Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system - submitted
13/06/2024, 04:58
Static task
static1
Behavioral task
behavioral1
Sample
Tax Returns of R48_765.js
Resource
win7-20240611-en
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
Tax Returns of R48_765.js
Resource
win11-20240508-en
10 signatures
150 seconds
General
- Target Tax Returns of R48_765.js
- Size 957KB
- Sample240613-flzbfaydrn
- SHA256 df018cc7e708b47edfe4f39769058ce0ba10a65fe653d3a32412dd504d3f2028
- MD5 0f597e6821a29bc87b36222f08eff311
- SHA1 e7f24cd04de9b92c013d71d3de526461cfb33c91
- SHA512 693ed1331f7f048789c11bc661949519149c43e3a76b3b600a1990f74763500a6b4a5efb532921bcdb58b27f3a136af9ba63e2e1dce4094fe078076d0073f1a7
- SSDEEP 6144:QQ5C90ha3hcY0c5OyZD5i8frkU+uKCbbBGZs3xh527wIy+6Y16vLKdYoiAL1Xl4R:TKF
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Tax Returns of R48_765.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Tax Returns of R48_765.js wscript.exe - Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 1 ip-api.com - Command and Scripting Interpreter: JavaScript 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 12 IoCs
pid Process 424 msedge.exe 424 msedge.exe 3552 msedge.exe 3552 msedge.exe 844 msedge.exe 844 msedge.exe 1576 identity_helper.exe 1576 identity_helper.exe 3120 msedge.exe 3120 msedge.exe 3120 msedge.exe 3120 msedge.exe - Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
pid Process 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe - Suspicious use of FindShellTrayWindow 25 IoCs
pid Process 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe - Suspicious use of SendNotifyMessage 12 IoCs
pid Process 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe 3552 msedge.exe - Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 400 wrote to memory of 1864 400 wscript.exe 79 PID 400 wrote to memory of 1864 400 wscript.exe 79 PID 3552 wrote to memory of 4664 3552 msedge.exe 83 PID 3552 wrote to memory of 4664 3552 msedge.exe 83 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 2864 3552 msedge.exe 84 PID 3552 wrote to memory of 424 3552 msedge.exe 85 PID 3552 wrote to memory of 424 3552 msedge.exe 85 PID 3552 wrote to memory of 4828 3552 msedge.exe 86 PID 3552 wrote to memory of 4828 3552 msedge.exe 86 PID 3552 wrote to memory of 4828 3552 msedge.exe 86 PID 3552 wrote to memory of 4828 3552 msedge.exe 86 PID 3552 wrote to memory of 4828 3552 msedge.exe 86 PID 3552 wrote to memory of 4828 3552 msedge.exe 86 PID 3552 wrote to memory of 4828 3552 msedge.exe 86 PID 3552 wrote to memory of 4828 3552 msedge.exe 86 PID 3552 wrote to memory of 4828 3552 msedge.exe 86 PID 3552 wrote to memory of 4828 3552 msedge.exe 86 PID 3552 wrote to memory of 4828 3552 msedge.exe 86 PID 3552 wrote to memory of 4828 3552 msedge.exe 86 PID 3552 wrote to memory of 4828 3552 msedge.exe 86 PID 3552 wrote to memory of 4828 3552 msedge.exe 86 PID 3552 wrote to memory of 4828 3552 msedge.exe 86 PID 3552 wrote to memory of 4828 3552 msedge.exe 86 PID 3552 wrote to memory of 4828 3552 msedge.exe 86 PID 3552 wrote to memory of 4828 3552 msedge.exe 86
Processes
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C:\Windows\system32\wscript.exewscript.exe "C:\Users\Admin\AppData\Local\Temp\Tax Returns of R48_765.js"1⤵
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:400 -
C:\Windows\System32\wscript.exe"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\Tax Returns of R48_765.js"2⤵
- Drops startup file
PID:1864
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --profile-directory=Default1⤵
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3552 -
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,0x7ffa499a3cb8,0x7ffa499a3cc8,0x7ffa499a3cd82⤵PID:4664
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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=1900,13561495596375488964,797456159624775203,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1928 /prefetch:22⤵PID:2864
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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=1900,13561495596375488964,797456159624775203,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2316 /prefetch:32⤵
- Suspicious behavior: EnumeratesProcesses
PID:424
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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=1900,13561495596375488964,797456159624775203,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2784 /prefetch:82⤵PID:4828
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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=1900,13561495596375488964,797456159624775203,131072 --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=3384 /prefetch:12⤵PID:924
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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=1900,13561495596375488964,797456159624775203,131072 --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=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3396 /prefetch:12⤵PID:2156
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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=1900,13561495596375488964,797456159624775203,131072 --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=4600 /prefetch:12⤵PID:2800
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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=1900,13561495596375488964,797456159624775203,131072 --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=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4640 /prefetch:12⤵PID:2868
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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=1900,13561495596375488964,797456159624775203,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4304 /prefetch:82⤵
- Suspicious behavior: EnumeratesProcesses
PID:844
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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=1900,13561495596375488964,797456159624775203,131072 --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=4544 /prefetch:12⤵PID:4556
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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=1900,13561495596375488964,797456159624775203,131072 --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=4852 /prefetch:12⤵PID:4232
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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=1900,13561495596375488964,797456159624775203,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5380 /prefetch:82⤵
- Suspicious behavior: EnumeratesProcesses
PID:1576
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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=1900,13561495596375488964,797456159624775203,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3492 /prefetch:12⤵PID:956
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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=1900,13561495596375488964,797456159624775203,131072 --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=1020 /prefetch:22⤵
- Suspicious behavior: EnumeratesProcesses
PID:3120
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:3356
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:4112
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
- Size 152B
- SHA256 429a870d582c77c8a661c8cc3f4afa424ed5faf64ce722f51a6a74f66b21c800
- MD5 c1c7e2f451eb3836d23007799bc21d5f
- SHA1 11a25f6055210aa7f99d77346b0d4f1dc123ce79
- SHA512 2ca40bbbe76488dff4b10cca78a81ecf2e97d75cd65f301da4414d93e08e33f231171d455b0dbf012b2d4735428e835bf3631f678f0ab203383e315da2d23a34
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
- Size 152B
- SHA256 ca5a6320d94ee74db11e55893a42a52c56c8f067cba35594d507b593d993451e
- MD5 6876cbd342d4d6b236f44f52c50f780f
- SHA1 a215cf6a499bfb67a3266d211844ec4c82128d83
- SHA512 dff3675753b6b733ffa2da73d28a250a52ab29620935960673d77fe2f90d37a273c8c6afdf87db959bdb49f31b69b41f7aa4febac5bbdd43a9706a4dd9705039
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
- Size 5KB
- SHA256 e51d68f2e13315545ef7aaaf1b860ee2525c77273946426d9d5948195fc5a137
- MD5 b5651f6ac984ef03ea6b25d8adb4f1a5
- SHA1 843b0acc3d9eadf9b0d969aba9201b4fbe4bf38d
- SHA512 c2c2bc02dcfcd6fc61144230614843bbe968ca715a48e878dc7de8d21683f372c8b6c4536d6d5cf81d100388644eb1508abf3ace7a35b62faae726a9e36cb360
- SSDEEP 96:n8k3H+mGLktvywSv0MoiVmdHINJp0WQyV+VuziX3wI3:n8k3eTLkt6v0MAIXpLM93
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT
- Size 16B
- SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
- MD5 46295cac801e5d4857d09837238a6394
- SHA1 44e0fa1b517dbf802b18faf0785eeea6ac51594b
- SHA512 8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT
- Size 16B
- SHA256 1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167
- MD5 206702161f94c5cd39fadd03f4014d98
- SHA1 bd8bfc144fb5326d21bd1531523d9fb50e1b600a
- SHA512 0af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
- Size 8KB
- SHA256 459ca419b7e23e6540649fbcfcb2498e1a8b16c255e63d0dba6d8a4cbd02e93e
- MD5 15d6e4f1567d6beea52d929e5d50c815
- SHA1 a8af3893a8aea52e2cd7ed627e0b85e05b5c4df4
- SHA512 9a7a35955f005973f5950e9a2b34b625de75e02b9f607fb46fdfd499a4639fdc200e8513301c07b0eb451c3a479050689494e5b7e2226b3f1761e3488ae1c673
- SSDEEP 192:coCL/Pgu90RZj8Sr6FA4ZiIxuERzA83h09RZxASGoOHe2RUAt3RyUASR6YJ:M9iIxuERzA83h09RZxASGrvRtkU7sYJ
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\Tax Returns of R48_765.js
- Size 957KB
- SHA256 df018cc7e708b47edfe4f39769058ce0ba10a65fe653d3a32412dd504d3f2028
- MD5 0f597e6821a29bc87b36222f08eff311
- SHA1 e7f24cd04de9b92c013d71d3de526461cfb33c91
- SHA512 693ed1331f7f048789c11bc661949519149c43e3a76b3b600a1990f74763500a6b4a5efb532921bcdb58b27f3a136af9ba63e2e1dce4094fe078076d0073f1a7
- SSDEEP 6144:QQ5C90ha3hcY0c5OyZD5i8frkU+uKCbbBGZs3xh527wIy+6Y16vLKdYoiAL1Xl4R:TKF
- MD5 SHA1 SHA512 SSDEEP