Analysis
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max time kernel
145s -
max time network
143s -
platform
windows11-21h2_x64 -
resource
win11-20241007-en -
resource tags
arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system -
submitted
11-10-2024 09:15
Static task
static1
Behavioral task
behavioral1
Sample
sigma.exe
Resource
win10v2004-20241007-en
General
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Target
sigma.exe
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Size
23.8MB
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MD5
7b3b8c7ad73e483139127a259eedb39b
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SHA1
8c8951d762a0cd2cdb6cc7ba3112d069fe95a4ec
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SHA256
8f9b5cb5362dcbc71f288d310a67b65957a18e83c660078f6d32056a6077c7ed
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SHA512
a4d1f60e6bced99b36f5057748ea1515eeccc7d4b1e64930063748c280c8f392962b079ab321e53cf8a366f1dd48ec79f28149a312e6d577f3cc3119d24c4056
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SSDEEP
393216:V52BpDr3fdoc+5my5krGTONk+SBw7MSM5lMVFoga:b2Bp/7+0yBuk/BwJMzmFoga
Malware Config
Extracted
skuld
https://discord.com/api/webhooks/1294219914600513648/1hMj8NibsG6kkmCebWQXD2dsOS3COgpf78DC2CqwIi8Ve2EgBTg8fRzgTY1uxq8ArsSQ
Signatures
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Executes dropped EXE 1 IoCs
Processes:
sg.exepid process 3480 sg.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
sigma.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sigma.exe -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
msedge.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS msedge.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer msedge.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName msedge.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
msedge.exemsedge.exeidentity_helper.exemsedge.exemsedge.exepid process 4036 msedge.exe 4036 msedge.exe 4376 msedge.exe 4376 msedge.exe 4728 identity_helper.exe 4728 identity_helper.exe 1760 msedge.exe 1760 msedge.exe 4040 msedge.exe 4040 msedge.exe 4040 msedge.exe 4040 msedge.exe -
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs
Processes:
msedge.exepid process 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
sg.exedescription pid process Token: SeDebugPrivilege 3480 sg.exe -
Suspicious use of FindShellTrayWindow 25 IoCs
Processes:
msedge.exepid process 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe -
Suspicious use of SendNotifyMessage 12 IoCs
Processes:
msedge.exepid process 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe 4376 msedge.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
sigma.exesg.exemsedge.exedescription pid process target process PID 3996 wrote to memory of 3480 3996 sigma.exe sg.exe PID 3996 wrote to memory of 3480 3996 sigma.exe sg.exe PID 3480 wrote to memory of 1344 3480 sg.exe attrib.exe PID 3480 wrote to memory of 1344 3480 sg.exe attrib.exe PID 4376 wrote to memory of 1848 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 1848 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 3976 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4036 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4036 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4956 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4956 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4956 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4956 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4956 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4956 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4956 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4956 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4956 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4956 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4956 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4956 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4956 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4956 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4956 4376 msedge.exe msedge.exe PID 4376 wrote to memory of 4956 4376 msedge.exe msedge.exe -
Views/modifies file attributes 1 TTPs 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\sigma.exe"C:\Users\Admin\AppData\Local\Temp\sigma.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3996 -
C:\Users\Admin\AppData\Local\Temp\sigma_d0bc55da-d58e-455b-ac11-95c3c63a102a\sg.exe"C:\Users\Admin\AppData\Local\Temp\sigma_d0bc55da-d58e-455b-ac11-95c3c63a102a\sg.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3480 -
C:\Windows\system32\attrib.exeattrib +h +s C:\Users\Admin\AppData\Local\Temp\sigma_d0bc55da-d58e-455b-ac11-95c3c63a102a\sg.exe3⤵
- Views/modifies file attributes
PID:1344
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\Desktop\CompletePop.svg1⤵
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4376 -
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=90.0.818.66 --initial-client-data=0x100,0x104,0x108,0xdc,0x10c,0x7ffb74333cb8,0x7ffb74333cc8,0x7ffb74333cd82⤵PID:1848
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1916,15909900823604923249,3192347131803373470,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1932 /prefetch:22⤵PID:3976
