nanocore | 4e31d493a6e64c76ff10026b147f95c6f2982860609803d88c8738a26fa3309f

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/01/2024, 12:36

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General

Target
Request For Quotation.scr.exe
Size 331KB
Sample240125-pswzbsffe2
SHA256 4e31d493a6e64c76ff10026b147f95c6f2982860609803d88c8738a26fa3309f
MD5 c6887a484d020149fd2cb421fd69cc2d
SHA1 b5e80f2574a75cc8918965392287244dc9ef8d8b
SHA512 0a72db3bdcee2dae02cd713a7a0e60dabae3120c41de02cfce8cc409a5fdf0bafda3b5c188345673e4b8b57ee2ceff182fd41c80bde356a40c1909926a07668f
SSDEEP 6144:9EviuZ5kqqHGepcTdDoWuQV6Y1LL4S8QnfcE5L4paEL2MQqg:S3CRmdcWfV6Y1zhfcYUpam1Q
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

harold.jetos.com:6051

Mutex

c21ee39c-274d-42dc-9878-9c010930f524

Attributes

activate_away_mode
true
backup_connection_host
harold.jetos.com
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2023-11-05T15:38:42.943803836Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
6051
default_group
sales224
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
c21ee39c-274d-42dc-9878-9c010930f524
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
harold.jetos.com
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

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

Executes dropped EXE 2 IoCs

pid	Process
3196	explorer.exe
4788	explorer.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3828 set thread context of 4612	3828	Request For Quotation.scr.exe	98
PID 3196 set thread context of 3824	3196	explorer.exe	107
PID 4788 set thread context of 3132	4788	explorer.exe	116

Creates scheduled task(s) 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
3136	schtasks.exe
2636	schtasks.exe
776	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4612	vbc.exe
4612	vbc.exe
4612	vbc.exe
4612	vbc.exe
4612	vbc.exe
4612	vbc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4612	vbc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4612	vbc.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 3828 wrote to memory of 4612	3828	Request For Quotation.scr.exe	98
PID 3828 wrote to memory of 4612	3828	Request For Quotation.scr.exe	98
PID 3828 wrote to memory of 4612	3828	Request For Quotation.scr.exe	98
PID 3828 wrote to memory of 4612	3828	Request For Quotation.scr.exe	98
PID 3828 wrote to memory of 4612	3828	Request For Quotation.scr.exe	98
PID 3828 wrote to memory of 4612	3828	Request For Quotation.scr.exe	98
PID 3828 wrote to memory of 4612	3828	Request For Quotation.scr.exe	98
PID 3828 wrote to memory of 4612	3828	Request For Quotation.scr.exe	98
PID 3828 wrote to memory of 5016	3828	Request For Quotation.scr.exe	101
PID 3828 wrote to memory of 5016	3828	Request For Quotation.scr.exe	101
PID 3828 wrote to memory of 5016	3828	Request For Quotation.scr.exe	101
PID 3828 wrote to memory of 4844	3828	Request For Quotation.scr.exe	100
PID 3828 wrote to memory of 4844	3828	Request For Quotation.scr.exe	100
PID 3828 wrote to memory of 4844	3828	Request For Quotation.scr.exe	100
PID 3828 wrote to memory of 552	3828	Request For Quotation.scr.exe	99
PID 3828 wrote to memory of 552	3828	Request For Quotation.scr.exe	99
PID 3828 wrote to memory of 552	3828	Request For Quotation.scr.exe	99
PID 4844 wrote to memory of 3136	4844	cmd.exe	105
PID 4844 wrote to memory of 3136	4844	cmd.exe	105
PID 4844 wrote to memory of 3136	4844	cmd.exe	105
PID 3196 wrote to memory of 3824	3196	explorer.exe	107
PID 3196 wrote to memory of 3824	3196	explorer.exe	107
PID 3196 wrote to memory of 3824	3196	explorer.exe	107
PID 3196 wrote to memory of 3824	3196	explorer.exe	107
PID 3196 wrote to memory of 3824	3196	explorer.exe	107
PID 3196 wrote to memory of 3824	3196	explorer.exe	107
PID 3196 wrote to memory of 3824	3196	explorer.exe	107
PID 3196 wrote to memory of 3824	3196	explorer.exe	107
PID 3196 wrote to memory of 1084	3196	explorer.exe	108
PID 3196 wrote to memory of 1084	3196	explorer.exe	108
PID 3196 wrote to memory of 1084	3196	explorer.exe	108
PID 3196 wrote to memory of 2092	3196	explorer.exe	109
PID 3196 wrote to memory of 2092	3196	explorer.exe	109
PID 3196 wrote to memory of 2092	3196	explorer.exe	109
PID 3196 wrote to memory of 1800	3196	explorer.exe	110
PID 3196 wrote to memory of 1800	3196	explorer.exe	110
PID 3196 wrote to memory of 1800	3196	explorer.exe	110
PID 2092 wrote to memory of 2636	2092	cmd.exe	114
PID 2092 wrote to memory of 2636	2092	cmd.exe	114
PID 2092 wrote to memory of 2636	2092	cmd.exe	114
PID 4788 wrote to memory of 3132	4788	explorer.exe	116
PID 4788 wrote to memory of 3132	4788	explorer.exe	116
PID 4788 wrote to memory of 3132	4788	explorer.exe	116
PID 4788 wrote to memory of 3132	4788	explorer.exe	116
PID 4788 wrote to memory of 3132	4788	explorer.exe	116
PID 4788 wrote to memory of 3132	4788	explorer.exe	116
PID 4788 wrote to memory of 3132	4788	explorer.exe	116
PID 4788 wrote to memory of 3132	4788	explorer.exe	116
PID 4788 wrote to memory of 4400	4788	explorer.exe	117
PID 4788 wrote to memory of 4400	4788	explorer.exe	117
PID 4788 wrote to memory of 4400	4788	explorer.exe	117
PID 4788 wrote to memory of 5016	4788	explorer.exe	118
PID 4788 wrote to memory of 5016	4788	explorer.exe	118
PID 4788 wrote to memory of 5016	4788	explorer.exe	118
PID 4788 wrote to memory of 5032	4788	explorer.exe	119
PID 4788 wrote to memory of 5032	4788	explorer.exe	119
PID 4788 wrote to memory of 5032	4788	explorer.exe	119
PID 5016 wrote to memory of 776	5016	cmd.exe	123
PID 5016 wrote to memory of 776	5016	cmd.exe	123
PID 5016 wrote to memory of 776	5016	cmd.exe	123

