Analysis
-
max time kernel
146s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
29-04-2024 01:56
Static task
static1
Behavioral task
behavioral1
Sample
c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe
Resource
win7-20240220-en
General
-
Target
c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe
-
Size
1.4MB
-
MD5
7257ada04fb81f4a7cc024eca879188b
-
SHA1
bb40820a78fa5ac26589e557b2d2f14fac23cf45
-
SHA256
c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36
-
SHA512
193c3c73b01fcc7922c92d7162c2cce09ae6170a13d7e88d69978b5ccc93fc20938895df89e56122cf516eb13ceafe1f8c40086f181321ca33dfb6f4a78a5f35
-
SSDEEP
24576:6AHnh+eWsN3skA4RV1Hom2KXMmHaYDBNkmBRGEMdSR5ADIAsG/jJ45O:Nh+ZkldoPK8YaZSeIAmO
Malware Config
Extracted
nanocore
1.2.2.0
bnow.duckdns.org:4156
fc4000c4-f8ec-42dc-a0ad-1edfd7548ceb
-
activate_away_mode
true
-
backup_connection_host
bnow.duckdns.org
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2018-08-20T04:39:27.808758936Z
-
bypass_user_account_control
false
-
bypass_user_account_control_data
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
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
4156
-
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
fc4000c4-f8ec-42dc-a0ad-1edfd7548ceb
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
bnow.duckdns.org
-
primary_dns_server
8.8.8.8
-
request_elevation
true
-
restart_delay
5000
-
run_delay
0
-
run_on_startup
true
-
set_critical_process
true
-
timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8000
Signatures
-
Executes dropped EXE 2 IoCs
Processes:
igfxEM.exeigfxEM.exepid process 2008 igfxEM.exe 1268 igfxEM.exe -
Loads dropped DLL 2 IoCs
Processes:
igfxEM.exeigfxEM.exepid process 2008 igfxEM.exe 1268 igfxEM.exe -
Processes:
RegAsm.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegAsm.exe -
AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
Processes:
resource yara_rule C:\Users\Admin\WinSAT\igfxEM.exe autoit_exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exeigfxEM.exeigfxEM.exedescription pid process target process PID 1724 set thread context of 2356 1724 c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe RegAsm.exe PID 2008 set thread context of 2004 2008 igfxEM.exe RegAsm.exe PID 1268 set thread context of 324 1268 igfxEM.exe RegAsm.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Creates scheduled task(s) 1 TTPs 4 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exeschtasks.exeschtasks.exepid process 2596 schtasks.exe 1848 schtasks.exe 112 schtasks.exe 2592 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegAsm.exepid process 2356 RegAsm.exe 2356 RegAsm.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
RegAsm.exepid process 2356 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegAsm.exedescription pid process Token: SeDebugPrivilege 2356 RegAsm.exe -
Suspicious use of WriteProcessMemory 51 IoCs
Processes:
c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exeRegAsm.exetaskeng.exeigfxEM.exeigfxEM.exedescription pid process target process PID 1724 wrote to memory of 2356 1724 c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe RegAsm.exe PID 1724 wrote to memory of 2356 1724 c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe RegAsm.exe PID 1724 wrote to memory of 2356 1724 c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe RegAsm.exe PID 1724 wrote to memory of 2356 1724 c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe RegAsm.exe PID 1724 wrote to memory of 2356 1724 c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe RegAsm.exe PID 1724 wrote to memory of 2356 1724 c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe RegAsm.exe PID 1724 wrote to memory of 2356 1724 c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe RegAsm.exe PID 1724 wrote to memory of 2356 1724 c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe RegAsm.exe PID 1724 wrote to memory of 2356 1724 c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe RegAsm.exe PID 2356 wrote to memory of 2592 2356 RegAsm.exe schtasks.exe PID 2356 wrote to memory of 2592 2356 RegAsm.exe schtasks.exe PID 2356 wrote to memory of 2592 2356 RegAsm.exe schtasks.exe PID 2356 wrote to memory of 2592 2356 RegAsm.exe schtasks.exe PID 1724 wrote to memory of 2596 1724 c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe schtasks.exe PID 1724 wrote to memory of 2596 1724 c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe schtasks.exe PID 1724 wrote to memory of 2596 1724 c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe schtasks.exe PID 1724 wrote to memory of 2596 1724 c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe schtasks.exe PID 2736 wrote to memory of 2008 2736 taskeng.exe igfxEM.exe PID 2736 wrote to memory of 2008 2736 taskeng.exe igfxEM.exe PID 2736 wrote to memory of 2008 2736 taskeng.exe igfxEM.exe PID 2736 wrote to memory of 2008 2736 taskeng.exe igfxEM.exe PID 2008 wrote to memory of 2004 2008 igfxEM.exe RegAsm.exe PID 2008 wrote to memory of 2004 2008 igfxEM.exe RegAsm.exe PID 2008 wrote to memory of 2004 2008 igfxEM.exe RegAsm.exe PID 2008 wrote to memory of 2004 2008 igfxEM.exe RegAsm.exe PID 2008 wrote to memory of 2004 2008 igfxEM.exe RegAsm.exe PID 2008 wrote to memory of 2004 2008 igfxEM.exe RegAsm.exe PID 2008 wrote to memory of 2004 2008 igfxEM.exe RegAsm.exe PID 2008 wrote to memory of 2004 2008 igfxEM.exe RegAsm.exe PID 2008 wrote to memory of 2004 2008 igfxEM.exe RegAsm.exe PID 2008 wrote to memory of 1848 2008 igfxEM.exe schtasks.exe PID 2008 wrote to memory of 1848 2008 igfxEM.exe schtasks.exe PID 2008 wrote to memory of 1848 2008 igfxEM.exe schtasks.exe PID 2008 wrote to memory of 1848 2008 igfxEM.exe schtasks.exe PID 2736 wrote to memory of 1268 2736 taskeng.exe igfxEM.exe PID 2736 wrote to memory of 1268 2736 taskeng.exe igfxEM.exe PID 2736 wrote to memory of 1268 2736 taskeng.exe igfxEM.exe PID 2736 wrote to memory of 1268 2736 taskeng.exe igfxEM.exe PID 1268 wrote to memory of 324 1268 igfxEM.exe RegAsm.exe PID 1268 wrote to memory of 324 1268 igfxEM.exe RegAsm.exe PID 1268 wrote to memory of 324 1268 igfxEM.exe RegAsm.exe PID 1268 wrote to memory of 324 1268 igfxEM.exe RegAsm.exe PID 1268 wrote to memory of 324 1268 igfxEM.exe RegAsm.exe PID 1268 wrote to memory of 324 1268 igfxEM.exe RegAsm.exe PID 1268 wrote to memory of 324 1268 igfxEM.exe RegAsm.exe PID 1268 wrote to memory of 324 1268 igfxEM.exe RegAsm.exe PID 1268 wrote to memory of 324 1268 igfxEM.exe RegAsm.exe PID 1268 wrote to memory of 112 1268 igfxEM.exe schtasks.exe PID 1268 wrote to memory of 112 1268 igfxEM.exe schtasks.exe PID 1268 wrote to memory of 112 1268 igfxEM.exe schtasks.exe PID 1268 wrote to memory of 112 1268 igfxEM.exe schtasks.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe"C:\Users\Admin\AppData\Local\Temp\c3a4207fc483b8954711b149904c1c92e9b19648f7b00462a4e01a041d172f36.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1724 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2356 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "TCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1065.tmp"3⤵
- Creates scheduled task(s)
PID:2592 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn azroles /tr "C:\Users\Admin\WinSAT\igfxEM.exe" /sc minute /mo 1 /F2⤵
- Creates scheduled task(s)
PID:2596
-
C:\Windows\system32\taskeng.exetaskeng.exe {FD5543E9-8149-401B-B93A-B42AF358045A} S-1-5-21-2721934792-624042501-2768869379-1000:BISMIZHX\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:2736 -
C:\Users\Admin\WinSAT\igfxEM.exeC:\Users\Admin\WinSAT\igfxEM.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2008 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"3⤵PID:2004
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn azroles /tr "C:\Users\Admin\WinSAT\igfxEM.exe" /sc minute /mo 1 /F3⤵
- Creates scheduled task(s)
PID:1848 -
C:\Users\Admin\WinSAT\igfxEM.exeC:\Users\Admin\WinSAT\igfxEM.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1268 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"3⤵PID:324
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn azroles /tr "C:\Users\Admin\WinSAT\igfxEM.exe" /sc minute /mo 1 /F3⤵
- Creates scheduled task(s)
PID:112
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\tmp1065.tmpFilesize
1KB
MD5c6f0625bf4c1cdfb699980c9243d3b22
SHA143de1fe580576935516327f17b5da0c656c72851
SHA2568dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576
SHA5129ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969
-
C:\Users\Admin\WinSAT\igfxEM.exeFilesize
1.4MB
MD52a09f22796068af9f846064ad8a324d1
SHA1a768619316f896a719d144ad6ab7069baf8bdc59
SHA2563a33402f4eabcb2475e86ee1041af49e9d1fd69f95ea2229d8af3726b316ddea
SHA512e104ccdec7ad6f709cfb1908b1b18bca60784bffada78efb242f18a848fa4abb071d5e9c0061a46cc65e0e9f81c971314f18236f5db234ff13f16c3d2c9fe656
-
C:\Users\Admin\azroles.lnkFilesize
719B
MD59bbfaae8d2d3cfee3543797706b51998
SHA114fff96bb34825cdcaf6e18d3a01479002eb5837
SHA2560df33e3f1c2305fc9d0fa00fc00102c4ceef9d733a15786010321897aadf9441
SHA512a443fef84c86e75d3b5e5f31e915373966d4b1265debfdfcf7627199dcb8d9049cfce36f4af808f68dea6e1a324dbcb8cccdb1b8a2250c1e3d2571f47ad37ac9
-
\??\PIPE\srvsvcMD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e
-
memory/1724-0-0x00000000001A0000-0x00000000001A1000-memory.dmpFilesize
4KB
-
memory/2356-10-0x00000000748E0000-0x0000000074E8B000-memory.dmpFilesize
5.7MB
-
memory/2356-2-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
-
memory/2356-8-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
-
memory/2356-15-0x00000000009A0000-0x00000000009E0000-memory.dmpFilesize
256KB
-
memory/2356-19-0x00000000748E0000-0x0000000074E8B000-memory.dmpFilesize
5.7MB
-
memory/2356-20-0x00000000009A0000-0x00000000009E0000-memory.dmpFilesize
256KB
-
memory/2356-9-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
-
memory/2356-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
-
memory/2356-1-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB