Analysis
-
max time kernel
145s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
19-09-2024 04:10
Static task
static1
Behavioral task
behavioral1
Sample
ea8f73657989d8dbc1e18cda39806271_JaffaCakes118.html
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
ea8f73657989d8dbc1e18cda39806271_JaffaCakes118.html
Resource
win10v2004-20240802-en
General
-
Target
ea8f73657989d8dbc1e18cda39806271_JaffaCakes118.html
-
Size
225KB
-
MD5
ea8f73657989d8dbc1e18cda39806271
-
SHA1
ffed3cfd6fae6e1f80cd68c29197e15320ba4215
-
SHA256
fef7ec49717be691cbfe5c3dd2125a19c1a8d3250d27f97a6617d7fd027e0b16
-
SHA512
45e2501902c8264b375027927acebdada509106ed42488df97117d76ed3ebc7df84e28c1d95f07314bf54d75a73c8fc2c762494026ebf3a844bdb402b4568827
-
SSDEEP
3072:IrGymOAcBWyeAcBNpBeNpbOnS4A6WVIF/MA2tF1Mjn7jyPOJQF7Zo:IrGyJAcAyeAcTpBeNgntVEMj7+o
Malware Config
Signatures
-
Enumerates system info in registry 2 TTPs 3 IoCs
description 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 10 IoCs
pid Process 3416 msedge.exe 3416 msedge.exe 5044 msedge.exe 5044 msedge.exe 4332 identity_helper.exe 4332 identity_helper.exe 2832 msedge.exe 2832 msedge.exe 2832 msedge.exe 2832 msedge.exe -
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 8 IoCs
pid Process 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe -
Suspicious use of FindShellTrayWindow 25 IoCs
pid Process 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe -
Suspicious use of SendNotifyMessage 24 IoCs
pid Process 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe 5044 msedge.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 5044 wrote to memory of 2500 5044 msedge.exe 82 PID 5044 wrote to memory of 2500 5044 msedge.exe 82 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 548 5044 msedge.exe 83 PID 5044 wrote to memory of 3416 5044 msedge.exe 84 PID 5044 wrote to memory of 3416 5044 msedge.exe 84 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85 PID 5044 wrote to memory of 2368 5044 msedge.exe 85
Processes
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\AppData\Local\Temp\ea8f73657989d8dbc1e18cda39806271_JaffaCakes118.html1⤵
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:5044 -
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=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffb53e546f8,0x7ffb53e54708,0x7ffb53e547182⤵PID:2500
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2068,2822505862663946725,3948701043825651722,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2072 /prefetch:22⤵PID:548
-
-
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=2068,2822505862663946725,3948701043825651722,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2484 /prefetch:32⤵
- Suspicious behavior: EnumeratesProcesses
PID:3416
-
-
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=2068,2822505862663946725,3948701043825651722,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2776 /prefetch:82⤵PID:2368
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,2822505862663946725,3948701043825651722,131072 --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=3244 /prefetch:12⤵PID:380
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,2822505862663946725,3948701043825651722,131072 --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=3256 /prefetch:12⤵PID:1016
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,2822505862663946725,3948701043825651722,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6120 /prefetch:12⤵PID:1832
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,2822505862663946725,3948701043825651722,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4972 /prefetch:12⤵PID:892
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe"C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2068,2822505862663946725,3948701043825651722,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5460 /prefetch:82⤵PID:3212
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe"C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2068,2822505862663946725,3948701043825651722,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5460 /prefetch:82⤵
- Suspicious behavior: EnumeratesProcesses
PID:4332
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,2822505862663946725,3948701043825651722,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5768 /prefetch:12⤵PID:708
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,2822505862663946725,3948701043825651722,131072 --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=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5752 /prefetch:12⤵PID:2080
