nanocore | a3f1de0f98f5a75b5fc523931eee8455cf096467bb54bc0e4da488ea6dc737cf

Analysis

max time kernel
146s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
08/05/2024, 17:25

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General

Target
DOC_94874893983478992873489302983743048583923.exe
Size 850KB
Sample240508-vzh9pshd98
SHA256 336272983fab8fef81adad8156f80d1b91060b152e3eeeb9530899adc307217d
MD5 bad0a833162e39d641882ecce81e9a47
SHA1 026f7e370b03b6c7557f98070b6d56e2b9ed97cd
SHA512 ea548949952e6b185d49651fcb9b97e3851b2eb11b661498d90f13ee7edf320e55775261994733684c31c2012ef6f968a5ba5a405e8c8d4066a2f9fbe1531d20
SSDEEP 12288:i6tyHCDxWn1q9I6/k+BNokPno3c+Bn6/yZEZ5TdSCGDyaod+ik4g8y3SoDvKxnJk:iI8n8Pno3xBCyZEcPW2rEloDvO
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

prime1.zapto.org:8885

Mutex

fffba83e-6ee4-4015-9987-2c220e55ca1c

Attributes

activate_away_mode
true
backup_connection_host
prime1.zapto.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-02-16T12:30:42.941919436Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
8885
default_group
billion$
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
fffba83e-6ee4-4015-9987-2c220e55ca1c
mutex_timeout
5015
prevent_system_sleep
true
primary_connection_host
prime1.zapto.org
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
4997
run_delay
0
run_on_startup
false
set_critical_process
true
timeout_interval
5009
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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	DOC_94874893983478992873489302983743048583923.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DOS Host = "C:\\Program Files (x86)\\DOS Host\\doshost.exe"	DOC_94874893983478992873489302983743048583923.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	DOC_94874893983478992873489302983743048583923.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2448 set thread context of 924	2448	DOC_94874893983478992873489302983743048583923.exe	98

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DOS Host\doshost.exe	DOC_94874893983478992873489302983743048583923.exe
File opened for modification	C:\Program Files (x86)\DOS Host\doshost.exe	DOC_94874893983478992873489302983743048583923.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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
2144	schtasks.exe
1828	schtasks.exe
3560	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2448	DOC_94874893983478992873489302983743048583923.exe
2448	DOC_94874893983478992873489302983743048583923.exe
2448	DOC_94874893983478992873489302983743048583923.exe
924	DOC_94874893983478992873489302983743048583923.exe
924	DOC_94874893983478992873489302983743048583923.exe
924	DOC_94874893983478992873489302983743048583923.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
924	DOC_94874893983478992873489302983743048583923.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2448	DOC_94874893983478992873489302983743048583923.exe
Token: SeDebugPrivilege	924	DOC_94874893983478992873489302983743048583923.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2448 wrote to memory of 2144	2448	DOC_94874893983478992873489302983743048583923.exe	95
PID 2448 wrote to memory of 2144	2448	DOC_94874893983478992873489302983743048583923.exe	95
PID 2448 wrote to memory of 2144	2448	DOC_94874893983478992873489302983743048583923.exe	95
PID 2448 wrote to memory of 4012	2448	DOC_94874893983478992873489302983743048583923.exe	97
PID 2448 wrote to memory of 4012	2448	DOC_94874893983478992873489302983743048583923.exe	97
PID 2448 wrote to memory of 4012	2448	DOC_94874893983478992873489302983743048583923.exe	97
PID 2448 wrote to memory of 924	2448	DOC_94874893983478992873489302983743048583923.exe	98
PID 2448 wrote to memory of 924	2448	DOC_94874893983478992873489302983743048583923.exe	98
PID 2448 wrote to memory of 924	2448	DOC_94874893983478992873489302983743048583923.exe	98
PID 2448 wrote to memory of 924	2448	DOC_94874893983478992873489302983743048583923.exe	98
PID 2448 wrote to memory of 924	2448	DOC_94874893983478992873489302983743048583923.exe	98
PID 2448 wrote to memory of 924	2448	DOC_94874893983478992873489302983743048583923.exe	98
PID 2448 wrote to memory of 924	2448	DOC_94874893983478992873489302983743048583923.exe	98
PID 2448 wrote to memory of 924	2448	DOC_94874893983478992873489302983743048583923.exe	98
PID 924 wrote to memory of 1828	924	DOC_94874893983478992873489302983743048583923.exe	99
PID 924 wrote to memory of 1828	924	DOC_94874893983478992873489302983743048583923.exe	99
PID 924 wrote to memory of 1828	924	DOC_94874893983478992873489302983743048583923.exe	99
PID 924 wrote to memory of 3560	924	DOC_94874893983478992873489302983743048583923.exe	101
PID 924 wrote to memory of 3560	924	DOC_94874893983478992873489302983743048583923.exe	101
PID 924 wrote to memory of 3560	924	DOC_94874893983478992873489302983743048583923.exe	101

