutserv.exe 2008 rutserv.exe 3928 rutserv.exe 3928 rutserv.exe 3928 rutserv.exe 3928 rutserv.exe 3928 rutserv.exe 3928 rutserv.exe 1484 rfusclient.exe 1484 rfusclient.exe -
Suspicious behavior: SetClipboardViewer 1 IoCs
pid Process 3132 rfusclient.exe -
Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeDebugPrivilege 2328 taskkill.exe Token: SeDebugPrivilege 4472 taskkill.exe Token: SeDebugPrivilege 4524 rutserv.exe Token: SeDebugPrivilege 2008 rutserv.exe Token: SeTakeOwnershipPrivilege 3928 rutserv.exe Token: SeTcbPrivilege 3928 rutserv.exe Token: SeTcbPrivilege 3928 rutserv.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 4524 rutserv.exe 3652 rutserv.exe 2008 rutserv.exe 3928 rutserv.exe -
Suspicious use of WriteProcessMemory 39 IoCs
description pid Process procid_target PID 2856 wrote to memory of 612 2856 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe 82 PID 2856 wrote to memory of 612 2856 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe 82 PID 2856 wrote to memory of 612 2856 35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe 82 PID 612 wrote to memory of 5000 612 WScript.exe 83 PID 612 wrote to memory of 5000 612 WScript.exe 83 PID 612 wrote to memory of 5000 612 WScript.exe 83 PID 5000 wrote to memory of 2328 5000 cmd.exe 85 PID 5000 wrote to memory of 2328 5000 cmd.exe 85 PID 5000 wrote to memory of 2328 5000 cmd.exe 85 PID 5000 wrote to memory of 4472 5000 cmd.exe 86 PID 5000 wrote to memory of 4472 5000 cmd.exe 86 PID 5000 wrote to memory of 4472 5000 cmd.exe 86 PID 5000 wrote to memory of 4628 5000 cmd.exe 87 PID 5000 wrote to memory of 4628 5000 cmd.exe 87 PID 5000 wrote to memory of 4628 5000 cmd.exe 87 PID 5000 wrote to memory of 4544 5000 cmd.exe 88 PID 5000 wrote to memory of 4544 5000 cmd.exe 88 PID 5000 wrote to memory of 4544 5000 cmd.exe 88 PID 5000 wrote to memory of 4592 5000 cmd.exe 89 PID 5000 wrote to memory of 4592 5000 cmd.exe 89 PID 5000 wrote to memory of 4592 5000 cmd.exe 89 PID 5000 wrote to memory of 4524 5000 cmd.exe 90 PID 5000 wrote to memory of 4524 5000 cmd.exe 90 PID 5000 wrote to memory of 4524 5000 cmd.exe 90 PID 5000 wrote to memory of 3652 5000 cmd.exe 91 PID 5000 wrote to memory of 3652 5000 cmd.exe 91 PID 5000 wrote to memory of 3652 5000 cmd.exe 91 PID 5000 wrote to memory of 2008 5000 cmd.exe 92 PID 5000 wrote to memory of 2008 5000 cmd.exe 92 PID 5000 wrote to memory of 2008 5000 cmd.exe 92 PID 3928 wrote to memory of 1484 3928 rutserv.exe 95 PID 3928 wrote to memory of 1484 3928 rutserv.exe 95 PID 3928 wrote to memory of 1484 3928 rutserv.exe 95 PID 3928 wrote to memory of 5020 3928 rutserv.exe 94 PID 3928 wrote to memory of 5020 3928 rutserv.exe 94 PID 3928 wrote to memory of 5020 3928 rutserv.exe 94 PID 1484 wrote to memory of 3132 1484 rfusclient.exe 97 PID 1484 wrote to memory of 3132 1484 rfusclient.exe 97 PID 1484 wrote to memory of 3132 1484 rfusclient.exe 97
Processes
-
C:\Users\Admin\AppData\Local\Temp\35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe"C:\Users\Admin\AppData\Local\Temp\35c064da2a0956bc9a6006f578ab80fe125b4f6356ba544cedba3f6ebc9ce399.exe"1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2856 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Program Files\servers\install.vbs"2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:612 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Program Files\servers\install.bat" "3⤵
- Suspicious use of WriteProcessMemory
PID:5000 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im rutserv.exe4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2328
-
-
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im rfusclient.exe4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4472
-
-
C:\Windows\SysWOW64\reg.exereg delete "HKLM\SYSTEM\Remote Manipulator System" /f4⤵PID:4628
-
-
C:\Windows\SysWOW64\regedit.exeregedit /s "regedit.reg"4⤵
- Runs .reg file with regedit
PID:4544
-
-
C:\Windows\SysWOW64\timeout.exetimeout 24⤵
- Delays execution with timeout.exe
PID:4592
-
-
C:\Program Files\servers\rutserv.exerutserv.exe /silentinstall4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4524
-
-
C:\Program Files\servers\rutserv.exerutserv.exe /firewall4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:3652
-
-
