nanocore | 29bc7a7ec63bb64f38ebead4028fd2fd1cf46f9d9cc3ba85c7aca32182477abc

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
31/03/2024, 06:07

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General

Target
4f3411e3c3b5fa0af2d78198932a7714_JaffaCakes118.exe
Size 1.1MB
Sample240331-gvpzssff39
SHA256 29bc7a7ec63bb64f38ebead4028fd2fd1cf46f9d9cc3ba85c7aca32182477abc
MD5 4f3411e3c3b5fa0af2d78198932a7714
SHA1 725c315f423b4403dc8f55b4690fb5381bbe7882
SHA512 580bff8aa1accfd3d84315bc1026b0d0796fe240cd290bc530170160cd03f7f975dd92ab9e2eaae72598561ee2347a4bce2ac62e0af07c463ebd1458fc2a1d9d
SSDEEP 24576:rAOcZEhcPvfz53gPZfBjx1f/pU1hgova6TPY5I7nT1RMwazpM:tAifH/pUU96c5IzTXM72
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
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
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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	4f3411e3c3b5fa0af2d78198932a7714_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
2968	gdfnv.pif
632	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\AutoUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\66768162\\Update.vbs"	gdfnv.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Subsystem = "C:\\Program Files (x86)\\SMTP Subsystem\\smtpss.exe"	RegSvcs.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Chrome = "C:\\Users\\Admin\\AppData\\Roaming\\66768162\\gdfnv.pif C:\\Users\\Admin\\AppData\\Roaming\\66768162\\pjpta.fkm"	gdfnv.pif

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 2968 set thread context of 632	2968	gdfnv.pif	99

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\SMTP Subsystem\smtpss.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
3664	schtasks.exe
2688	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
632	RegSvcs.exe
632	RegSvcs.exe
632	RegSvcs.exe
632	RegSvcs.exe
632	RegSvcs.exe
632	RegSvcs.exe
632	RegSvcs.exe
632	RegSvcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
632	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	632	RegSvcs.exe
Token: SeDebugPrivilege	632	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3212 wrote to memory of 2968	3212	4f3411e3c3b5fa0af2d78198932a7714_JaffaCakes118.exe	95
PID 3212 wrote to memory of 2968	3212	4f3411e3c3b5fa0af2d78198932a7714_JaffaCakes118.exe	95
PID 3212 wrote to memory of 2968	3212	4f3411e3c3b5fa0af2d78198932a7714_JaffaCakes118.exe	95
PID 2968 wrote to memory of 632	2968	gdfnv.pif	99
PID 2968 wrote to memory of 632	2968	gdfnv.pif	99
PID 2968 wrote to memory of 632	2968	gdfnv.pif	99
PID 2968 wrote to memory of 632	2968	gdfnv.pif	99
PID 2968 wrote to memory of 632	2968	gdfnv.pif	99
PID 632 wrote to memory of 3664	632	RegSvcs.exe	102
PID 632 wrote to memory of 3664	632	RegSvcs.exe	102
PID 632 wrote to memory of 3664	632	RegSvcs.exe	102
PID 632 wrote to memory of 2688	632	RegSvcs.exe	104
PID 632 wrote to memory of 2688	632	RegSvcs.exe	104
PID 632 wrote to memory of 2688	632	RegSvcs.exe	104

C:\Users\Admin\AppData\Local\Temp\4f3411e3c3b5fa0af2d78198932a7714_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4f3411e3c3b5fa0af2d78198932a7714_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3212
- C:\Users\Admin\AppData\Roaming\66768162\gdfnv.pif
  "C:\Users\Admin\AppData\Roaming\66768162\gdfnv.pif" pjpta.fkm
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2968
- - 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:632
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "SMTP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3ED9.tmp"
      4⤵
      Creates scheduled task(s)
      PID:3664
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "SMTP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp439D.tmp"
      4⤵
      Creates scheduled task(s)
      PID:2688

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=1408 --field-trial-handle=2676,i,447940133669489189,1353734109898858672,262144 --variations-seed-version /prefetch:8
1⤵
PID:3864

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

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

Submit Download

tmp3ED9.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp3ED9.tmp
Size 1KB
SHA256 8d9642e1c3cd1e0b5d1763de2fb5e605ba593e5a918b93eec15acbc5dcc48fd4
MD5 95aceabc58acad5d73372b0966ee1b35
SHA1 2293b7ad4793cf574b1a5220e85f329b5601040a
SHA512 00760dfc9d8caf357f0cee5336e5448a4cca18e32cc63e1a69c16e34fe00ea29acd5b2cf278e86c6f9c3e66a1b176d27ed927361848212e6bf1fade7d3d06e74
MD5 SHA1 SHA512

