Analysis
-
max time kernel
143s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
12-06-2024 10:02
Static task
static1
Behavioral task
behavioral1
Sample
a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exe
Resource
win7-20240419-en
General
-
Target
a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exe
-
Size
924KB
-
MD5
a041b29365f66b16f667638f556d4ef2
-
SHA1
f5432b8ff90d9572cdde9513bcaa4d36f9405b0e
-
SHA256
771334bd01a06601b750820a20126a9626070981e6e28eb534df4d7c4b055daf
-
SHA512
3b79a83ff24b92681c23b848ff6d8e8394fa2f15848c376df6a39ce1b500e0d9303f18244e89cc6706b8abe952b460edf85dd970ed145f8914da57c18970ade0
-
SSDEEP
24576:YkXh6RxJAwuqu8y53pqUj5urWBw9+B6gbgIBNbOduHoHsGV4/xbvB7LHIPbgFZC8:tVqkud9L9AD3qoj
Malware Config
Extracted
nanocore
1.2.2.0
91.192.100.31:8456
909139fe-151a-4f93-9a99-ef8fd273e96d
-
activate_away_mode
true
- backup_connection_host
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2018-07-17T08:14:00.597274136Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
8456
-
default_group
Default
-
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
909139fe-151a-4f93-9a99-ef8fd273e96d
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
91.192.100.31
-
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
-
Processes:
RegAsm.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegAsm.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exedescription pid process target process PID 3724 set thread context of 2308 3724 a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exe RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exeRegAsm.exepid process 3724 a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exe 3724 a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exe 2308 RegAsm.exe 2308 RegAsm.exe 2308 RegAsm.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
RegAsm.exepid process 2308 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exeRegAsm.exedescription pid process Token: SeDebugPrivilege 3724 a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exe Token: SeDebugPrivilege 2308 RegAsm.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exedescription pid process target process PID 3724 wrote to memory of 2308 3724 a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exe RegAsm.exe PID 3724 wrote to memory of 2308 3724 a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exe RegAsm.exe PID 3724 wrote to memory of 2308 3724 a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exe RegAsm.exe PID 3724 wrote to memory of 2308 3724 a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exe RegAsm.exe PID 3724 wrote to memory of 2308 3724 a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exe RegAsm.exe PID 3724 wrote to memory of 2308 3724 a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exe RegAsm.exe PID 3724 wrote to memory of 2308 3724 a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exe RegAsm.exe PID 3724 wrote to memory of 2308 3724 a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exe RegAsm.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\a041b29365f66b16f667638f556d4ef2_JaffaCakes118.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3724 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2308
-
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 --field-trial-handle=4360,i,9746875443948590908,1444894342962555245,262144 --variations-seed-version --mojo-platform-channel-handle=3756 /prefetch:81⤵PID:4964
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/2308-6-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
-
memory/2308-8-0x0000000074350000-0x0000000074958000-memory.dmpFilesize
6.0MB
-
memory/3724-0-0x000000007481E000-0x000000007481F000-memory.dmpFilesize
4KB
-
memory/3724-1-0x00000000000D0000-0x00000000001A2000-memory.dmpFilesize
840KB
-
memory/3724-2-0x0000000004A60000-0x0000000004AA4000-memory.dmpFilesize
272KB
-
memory/3724-3-0x0000000002560000-0x000000000256C000-memory.dmpFilesize
48KB
-
memory/3724-4-0x0000000004AC0000-0x0000000004AF8000-memory.dmpFilesize
224KB
-
memory/3724-5-0x0000000004BA0000-0x0000000004C3C000-memory.dmpFilesize
624KB