C:\Users\Admin\AppData\Local\Temp\Request For Quotation.scr.exe
"C:\Users\Admin\AppData\Local\Temp\Request For 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:4612
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\Request For Quotation.scr.exe" "C:\Users\Admin\AppData\Roaming\explorer\explorer.exe"
  2⤵
  PID:552
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\explorer\explorer.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4844
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\explorer\explorer.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:3136
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\explorer"
  2⤵
  PID:5016

C:\Users\Admin\AppData\Roaming\explorer\explorer.exe
C:\Users\Admin\AppData\Roaming\explorer\explorer.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3196
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  PID:3824
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\explorer"
  2⤵
  PID:1084
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\explorer\explorer.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2092
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\explorer\explorer.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:2636
- 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:1800

C:\Users\Admin\AppData\Roaming\explorer\explorer.exe
C:\Users\Admin\AppData\Roaming\explorer\explorer.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4788
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  PID:3132
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\explorer"
  2⤵
  PID:4400
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\explorer\explorer.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5016
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\explorer\explorer.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:776
- 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:5032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scripting

T1064

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Scripting

T1064

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

explorer.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\explorer.exe.log
Size 612B
SHA256 704dd8b8fb6dfccf43fd0712e36950102151fe7232d6602c53a42af967969533
MD5 81ab0e59097e03cb04c32378024d6628
SHA1 cc2a7a335f905e787906b6a0820acfbd4c5d0ed2
SHA512 3dd1374962c4d913ad6ec4207889abcca3e28946fa8937626bd2d13025a538e676bfc2efe76d27031d3f741bb3934104c0cf4e10da62758839add1fe543dfacb
MD5 SHA1 SHA512

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vbc.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\vbc.exe.log
Size 1KB
SHA256 e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99
MD5 84e77a587d94307c0ac1357eb4d3d46f
SHA1 83cc900f9401f43d181207d64c5adba7a85edc1e
SHA512 aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691
MD5 SHA1 SHA512

