nanocore | eb2a3eddf72cab4dbef0fc06d7ac1127e32886e69ac31b55914f3a54e66acf0c

General

Target

DHL_2121015942.exe
Size

347KB
MD5

8c0f3c54e2be6e84754ced425b5bb02c
SHA1

a37dbfa45e3a1dfa58043392ed5aa729e56aca48
SHA256

ba0536cff91cb39fd668774ce979c0d75a80c525befdc30ac2556755b9a66fd3
SHA512

d4754286e013fd422357dbfdff3b08f998517379abb6f7993e3a3e0650518514ffddf09cc0b0b0c960dcb4b9fad13186e27a7d9561ecbf0ebc3ec89c85ce50c6

Score

10^/10

nanocore keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.244.30.139:2121

annapro55.ddns.net:2121

Mutex

912d38da-67db-490c-9c4c-4b7c843ca9fd

Attributes

activate_away_mode
true
backup_connection_host
annapro55.ddns.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-03-27T00:27:31.421536436Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
2121
default_group
NEW CLIENTS
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
912d38da-67db-490c-9c4c-4b7c843ca9fd
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
185.244.30.139
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

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/924-56-0x0000000000580000-0x00000000005C0000-memory.dmp	rezer0

Suspicious use of SetThreadContext 1 IoCs

Processes:

DHL_2121015942.exe

description pid process target process

PID 924 set thread context of 1884 924 DHL_2121015942.exe MSBuild.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2004 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

DHL_2121015942.exeMSBuild.exe

pid process

924 DHL_2121015942.exe
924 DHL_2121015942.exe
1884 MSBuild.exe
1884 MSBuild.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

MSBuild.exe

pid process

1884 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

DHL_2121015942.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 924 DHL_2121015942.exe
Token: SeDebugPrivilege 1884 MSBuild.exe

description	pid	process	target process
PID 924 set thread context of 1884	924	DHL_2121015942.exe	MSBuild.exe

pid	process
2004	schtasks.exe

pid	process
924	DHL_2121015942.exe
924	DHL_2121015942.exe
1884	MSBuild.exe
1884	MSBuild.exe

pid	process
1884	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	924	DHL_2121015942.exe
Token: SeDebugPrivilege	1884	MSBuild.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

DHL_2121015942.exe

description	pid	process	target process
PID 924 wrote to memory of 2004	924	DHL_2121015942.exe	schtasks.exe
PID 924 wrote to memory of 2004	924	DHL_2121015942.exe	schtasks.exe
PID 924 wrote to memory of 2004	924	DHL_2121015942.exe	schtasks.exe
PID 924 wrote to memory of 2004	924	DHL_2121015942.exe	schtasks.exe
PID 924 wrote to memory of 1968	924	DHL_2121015942.exe	MSBuild.exe
PID 924 wrote to memory of 1968	924	DHL_2121015942.exe	MSBuild.exe
PID 924 wrote to memory of 1968	924	DHL_2121015942.exe	MSBuild.exe
PID 924 wrote to memory of 1968	924	DHL_2121015942.exe	MSBuild.exe
PID 924 wrote to memory of 1688	924	DHL_2121015942.exe	MSBuild.exe
PID 924 wrote to memory of 1688	924	DHL_2121015942.exe	MSBuild.exe
PID 924 wrote to memory of 1688	924	DHL_2121015942.exe	MSBuild.exe
PID 924 wrote to memory of 1688	924	DHL_2121015942.exe	MSBuild.exe
PID 924 wrote to memory of 1884	924	DHL_2121015942.exe	MSBuild.exe
PID 924 wrote to memory of 1884	924	DHL_2121015942.exe	MSBuild.exe
PID 924 wrote to memory of 1884	924	DHL_2121015942.exe	MSBuild.exe
PID 924 wrote to memory of 1884	924	DHL_2121015942.exe	MSBuild.exe
PID 924 wrote to memory of 1884	924	DHL_2121015942.exe	MSBuild.exe
PID 924 wrote to memory of 1884	924	DHL_2121015942.exe	MSBuild.exe
PID 924 wrote to memory of 1884	924	DHL_2121015942.exe	MSBuild.exe
PID 924 wrote to memory of 1884	924	DHL_2121015942.exe	MSBuild.exe
PID 924 wrote to memory of 1884	924	DHL_2121015942.exe	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\DHL_2121015942.exe
"C:\Users\Admin\AppData\Local\Temp\DHL_2121015942.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:924
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vsUsOgWV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp935B.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2004
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  PID:1968
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  PID:1688
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:1884

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp935B.tmp

Filesize
1KB

MD5
970c9b7b02bf71838f9a633cf6c096a5

SHA1
01086735c9456977986e1d93c08e9e42cb46edda

SHA256
dfcb30f630c7759a9bd8dcac8fa493d8a05d7543ca1c93da24c5cdc1553c3984

SHA512
fbde6f13c81805d4349edc7365ecc893603e7c1b82b0f743ebc84135beb3a4982de97be9c72cba23af9e7e2bcae5aad9d49485e35807a80db9317112bec9a84d

Download Submit
memory/924-55-0x00000000001F0000-0x00000000001F8000-memory.dmp

Filesize
32KB

Download
memory/924-56-0x0000000000580000-0x00000000005C0000-memory.dmp

Filesize
256KB

Download
memory/924-57-0x00000000761F1000-0x00000000761F3000-memory.dmp

Filesize
8KB

Download
memory/924-54-0x0000000000FC0000-0x000000000101E000-memory.dmp

Filesize
376KB

Download
memory/1884-69-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1884-60-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1884-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1884-63-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1884-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1884-66-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1884-67-0x000000000041E792-mapping.dmp

Download
memory/1884-71-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1884-73-0x0000000000530000-0x000000000053A000-memory.dmp

Filesize
40KB

Download
memory/1884-74-0x0000000000540000-0x000000000055E000-memory.dmp

Filesize
120KB

Download
memory/1884-75-0x0000000000660000-0x000000000066A000-memory.dmp

Filesize
40KB

Download
memory/1884-76-0x0000000004C95000-0x0000000004CA6000-memory.dmp

Filesize
68KB

Download
memory/2004-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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