hxxps://eftatotaxrefund[.]info/log[.]html

Analysis

max time kernel
146s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17/04/2024, 04:12

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General

Target

https://eftatotaxrefund.info/log.html

Score

1^/10

Malware Config

Signatures

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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
2600	msedge.exe
2600	msedge.exe
4468	msedge.exe
4468	msedge.exe
4612	identity_helper.exe
4612	identity_helper.exe
4844	msedge.exe
4844	msedge.exe
4844	msedge.exe
4844	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs

pid	Process
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe
4468	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4468 wrote to memory of 1188	4468	msedge.exe	86
PID 4468 wrote to memory of 1188	4468	msedge.exe	86
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 4180	4468	msedge.exe	87
PID 4468 wrote to memory of 2600	4468	msedge.exe	88
PID 4468 wrote to memory of 2600	4468	msedge.exe	88
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89
PID 4468 wrote to memory of 3528	4468	msedge.exe	89

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://eftatotaxrefund.info/log.html
1⤵
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4468
- 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,0x100,0x104,0xd8,0x108,0x7ff807f846f8,0x7ff807f84708,0x7ff807f84718
  2⤵
  PID:1188
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2068,15530438371558298790,1992324455775926580,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2088 /prefetch:2
  2⤵
  PID:4180
- 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=2068,15530438371558298790,1992324455775926580,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2160 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2600
- 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=2068,15530438371558298790,1992324455775926580,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2788 /prefetch:8
  2⤵
  PID:3528
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,15530438371558298790,1992324455775926580,131072 --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=3268 /prefetch:1
  2⤵
  PID:1836
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,15530438371558298790,1992324455775926580,131072 --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=3284 /prefetch:1
  2⤵
  PID:5016
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,15530438371558298790,1992324455775926580,131072 --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=4452 /prefetch:1
  2⤵
  PID:4904
- 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=2068,15530438371558298790,1992324455775926580,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3908 /prefetch:8
  2⤵
  PID:1452
- 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=2068,15530438371558298790,1992324455775926580,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3908 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4612
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,15530438371558298790,1992324455775926580,131072 --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=5188 /prefetch:1
  2⤵
  PID:3948
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,15530438371558298790,1992324455775926580,131072 --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=5204 /prefetch:1
  2⤵
  PID:4892
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,15530438371558298790,1992324455775926580,131072 --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=5468 /prefetch:1
  2⤵
  PID:2732
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2068,15530438371558298790,1992324455775926580,131072 --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=4888 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4844

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2352

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1968

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
7b56675b54840d86d49bde5a1ff8af6a

SHA1
fe70a1b85f88d60f3ba9fc7bb5f81fc41e150811

SHA256
86af7213f410df65d0937f4331f783160f30eaeb088e28a9eef461713b9a3929

SHA512
11fc61b83365391efee8084de5c2af7e064f0182b943a0db08d95a0f450d3877bde5b5e6a6b9f008e58b709bb1a34f7b50085c41927f091df1eea78f039402e9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
48cff1baabb24706967de3b0d6869906

SHA1
b0cd54f587cd4c88e60556347930cb76991e6734

SHA256
f6b5fbc610a71b3914753feb2bd4475a7c77d0d785cc36255bf93b3fe3ccb775

SHA512
fd0c848f3f9de81aca81af999262f96ea4c1cd1d1f32d304f56c7382f3b1bb604e5fbe9f209ad6e4b38988d92357ef82e9668806d0727f2856c7dc1f07aae2b6

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

Filesize
6KB

MD5
0e90d0ad371cb63f7974487b2d6266fc

SHA1
a0881f73f086594158cf08a9b444923d03799ecf

SHA256
9392fcfd9291c8dae952fbf2288d2b7e27c248505440251f1414a5bb72a78c9f

SHA512
1c25ea4563b7377b0b8ceb022c1e726f9c36c3d0dbc44085cf950f6beb071de77a941b23aba90642db9aca6f71037881e3e049635cb9a7104d4d4a2793e4b310

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

Filesize
16B

MD5
6752a1d65b201c13b62ea44016eb221f

SHA1
58ecf154d01a62233ed7fb494ace3c3d4ffce08b

SHA256
0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

SHA512
9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

Filesize
8KB

MD5
af2a0e3764a3cf94bbeccedf4971ba12

SHA1
cd807536c74eeb876635c371d3793fcee198b038

SHA256
b7ccb48124da8853f529c55fb30fcdf27d47e376359590ba9a6f3ea011ca12e7

SHA512
b703946c300fab9b66e28b29fd102adef0d1b4577eb69e90c69ed0efc51013ba530b0c90b1dee336d2252ca2a794f411b6d246fc823d93d531efc0a5404ba05a

Download Submit