Analysis
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max time kernel
148s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
26/01/2024, 11:31
Static task
static1
Behavioral task
behavioral1
Sample
quotation.scr.exe
Resource
win7-20231215-en
General
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Target
quotation.scr.exe
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Size
295KB
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MD5
38699281db788537bea1ce577eb81ea9
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SHA1
39e11046b7c615a047875ca3a0eafd20d583d693
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SHA256
9598d353175682d82d7bbe9eca3d48c97552db2718e77007601f80541b7c8afb
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SHA512
fd33f696fc92ed4d496088715dbc82ca7c67e3049b1855ca56c3576381677274cdd1d437ea98cb3774c5bef0106a2dbc984c97b8c680d243cee104c042357c3f
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SSDEEP
6144:mfzUOcy4y9KPUapZTWJSij3SoiQxTwMdU8gP2iDeE/T1u/cO:ozUO99K1Wdj3STsTwWUtyE8/c
Malware Config
Extracted
nanocore
1.2.2.0
harold.jetos.com:6051
c21ee39c-274d-42dc-9878-9c010930f524
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activate_away_mode
true
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backup_connection_host
harold.jetos.com
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2023-11-05T15:38:42.943803836Z
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bypass_user_account_control
true
- 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
6051
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default_group
sales224
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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
c21ee39c-274d-42dc-9878-9c010930f524
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
harold.jetos.com
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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
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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Executes dropped EXE 2 IoCs
pid Process 2552 explorer.exe 1132 explorer.exe -
Uses the VBS compiler for execution 1 TTPs
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Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 1716 set thread context of 2828 1716 quotation.scr.exe 28 PID 2552 set thread context of 2752 2552 explorer.exe 41 PID 1132 set thread context of 1500 1132 explorer.exe 49 -
Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2644 schtasks.exe 1072 schtasks.exe 2184 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2828 vbc.exe 2828 vbc.exe 2828 vbc.exe 2828 vbc.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2828 vbc.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2828 vbc.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1716 wrote to memory of 2828 1716 quotation.scr.exe 28 PID 1716 wrote to memory of 2828 1716 quotation.scr.exe 28 PID 1716 wrote to memory of 2828 1716 quotation.scr.exe 28 PID 1716 wrote to memory of 2828 1716 quotation.scr.exe 28 PID 1716 wrote to memory of 2828 1716 quotation.scr.exe 28 PID 1716 wrote to memory of 2828 1716 quotation.scr.exe 28 PID 1716 wrote to memory of 2828 1716 quotation.scr.exe 28 PID 1716 wrote to memory of 2828 1716 quotation.scr.exe 28 PID 1716 wrote to memory of 2828 1716 quotation.scr.exe 28 PID 1716 wrote to memory of 2024 1716 quotation.scr.exe 29 PID 1716 wrote to memory of 2024 1716 quotation.scr.exe 29 PID 1716 wrote to memory of 2024 1716 quotation.scr.exe 29 PID 1716 wrote to memory of 2024 1716 quotation.scr.exe 29 PID 1716 wrote to memory of 2744 1716 quotation.scr.exe 35 PID 1716 wrote to memory of 2744 1716 quotation.scr.exe 35 PID 1716 wrote to memory of 2744 1716 quotation.scr.exe 35 PID 1716 wrote to memory of 2744 1716 quotation.scr.exe 35 PID 1716 wrote to memory of 2704 1716 quotation.scr.exe 34 PID 1716 wrote to memory of 2704 1716 quotation.scr.exe 34 PID 1716 wrote to memory of 2704 1716 quotation.scr.exe 34 PID 1716 wrote to memory of 2704 1716 quotation.scr.exe 34 PID 2744 wrote to memory of 2644 2744 cmd.exe 33 PID 2744 wrote to memory of 2644 2744 cmd.exe 33 PID 2744 wrote to memory of 2644 2744 cmd.exe 33 PID 2744 wrote to memory of 2644 2744 cmd.exe 33 PID 2848 wrote to memory of 2552 2848 taskeng.exe 39 PID 2848 wrote to memory of 2552 2848 taskeng.exe 39 PID 2848 wrote to memory of 2552 2848 taskeng.exe 39 PID 2848 wrote to memory of 2552 2848 taskeng.exe 39 PID 2552 wrote to memory of 2752 2552 explorer.exe 41 PID 2552 wrote to memory of 2752 2552 explorer.exe 41 PID 2552 wrote to memory of 2752 2552 explorer.exe 41 PID 2552 wrote to memory of 2752 2552 explorer.exe 41 PID 2552 wrote to memory of 2752 2552 explorer.exe 41 PID 2552 wrote to memory of 2752 2552 explorer.exe 41 PID 2552 wrote to memory of 2752 2552 