hxxps://www[.]4rf[.]com/

Analysis

max time kernel
208s
max time network
206s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10/04/2024, 08:51

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General

Target

https://www.4rf.com/

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
1120	msedge.exe
1120	msedge.exe
4996	msedge.exe
4996	msedge.exe
4884	identity_helper.exe
4884	identity_helper.exe
1372	msedge.exe
1372	msedge.exe
1372	msedge.exe
1372	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs

pid	Process
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe
4996	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 3484	4996	msedge.exe	85
PID 4996 wrote to memory of 3484	4996	msedge.exe	85
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 3928	4996	msedge.exe	86
PID 4996 wrote to memory of 1120	4996	msedge.exe	87
PID 4996 wrote to memory of 1120	4996	msedge.exe	87
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88
PID 4996 wrote to memory of 4352	4996	msedge.exe	88

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://www.4rf.com/
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:4996
- 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,0x100,0x104,0xd8,0x108,0x7ffe2f6246f8,0x7ffe2f624708,0x7ffe2f624718
  2⤵
  PID:3484
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2112,13361777474975508188,6691173788880260192,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2208 /prefetch:2
  2⤵
  PID:3928
- 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=2112,13361777474975508188,6691173788880260192,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2216 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1120
- 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=2112,13361777474975508188,6691173788880260192,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2872 /prefetch:8
  2⤵
  PID:4352
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2112,13361777474975508188,6691173788880260192,131072 --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=3360 /prefetch:1
  2⤵
  PID:2276
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2112,13361777474975508188,6691173788880260192,131072 --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=3368 /prefetch:1
  2⤵
  PID:4020
- 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=2112,13361777474975508188,6691173788880260192,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5688 /prefetch:8
  2⤵
  PID:3456
- 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=2112,13361777474975508188,6691173788880260192,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5688 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4884
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2112,13361777474975508188,6691173788880260192,131072 --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=5228 /prefetch:1
  2⤵
  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=2112,13361777474975508188,6691173788880260192,131072 --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=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5164 /prefetch:1
  2⤵
  PID:1556
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2112,13361777474975508188,6691173788880260192,131072 --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=4940 /prefetch:1
  2⤵
  PID:2964
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2112,13361777474975508188,6691173788880260192,131072 --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=5020 /prefetch:1
  2⤵
  PID:2376
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2112,13361777474975508188,6691173788880260192,131072 --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=2736 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1372

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4044

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1272

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
e494d16e4b331d7fc483b3ae3b2e0973

SHA1
d13ca61b6404902b716f7b02f0070dec7f36edbf

SHA256
a43f82254638f7e05d1fea29e83545642f163a7a852f567fb2e94f0634347165

SHA512
016b0ed886b33d010c84ca080d74fa343da110db696655c94b71a4cb8eb8284748dd83e06d0891a6e1e859832b0f1d07748b11d4d1a4576bbe1bee359e218737

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

Filesize
152B

MD5
0764f5481d3c05f5d391a36463484b49

SHA1
2c96194f04e768ac9d7134bc242808e4d8aeb149

SHA256
cc773d1928f4a87e10944d153c23a7b20222b6795c9a0a09b81a94c1bd026ac3

SHA512
a39e4cb7064fdd7393ffe7bb3a5e672b1bdc14d878cac1c5c9ceb97787454c5a4e7f9ae0020c6d524920caf7eadc9d49e10bee8799d73ee4e8febe7e51e22224

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index

Filesize
240B

MD5
015d87a41745293831448b38f0d20c17

SHA1
b070a27952e05a9da0440d94106318d33862f643

SHA256
b2a6f862ab776b60a26d4512f5bd1940db9394e370cd00396c8e8b47cf01d00d

SHA512
24d53b338d03bf3cad62c6bafc4255c43e60207236ed635a6bdfa0b74852923c8556726fe7b49c8bf65b3ecbf158e82c5032c813ed10c509b6d800895d79e11e

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

Filesize
1KB

MD5
034a77d4e963411fb00480776def11fc

SHA1
f41034eeb811f4da5d2d227b631fb4ff145113f7

SHA256
7728748023bba0801b63ea2ac6271fe5ccacee972a474ae286fb054346d4526c

SHA512
51ebd5b469378cbfedbcdf73e379695a9c8ea25c377b6eef5e0caea6163ae85aec6a217c9ee2eaa776c79af0ca3f82154fa1b96cb118ce5d8bd481187b8f0426

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

Filesize
6KB

MD5
0476c03e44da4431ebaca22b08a37759

SHA1
e94010f831688617f3aeab3efd5cbab9ffd169c9

SHA256
65c1f1885fcacb60dc1dabaf2336f80a7f72dfdc986b8b995814668a6189f19d

SHA512
2abf67c9f7341fd11ed38da01b4bb28d01faacb027bb19dda26ea4ac5f055c509acc56cf0857adddea7d58dd3b56213f4fa7c43b7f44a4f03894ebc8ea512a43

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

Filesize
6KB

MD5
683d082f174d0673f4b28ddb9d8b8b6d

SHA1
08b3945d988a736494ee6751646c837173cd39f7

SHA256
d466fc885a4d0c8b7f2a677c9f9cc8cbfd0b64404697e17db9a0a9da86e7173c

SHA512
ad23d44ed92d9593f919dfb3000266528887485573211d0f32795831e855b7cf596eef07653b67f38cf40f02fb86166a83c358413e0f77c23f7f250308ccba74

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
11KB

MD5
5740c669153ece57951652d873e52c90

SHA1
3ab30da594710d61756ebb8e462f4668671feb84

SHA256
b6bc7415e9ee5f6919190a1eaccbbd9b6001a2d37038ae188e2c026ecba8312c

SHA512
19aea2e37d444996ca50ef2a3e3144149571a5b4e39f3a2b837855fec42393c601ba224a93d555a830c4040ef840e8e6caae15235da8ff1f73f395f072038da1

Download Submit