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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 --field-trial-handle=1916,15909900823604923249,3192347131803373470,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2296 /prefetch:32⤵
- Suspicious behavior: EnumeratesProcesses
PID:4036
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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 --field-trial-handle=1916,15909900823604923249,3192347131803373470,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2548 /prefetch:82⤵PID:4956
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1916,15909900823604923249,3192347131803373470,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3160 /prefetch:12⤵PID:5092
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1916,15909900823604923249,3192347131803373470,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3220 /prefetch:12⤵PID:2368
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C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe"C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1916,15909900823604923249,3192347131803373470,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5148 /prefetch:82⤵
- Suspicious behavior: EnumeratesProcesses
PID:4728
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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=chrome.mojom.UtilWin --field-trial-handle=1916,15909900823604923249,3192347131803373470,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5192 /prefetch:82⤵
- Suspicious behavior: EnumeratesProcesses
PID:1760
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1916,15909900823604923249,3192347131803373470,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5272 /prefetch:12⤵PID:4104
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1916,15909900823604923249,3192347131803373470,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=1940 /prefetch:12⤵PID:1032
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1916,15909900823604923249,3192347131803373470,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5412 /prefetch:12⤵PID:4680
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1916,15909900823604923249,3192347131803373470,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4844 /prefetch:12⤵PID:1276
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1916,15909900823604923249,3192347131803373470,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.22000.1 --gpu-preferences=SAAAAAAAAADoAAAwAAAAAAAAAAAAAAAAAABgAAAQAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=4724 /prefetch:22⤵
- Suspicious behavior: EnumeratesProcesses
PID:4040
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:1396
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:1044
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
152B
MD51fc959921446fa3ab5813f75ca4d0235
SHA10aeef3ba7ba2aa1f725fca09432d384b06995e2a
SHA2561b1e89d3b2f3da84cc8494d07cf0babc472c426ccb1c4ae13398243360c9d02c
SHA512899d1e1b0feece25ac97527daddcaaeb069cb428532477849eba43a627502c590261f2c26fef31e4e20efd3d7eb0815336a784c4d2888e05afcf5477af872b06
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Filesize
152B
MD5e9a2c784e6d797d91d4b8612e14d51bd
SHA125e2b07c396ee82e4404af09424f747fc05f04c2
SHA25618ddbb93c981d8006071f9d26924ce3357cad212cbb65f48812d4a474c197ce6
SHA512fc35688ae3cd448ed6b2069d39ce1219612c54f5bb0dd7b707c9e6f39450fe9fb1338cf5bd0b82a45207fac2fbab1e0eae77e5c9e6488371390eab45f76a5df1
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Filesize
5KB
MD559caf9dfa891c989d3ecf6644792bc94
SHA11dd23bccec2f24b9b707107b51ac1a8e3102e3d2
SHA256cd865b2cb8bd5f710ef35e648f1c691b9347429975f217057c0110ac0d2ccb5a
SHA512273019748ff2406689262af89038a6bb9117eb9795e3461a8ad5f86335fedb968e80f7f4b1567e737f59480054029e8cd44ebad17e178d5776df046abf50a80a
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Filesize
6KB
MD55857b4fd8aac6f37e814c9084e8310c7
SHA1e4bea3fa5b6b6f1cd25202df7840017d13b1c630
SHA25624be4d6e5fa86e3345bb4360f63057a24785aed5ec00d35cc495e76d4bc3a45a
SHA512521fd424154e1ab5d2cf47dbecc2bf138bd5ee5ececacc1f37a6c82792202d194033cebfb5d83b9caaf9d9e5f1fe0d11ae7114886958580651297c54382293d3
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Filesize
16B
MD546295cac801e5d4857d09837238a6394
SHA144e0fa1b517dbf802b18faf0785eeea6ac51594b
SHA2560f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
SHA5128969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23
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Filesize
16B
MD5206702161f94c5cd39fadd03f4014d98
SHA1bd8bfc144fb5326d21bd1531523d9fb50e1b600a
SHA2561005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167
SHA5120af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145
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Filesize
10KB
MD53b690c39ebe228421173303e924bd5e6
SHA108d5316cda35b9b114a810eb6579f18573504e7b
SHA256c904673847a1d610c893cfe152f36ee62d0507408578d1531ad14aa4a0cf621b
SHA512b6aed0320282d3d82f3ca60e34f6f5d9a4ef61f3950e1dd26fe6db84adc59e4894c9d5f19088832c1d39e63475c1f7d9997d70ff21d4f0af3b0f2cb5e1e98238
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Filesize
14.8MB
MD52a90ba072e3b471bcde749b7cd016fa3
SHA1022469956011ddd8c84ab82f23bb4af9f3c2a5d9
SHA256e6e38df3a9b32c592012748cd2a01f29faeb0aee3028571cb2abfa8d4f997102
SHA5125886639582079c80871883aac6aa562215cb7b77de4a7dcc64916b83d39b96c03c4d0bee8e56efd87b39106226749561fc03292fd98e3d875eaa5e5b7b248530
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MD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e