explorer.exe 41 PID 2552 wrote to memory of 2752 2552 explorer.exe 41 PID 2552 wrote to memory of 2752 2552 explorer.exe 41 PID 2552 wrote to memory of 2072 2552 explorer.exe 40 PID 2552 wrote to memory of 2072 2552 explorer.exe 40 PID 2552 wrote to memory of 2072 2552 explorer.exe 40 PID 2552 wrote to memory of 2072 2552 explorer.exe 40 PID 2552 wrote to memory of 684 2552 explorer.exe 45 PID 2552 wrote to memory of 684 2552 explorer.exe 45 PID 2552 wrote to memory of 684 2552 explorer.exe 45 PID 2552 wrote to memory of 684 2552 explorer.exe 45 PID 2552 wrote to memory of 696 2552 explorer.exe 44 PID 2552 wrote to memory of 696 2552 explorer.exe 44 PID 2552 wrote to memory of 696 2552 explorer.exe 44 PID 2552 wrote to memory of 696 2552 explorer.exe 44 PID 684 wrote to memory of 1072 684 cmd.exe 46 PID 684 wrote to memory of 1072 684 cmd.exe 46 PID 684 wrote to memory of 1072 684 cmd.exe 46 PID 684 wrote to memory of 1072 684 cmd.exe 46 PID 2848 wrote to memory of 1132 2848 taskeng.exe 48 PID 2848 wrote to memory of 1132 2848 taskeng.exe 48 PID 2848 wrote to memory of 1132 2848 taskeng.exe 48 PID 2848 wrote to memory of 1132 2848 taskeng.exe 48 PID 1132 wrote to memory of 1500 1132 explorer.exe 49 PID 1132 wrote to memory of 1500 1132 explorer.exe 49 PID 1132 wrote to memory of 1500 1132 explorer.exe 49 PID 1132 wrote to memory of 1500 1132 explorer.exe 49 PID 1132 wrote to memory of 1500 1132 explorer.exe 49 PID 1132 wrote to memory of 1500 1132 explorer.exe 49
Processes
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C:\Users\Admin\AppData\Local\Temp\quotation.scr.exe"C:\Users\Admin\AppData\Local\Temp\quotation.scr.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2828
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C:\Windows\SysWOW64\cmd.exe"cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\explorer"2⤵PID:2024
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C:\Windows\SysWOW64\cmd.exe"cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\quotation.scr.exe" "C:\Users\Admin\AppData\Roaming\explorer\explorer.exe"2⤵PID:2704
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C:\Windows\SysWOW64\cmd.exe"cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\explorer\explorer.exe'" /f2⤵
- Suspicious use of WriteProcessMemory
PID:2744
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\explorer\explorer.exe'" /f1⤵
- Creates scheduled task(s)
PID:2644
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C:\Windows\system32\taskeng.exetaskeng.exe {B64F180A-87E8-4947-8F06-57063889BBA0} S-1-5-21-3601492379-692465709-652514833-1000:CALKHSYM\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:2848 -
C:\Users\Admin\AppData\Roaming\explorer\explorer.exeC:\Users\Admin\AppData\Roaming\explorer\explorer.exe2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2552 -
C:\Windows\SysWOW64\cmd.exe"cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\explorer"3⤵PID:2072
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"3⤵PID:2752
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C:\Windows\SysWOW64\cmd.exe"cmd" /c copy "C:\Users\Admin\AppData\Roaming\explorer\explorer.exe" "C:\Users\Admin\AppData\Roaming\explorer\explorer.exe"3⤵PID:696
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C:\Windows\SysWOW64\cmd.exe"cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\explorer\explorer.exe'" /f3⤵
- Suspicious use of WriteProcessMemory
PID:684 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\explorer\explorer.exe'" /f4⤵
- Creates scheduled task(s)
PID:1072
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C:\Users\Admin\AppData\Roaming\explorer\explorer.exeC:\Users\Admin\AppData\Roaming\explorer\explorer.exe2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1132 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"3⤵PID:1500
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C:\Windows\SysWOW64\cmd.exe"cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\explorer"3⤵PID:1248
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C:\Windows\SysWOW64\cmd.exe"cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\explorer\explorer.exe'" /f3⤵PID:2820
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\explorer\explorer.exe'" /f4⤵
- Creates scheduled task(s)
PID:2184
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C:\Windows\SysWOW64\cmd.exe"cmd" /c copy "C:\Users\Admin\AppData\Roaming\explorer\explorer.exe" "C:\Users\Admin\AppData\Roaming\explorer\explorer.exe"3⤵PID:2480
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
295KB
MD538699281db788537bea1ce577eb81ea9
SHA139e11046b7c615a047875ca3a0eafd20d583d693
SHA2569598d353175682d82d7bbe9eca3d48c97552db2718e77007601f80541b7c8afb
SHA512fd33f696fc92ed4d496088715dbc82ca7c67e3049b1855ca56c3576381677274cdd1d437ea98cb3774c5bef0106a2dbc984c97b8c680d243cee104c042357c3f