Analysis
- max time kernel
126s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system - submitted
29/09/2024, 03:39
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
fdbab159997e6af6bf0776c48e62c51d_JaffaCakes118.exe
Resource
win7-20240903-en
13 signatures
150 seconds
General
- Target fdbab159997e6af6bf0776c48e62c51d_JaffaCakes118.exe
- Size 726KB
- Sample240929-d76ars1epd
- SHA256 892ac1aad60783b04a388d8cc154f605d9b7b8e3f3f1a7d207072f58f5389c42
- MD5 fdbab159997e6af6bf0776c48e62c51d
- SHA1 4cccfc9467fff9e5fda5ef41bebaef609b1ce889
- SHA512 fee3fb49d5885db08f0b32a551eaaeced72254f736a58e88ba3078a95184957f82036858b222993e1bc121b1733c032e98fb5f690ce02f277ce4c35bd3aaca0c
- SSDEEP 12288:q4EqDqf5/HQpEVzAdFFtr8N9ZrydvSgmryVvtF7ye0BMD2Ya/eD+Df:qBq+1x6Frr8N9ZetPLBye0Bk2Yavf
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
matiex
Credentials
-
Protocol
smtp
-
Host
ebop.website
-
Port
587
-
Username
-
Password
P@ssw0rdP@ssw0rd
-
Email to
Signatures
- Matiex Main payload 1 IoCs
resource yara_rule behavioral2/memory/4976-5-0x0000000000400000-0x0000000000472000-memory.dmp family_matiex - Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe - Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 36 freegeoip.app 19 checkip.dyndns.org 35 freegeoip.app - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4328 set thread context of 4976 4328 fdbab159997e6af6bf0776c48e62c51d_JaffaCakes118.exe 89 - System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language fdbab159997e6af6bf0776c48e62c51d_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4328 fdbab159997e6af6bf0776c48e62c51d_JaffaCakes118.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4976 RegAsm.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4328 wrote to memory of 4976 4328 fdbab159997e6af6bf0776c48e62c51d_JaffaCakes118.exe 89 PID 4328 wrote to memory of 4976 4328 fdbab159997e6af6bf0776c48e62c51d_JaffaCakes118.exe 89 PID 4328 wrote to memory of 4976 4328 fdbab159997e6af6bf0776c48e62c51d_JaffaCakes118.exe 89 PID 4328 wrote to memory of 4976 4328 fdbab159997e6af6bf0776c48e62c51d_JaffaCakes118.exe 89 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\fdbab159997e6af6bf0776c48e62c51d_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\fdbab159997e6af6bf0776c48e62c51d_JaffaCakes118.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4328 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4976
-
-
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=4152,i,3387628439405076340,17957358341235678872,262144 --variations-seed-version --mojo-platform-channel-handle=4180 /prefetch:81⤵PID:2324