nanocore | 5218e441332d1797b3cb0cb5bc19690e74f6f36e3dd6f7cbc19bec2aef488925

Analysis

max time kernel
145s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
23/05/2024, 04:38

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General

Target
BALANCE_PAYMENT.exe
Size 311KB
Sample240523-e9qtjaea7t
SHA256 e0cbcef35186de417efe0e7aecb1d88073526260fca7b05b37160ebac37ba5b0
MD5 7259e551f0ca61ec0ccd8b2f9498f135
SHA1 9556302be792b619ffc4744ffcddf222f17a4308
SHA512 f37742e94f5a89e2a1b4e6dec78837011df7dd59d84d03bfae598b05aaadd9f7e5c8aca4f0803b41fa559546120154e716e622768e0eea78908eaa2903351aea
SSDEEP 6144:Yi4CZ4UZR6B39OxyifTuJ2T7RLQWOdfzvLrU+3zoDJESoxpGTYa:Yi4CZVZR43cIwQ2T6lg+AOSIAT1
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore evasion keylogger persistence rezer0 spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

thepunisherkills.duckdns.org:4300
127.0.0.1:4300

Mutex

e0e4581e-3d5b-424a-b854-ccddd9021f6b

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-01-08T19:56:16.943028836Z
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
4300
default_group
XXXXXX
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
e0e4581e-3d5b-424a-b854-ccddd9021f6b
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
thepunisherkills.duckdns.org
primary_dns_server
8.8.8.8
request_elevation
false
restart_delay
5000
run_delay
0
run_on_startup
false
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

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

resource	yara_rule
behavioral2/memory/4696-6-0x0000000006870000-0x00000000068B2000-memory.dmp	rezer0

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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	BALANCE_PAYMENT.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\AGP Service = "C:\\Program Files (x86)\\AGP Service\\agpsv.exe"	BALANCE_PAYMENT.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	BALANCE_PAYMENT.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4696 set thread context of 2028	4696	BALANCE_PAYMENT.exe	88

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\AGP Service\agpsv.exe	BALANCE_PAYMENT.exe
File opened for modification	C:\Program Files (x86)\AGP Service\agpsv.exe	BALANCE_PAYMENT.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
1644	schtasks.exe
2084	schtasks.exe
1496	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4696	BALANCE_PAYMENT.exe
2028	BALANCE_PAYMENT.exe
2028	BALANCE_PAYMENT.exe
2028	BALANCE_PAYMENT.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2028	BALANCE_PAYMENT.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4696	BALANCE_PAYMENT.exe
Token: SeDebugPrivilege	2028	BALANCE_PAYMENT.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4696 wrote to memory of 1644	4696	BALANCE_PAYMENT.exe	86
PID 4696 wrote to memory of 1644	4696	BALANCE_PAYMENT.exe	86
PID 4696 wrote to memory of 1644	4696	BALANCE_PAYMENT.exe	86
PID 4696 wrote to memory of 2028	4696	BALANCE_PAYMENT.exe	88
PID 4696 wrote to memory of 2028	4696	BALANCE_PAYMENT.exe	88
PID 4696 wrote to memory of 2028	4696	BALANCE_PAYMENT.exe	88
PID 4696 wrote to memory of 2028	4696	BALANCE_PAYMENT.exe	88
PID 4696 wrote to memory of 2028	4696	BALANCE_PAYMENT.exe	88
PID 4696 wrote to memory of 2028	4696	BALANCE_PAYMENT.exe	88
PID 4696 wrote to memory of 2028	4696	BALANCE_PAYMENT.exe	88
PID 4696 wrote to memory of 2028	4696	BALANCE_PAYMENT.exe	88
PID 2028 wrote to memory of 2084	2028	BALANCE_PAYMENT.exe	89
PID 2028 wrote to memory of 2084	2028	BALANCE_PAYMENT.exe	89
PID 2028 wrote to memory of 2084	2028	BALANCE_PAYMENT.exe	89
PID 2028 wrote to memory of 1496	2028	BALANCE_PAYMENT.exe	91
PID 2028 wrote to memory of 1496	2028	BALANCE_PAYMENT.exe	91
PID 2028 wrote to memory of 1496	2028	BALANCE_PAYMENT.exe	91

C:\Users\Admin\AppData\Local\Temp\BALANCE_PAYMENT.exe
"C:\Users\Admin\AppData\Local\Temp\BALANCE_PAYMENT.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4696
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CPejPqzxawkd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp79C4.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1644
- C:\Users\Admin\AppData\Local\Temp\BALANCE_PAYMENT.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:2028
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "AGP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp80B9.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:2084
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "AGP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp80F8.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1496

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

BALANCE_PAYMENT.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\BALANCE_PAYMENT.exe.log
Size 1KB
SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
MD5 SHA1 SHA512

Submit Download

tmp79C4.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp79C4.tmp
Size 1KB
SHA256 3114cea0284653452b5cd24fa2b4bb0034aa2989a04300e6ac978f2fc78fd58a
MD5 ee5e23b1bc68f7c70e2047258d8b1f9a
SHA1 bb7f9ac26347b716e923466efbae39c1694eb3fa
SHA512 d800bce74331389ecd9d19b1d9c6741cd9fff921e07f897edd7b8d14ba973590041a177f95204e4548e1a9ceb99ca7c937a03616ce26c3a3a9fcabfb9ad62599
MD5 SHA1 SHA512

Submit Download

tmp80B9.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp80B9.tmp
Size 1KB
SHA256 fcd18373051a8cfea88c25dbe10afd486243d8451be0f18964b1c3eaeb421bd4
MD5 e64b9071d108e3475222f3dc254d8a17
SHA1 ca96ba1b23c923a11ea0da06c986d09ec938a738
SHA512 fb5e468b5f12e024c388058a8d86b77189046e8bdf63207a7324cc0957bf1e5ac35cb3450032dadfbe6c76a3b9d27c898dfce04d248f5265b2b3f49afc58fcef
MD5 SHA1 SHA512

Submit Download

tmp80F8.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp80F8.tmp
Size 1KB
SHA256 ce3933e772f663a834335cc2071e5e7b2d49a065b51d84a259054b8ef663e785
MD5 7a81ae69c04c8d95261eb5f490b7f869
SHA1 9f4f484d306fea15b2e7f9f16db660833bb1f8ce
SHA512 8260ab83106752a488e164bbed63ef334d34399bc9a5c09a0cfceba6aef48eafe5c64e4dfbd353ac3edfff2523b16c2b0287d34833a293c4436e068fae656de8
MD5 SHA1 SHA512

Submit Download

memory/2028-30-0x0000000074DC0000-0x0000000075570000-memory.dmp

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memory/2028-29-0x0000000074DC0000-0x0000000075570000-memory.dmp

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memory/2028-28-0x0000000006990000-0x000000000699A000-memory.dmp

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memory/2028-27-0x0000000005D70000-0x0000000005D8E000-memory.dmp

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memory/2028-26-0x0000000005D60000-0x0000000005D6A000-memory.dmp

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memory/2028-13-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2028-18-0x0000000074DC0000-0x0000000075570000-memory.dmp

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memory/2028-17-0x0000000074DC0000-0x0000000075570000-memory.dmp

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memory/4696-5-0x0000000074DC0000-0x0000000075570000-memory.dmp

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memory/4696-16-0x0000000074DC0000-0x0000000075570000-memory.dmp

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memory/4696-7-0x0000000006950000-0x00000000069EC000-memory.dmp

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memory/4696-6-0x0000000006870000-0x00000000068B2000-memory.dmp

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memory/4696-0-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

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memory/4696-4-0x00000000050D0000-0x00000000050DA000-memory.dmp

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memory/4696-3-0x0000000005140000-0x00000000051D2000-memory.dmp

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memory/4696-2-0x0000000005650000-0x0000000005BF4000-memory.dmp

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memory/4696-1-0x0000000000670000-0x00000000006C4000-memory.dmp

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