nanocore | e79ef9ac540330942b1185f71c77d95e6582ea77c4eedc0740a19afeebb59323

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05/04/2024, 01:21

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General

Target
c6f63f704ac312dd8ae245f27ca9e4cc_JaffaCakes118.exe
Size 1.1MB
Sample240405-bq7fdsgh63
SHA256 e79ef9ac540330942b1185f71c77d95e6582ea77c4eedc0740a19afeebb59323
MD5 c6f63f704ac312dd8ae245f27ca9e4cc
SHA1 b8354186bf0150c8c611a76209d0ce4b2c3bfc8d
SHA512 ac605095a087da90a5b375ce0723482d6704032561d6a2dd04a75e1bd6a4881d5a08244cd3b3b97a3fe433a9d27bed2a723f811bb3fb9a5dfc2b0cddfbd89a3b
SSDEEP 24576:rAOcZEhuwsTCrdOBA1sMQZPbple4a6TPY5I7nT1RMwazo:topmrv1IZjbm6c5IzTXM7s
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

strongodss.ddns.net:48562
185.19.85.175:48562

Mutex

ba2baad0-dd3f-4844-a1e3-4d042f9ae8b6

Attributes

activate_away_mode
false
backup_connection_host
185.19.85.175
backup_dns_server
buffer_size
65538
build_time
2021-04-20T00:12:13.961451136Z
bypass_user_account_control
false
bypass_user_account_control_data
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
48562
default_group
HOBBIT
enable_debug_mode
true
gc_threshold
1.0485772e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.0485772e+07
mutex
ba2baad0-dd3f-4844-a1e3-4d042f9ae8b6
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
strongodss.ddns.net
primary_dns_server
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
false
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8009

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-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	c6f63f704ac312dd8ae245f27ca9e4cc_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1608	kumuchr.pif
232	RegSvcs.exe

Adds Run key to start application 2 TTPs 3 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\Chrome = "c:\\76012661\\kumuchr.pif c:\\76012661\\rfqmeq.dwp"	kumuchr.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\AutoUpdate = "c:\\76012661\\Update.vbs"	kumuchr.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DDP Monitor = "C:\\Program Files (x86)\\DDP Monitor\\ddpmon.exe"	RegSvcs.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	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1608 set thread context of 232	1608	kumuchr.pif	100

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DDP Monitor\ddpmon.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\DDP Monitor\ddpmon.exe	RegSvcs.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

pid	Process
4420	schtasks.exe
3972	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
232	RegSvcs.exe
232	RegSvcs.exe
232	RegSvcs.exe
232	RegSvcs.exe
232	RegSvcs.exe
232	RegSvcs.exe
232	RegSvcs.exe
232	RegSvcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
232	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	232	RegSvcs.exe
Token: SeDebugPrivilege	232	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 5068 wrote to memory of 1608	5068	c6f63f704ac312dd8ae245f27ca9e4cc_JaffaCakes118.exe	95
PID 5068 wrote to memory of 1608	5068	c6f63f704ac312dd8ae245f27ca9e4cc_JaffaCakes118.exe	95
PID 5068 wrote to memory of 1608	5068	c6f63f704ac312dd8ae245f27ca9e4cc_JaffaCakes118.exe	95
PID 1608 wrote to memory of 232	1608	kumuchr.pif	100
PID 1608 wrote to memory of 232	1608	kumuchr.pif	100
PID 1608 wrote to memory of 232	1608	kumuchr.pif	100
PID 1608 wrote to memory of 232	1608	kumuchr.pif	100
PID 1608 wrote to memory of 232	1608	kumuchr.pif	100
PID 232 wrote to memory of 4420	232	RegSvcs.exe	103
PID 232 wrote to memory of 4420	232	RegSvcs.exe	103
PID 232 wrote to memory of 4420	232	RegSvcs.exe	103
PID 232 wrote to memory of 3972	232	RegSvcs.exe	105
PID 232 wrote to memory of 3972	232	RegSvcs.exe	105
PID 232 wrote to memory of 3972	232	RegSvcs.exe	105

C:\Users\Admin\AppData\Local\Temp\c6f63f704ac312dd8ae245f27ca9e4cc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c6f63f704ac312dd8ae245f27ca9e4cc_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5068
- C:\76012661\kumuchr.pif
  "C:\76012661\kumuchr.pif" rfqmeq.dwp
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1608
- - C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
    3⤵
    - Executes dropped EXE
    - 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:232
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "DDP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8D5B.tmp"
      4⤵
      Creates scheduled task(s)
      PID:4420
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "DDP Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp92FA.tmp"
      4⤵
      Creates scheduled task(s)
      PID:3972

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 --no-appcompat-clear --mojo-platform-channel-handle=4136 --field-trial-handle=2496,i,15897292497548307209,13920214570023230813,262144 --variations-seed-version /prefetch:8
1⤵
PID:3484

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

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Downloads

kumuchr.pif

Path C:\76012661\kumuchr.pif
Size 759KB
SHA256 c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40
MD5 8e699954f6b5d64683412cc560938507
SHA1 8ca6708b0f158eacce3ac28b23c23ed42c168c29
SHA512 13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02
SSDEEP 12288:aBzZm7d9AZAYJVB7ii/XAvKxRJBnwvogSJ4M4G4akiP5DGDt2:0cneJVBvXAvwRJdwvZ5akiP5DGR2
MD5 SHA1 SHA512 SSDEEP

