Analysis
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max time kernel
145s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
26/01/2024, 11:34
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 3312 explorer.exe 4980 explorer.exe -
Uses the VBS compiler for execution 1 TTPs
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Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3828 set thread context of 1820 3828 quotation.scr.exe 96 PID 3312 set thread context of 4572 3312 explorer.exe 105 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2000 schtasks.exe 788 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1820 vbc.exe 1820 vbc.exe 1820 vbc.exe 1820 vbc.exe 1820 vbc.exe 1820 vbc.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1820 vbc.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1820 vbc.exe -
Suspicious use of WriteProcessMemory 40 IoCs
description pid Process procid_target PID 3828 wrote to memory of 1820 3828 quotation.scr.exe 96 PID 3828 wrote to memory of 1820 3828 quotation.scr.exe 96 PID 3828 wrote to memory of 1820 3828 quotation.scr.exe 96 PID 3828 wrote to memory of 1820 3828 quotation.scr.exe 96 PID 3828 wrote to memory of 1820 3828 quotation.scr.exe 96 PID 3828 wrote to memory of 1820 3828 quotation.scr.exe 96 PID 3828 wrote to memory of 1820 3828 quotation.scr.exe 96 PID 3828 wrote to memory of 1820 3828 quotation.scr.exe 96 PID 3828 wrote to memory of 2616 3828 quotation.scr.exe 97 PID 3828 wrote to memory of 2616 3828 quotation.scr.exe 97 PID 3828 wrote to memory of 2616 3828 quotation.scr.exe 97 PID 3828 wrote to memory of 1276 3828 quotation.scr.exe 102 PID 3828 wrote to memory of 1276 3828 quotation.scr.exe 102 PID 3828 wrote to memory of 1276 3828 quotation.scr.exe 102 PID 3828 wrote to memory of 3892 3828 quotation.scr.exe 101 PID 3828 wrote to memory of 3892 3828 quotation.scr.exe 101 PID 3828 wrote to memory of 3892 3828 quotation.scr.exe 101 PID 1276 wrote to memory of 2000 1276 cmd.exe 103 PID 1276 wrote to memory of 2000 1276 cmd.exe 103 PID 1276 wrote to memory of 2000 1276 cmd.exe 103 PID 3312 wrote to memory of 4572 3312 explorer.exe 105 PID 3312 wrote to memory of 4572 3312 explorer.exe 105 PID 3312 wrote to memory of 4572 3312 explorer.exe 105 PID 3312 wrote to memory of 4572 3312 explorer.exe 105 PID 3312 wrote to memory of 4572 3312 explorer.exe 105 PID 3312 wrote to memory of 4572 3312 explorer.exe 105 PID 3312 wrote to memory of 4572 3312 explorer.exe 105 PID 3312 wrote to memory of 4572 3312 explorer.exe 105 PID 3312 wrote to memory of 4436 3312 explorer.exe 108 PID 3312 wrote to memory of 4436 3312 explorer.exe 108 PID 3312 wrote to memory of 4436 3312 explorer.exe 108 PID 3312 wrote to memory of 1756 3312 explorer.exe 107 PID 3312 wrote to memory of 1756 3312 explorer.exe 107 PID 3312 wrote to memory of 1756 3312 explorer.exe 107 PID 3312 wrote to memory of 2680 3312 explorer.exe 106 PID 3312 wrote to memory of 2680 3312 explorer.exe 106 PID 3312 wrote to memory of 2680 3312 explorer.exe 106 PID 1756 wrote to memory of 788 1756 cmd.exe 112 PID 1756 wrote to memory of 788 1756 cmd.exe 112 PID 1756 wrote to memory of 788 1756 cmd.exe 112
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:3828 -
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:1820
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C:\Windows\SysWOW64\cmd.exe"cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\explorer"2⤵PID:2616
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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:3892
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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:1276 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\explorer\explorer.exe'" /f3⤵
- Creates scheduled task(s)
PID:2000
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C:\Users\Admin\AppData\Roaming\explorer\explorer.exeC:\Users\Admin\AppData\Roaming\explorer\explorer.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3312 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵PID:4572
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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"2⤵PID:2680
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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:1756 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\explorer\explorer.exe'" /f3⤵
- Creates scheduled task(s)
PID:788
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C:\Windows\SysWOW64\cmd.exe"cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\explorer"2⤵PID:4436
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C:\Users\Admin\AppData\Roaming\explorer\explorer.exeC:\Users\Admin\AppData\Roaming\explorer\explorer.exe1⤵
- Executes dropped EXE
PID:4980
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
612B
MD581ab0e59097e03cb04c32378024d6628
SHA1cc2a7a335f905e787906b6a0820acfbd4c5d0ed2
SHA256704dd8b8fb6dfccf43fd0712e36950102151fe7232d6602c53a42af967969533
SHA5123dd1374962c4d913ad6ec4207889abcca3e28946fa8937626bd2d13025a538e676bfc2efe76d27031d3f741bb3934104c0cf4e10da62758839add1fe543dfacb
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Filesize
295KB
MD538699281db788537bea1ce577eb81ea9
SHA139e11046b7c615a047875ca3a0eafd20d583d693
SHA2569598d353175682d82d7bbe9eca3d48c97552db2718e77007601f80541b7c8afb
SHA512fd33f696fc92ed4d496088715dbc82ca7c67e3049b1855ca56c3576381677274cdd1d437ea98cb3774c5bef0106a2dbc984c97b8c680d243cee104c042357c3f