Analysis
- max time kernel
154s - max time network
160s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
11/01/2024, 16:46
General
- Target eb7073f79738bc3871d8fdcdda2f6d07.exe
- Size 3.9MB
- Sample240111-t9ylpscce3
- SHA256 836702e8e9b5cc72d071836f7aece14f2f55103db492110feb3d1df399cb5a7e
Malware Config
Signatures
- Detect Socks5Systemz Payload 2 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 1 IoCs
- Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Runs net.exe
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\eb7073f79738bc3871d8fdcdda2f6d07.exe"C:\Users\Admin\AppData\Local\Temp\eb7073f79738bc3871d8fdcdda2f6d07.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-C92N1.tmp\is-AHJ3S.tmp"C:\Users\Admin\AppData\Local\Temp\is-C92N1.tmp\is-AHJ3S.tmp" /SL4 $5011A "C:\Users\Admin\AppData\Local\Temp\eb7073f79738bc3871d8fdcdda2f6d07.exe" 3871317 522242⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 11133⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 11134⤵
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C:\Users\Admin\AppData\Local\PCI Device Checker\pcidevicechecker.exe"C:\Users\Admin\AppData\Local\PCI Device Checker\pcidevicechecker.exe" -i3⤵
- Executes dropped EXE
-
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C:\Users\Admin\AppData\Local\PCI Device Checker\pcidevicechecker.exe"C:\Users\Admin\AppData\Local\PCI Device Checker\pcidevicechecker.exe" -s3⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
pcidevicechecker.exe
pcidevicechecker.exe
pcidevicechecker.exe
is-AHJ3S.tmp
_iscrypt.dll
memory/2684-126-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/2684-134-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/2684-173-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/2684-170-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/2684-167-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/2684-163-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/2684-121-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/2684-160-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/2684-123-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/2684-157-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/2684-154-0x0000000000900000-0x00000000009A2000-memory.dmp
memory/2684-153-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/2684-150-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/2684-130-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/2684-131-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/2684-145-0x0000000000900000-0x00000000009A2000-memory.dmp
memory/2684-137-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/2684-140-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/2684-143-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/3308-0-0x0000000000400000-0x0000000000413000-memory.dmp
memory/3308-124-0x0000000000400000-0x0000000000413000-memory.dmp
memory/3308-2-0x0000000000400000-0x0000000000413000-memory.dmp
memory/4548-114-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/4548-118-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/4548-119-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/4548-115-0x0000000000400000-0x00000000005F6000-memory.dmp
memory/4928-127-0x0000000002350000-0x0000000002351000-memory.dmp
memory/4928-125-0x0000000000400000-0x00000000004CF000-memory.dmp
memory/4928-9-0x0000000002350000-0x0000000002351000-memory.dmp