Analysis
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max time kernel
149s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 18:40
Static task
static1
Behavioral task
behavioral1
Sample
rfq.exe
Resource
win7-20220414-en
General
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Target
rfq.exe
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Size
1.3MB
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MD5
d111f91326f17b3c438f112ef37f61c4
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SHA1
1571a7e954f971c956fcdd9c2e5547f7305e7359
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SHA256
1064f65ca25e0759b7cebcd985a6243c98ccd08317df9f87dd1c8b88c29e2a9a
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SHA512
1ebbda0af40d55da7375a5ec698c0aaa330e04be7727a76e2a68f19328a66e2d89fc743722c4740e2401c0918e78bbce7aebf8233916d78a340334322ff57d24
Malware Config
Extracted
nanocore
1.2.2.0
185.244.29.132:1985
127.0.0.1:1985
f61bbd75-d4b8-4ea7-be06-9084282264d7
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activate_away_mode
true
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backup_connection_host
127.0.0.1
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2020-02-21T01:06:21.461976936Z
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bypass_user_account_control
false
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bypass_user_account_control_data
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+
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clear_access_control
true
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clear_zone_identifier
false
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connect_delay
4000
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connection_port
1985
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default_group
Scarface
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enable_debug_mode
true
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gc_threshold
1.048576e+07
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keep_alive_timeout
30000
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keyboard_logging
false
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lan_timeout
2500
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max_packet_size
1.048576e+07
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mutex
f61bbd75-d4b8-4ea7-be06-9084282264d7
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
185.244.29.132
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primary_dns_server
8.8.8.8
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request_elevation
true
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restart_delay
5000
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run_delay
0
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run_on_startup
false
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set_critical_process
false
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timeout_interval
5000
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use_custom_dns_server
false
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version
1.2.2.0
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wan_timeout
8000
Signatures
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Drops startup file 1 IoCs
Processes:
rfq.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\odbcconf.url rfq.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
MSBuild.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ARP Service = "C:\\Program Files (x86)\\ARP Service\\arpsvc.exe" MSBuild.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
rfq.exedescription pid process target process PID 1468 set thread context of 1504 1468 rfq.exe MSBuild.exe -
Drops file in Program Files directory 2 IoCs
Processes:
MSBuild.exedescription ioc process File created C:\Program Files (x86)\ARP Service\arpsvc.exe MSBuild.exe File opened for modification C:\Program Files (x86)\ARP Service\arpsvc.exe MSBuild.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 1492 schtasks.exe 1096 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 16 IoCs
Processes:
MSBuild.exerfq.exepid process 1504 MSBuild.exe 1504 MSBuild.exe 1468 rfq.exe 1468 rfq.exe 1468 rfq.exe 1468 rfq.exe 1468 rfq.exe 1468 rfq.exe 1468 rfq.exe 1468 rfq.exe 1468 rfq.exe 1468 rfq.exe 1468 rfq.exe 1468 rfq.exe 1468 rfq.exe 1468 rfq.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
MSBuild.exepid process 1504 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
MSBuild.exedescription pid process Token: SeDebugPrivilege 1504 MSBuild.exe Token: SeDebugPrivilege 1504 MSBuild.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
Processes:
rfq.exepid process 1468 rfq.exe 1468 rfq.exe 1468 rfq.exe -
Suspicious use of SendNotifyMessage 3 IoCs
Processes:
rfq.exepid process 1468 rfq.exe 1468 rfq.exe 1468 rfq.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
rfq.exeMSBuild.exedescription pid process target process PID 1468 wrote to memory of 1504 1468 rfq.exe MSBuild.exe PID 1468 wrote to memory of 1504 1468 rfq.exe MSBuild.exe PID 1468 wrote to memory of 1504 1468 rfq.exe MSBuild.exe PID 1468 wrote to memory of 1504 1468 rfq.exe MSBuild.exe PID 1468 wrote to memory of 1504 1468 rfq.exe MSBuild.exe PID 1468 wrote to memory of 1504 1468 rfq.exe MSBuild.exe PID 1504 wrote to memory of 1492 1504 MSBuild.exe schtasks.exe PID 1504 wrote to memory of 1492 1504 MSBuild.exe schtasks.exe PID 1504 wrote to memory of 1492 1504 MSBuild.exe schtasks.exe PID 1504 wrote to memory of 1492 1504 MSBuild.exe schtasks.exe PID 1504 wrote to memory of 1096 1504 MSBuild.exe schtasks.exe PID 1504 wrote to memory of 1096 1504 MSBuild.exe schtasks.exe PID 1504 wrote to memory of 1096 1504 MSBuild.exe schtasks.exe PID 1504 wrote to memory of 1096 1504 MSBuild.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\rfq.exe"C:\Users\Admin\AppData\Local\Temp\rfq.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\MSBuild.exe"2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "ARP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp12E6.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "ARP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1518.tmp"3⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp12E6.tmpFilesize
1KB
MD5ae766004c0d8792953bafffe8f6a2e3b
SHA114b12f27543a401e2fe0af8052e116cab0032426
SHA2561abdd9b6a6b84e4ba1af1282dc84ce276c59ba253f4c4af05fea498a4fd99540
SHA512e530da4a5d4336fc37838d0e93b5eb3804b9c489c71f6954a47fc81a4c655bb72ec493e109cf96e6e3617d7623ac80697ad3bbd5ffc6281bafc8b34dca5e6567
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C:\Users\Admin\AppData\Local\Temp\tmp1518.tmpFilesize
1KB
MD51badb6e2b29a1c4bfff3c179d53ab96b
SHA14b2ad3e5f3826d252d1c8bf1c8f0702f39129fa1
SHA2566259ac4e6859a1b528d77ccea12b378f7dfa1eff359d9b8899414b4b1c484699
SHA51236338e2a74fd85c5f2c84be009981a7260692c1bcb121a42018209031082da69bf65640702d53e28b54871f9d44e65fdbebaf4771c530699c3e93981b58129b4
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memory/1096-70-0x0000000000000000-mapping.dmp
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memory/1468-66-0x0000000002DC0000-0x0000000002E26000-memory.dmpFilesize
408KB
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memory/1468-54-0x0000000075371000-0x0000000075373000-memory.dmpFilesize
8KB
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memory/1468-65-0x0000000001030000-0x0000000001096000-memory.dmpFilesize
408KB
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memory/1492-68-0x0000000000000000-mapping.dmp
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memory/1504-62-0x000000000041E792-mapping.dmp
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memory/1504-64-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1504-63-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1504-57-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1504-55-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1504-72-0x0000000073D40000-0x00000000742EB000-memory.dmpFilesize
5.7MB