C:\Program Files\servers\rutserv.exerutserv.exe /start4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2008
-
-
-
-
C:\Program Files\servers\rutserv.exe"C:\Program Files\servers\rutserv.exe"1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3928 -
C:\Program Files\servers\rfusclient.exe"C:\Program Files\servers\rfusclient.exe" /tray2⤵
- Executes dropped EXE
PID:5020
-
-
C:\Program Files\servers\rfusclient.exe"C:\Program Files\servers\rfusclient.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1484 -
C:\Program Files\servers\rfusclient.exe"C:\Program Files\servers\rfusclient.exe" /tray3⤵
- Executes dropped EXE
- Suspicious behavior: SetClipboardViewer
PID:3132
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
304B
MD5b48dac7ad07938601db8903e8c7156d2
SHA124f71c0e377e624a58ce136c4227e0224f0ddc27
SHA256de2544dd3d7b05965d0b1a454438af449372469d41678046a2dd7cd7f60f5a19
SHA51204b0843a6d0cf545c0ed26fea99f5d94e554f8f522b4eef66bde979e6e2b673c641ac246e8157126126f7e4884935494934545d5b37912d607e2832df1054859
-
Filesize
117B
MD565fc32766a238ff3e95984e325357dbb
SHA13ac16a2648410be8aa75f3e2817fbf69bb0e8922
SHA256a7b067e9e4d44efe579c7cdb1e847d61af2323d3d73c6fffb22e178ae476f420
SHA512621e81fc2d0f9dd92413481864638a140bee94c7dbd31f944826b21bd6ad6b8a59e63de9f7f0025cffc0efb7f9975dde77f523510ee23ada62c152a63a22f608
-
Filesize
11KB
MD51af884daf80a198ffbf15c9b8dfc6c22
SHA12e739eaf745589120d7ab7cc84620dbd23c6bc34
SHA256cd8c505eb4871be9ed511d2d3edfc0da66a6c539c64179628a491168054daf8c
SHA512925c854ea40c890e49cbcf77a41ce6eadf81dc05f8256bbf34860ba00c29b26fa6a5deaf9431f0b6d9639fcae557f634b0ceb7e0d5b7c552095121328e31b9dc
-
Filesize
1.5MB
MD5b8667a1e84567fcf7821bcefb6a444af
SHA19c1f91fe77ad357c8f81205d65c9067a270d61f0
SHA256dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9
SHA512ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852
-
Filesize
1.5MB
MD5b8667a1e84567fcf7821bcefb6a444af
SHA19c1f91fe77ad357c8f81205d65c9067a270d61f0
SHA256dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9
SHA512ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852
-
Filesize
1.5MB
MD5b8667a1e84567fcf7821bcefb6a444af
SHA19c1f91fe77ad357c8f81205d65c9067a270d61f0
SHA256dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9
SHA512ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852
-
Filesize
1.5MB
MD5b8667a1e84567fcf7821bcefb6a444af
SHA19c1f91fe77ad357c8f81205d65c9067a270d61f0
SHA256dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9
SHA512ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852
-
Filesize
1.7MB
MD537a8802017a212bb7f5255abc7857969
SHA1cb10c0d343c54538d12db8ed664d0a1fa35b6109
SHA2561699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6
SHA5124e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0
-
Filesize
1.7MB
MD537a8802017a212bb7f5255abc7857969
SHA1cb10c0d343c54538d12db8ed664d0a1fa35b6109
SHA2561699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6
SHA5124e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0
-
Filesize
1.7MB
MD537a8802017a212bb7f5255abc7857969
SHA1cb10c0d343c54538d12db8ed664d0a1fa35b6109
SHA2561699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6
SHA5124e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0
-
Filesize
1.7MB
MD537a8802017a212bb7f5255abc7857969
SHA1cb10c0d343c54538d12db8ed664d0a1fa35b6109
SHA2561699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6
SHA5124e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0
-
Filesize
1.7MB
MD537a8802017a212bb7f5255abc7857969
SHA1cb10c0d343c54538d12db8ed664d0a1fa35b6109
SHA2561699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6
SHA5124e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0
-
Filesize
155KB
MD588318158527985702f61d169434a4940
SHA13cc751ba256b5727eb0713aad6f554ff1e7bca57
SHA2564c04d7968a9fe9d9258968d3a722263334bbf5f8af972f206a71f17fa293aa74
SHA5125d88562b6c6d2a5b14390512712819238cd838914f7c48a27f017827cb9b825c24ff05a30333427acec93cd836e8f04158b86d17e6ac3dd62c55b2e2ff4e2aff
-
Filesize
593KB
MD56298c0af3d1d563834a218a9cc9f54bd
SHA10185cd591e454ed072e5a5077b25c612f6849dc9
SHA25681af82019d9f45a697a8ca1788f2c5c0205af9892efd94879dedf4bc06db4172
SHA512389d89053689537cdb582c0e8a7951a84549f0c36484db4346c31bdbe7cb93141f6a354069eb13e550297dc8ec35cd6899746e0c16abc876a0fe542cc450fffe