C:\Users\Admin\AppData\Local\Temp\DOC_94874893983478992873489302983743048583923.exe
"C:\Users\Admin\AppData\Local\Temp\DOC_94874893983478992873489302983743048583923.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2448
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PcENsgGoLyfA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF08A.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2144
- C:\Users\Admin\AppData\Local\Temp\DOC_94874893983478992873489302983743048583923.exe
  "{path}"
  2⤵
  PID:4012
- C:\Users\Admin\AppData\Local\Temp\DOC_94874893983478992873489302983743048583923.exe
  "{path}"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:924
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DOS Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF349.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1828
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DOS Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF379.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

DOC_94874893983478992873489302983743048583923.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\DOC_94874893983478992873489302983743048583923.exe.log
Size 507B
SHA256 1690fec628f775dd3c3385b800eed126b37978ef2ffd592b024052724caafb5a
MD5 ab4c71d3ff6255edd4e5c1e09540f49e
SHA1 22e06bf4e258741b5df918061871cba998c50cea
SHA512 8fa7d0045796e6cda7c28e2b9a690ef550619828c1b5d0ebf8e8367aff4bf4d9f63121e5b4f199d30cb8006eb584c6767f4c59150749b8256dab9dd0ebd9f1af
MD5 SHA1 SHA512

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tmpF08A.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpF08A.tmp
Size 1KB
SHA256 c983277463bd60355fd8ee99090e1418fde48890ce67bd01eda39af3dff4b094
MD5 89a0cc4333749eeb57a6ae901bc862f7
SHA1 4331c361b62de7519abf24092f07efd1e9ddc03a
SHA512 8d031d26f4fffa9cbf507cb5ab6ad71a75789ec6f7391a9b9cbea9381899cee261720212b73de2e2107651c61a11660ce47753097363dffe261059f15352b58b
MD5 SHA1 SHA512

Submit Download

tmpF349.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpF349.tmp
Size 1KB
SHA256 521ed494a421a8f5c5b6228c1635a328dc4f073829d582df6ef8836ec6d139fc
MD5 fd792c4b9468f8f6a1c97a22a5656afd
SHA1 0d4c2e4736683fc468ca7a543c356319d459f8b0
SHA512 1dee3a7a44eea825396b78d5c921ac530b0d3185c9f06251987cc430533cbf70dc220d8e66582b0da914ac9ac994022525e7d4775bcf618e1aefc3366f67bf31
MD5 SHA1 SHA512

Submit Download

tmpF379.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpF379.tmp
Size 1KB
SHA256 edb658b6577a80126eaacdf2a566755b63d7b2438fe0bcf3aea83930036811f3
MD5 e380299eb53398115b7125b2b75c4798
SHA1 ee59b86ea0abf4097ff94bd940521c583803b036
SHA512 d9e3f3b1370fe4fce4a631a5d0669cef34bfe83dec146b606eff562c7cc450639304a732104f425a7ccfdded58064f28a98434a59ed8d93b595d64d1e1a2dde1
MD5 SHA1 SHA512

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memory/924-18-0x0000000005580000-0x000000000558A000-memory.dmp

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memory/924-17-0x0000000075220000-0x00000000759D0000-memory.dmp

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memory/924-30-0x0000000075220000-0x00000000759D0000-memory.dmp

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memory/924-29-0x0000000075220000-0x00000000759D0000-memory.dmp

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memory/924-27-0x0000000005730000-0x000000000574E000-memory.dmp

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memory/924-28-0x0000000005A70000-0x0000000005A7A000-memory.dmp

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memory/924-12-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/924-26-0x0000000005600000-0x000000000560A000-memory.dmp

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memory/924-16-0x0000000075220000-0x00000000759D0000-memory.dmp

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memory/2448-15-0x0000000075220000-0x00000000759D0000-memory.dmp

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memory/2448-5-0x000000007522E000-0x000000007522F000-memory.dmp

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memory/2448-0-0x000000007522E000-0x000000007522F000-memory.dmp

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memory/2448-2-0x0000000007510000-0x00000000075AC000-memory.dmp

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memory/2448-1-0x00000000005A0000-0x000000000067A000-memory.dmp

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memory/2448-3-0x0000000002A20000-0x0000000002A2A000-memory.dmp

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memory/2448-4-0x00000000075B0000-0x0000000007642000-memory.dmp

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memory/2448-8-0x00000000080E0000-0x0000000008684000-memory.dmp

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memory/2448-7-0x00000000074D0000-0x0000000007510000-memory.dmp

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memory/2448-6-0x0000000075220000-0x00000000759D0000-memory.dmp

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