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qasrk.vap

Path C:\76012661\qasrk.vap
Size 420KB
SHA256 ff3f29a2920af715a4a8e6d0c46332254f78ae69d1e89337415a991e68aaa5a8
MD5 98c33e276b6b646e1eee85c6c16031c4
SHA1 76704489cbf4831e40c685f4090801ac2ffe902a
SHA512 77b49f806b58bf9a19057d5af3cd077ba32dc0432359123fcae50cb163d8871e593f6d03755401484a2a2d299982405bd5bd986c45f95ee3830b16345c606542
SSDEEP 6144:krIgkttetk+ZbUCPU1bAsXNJsoH/JsJtgaUhNjAGjub:krI8dIbAkJXJsPgaYc
MD5 SHA1 SHA512 SSDEEP

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rfqmeq.dwp

Path C:\76012661\rfqmeq.dwp
Size 228.1MB
SHA256 7816ff300a4388347bcfb11de86033c2799277bee4e67dda3ca96a917d40cb07
MD5 b9c40bda4b3ec23b0de158e2039d81a4
SHA1 7e8f9cdd9d208460e64c28c8e71c73f4f1f8ab62
SHA512 3c06ac59f5c9ebf7b191c23e5df79f21140e6e02e61adf8a2117e6cb81d0586beb198f7e5a407dd4b458cdc23c1588ddc062f9300afc79a2b8bdc4d1587302be
SSDEEP 49152:WSjSvSnS+SwSiSbSbSSSDSLSRSySyS4SGSqS/S4ScSRSFSOS9StSpS4SLSESTSiA:x
MD5 SHA1 SHA512 SSDEEP

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vhtpmtjvuw.icm

Path C:\76012661\vhtpmtjvuw.icm
Size 57KB
SHA256 cad91c10c2000f35c24f33afc037d6c5a5df32b422413c6b8173e4b9ae0daa00
MD5 05f5b4fc4e23a9b7313a83d5f9d10b33
SHA1 fc52296849073f13c61101b193f6bb9846875707
SHA512 04c772d1e72dd6482e749225dee31dbf177092974adeb5acef850019818455d9543869d4327567a8e9580451dd7d15176d2cca89c3d11e74793d3523850844d6
SSDEEP 1536:wg9EWDPreIyYKMPt/Te48kXqXuBRqiWf/xjOhmDa:wWEWDKVAP1et9uBRg/xChmG
MD5 SHA1 SHA512 SSDEEP

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RegSvcs.exe

Path C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
Size 44KB
SHA256 2c1eeb7097023c784c2bd040a2005a5070ed6f3a4abf13929377a9e39fab1390
MD5 9d352bc46709f0cb5ec974633a0c3c94
SHA1 1969771b2f022f9a86d77ac4d4d239becdf08d07
SHA512 13c714244ec56beeb202279e4109d59c2a43c3cf29f90a374a751c04fd472b45228ca5a0178f41109ed863dbd34e0879e4a21f5e38ae3d89559c57e6be990a9b
SSDEEP 768:4BbSoy+SdIBf0k2dsjYg6Iq8S1GYqWH8BR:noOIBf0ddsjY/ZGyc7
MD5 SHA1 SHA512 SSDEEP

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tmp8D5B.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp8D5B.tmp
Size 1KB
SHA256 8d9642e1c3cd1e0b5d1763de2fb5e605ba593e5a918b93eec15acbc5dcc48fd4
MD5 95aceabc58acad5d73372b0966ee1b35
SHA1 2293b7ad4793cf574b1a5220e85f329b5601040a
SHA512 00760dfc9d8caf357f0cee5336e5448a4cca18e32cc63e1a69c16e34fe00ea29acd5b2cf278e86c6f9c3e66a1b176d27ed927361848212e6bf1fade7d3d06e74
MD5 SHA1 SHA512

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tmp92FA.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp92FA.tmp
Size 1KB
SHA256 6c96706f92685f44eebb1b28814c3a2b3a62d364ff28ecb6e94438dd73d3be89
MD5 2db700bd58966294a18b181535d57b7c
SHA1 3693d2a9da766af84c8bf0a7e53071f356ea5ac5
SHA512 debaede4771770ad2964f6806b5d08c9ec7af93fedb0f96b9f8054805ce9bbe8b30977a6a0d0fe7333da7003601fa11a25ae97a79f24d0d5f171e91513a55125
MD5 SHA1 SHA512

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memory/232-61-0x0000000005EC0000-0x0000000005F5C000-memory.dmp

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memory/232-54-0x0000000000F00000-0x0000000001608000-memory.dmp

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memory/232-60-0x0000000005D60000-0x0000000005DF2000-memory.dmp

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memory/232-59-0x00000000063D0000-0x0000000006974000-memory.dmp

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memory/232-62-0x00000000060C0000-0x00000000060D0000-memory.dmp

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memory/232-63-0x0000000005D50000-0x0000000005D5A000-memory.dmp

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memory/232-57-0x0000000000F00000-0x0000000000F3A000-memory.dmp

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memory/232-58-0x0000000074750000-0x0000000074F00000-memory.dmp

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memory/232-71-0x0000000006020000-0x000000000602A000-memory.dmp

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memory/232-72-0x0000000006030000-0x000000000603C000-memory.dmp

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memory/232-73-0x0000000006090000-0x00000000060AE000-memory.dmp

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memory/232-74-0x0000000006E90000-0x0000000006E9A000-memory.dmp

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memory/232-75-0x0000000074750000-0x0000000074F00000-memory.dmp

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memory/232-76-0x00000000060C0000-0x00000000060D0000-memory.dmp

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