Analysis
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max time kernel
35s -
max time network
178s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
22-07-2021 08:02
Static task
static1
Behavioral task
behavioral1
Sample
b0876b8da9dcb8a3b22d2cbf2b6a4711.exe
Resource
win7v20210410
General
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Target
b0876b8da9dcb8a3b22d2cbf2b6a4711.exe
-
Size
552KB
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MD5
b0876b8da9dcb8a3b22d2cbf2b6a4711
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SHA1
80e619da78e64bf6845f284c50bfacf17c55a274
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SHA256
d6215a4b16d74db6dafc28a78f15885de77570347acfbac416f18b223ba08e26
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SHA512
3b52e3aba69434d0b13e26b359f28493c303593bfdb254d86d3f91f7bfde8f318bb11ffb3a9ee26547ee389ef181eb61e863e2060f2a950f6ebf0af94d26a146
Malware Config
Extracted
nanocore
1.2.2.0
asweee.jumpingcrab.com:8234
tryweaswweee.ydns.eu:8234
0bb207a5-6f92-4ff1-abb5-35e0dc25fe5d
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activate_away_mode
true
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backup_connection_host
tryweaswweee.ydns.eu
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backup_dns_server
tryweaswweee.ydns.eu
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buffer_size
65535
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build_time
2021-05-02T14:48:34.703881636Z
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bypass_user_account_control
false
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bypass_user_account_control_data
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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
8234
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default_group
AUGUST
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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
0bb207a5-6f92-4ff1-abb5-35e0dc25fe5d
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
asweee.jumpingcrab.com
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primary_dns_server
asweee.jumpingcrab.com
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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
true
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set_critical_process
true
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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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Processes:
b0876b8da9dcb8a3b22d2cbf2b6a4711.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA b0876b8da9dcb8a3b22d2cbf2b6a4711.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
b0876b8da9dcb8a3b22d2cbf2b6a4711.exedescription pid process target process PID 640 set thread context of 1576 640 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe b0876b8da9dcb8a3b22d2cbf2b6a4711.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
b0876b8da9dcb8a3b22d2cbf2b6a4711.exeb0876b8da9dcb8a3b22d2cbf2b6a4711.exepid process 640 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe 640 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe 1576 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe 1576 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe 1576 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe 1576 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe 1576 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe 1576 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
b0876b8da9dcb8a3b22d2cbf2b6a4711.exepid process 1576 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
b0876b8da9dcb8a3b22d2cbf2b6a4711.exeb0876b8da9dcb8a3b22d2cbf2b6a4711.exedescription pid process Token: SeDebugPrivilege 640 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe Token: SeDebugPrivilege 1576 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
b0876b8da9dcb8a3b22d2cbf2b6a4711.exeb0876b8da9dcb8a3b22d2cbf2b6a4711.exedescription pid process target process PID 640 wrote to memory of 1576 640 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe b0876b8da9dcb8a3b22d2cbf2b6a4711.exe PID 640 wrote to memory of 1576 640 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe b0876b8da9dcb8a3b22d2cbf2b6a4711.exe PID 640 wrote to memory of 1576 640 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe b0876b8da9dcb8a3b22d2cbf2b6a4711.exe PID 640 wrote to memory of 1576 640 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe b0876b8da9dcb8a3b22d2cbf2b6a4711.exe PID 640 wrote to memory of 1576 640 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe b0876b8da9dcb8a3b22d2cbf2b6a4711.exe PID 640 wrote to memory of 1576 640 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe b0876b8da9dcb8a3b22d2cbf2b6a4711.exe PID 640 wrote to memory of 1576 640 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe b0876b8da9dcb8a3b22d2cbf2b6a4711.exe PID 640 wrote to memory of 1576 640 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe b0876b8da9dcb8a3b22d2cbf2b6a4711.exe PID 640 wrote to memory of 1576 640 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe b0876b8da9dcb8a3b22d2cbf2b6a4711.exe PID 1576 wrote to memory of 1104 1576 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe schtasks.exe PID 1576 wrote to memory of 1104 1576 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe schtasks.exe PID 1576 wrote to memory of 1104 1576 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe schtasks.exe PID 1576 wrote to memory of 1104 1576 b0876b8da9dcb8a3b22d2cbf2b6a4711.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b0876b8da9dcb8a3b22d2cbf2b6a4711.exe"C:\Users\Admin\AppData\Local\Temp\b0876b8da9dcb8a3b22d2cbf2b6a4711.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\b0876b8da9dcb8a3b22d2cbf2b6a4711.exeC:\Users\Admin\AppData\Local\Temp\b0876b8da9dcb8a3b22d2cbf2b6a4711.exe2⤵
- Checks whether UAC is enabled
- 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 "LAN Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE2D0.tmp"3⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmpE2D0.tmpMD5
4e5f6cfdbfd4c5f38cbbc0166c0c5904
SHA1dccd07be924c706810eb0dedf89d8464dfe8e15d
SHA256ae8e86367fbfaadef8a7c43b61630da8bbacad62aeea561a8bc966cd4bbc377a
SHA5128261d46a3348c5bceabb49ece838801205df9436ec59774a2fb051b886701bd593fe7b820750f68e7afc2e47ad559ff3ebc7bff425d7d0b6cae5379edd181356
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memory/640-61-0x0000000004E00000-0x0000000004E01000-memory.dmpFilesize
4KB
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memory/640-62-0x0000000001F90000-0x0000000001FEF000-memory.dmpFilesize
380KB
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memory/640-67-0x0000000004F90000-0x0000000004FF2000-memory.dmpFilesize
392KB
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memory/640-59-0x0000000000370000-0x0000000000371000-memory.dmpFilesize
4KB
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memory/1104-72-0x0000000000000000-mapping.dmp
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memory/1576-77-0x0000000004400000-0x0000000004401000-memory.dmpFilesize
4KB
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memory/1576-80-0x0000000004370000-0x0000000004376000-memory.dmpFilesize
24KB
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memory/1576-69-0x000000000041E792-mapping.dmp
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memory/1576-74-0x0000000001E70000-0x0000000001E75000-memory.dmpFilesize
20KB
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memory/1576-75-0x0000000004120000-0x0000000004139000-memory.dmpFilesize
100KB
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memory/1576-76-0x0000000004140000-0x0000000004143000-memory.dmpFilesize
12KB
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memory/1576-68-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1576-78-0x00000000041B0000-0x00000000041BD000-memory.dmpFilesize
52KB
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memory/1576-79-0x00000000041C0000-0x00000000041D5000-memory.dmpFilesize
84KB
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memory/1576-70-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/1576-81-0x0000000004910000-0x000000000491C000-memory.dmpFilesize
48KB
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memory/1576-82-0x0000000004970000-0x0000000004977000-memory.dmpFilesize
28KB
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memory/1576-83-0x0000000004980000-0x0000000004986000-memory.dmpFilesize
24KB
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memory/1576-84-0x0000000004990000-0x000000000499D000-memory.dmpFilesize
52KB
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memory/1576-85-0x0000000004CD0000-0x0000000004CD9000-memory.dmpFilesize
36KB
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memory/1576-86-0x00000000049A0000-0x00000000049AF000-memory.dmpFilesize
60KB
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memory/1576-87-0x0000000004D20000-0x0000000004D2A000-memory.dmpFilesize
40KB
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memory/1576-88-0x0000000004F60000-0x0000000004F89000-memory.dmpFilesize
164KB
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memory/1576-89-0x0000000004E40000-0x0000000004E4F000-memory.dmpFilesize
60KB