Analysis
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max time kernel
156s -
max time network
184s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
21-10-2022 18:55
Static task
static1
Behavioral task
behavioral1
Sample
34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe
Resource
win7-20220901-en
General
-
Target
34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe
-
Size
569KB
-
MD5
71d4a646c0eb434d761da6bff2a4d360
-
SHA1
9dbdf620044a47a866af63197c11e749c067f885
-
SHA256
34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461
-
SHA512
561e229d88112adecaec76547740d6f197acb9ab262e7dcc4a365e91c9d5e21adb667a848f7f07b67fc5cbb782d589fd674783ddd335cfbcc5f504de79537d6e
-
SSDEEP
12288:qRdbPfBY82sEUutQAectXLYXozBUQIP4dSP6ZCwJnwrwFIQ:E5vYUwQAecYozB0A5nwrj
Malware Config
Extracted
nanocore
1.2.2.2
Dres199.ddns.net:59
31a52d57-b280-4dc8-8582-23d97140cbb3
-
activate_away_mode
true
- backup_connection_host
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2015-05-21T16:00:55.188929836Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
59
-
default_group
Default
-
enable_debug_mode
true
-
gc_threshold
1.048576e+07
-
keep_alive_timeout
30000
-
keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.048576e+07
-
mutex
31a52d57-b280-4dc8-8582-23d97140cbb3
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
Dres199.ddns.net
-
primary_dns_server
8.8.8.8
-
request_elevation
true
-
restart_delay
5000
-
run_delay
0
-
run_on_startup
false
-
set_critical_process
true
-
timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.2
-
wan_timeout
8000
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exedescription pid process target process PID 4348 set thread context of 8 4348 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3484 8 WerFault.exe 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.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 use of UnmapMainImage 1 IoCs
Processes:
34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exepid process 8 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exedescription pid process target process PID 4348 wrote to memory of 5076 4348 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe schtasks.exe PID 4348 wrote to memory of 5076 4348 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe schtasks.exe PID 4348 wrote to memory of 5076 4348 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe schtasks.exe PID 4348 wrote to memory of 8 4348 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe PID 4348 wrote to memory of 8 4348 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe PID 4348 wrote to memory of 8 4348 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe PID 4348 wrote to memory of 8 4348 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe PID 4348 wrote to memory of 8 4348 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe PID 4348 wrote to memory of 8 4348 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe PID 4348 wrote to memory of 8 4348 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe PID 4348 wrote to memory of 8 4348 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe 34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe"C:\Users\Admin\AppData\Local\Temp\34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4348 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Update\Chrome" /XML "C:\Users\Admin\AppData\Local\Temp\a_____.xml"2⤵
- Creates scheduled task(s)
PID:5076 -
C:\Users\Admin\AppData\Local\Temp\34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe"C:\Users\Admin\AppData\Local\Temp\34b29da15099686b06efea5d8c9c5dc82afaaa346c63354df6fb3b6377f21461.exe"2⤵
- Suspicious use of UnmapMainImage
PID:8 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 8 -s 123⤵
- Program crash
PID:3484
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 8 -ip 81⤵PID:3568
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
-
Filesize
1KB
MD5b1e90ac848a31875b555f0c311cb4321
SHA176027ae14879f528f7d0dec52c4f091d4cc593ee
SHA25669b3091073e5b576b56801ed096fce3a758a44976cd67cb0887e274cf154a08a
SHA512b8244c1f557a6bb336afe61fd845526c63deb3e307c683589a5c1d4cfed2a95f72a3e4439878b0910ccbebb2618ab13052982affec61d255c77ca69c4a40610f