Analysis
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max time kernel
104s -
max time network
115s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
19/01/2025, 11:45
Static task
static1
Behavioral task
behavioral1
Sample
99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe
Resource
win10v2004-20241007-en
General
-
Target
99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe
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Size
333KB
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MD5
cca95274bbaabcfee72efaccca85a58f
-
SHA1
b19c2fa5d7243ebcc3e782b4e3442f9984b3c5c5
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SHA256
99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd
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SHA512
db70626e44ad33fc7de55ca8a358cfadb6c2d47b5278e1f3e9ffd0bf96cdbb8912cc868b424e7a5565a53624c13caec0be6877325f338d01e7179d6acec7a652
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SSDEEP
6144:68YGTEOzKyTcxRGfTeyr48vouepdTk3xN7zHx2LHtgEbE+:686OsxRGLeyr48vYpdTkBRzR2LHtgEb7
Malware Config
Extracted
Protocol: smtp- Host:
webmail.netins.net - Port:
587 - Username:
[email protected] - Password:
Nskt3238
Signatures
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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 3 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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\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 4 checkip.dyndns.org 8 reallyfreegeoip.org 9 reallyfreegeoip.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2272 set thread context of 2608 2272 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 31 -
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 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2608 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2608 RegAsm.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2608 RegAsm.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2272 wrote to memory of 2608 2272 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 31 PID 2272 wrote to memory of 2608 2272 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 31 PID 2272 wrote to memory of 2608 2272 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 31 PID 2272 wrote to memory of 2608 2272 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 31 PID 2272 wrote to memory of 2608 2272 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 31 PID 2272 wrote to memory of 2608 2272 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 31 PID 2272 wrote to memory of 2608 2272 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 31 PID 2272 wrote to memory of 2608 2272 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 31 PID 2272 wrote to memory of 2608 2272 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 31 PID 2272 wrote to memory of 2608 2272 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 31 PID 2272 wrote to memory of 2608 2272 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 31 PID 2272 wrote to memory of 2608 2272 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 31 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe"C:\Users\Admin\AppData\Local\Temp\99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2272 -
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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2608
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b