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,2822505862663946725,3948701043825651722,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4020 /prefetch:12⤵PID:4372
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,2822505862663946725,3948701043825651722,131072 --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=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3296 /prefetch:12⤵PID:5076
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2068,2822505862663946725,3948701043825651722,131072 --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=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAQAAAAAAAAAAAAAAAAAABgAAAEAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=4740 /prefetch:22⤵
- Suspicious behavior: EnumeratesProcesses
PID:2832
-
-
C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:2880
-
C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:1588
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
152B
MD59b008261dda31857d68792b46af6dd6d
SHA1e82dc88e2d1da2df7cb19d79a0346b9bb90d52b3
SHA2569ac598d4f8170f7e475d84103aead9e3c23d5f2d292741a7f56a17bde8b6f7da
SHA51278853091403a06beeec4998e2e3a4342111895ffd485f7f7cd367741a4883f7a25864cba00a6c86f27dc0c9ce9d04f08011ecc40c8ae9383d33274739ac39f10
-
Filesize
152B
MD50446fcdd21b016db1f468971fb82a488
SHA1726b91562bb75f80981f381e3c69d7d832c87c9d
SHA25662c5dc18b25e758f3508582a7c58bb46b734a774d97fc0e8a20614235caa8222
SHA5121df7c085042266959f1fe0aedc5f6d40ceba485b54159f51f0c38f17bb250b79ea941b735e1b6faf219f23fe8ab65ac4557f545519d52d5416b89ad0f9047a31
-
Filesize
970B
MD51a2b946252755dfd39f11a740a61afb6
SHA10950e0706ec10c8b18e121ad49fcbafccd1cbc46
SHA2569c610c6c96b4bb2f98383678d97befbb576eb6433aa0274bc6d8e95323ecaa5b
SHA5123afcc02d722f44221f54e595306f1d7b1afd5fc6dd5d81e58a2865e160df6dd99a08f9b35dc54693a9ccd75e4cf6712a668ec49eabd05955aaeb2bbfe3443edf
-
Filesize
5KB
MD5456a2e72b2736545bd5f17ddb7e00cba
SHA1a6c2121cdfcd4e4d0e46260cf7056f01f753a458
SHA2563441d419059120c42a4d2b6b498809c11e2067357087b64bdfe1df45a65b713d
SHA51278e84b5f5644f1af37af32b9bdb67eef446040b0ba4c2b8de4c82a04adfb58801e26967eb17c02e7d5d7b5c4bfbbafff5acc73d3260ba4c539d293f40c0a063e
-
Filesize
6KB
MD523d0bb14591d4766440e485c0c6609f1
SHA1954bdff4ee2f106f6052ba1abeb4f86adf99578b
SHA256a28fe7123cfc6bd1685f9aacf18373ffba90da46965ba28874a0bf3d03a6a3e0
SHA512dabca1bcfae92f7a14b75584bbc7daef8675969ae8ca726735aeb490ec8967148722d04bf09d30005a0a37c4bb7e6c6df1f2d9d6550ad60173ac4b625569a8aa
-
Filesize
7KB
MD5b84309bce7ce9c796725dec2e35f3434
SHA1886fba0528e59169b23d6d328644c270401957b1
SHA256978c0b7e4f00adec1d781f3655f4512e24bc08ad839c8b7c23609f1b4a6d8ce7
SHA5128da08cd94b08b69d157e7efe1a6b5c24c8204f8a040906e02b367247a669deee42976a5f96bd01b608b66c32bd51af07e7468fc5c9819febd4f68e42cdf51435
-
Filesize
6KB
MD5173e795795db1139c30243aacd8035ec
SHA1e529da07079b78e4cf937cf376b6103e6dfaf0b2
SHA256cb78b9257d5e1e7b1ebe4d46802d79719b105c8cb177487bb061ad29cef6f4e3
SHA51298d3f66cd8c52bb8cad4c34ba49bb18411967ac9ed310a05ab107eb6eecdc317b5d5e263fae27baa27746a8bf3cb9a6f6264ae3838e93bdfbee790055d65137f
-
Filesize
538B
MD5833c1b223ee461480435fd3e544c91ca
SHA1ea373f3a21b6191699efb923f9a00b1d7b790019
SHA2568bce033663762c735380b97b2eb9c31ec91bf04c1b97fb5b7167d809ddf76130
SHA5120e59e5675c43f1f8e2da43ac35024873008ab886e635c556aab7c39b5e364baf9e25b1c0bb7eeadefa51465828ac0025aba462c1ddae85996c5bfa81384c1759
-
Filesize
538B
MD57b6ff693049264c14913c23d050a6498
SHA1d0654cdd3e6f4f2b87962cc5abe7367ab47fa8f0
SHA2566f4ec3ca8a35844b907fb6de53706b88ffe3ba5124aee0c08f842d47abed5f2e
SHA5121484bab57aaf212293c1d028435656746eeaf3e5e434b6e3342e212e898f04bbef0bc89788e96fc63ea1f5e2828e57eb25301cbbd836684da7cdadda42329c8a
-
Filesize
16B
MD5206702161f94c5cd39fadd03f4014d98
SHA1bd8bfc144fb5326d21bd1531523d9fb50e1b600a
SHA2561005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167
SHA5120af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145
-
Filesize
16B
MD546295cac801e5d4857d09837238a6394
SHA144e0fa1b517dbf802b18faf0785eeea6ac51594b
SHA2560f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
SHA5128969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23
-
Filesize
10KB
MD544dc7d4205dcc3bdaa8e173fc2e35ea1
SHA113041b44a4fa5fa694996c50ef5833c59a3b4b07
SHA256f5728d70aae4b1b060314eb7640925452b54b8a691b0c2bf833cf17f680d1006
SHA512e26ad08e554e06089d5fd5d2f08cd1265418111c0e823acc49c6842996b1f8ba50d55c3990bd4a9af245db438fd22ee36fcb3d7b8042f0d39ff4678bb5cb6fe3