nanocore | c8b230237028e5c7ed93e21458237528890732bf60167e37e835d4db4e79f9e4

General

Target

2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
Size

906KB
MD5

2bc77f66378cf099b87fcfdc26e80ec6
SHA1

e48de2116d9c931aa2051ad81e57af6ec5cfedde
SHA256

c8b230237028e5c7ed93e21458237528890732bf60167e37e835d4db4e79f9e4
SHA512

e298d23b5bcdb854d942eca1273e8ba1f1d97860b346b0ad5d8b488a405d7de87c6a5da4fefbb00def6bcc7c2146ad3b50327c957124b180f3efe3972f7f7958
SSDEEP

24576:kIQrUm0YeCJiiNxg+5OGEK3QP1p2GqiUPb:OULXCkeA+3QGO4

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

new2021.myq-see.com:2021

185.140.53.138:2021

Mutex

4e93981f-5ccc-40a6-ab4d-8d13e34d915c

Attributes

activate_away_mode
true
backup_connection_host
185.140.53.138
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-10-16T08:01:24.315081336Z
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
2021
default_group
2021
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
4e93981f-5ccc-40a6-ab4d-8d13e34d915c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
new2021.myq-see.com
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

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-1-5-21-661257284-3186977026-4220467887-1000\Control Panel\International\Geo\Nation	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.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\SMTP Subsystem = "C:\\Program Files (x86)\\SMTP Subsystem\\smtpss.exe"	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.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	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4864 set thread context of 1900	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	101

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
File opened for modification	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
1140	schtasks.exe
4616	schtasks.exe
916	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
1900	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
1900	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
1900	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1900	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
Token: SeDebugPrivilege	1900	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4864 wrote to memory of 4616	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	96
PID 4864 wrote to memory of 4616	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	96
PID 4864 wrote to memory of 4616	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	96
PID 4864 wrote to memory of 2360	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	98
PID 4864 wrote to memory of 2360	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	98
PID 4864 wrote to memory of 2360	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	98
PID 4864 wrote to memory of 412	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	99
PID 4864 wrote to memory of 412	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	99
PID 4864 wrote to memory of 412	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	99
PID 4864 wrote to memory of 2376	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	100
PID 4864 wrote to memory of 2376	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	100
PID 4864 wrote to memory of 2376	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	100
PID 4864 wrote to memory of 1900	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	101
PID 4864 wrote to memory of 1900	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	101
PID 4864 wrote to memory of 1900	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	101
PID 4864 wrote to memory of 1900	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	101
PID 4864 wrote to memory of 1900	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	101
PID 4864 wrote to memory of 1900	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	101
PID 4864 wrote to memory of 1900	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	101
PID 4864 wrote to memory of 1900	4864	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	101
PID 1900 wrote to memory of 916	1900	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	102
PID 1900 wrote to memory of 916	1900	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	102
PID 1900 wrote to memory of 916	1900	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	102
PID 1900 wrote to memory of 1140	1900	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	104
PID 1900 wrote to memory of 1140	1900	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	104
PID 1900 wrote to memory of 1140	1900	2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe	104

C:\Users\Admin\AppData\Local\Temp\2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4864
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hCwBlullNXkFm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEF2D.tmp"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4616
- C:\Users\Admin\AppData\Local\Temp\2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
  "{path}"
  2⤵
  PID:2360
- C:\Users\Admin\AppData\Local\Temp\2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
  "{path}"
  2⤵
  PID:412
- C:\Users\Admin\AppData\Local\Temp\2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe
  "{path}"
  2⤵
  PID:2376
- C:\Users\Admin\AppData\Local\Temp\2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.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:1900
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SMTP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF5B5.tmp"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:916
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SMTP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF691.tmp"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1140

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4432,i,4226873509039249198,15952596839998010243,262144 --variations-seed-version --mojo-platform-channel-handle=4584 /prefetch:8
1⤵
PID:1104

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\2bc77f66378cf099b87fcfdc26e80ec6_JaffaCakes118.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpEF2D.tmp

Filesize
1KB

MD5
d81afd39df5fa65dfa0a34b8c50c1fe8

SHA1
e2b18b94c249040cb8213d3925278413e2d6c081

SHA256
de4a399493df85317225085b02c21bd5c33f589e4036eb3aa69cf673e6c4b2c0

SHA512
3d299c7b1b5252baf963422cdc314d862d207681ee8886cd9f4f1dcd427c5a96dd5e27b587036e9f9eed89bb95b09e03f4497aa90586eb08a45b498846422afb

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF5B5.tmp

Filesize
1KB

MD5
fbc65d39ca3504f5e3038eab4619a55e

SHA1
5fc3077235483cafe9dd293aea7238bf241d5288

SHA256
80dcb492a804034b7159e538dfc6e984af84ded8725c5e585ae688346f5e45c1

SHA512
35b476713f15240d58fd9551c3c410ffbd0672e34e668bb538a2db84c89385d55086c3ab728220ab00ac542ae2e84aebdb11bb04b6b136b1f7a8fc76873039d3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF691.tmp

Filesize
1KB

MD5
0339b45ef206f4becc88be0d65e24b9e

SHA1
6503a1851f4ccd8c80a31f96bd7ae40d962c9fad

SHA256
3d568a47a8944a47f4aed6982755ac7ff7dda469cc1c81c213ecaa5d89de1f83

SHA512
c98f4513db34d50510dd986e0d812545c442bd5bef26932032b165759627fab4e00c95fe907ab3416a8a1042bfa77aa516c479f1ff7d1ec2f21ae66df8f72551

Download Submit
memory/1900-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1900-18-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/1900-31-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/1900-30-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/1900-29-0x0000000006620000-0x000000000662A000-memory.dmp

Filesize
40KB

Download
memory/1900-28-0x00000000064F0000-0x000000000650E000-memory.dmp

Filesize
120KB

Download
memory/1900-27-0x00000000059F0000-0x00000000059FA000-memory.dmp

Filesize
40KB

Download
memory/1900-19-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/4864-3-0x00000000052F0000-0x0000000005382000-memory.dmp

Filesize
584KB

Download
memory/4864-5-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/4864-17-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/4864-0-0x0000000074F9E000-0x0000000074F9F000-memory.dmp

Filesize
4KB

Download
memory/4864-4-0x0000000005230000-0x000000000523A000-memory.dmp

Filesize
40KB

Download
memory/4864-2-0x00000000058A0000-0x0000000005E44000-memory.dmp

Filesize
5.6MB

Download
memory/4864-1-0x0000000000790000-0x0000000000878000-memory.dmp

Filesize
928KB

Download
memory/4864-10-0x0000000006A70000-0x0000000006AF4000-memory.dmp

Filesize
528KB

Download
memory/4864-9-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/4864-8-0x0000000074F9E000-0x0000000074F9F000-memory.dmp

Filesize
4KB

Download
memory/4864-7-0x00000000069D0000-0x0000000006A6C000-memory.dmp

Filesize
624KB

Download
memory/4864-6-0x00000000053C0000-0x00000000053CA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads