Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
28/04/2024, 09:26
General
- Target 4219e5a081c62567d3fb9e490c2a7a3e.exe
- Size 456KB
- Sample240428-ld7kqsce98
- SHA256 7d7cc308f2cd107a42ea8c32e8c06d6b684417a1fa8951072a707a1838a2d3f5
Malware Config
Extracted
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stealc
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http://185.172.128.76
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url_path
/8681490a59ad0e34.php
Signatures
- SectopRAT
SectopRAT is a remote access trojan first seen in November 2019.
- SectopRAT payload 1 IoCs
- Stealc
Stealc is an infostealer written in C++.
- Downloads MZ/PE file
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of SetThreadContext 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 13 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 3 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\4219e5a081c62567d3fb9e490c2a7a3e.exe"C:\Users\Admin\AppData\Local\Temp\4219e5a081c62567d3fb9e490c2a7a3e.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\u3vg.0.exe"C:\Users\Admin\AppData\Local\Temp\u3vg.0.exe"2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
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C:\Users\Admin\AppData\Local\Temp\u3vg.2\run.exe"C:\Users\Admin\AppData\Local\Temp\u3vg.2\run.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\SysWOW64\cmd.exe3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5020 -s 12322⤵
- Program crash
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5020 -ip 50201⤵
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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 --no-appcompat-clear --mojo-platform-channel-handle=3488 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:81⤵
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --mojo-platform-channel-handle=4012 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:81⤵
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=2424 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:31⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
SCT Auditing Pending Reports
Sdch Dictionaries
35e019bb
tmp2670.tmp
tmpDE3.tmp
u3vg.0.exe
u3vg.1.zip
UIxMarketPlugin.dll
bunch.dat
relay.dll
run.exe
whale.dbf
memory/1764-112-0x0000000072B40000-0x0000000072CBB000-memory.dmp
memory/1764-102-0x0000000072B40000-0x0000000072CBB000-memory.dmp
memory/1764-103-0x00007FFFF6CB0000-0x00007FFFF6EA5000-memory.dmp
memory/3540-134-0x00000000061A0000-0x00000000066CC000-memory.dmp
memory/3540-127-0x0000000004F70000-0x0000000005002000-memory.dmp
memory/3540-162-0x00000000078C0000-0x00000000078CA000-memory.dmp
memory/3540-136-0x0000000005D80000-0x0000000005DE6000-memory.dmp
memory/3540-135-0x0000000005C90000-0x0000000005CAE000-memory.dmp
memory/3540-132-0x0000000005020000-0x000000000502A000-memory.dmp
memory/3540-131-0x0000000005150000-0x00000000051A0000-memory.dmp
memory/3540-130-0x00000000050D0000-0x0000000005146000-memory.dmp
memory/3540-129-0x00000000052A0000-0x0000000005462000-memory.dmp
memory/3540-128-0x00000000055C0000-0x0000000005B64000-memory.dmp
memory/3540-122-0x0000000071610000-0x0000000072864000-memory.dmp
memory/3540-126-0x0000000000900000-0x00000000009C6000-memory.dmp
memory/4856-120-0x0000000072B40000-0x0000000072CBB000-memory.dmp
memory/4856-115-0x00007FFFF6CB0000-0x00007FFFF6EA5000-memory.dmp
memory/4868-13-0x0000000001B50000-0x0000000001C50000-memory.dmp
memory/4868-123-0x0000000000400000-0x0000000001A19000-memory.dmp
memory/4868-174-0x0000000000400000-0x0000000001A19000-memory.dmp
memory/4868-15-0x0000000000400000-0x0000000001A19000-memory.dmp
memory/4868-14-0x0000000001AF0000-0x0000000001B17000-memory.dmp
memory/4868-171-0x0000000000400000-0x0000000001A19000-memory.dmp
memory/4868-118-0x0000000001B50000-0x0000000001C50000-memory.dmp
memory/4868-163-0x0000000000400000-0x0000000001A19000-memory.dmp
memory/4868-111-0x0000000000400000-0x0000000001A19000-memory.dmp
memory/5020-1-0x0000000001C90000-0x0000000001D90000-memory.dmp
memory/5020-3-0x0000000000400000-0x0000000001A3D000-memory.dmp
memory/5020-109-0x0000000000400000-0x0000000001A3D000-memory.dmp
memory/5020-2-0x0000000001BD0000-0x0000000001C3D000-memory.dmp
memory/5020-87-0x0000000000400000-0x0000000001A3D000-memory.dmp
memory/5020-110-0x0000000001BD0000-0x0000000001C3D000-memory.dmp