hxxps://umsystems[.]net/arrr

Analysis

max time kernel
145s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
14/02/2024, 09:51

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General

Target

https://umsystems.net/arrr

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	msedge.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	msedge.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4968	msedge.exe
4968	msedge.exe
4972	msedge.exe
4972	msedge.exe
936	identity_helper.exe
936	identity_helper.exe
2916	msedge.exe
2916	msedge.exe
2916	msedge.exe
2916	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs

pid	Process
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe
4972	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4972 wrote to memory of 4316	4972	msedge.exe	85
PID 4972 wrote to memory of 4316	4972	msedge.exe	85
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 664	4972	msedge.exe	86
PID 4972 wrote to memory of 4968	4972	msedge.exe	88
PID 4972 wrote to memory of 4968	4972	msedge.exe	88
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87
PID 4972 wrote to memory of 5064	4972	msedge.exe	87

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://umsystems.net/arrr
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:4972
- 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,0x100,0x104,0xd8,0x108,0x7ffe4add46f8,0x7ffe4add4708,0x7ffe4add4718
  2⤵
  PID:4316
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2020,1553504442785282047,9111102562802748660,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2140 /prefetch:2
  2⤵
  PID:664
- 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=2020,1553504442785282047,9111102562802748660,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2200 /prefetch:8
  2⤵
  PID:5064
- 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=2020,1553504442785282047,9111102562802748660,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2216 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4968
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2020,1553504442785282047,9111102562802748660,131072 --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=3312 /prefetch:1
  2⤵
  PID:860
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2020,1553504442785282047,9111102562802748660,131072 --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=3332 /prefetch:1
  2⤵
  PID:4500
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2020,1553504442785282047,9111102562802748660,131072 --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=4160 /prefetch:1
  2⤵
  PID:5088
- 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=2020,1553504442785282047,9111102562802748660,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5148 /prefetch:8
  2⤵
  PID:976
- 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=2020,1553504442785282047,9111102562802748660,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5148 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:936
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2020,1553504442785282047,9111102562802748660,131072 --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=5140 /prefetch:1
  2⤵
  PID:3568
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2020,1553504442785282047,9111102562802748660,131072 --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=5272 /prefetch:1
  2⤵
  PID:2628
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2020,1553504442785282047,9111102562802748660,131072 --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=3960 /prefetch:1
  2⤵
  PID:3552
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2020,1553504442785282047,9111102562802748660,131072 --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=2288 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2916

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1168

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2532

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
bcaf436ee5fed204f08c14d7517436eb

SHA1
637817252f1e2ab00275cd5b5a285a22980295ff

SHA256
de776d807ae7f2e809af69746f85ea99e0771bbdaaed78a764a6035dabe7f120

SHA512
7e6cf2fdffdcf444f6ef4a50a6f9ef1dfb853301467e3f4784c9ee905c3bf159dc3ee9145d77dbf72637d5b99242525eb951b91c020e5f4e5cfcfd965443258c

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

Filesize
181B

MD5
b63320088b645056cd65d20261d1fc54

SHA1
77afc14d160c3148181390e3e254e2310ed9a538

SHA256
40b72ee861d9b105c5f9518f97ea2bfea1f4f7524cf4c42c411a862b23f752f8

SHA512
f05f3e1330a148cbfa87149778db9268a3fbb63ad4a3876497373257469a9e96c339f26e25cfede25c91b4b00d89cb30833f8b752e86488696bbb988ff3d64a5

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

Filesize
111B

MD5
285252a2f6327d41eab203dc2f402c67

SHA1
acedb7ba5fbc3ce914a8bf386a6f72ca7baa33c6

SHA256
5dfc321417fc31359f23320ea68014ebfd793c5bbed55f77dab4180bbd4a2026

SHA512
11ce7cb484fee66894e63c31db0d6b7ef66ad0327d4e7e2eb85f3bcc2e836a3a522c68d681e84542e471e54f765e091efe1ee4065641b0299b15613eb32dcc0d

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

Filesize
5KB

MD5
a9ce51fc9944f5ebadbc071d7aa67cb3

SHA1
cfe98bd27a82a43034c60a23221caf7cda4652cb

SHA256
d98aa5bae12e0ea8f08c6d096bb7d71b892cae243495765ebf430a445f1c2f6d

SHA512
6fa059e1fcddf9e5f1db18168522552b6133d93e755e4ccd2ec363867aee35f13e88ec782aa270b1842a2de48e1309be2c7d71ff5453e1c374254d640965ccbf

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

Filesize
5KB

MD5
60f3266c3f1592ef9b231303e217c266

SHA1
1731102247010b027edbe66d5dcf73743334cd66

SHA256
0def7072d0a4e3f6688fe4013a3c8840dc949725bae01471b5677059122e2193

SHA512
12ece0f34c775bf26ff49a1a3f350f93e2b00be140003aa0764e110bbf296f20e417eb84150c3c4f4516cb9dc4ccb59350e12df68cb55fdb00dd4a969eea86b9

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

Filesize
24KB

MD5
b0ba6f0eee8f998b4d78bc4934f5fd17

SHA1
589653d624de363d3e8869c169441b143c1f39ad

SHA256
4b5ee509e727accbd11493dda2c1d512e7dbfaff66c4f5f7ea9c2d2ccd06151f

SHA512
e9a165da246c6b80fc38431538203cf03f95794184ff63f00c9500f8919a2028b803f64b670e685185eed72df0509e3185c9b434fdbf2bc7af36021d46bd08d9

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
10KB

MD5
ed72af4b23a990d467cf049bf223230e

SHA1
bfddc6de46a6a081bc48401e8833985dcb822f33

SHA256
ecff1e91bf7aa8d6d6eb0f8724e9a62da5ba3f4e55b4305c52372754814c67b1

SHA512
a0a9569e4c810493d4d920e3ceea558d27b6112c0efcb524256442687aa63bdba1d35390766a8d5c4fa0770101ffe5de09d61d64997cc8b0d43e385230e07111

Download Submit