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explorer.exe

Path C:\Users\Admin\AppData\Roaming\explorer\explorer.exe
Size 331KB
SHA256 4e31d493a6e64c76ff10026b147f95c6f2982860609803d88c8738a26fa3309f
MD5 c6887a484d020149fd2cb421fd69cc2d
SHA1 b5e80f2574a75cc8918965392287244dc9ef8d8b
SHA512 0a72db3bdcee2dae02cd713a7a0e60dabae3120c41de02cfce8cc409a5fdf0bafda3b5c188345673e4b8b57ee2ceff182fd41c80bde356a40c1909926a07668f
SSDEEP 6144:9EviuZ5kqqHGepcTdDoWuQV6Y1LL4S8QnfcE5L4paEL2MQqg:S3CRmdcWfV6Y1zhfcYUpam1Q
MD5 SHA1 SHA512 SSDEEP

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memory/3132-61-0x0000000075060000-0x0000000075810000-memory.dmp

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memory/3132-59-0x00000000056F0000-0x0000000005700000-memory.dmp

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memory/3132-58-0x0000000075060000-0x0000000075810000-memory.dmp

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memory/3196-39-0x0000000005900000-0x0000000005910000-memory.dmp

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memory/3196-38-0x0000000075060000-0x0000000075810000-memory.dmp

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memory/3196-41-0x0000000075060000-0x0000000075810000-memory.dmp

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memory/3196-42-0x0000000005900000-0x0000000005910000-memory.dmp

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memory/3196-47-0x0000000075060000-0x0000000075810000-memory.dmp

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memory/3824-46-0x00000000055C0000-0x00000000055D0000-memory.dmp

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memory/3824-49-0x0000000075060000-0x0000000075810000-memory.dmp

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memory/3824-44-0x0000000075060000-0x0000000075810000-memory.dmp

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memory/3828-0-0x00000000002B0000-0x0000000000308000-memory.dmp

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memory/3828-10-0x0000000075060000-0x0000000075810000-memory.dmp

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memory/3828-5-0x0000000004E60000-0x0000000004EC6000-memory.dmp

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memory/3828-4-0x0000000075060000-0x0000000075810000-memory.dmp

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memory/3828-3-0x0000000005260000-0x0000000005804000-memory.dmp

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memory/3828-2-0x0000000004CA0000-0x0000000004CB0000-memory.dmp

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memory/3828-1-0x0000000075060000-0x0000000075810000-memory.dmp

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memory/4612-15-0x0000000005570000-0x000000000557A000-memory.dmp

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memory/4612-33-0x0000000006DE0000-0x0000000006DF4000-memory.dmp

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memory/4612-27-0x0000000006D40000-0x0000000006D4E000-memory.dmp

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memory/4612-26-0x0000000006D30000-0x0000000006D3C000-memory.dmp

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memory/4612-25-0x0000000006D20000-0x0000000006D32000-memory.dmp

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memory/4612-24-0x0000000006D10000-0x0000000006D1E000-memory.dmp

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memory/4612-22-0x0000000006CD0000-0x0000000006CE2000-memory.dmp

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memory/4612-29-0x0000000006D60000-0x0000000006D70000-memory.dmp

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memory/4612-37-0x0000000075060000-0x0000000075810000-memory.dmp

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memory/4612-40-0x0000000005890000-0x00000000058A0000-memory.dmp

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memory/4612-30-0x0000000006D80000-0x0000000006D94000-memory.dmp

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memory/4612-31-0x0000000006DA0000-0x0000000006DAE000-memory.dmp

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memory/4612-32-0x0000000006DB0000-0x0000000006DDE000-memory.dmp

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memory/4612-28-0x0000000006D50000-0x0000000006D64000-memory.dmp

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memory/4612-23-0x0000000006CE0000-0x0000000006CFA000-memory.dmp

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memory/4612-19-0x0000000006530000-0x000000000653A000-memory.dmp

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memory/4612-18-0x0000000005AA0000-0x0000000005ABE000-memory.dmp

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memory/4612-17-0x0000000005870000-0x000000000587A000-memory.dmp

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memory/4612-14-0x0000000005890000-0x00000000058A0000-memory.dmp

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memory/4612-6-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4612-8-0x0000000075060000-0x0000000075810000-memory.dmp

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memory/4612-9-0x00000000055C0000-0x0000000005652000-memory.dmp

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memory/4612-11-0x0000000005660000-0x00000000056FC000-memory.dmp

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memory/4788-55-0x0000000003130000-0x0000000003140000-memory.dmp

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memory/4788-54-0x0000000075060000-0x0000000075810000-memory.dmp

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memory/4788-53-0x0000000003130000-0x0000000003140000-memory.dmp

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memory/4788-60-0x0000000075060000-0x0000000075810000-memory.dmp

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memory/4788-52-0x0000000075060000-0x0000000075810000-memory.dmp

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