Submit Download

tmp439D.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp439D.tmp
Size 1KB
SHA256 3d568a47a8944a47f4aed6982755ac7ff7dda469cc1c81c213ecaa5d89de1f83
MD5 0339b45ef206f4becc88be0d65e24b9e
SHA1 6503a1851f4ccd8c80a31f96bd7ae40d962c9fad
SHA512 c98f4513db34d50510dd986e0d812545c442bd5bef26932032b165759627fab4e00c95fe907ab3416a8a1042bfa77aa516c479f1ff7d1ec2f21ae66df8f72551
MD5 SHA1 SHA512

Submit Download

gdfnv.pif

Path C:\Users\Admin\AppData\Roaming\66768162\gdfnv.pif
Size 759KB
SHA256 c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40
MD5 8e699954f6b5d64683412cc560938507
SHA1 8ca6708b0f158eacce3ac28b23c23ed42c168c29
SHA512 13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02
SSDEEP 12288:aBzZm7d9AZAYJVB7ii/XAvKxRJBnwvogSJ4M4G4akiP5DGDt2:0cneJVBvXAvwRJdwvZ5akiP5DGR2
MD5 SHA1 SHA512 SSDEEP

Submit Download

ltwvs.cik

Path C:\Users\Admin\AppData\Roaming\66768162\ltwvs.cik
Size 420KB
SHA256 1b65bc4d4d3953c4911151f5ad1e3fc61531fc27c8bb801b3aa69e686d3effd6
MD5 88ab41e955b6e11dd4bc846ded12e7e3
SHA1 992671d952964936fac929485bad2af7a1ed0a20
SHA512 0b655266870b2074152ab9b37f199b6fa5cc75330ac6828a8ecf5ae28a05704daef3f065c0836ee17eaf4dd924debe121b7451073a733977a570249c741264c4
SSDEEP 6144:yN1+gsKsEUi8cx+Mk845k90sK741fIiDbWkxhv:bgsrF0x+Vsy4XDbWkxhv
MD5 SHA1 SHA512 SSDEEP

Submit Download

oblutduqv.msc

Path C:\Users\Admin\AppData\Roaming\66768162\oblutduqv.msc
Size 54KB
SHA256 d902cead5b9363309da664a66e15650df864fe6b582e48e9d9f64318ab48a58f
MD5 3e6efc81422d861c21c0e1a142d8f6f6
SHA1 c8f945a945b6f8c87e070bd417d5999f5b9cc99e
SHA512 c4d339f0d4b9c8e47e9f2b32f21dc4e8016c31db7014806cabe64a494290427f34f3d43113334d16f6f2bc31ee6799a1fa314efeaf7eaf44f65ace9855795b60
SSDEEP 1536:DESO3uk4FY6jYNp+zVaXwWSj/WmwOD7bQE1r0:u+k4ljYNp+zgXwWSyJWbQE1Y
MD5 SHA1 SHA512 SSDEEP

Submit Download

pjpta.fkm

Path C:\Users\Admin\AppData\Roaming\66768162\pjpta.fkm
Size 192.0MB
SHA256 ea8f321e46920cdf3bcf2fd8b56b3e7c16d8dacba69734d467bcca08c3177851
MD5 0ea8e86928bd9c2610ef08b348cbab93
SHA1 be9d3dbc35eea29382484ea37c84f4c6f0430f1d
SHA512 e769228ea3fcf8ae2a1ba29cde6ad1649edc9b362860cf489bfb9181b29874300cf820ec0a754e648ac4f5a335152cfb70fe8f2a2ad782023eb6c04cc847f4b7
SSDEEP 1572864:584AFDZEEp80+ppb9xIbfeC1TaG7U3MZGMoA9L9MoMbYTFC6DyJmHCN+KDH4LPF5:G
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/632-87-0x0000000005F60000-0x0000000005FFC000-memory.dmp

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memory/632-80-0x0000000001200000-0x00000000016A5000-memory.dmp

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memory/632-86-0x0000000005E20000-0x0000000005EB2000-memory.dmp

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memory/632-84-0x0000000001200000-0x000000000123A000-memory.dmp

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memory/632-88-0x0000000005DC0000-0x0000000005DD0000-memory.dmp

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memory/632-89-0x0000000005ED0000-0x0000000005EDA000-memory.dmp

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memory/632-83-0x0000000074900000-0x00000000750B0000-memory.dmp

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memory/632-85-0x00000000063D0000-0x0000000006974000-memory.dmp

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memory/632-97-0x0000000005F50000-0x0000000005F5A000-memory.dmp

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memory/632-99-0x00000000063A0000-0x00000000063BE000-memory.dmp

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memory/632-98-0x00000000061B0000-0x00000000061BC000-memory.dmp

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memory/632-100-0x0000000007050000-0x000000000705A000-memory.dmp

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memory/632-101-0x0000000074900000-0x00000000750B0000-memory.dmp

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memory/632-102-0x0000000005DC0000-0x0000000005DD0000-memory.dmp

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