Analysis
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max time kernel
118s -
max time network
128s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
27-12-2021 16:31
Static task
static1
Behavioral task
behavioral1
Sample
d92555bcd56ec92060ad31e69cdad855.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
d92555bcd56ec92060ad31e69cdad855.exe
Resource
win10-en-20211208
General
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Target
d92555bcd56ec92060ad31e69cdad855.exe
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Size
177KB
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MD5
d92555bcd56ec92060ad31e69cdad855
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SHA1
a9e23881ce5f209ec5b323d546a498ab64233249
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SHA256
b3252b9c8261e4b2d07f31c71dc1c3f0e2032a0fd5aa53ced919e5db104369e6
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SHA512
c3040d9f91f7976dec23f64a4bebaf11279149e8c765859e7469dae7e7406316516fc9d4d76d57639ee6ebb0d26720379c52c60f7adb3b7fe390f41d509c92aa
Malware Config
Extracted
Protocol: smtp- Host:
kerekesfoto.com - Port:
587 - Username:
[email protected] - Password:
5ae6LgwJ7rYj
Signatures
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Matiex Main Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/2720-115-0x00000000008B0000-0x00000000008E2000-memory.dmp family_matiex behavioral2/memory/2720-116-0x00000000008B0000-0x00000000008E2000-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.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
d92555bcd56ec92060ad31e69cdad855.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 d92555bcd56ec92060ad31e69cdad855.exe Key opened \REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 d92555bcd56ec92060ad31e69cdad855.exe Key opened \REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 d92555bcd56ec92060ad31e69cdad855.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.
Processes:
flow ioc 10 checkip.dyndns.org 20 freegeoip.app 21 freegeoip.app -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
d92555bcd56ec92060ad31e69cdad855.exepid process 2720 d92555bcd56ec92060ad31e69cdad855.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
d92555bcd56ec92060ad31e69cdad855.exedescription pid process Token: SeDebugPrivilege 2720 d92555bcd56ec92060ad31e69cdad855.exe -
outlook_office_path 1 IoCs
Processes:
d92555bcd56ec92060ad31e69cdad855.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 d92555bcd56ec92060ad31e69cdad855.exe -
outlook_win_path 1 IoCs
Processes:
d92555bcd56ec92060ad31e69cdad855.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 d92555bcd56ec92060ad31e69cdad855.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d92555bcd56ec92060ad31e69cdad855.exe"C:\Users\Admin\AppData\Local\Temp\d92555bcd56ec92060ad31e69cdad855.exe"1⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/2720-115-0x00000000008B0000-0x00000000008E2000-memory.dmpFilesize
200KB
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memory/2720-116-0x00000000008B0000-0x00000000008E2000-memory.dmpFilesize
200KB
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memory/2720-117-0x00000000051C0000-0x000000000525C000-memory.dmpFilesize
624KB
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memory/2720-118-0x0000000005760000-0x0000000005C5E000-memory.dmpFilesize
5.0MB
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memory/2720-119-0x0000000005130000-0x0000000005196000-memory.dmpFilesize
408KB
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memory/2720-120-0x0000000005260000-0x000000000575E000-memory.dmpFilesize
5.0MB
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memory/2720-121-0x00000000068C0000-0x0000000006A82000-memory.dmpFilesize
1.8MB
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memory/2720-122-0x0000000006A90000-0x0000000006B22000-memory.dmpFilesize
584KB
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memory/2720-123-0x00000000067E0000-0x00000000067EA000-memory.dmpFilesize
40KB