Analysis
- max time kernel
149s - max time network
112s - platform
windows10_x64 - resource
win10v200722 - submitted
12/10/2020, 02:03
General
- Target H2504-C664-C665 0829_xlsx.exe
- Size 763KB
- Sample201012-dbw4wmm4c6
- SHA256 b3c33339d1d526eebdd71c8ce0d1f3d0a12be1d5325e7678924e2bfc29a84181
Malware Config
Signatures
- 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 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Suspicious use of SetThreadContext 1 IoCs
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\H2504-C664-C665 0829_xlsx.exe"C:\Users\Admin\AppData\Local\Temp\H2504-C664-C665 0829_xlsx.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zLzFwJsbPS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp21A2.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\H2504-C664-C665 0829_xlsx.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3440-23-0x0000000005C00000-0x0000000005C01000-memory.dmp
memory/3440-22-0x0000000005050000-0x0000000005051000-memory.dmp
memory/3440-17-0x0000000074000000-0x00000000746EE000-memory.dmp
memory/3440-14-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3888-5-0x00000000050E0000-0x00000000050E1000-memory.dmp
memory/3888-10-0x0000000007AF0000-0x0000000007B6C000-memory.dmp
memory/3888-11-0x000000000B2B0000-0x000000000B324000-memory.dmp
memory/3888-9-0x0000000005D80000-0x0000000005D84000-memory.dmp
memory/3888-8-0x0000000005E20000-0x0000000005E21000-memory.dmp
memory/3888-7-0x0000000005400000-0x0000000005401000-memory.dmp
memory/3888-6-0x0000000005A30000-0x0000000005A31000-memory.dmp
memory/3888-0-0x0000000074000000-0x00000000746EE000-memory.dmp
memory/3888-4-0x0000000004F70000-0x0000000004F71000-memory.dmp
memory/3888-3-0x0000000005530000-0x0000000005531000-memory.dmp
memory/3888-1-0x0000000000530000-0x0000000000531000-memory.dmp