nanocore | ca230a0aadd983c52f3e895f67019d96769192331b5645c4544de9b5f1767b20

General

Target

a59c6b9d853e6a450d273cd17e4913b3.exe
Size

1.0MB
MD5

a59c6b9d853e6a450d273cd17e4913b3
SHA1

d13953183d5ec6c323349c33731049e8f8bf78bd
SHA256

ca230a0aadd983c52f3e895f67019d96769192331b5645c4544de9b5f1767b20
SHA512

6f3f21922015f878a07c899e59ab71a6c7b124a8b59c9946ae78fa5a902fd641183ce0ae09029f4192e17e415500c383f26ebd2f469e276f17f18168c1696c4f
SSDEEP

24576:BmfmE0bk3oLIK2tahP5VuY//EQui7jmrQ:BmfmE0bk3oLIK2qP3uxQ

Score

10^/10

nanocore strrat discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

strrat

C2

jegjav.duckdns.org:2027

194.59.31.150:2028

Attributes

license_id
khonsari
plugins_url
http://jbfrost.live/strigoi/server/?hwid=1&lid=m&ht=5
scheduled_task
true
secondary_startup
true
startup
true

Extracted

Family

nanocore

Version

1.2.2.0

C2

nanjuly.duckdns.org:43361

Mutex

25ef3864-fff6-4916-8e55-432f320822d1

Attributes

activate_away_mode
true
backup_connection_host
nanjuly.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2023-07-07T00:20:57.873286736Z
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
43361
default_group
43361
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
25ef3864-fff6-4916-8e55-432f320822d1
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
nanjuly.duckdns.org
primary_dns_server
8.8.8.8
request_elevation
true
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
STRRAT
STRRAT is a remote access tool than can steal credentials and log keystrokes.
trojan stealer strrat

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

Processes:

a59c6b9d853e6a450d273cd17e4913b3.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3455265224-196869244-2056873367-1000\Control Panel\International\Geo\Nation	a59c6b9d853e6a450d273cd17e4913b3.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

3680 icacls.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 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exe

pid process

5112 schtasks.exe
940 schtasks.exe

pid	process
3680	icacls.exe

pid	process
5112	schtasks.exe
940	schtasks.exe

Modifies registry class 1 IoCs

Processes:

a59c6b9d853e6a450d273cd17e4913b3.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3455265224-196869244-2056873367-1000_Classes\Local Settings	a59c6b9d853e6a450d273cd17e4913b3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a59c6b9d853e6a450d273cd17e4913b3.exe

description pid process

Token: SeDebugPrivilege 2984 a59c6b9d853e6a450d273cd17e4913b3.exe

description	pid	process
Token: SeDebugPrivilege	2984	a59c6b9d853e6a450d273cd17e4913b3.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

a59c6b9d853e6a450d273cd17e4913b3.exe

description	pid	process	target process
PID 2984 wrote to memory of 3712	2984	a59c6b9d853e6a450d273cd17e4913b3.exe	javaw.exe
PID 2984 wrote to memory of 3712	2984	a59c6b9d853e6a450d273cd17e4913b3.exe	javaw.exe

C:\Users\Admin\AppData\Local\Temp\a59c6b9d853e6a450d273cd17e4913b3.exe
"C:\Users\Admin\AppData\Local\Temp\a59c6b9d853e6a450d273cd17e4913b3.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Program Files\Java\jre-1.8\bin\javaw.exe
  "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Local\Temp\return jav.jar"
  2⤵
  PID:3712
- - C:\Windows\system32\icacls.exe
    C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
    3⤵
    - Modifies file permissions
    PID:3680
- C:\Users\Admin\AppData\Local\Temp\a59c6b9d853e6a450d273cd17e4913b3.exe
  C:\Users\Admin\AppData\Local\Temp\a59c6b9d853e6a450d273cd17e4913b3.exe
  2⤵
  PID:2512
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DPI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC5F0.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:940
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DPI Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC748.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:5112

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

File and Directory Permissions Modification

1

T1222

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

Filesize
46B

MD5
89ba6ad3b7a139ce5e0019d405250422

SHA1
f370ea5cde2f858d97b718b674b5c814d95c9668

SHA256
acef42598e62f5d16b0e9cef89140ca9dcdb3c0d22c83355d276a4c88c168a3a

SHA512
ba26e360e9fd6c83e60667c14f795dca60678a3ec12ee6bc9eb059361cfdb14e3415ac1777239394a486799ddf1f565a43282ef95867ac45db99cec941f26856

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\a59c6b9d853e6a450d273cd17e4913b3.exe.log

Filesize
1KB

MD5
489c7565f9b029ba9fadff774073cc98

SHA1
56c05089b33ee7e7dfa9e6a2d098164efd8e1150

SHA256
10bf6242da02dad8b2e1208b9dab9a7303cf986320e05e5ef20b99c9b71326d4

SHA512
ddea09c011a8d4f85905842c2f34c98add0110a0b6b3b2709718c3614a2c42dec5f4f5d5b9442cfd3c6c23e9a90c8c0b25c14c3dbd42faea9cc8dd232cace1ac

Download Submit
C:\Users\Admin\AppData\Local\Temp\return jav.jar

Filesize
92KB

MD5
739b771a0a86a6d667300ccddd204eda

SHA1
8db87ac79eae3134656d782fe59719a422a71f9d

SHA256
6bd739c14bd2b250e6d5e0459c2ccca5fe79b6c89790a2c80ad0b9713550af93

SHA512
9be7ab670bc5a24bd5aa9f7327a857272ff9df219c537e37b820ff77b8320af5ab59fb778481ab911acd349292ec4fffb6998ac2afccbb26f8c9dc047d9fa4b4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC5F0.tmp

Filesize
1KB

MD5
e18379b1011c02a925d4fefd1175dc9d

SHA1
cc81d48bef30ab89b93fdce0b65b60b36f49cfd3

SHA256
d8bcd0d15c4311c00b2e3744f37bc3635a8ecddf27134d2639932626b3a2ce9c

SHA512
a2d6f64b70f74e8eb878a7059e7fe15b5b3b81dcb81be03167d4f3d74c9fcaf3bcf02a6402d94f7cb6db5362912f8e69b706b627aaf4e866bac2368b6af33360

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC748.tmp

Filesize
1KB

MD5
a9af285136db016a568e4a53208f21d0

SHA1
e1afef2b7ee8ae945353315daa19a15574b435b7

SHA256
7dce876e35550f4a5b8ce8a8bbab3b0ccd7c5b8660f9db4b832466b77e3a8b7c

SHA512
80a1f5e463a87cddc0f66336e2dc4262daf98984c6f6c662c3615d615ebe7c58677c3d694edb3bd7816ccee969aae967c7efe8526ba423f274ac1210c0c8bd6e

Download Submit
memory/2512-19-0x00000000052E0000-0x000000000537C000-memory.dmp

Filesize
624KB

Download
memory/2512-37-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/2512-42-0x0000000006470000-0x000000000647A000-memory.dmp

Filesize
40KB

Download
memory/2512-41-0x00000000057D0000-0x00000000057EE000-memory.dmp

Filesize
120KB

Download
memory/2512-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2512-38-0x00000000051C0000-0x00000000051D0000-memory.dmp

Filesize
64KB

Download
memory/2512-22-0x00000000051F0000-0x00000000051FA000-memory.dmp

Filesize
40KB

Download
memory/2512-40-0x00000000057C0000-0x00000000057CA000-memory.dmp

Filesize
40KB

Download
memory/2512-18-0x0000000005240000-0x00000000052D2000-memory.dmp

Filesize
584KB

Download
memory/2984-1-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/2984-16-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/2984-0-0x0000000000210000-0x000000000031C000-memory.dmp

Filesize
1.0MB

Download
memory/2984-5-0x0000000006210000-0x0000000006278000-memory.dmp

Filesize
416KB

Download
memory/2984-2-0x0000000004CA0000-0x0000000004CB0000-memory.dmp

Filesize
64KB

Download
memory/2984-4-0x0000000006080000-0x00000000060E8000-memory.dmp

Filesize
416KB

Download
memory/2984-10-0x0000000006ED0000-0x0000000007474000-memory.dmp

Filesize
5.6MB

Download
memory/2984-3-0x0000000005F90000-0x0000000006010000-memory.dmp

Filesize
512KB

Download
memory/2984-6-0x00000000062D0000-0x000000000631C000-memory.dmp

Filesize
304KB

Download
memory/3712-109-0x000001CBC2100000-0x000001CBC2101000-memory.dmp

Filesize
4KB

Download
memory/3712-17-0x000001CBC39D0000-0x000001CBC49D0000-memory.dmp

Filesize
16.0MB

Download
memory/3712-48-0x000001CBC39D0000-0x000001CBC49D0000-memory.dmp

Filesize
16.0MB

Download
memory/3712-59-0x000001CBC2100000-0x000001CBC2101000-memory.dmp

Filesize
4KB

Download
memory/3712-62-0x000001CBC39D0000-0x000001CBC49D0000-memory.dmp

Filesize
16.0MB

Download
memory/3712-78-0x000001CBC39D0000-0x000001CBC49D0000-memory.dmp

Filesize
16.0MB

Download
memory/3712-82-0x000001CBC2100000-0x000001CBC2101000-memory.dmp

Filesize
4KB

Download
memory/3712-84-0x000001CBC2100000-0x000001CBC2101000-memory.dmp

Filesize
4KB

Download
memory/3712-86-0x000001CBC39D0000-0x000001CBC49D0000-memory.dmp

Filesize
16.0MB

Download
memory/3712-93-0x000001CBC39D0000-0x000001CBC49D0000-memory.dmp

Filesize
16.0MB

Download
memory/3712-34-0x000001CBC2100000-0x000001CBC2101000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads