hxxps://nullbulge[.]se/blog[.]html

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
21/07/2024, 10:53

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General

Target

https://nullbulge.se/blog.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
3176	msedge.exe
3176	msedge.exe
4904	msedge.exe
4904	msedge.exe
4372	identity_helper.exe
4372	identity_helper.exe
1956	msedge.exe
1956	msedge.exe
1956	msedge.exe
1956	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs

pid	Process
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe
4904	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 3952	4904	msedge.exe	84
PID 4904 wrote to memory of 3952	4904	msedge.exe	84
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 4388	4904	msedge.exe	85
PID 4904 wrote to memory of 3176	4904	msedge.exe	86
PID 4904 wrote to memory of 3176	4904	msedge.exe	86
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87
PID 4904 wrote to memory of 4804	4904	msedge.exe	87

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://nullbulge.se/blog.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:4904
- 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,0x100,0x104,0xd8,0x108,0x7ffa842a46f8,0x7ffa842a4708,0x7ffa842a4718
  2⤵
  PID:3952
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2116,17967918623224554527,14355959906199235152,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2128 /prefetch:2
  2⤵
  PID:4388
- 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=2116,17967918623224554527,14355959906199235152,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2304 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3176
- 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=2116,17967918623224554527,14355959906199235152,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2888 /prefetch:8
  2⤵
  PID:4804
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17967918623224554527,14355959906199235152,131072 --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=3296 /prefetch:1
  2⤵
  PID:2348
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17967918623224554527,14355959906199235152,131072 --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=3316 /prefetch:1
  2⤵
  PID:4376
- 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=2116,17967918623224554527,14355959906199235152,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5288 /prefetch:8
  2⤵
  PID:1724
- 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=2116,17967918623224554527,14355959906199235152,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5288 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  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=2116,17967918623224554527,14355959906199235152,131072 --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=5284 /prefetch:1
  2⤵
  PID:2960
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17967918623224554527,14355959906199235152,131072 --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=5364 /prefetch:1
  2⤵
  PID:2588
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17967918623224554527,14355959906199235152,131072 --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=3392 /prefetch:1
  2⤵
  PID:3604
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17967918623224554527,14355959906199235152,131072 --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=5612 /prefetch:1
  2⤵
  PID:2404
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2116,17967918623224554527,14355959906199235152,131072 --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=5400 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1956

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4796

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3904

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
c00b0d6e0f836dfa596c6df9d3b2f8f2

SHA1
69ad27d9b4502630728f98917f67307e9dd12a30

SHA256
578481cd359c669455e24983b13723c25584f58925b47283cb580019ef3142b1

SHA512
0e098ab5f5772fec17880e228a0dccbbaa06dc1af14e0fd827f361599c61899fe07d612a7f7b049ff6661d27fdc495566dd20fc28ceed022b87c212bf00be5da

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

Filesize
152B

MD5
54f1b76300ce15e44e5cc1a3947f5ca9

SHA1
c978bfaa6ec6dae05464c6426eaa6cb3c3e2f3b7

SHA256
43dec5d87b7ee892a3d99cb61f772ba403882ac0772423f36034e84244c1ca24

SHA512
ac26e5676c675be329eb62b5d5a36a0e6014ab8a6366684b0fc2a59ae5f061f596f462b82eb4e9f135d2235a0cbd4af96680d234eecc873a8397fd81507d277a

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

Filesize
192B

MD5
8520c79461a6a99f6c25c9bdf13d1472

SHA1
75c02b70922ea897ff11dd3e5c1750d26beb299a

SHA256
e1650294369b8ceb7a52517f92720320c936a223aaa4868d29ec2d491fa18a03

SHA512
d019c18c811f05bcf2276d11df748e92eedd0c9fa60b484dfca20f86cc147cd3d0b48f0e9e44e8f9b5319d729f5492eb13ca24f2d7d3f8232158a962d3516676

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

Filesize
1KB

MD5
ed14163309bfc61cc76514e9e1040a39

SHA1
74b88d6cba74a137c0c02471642a51ddcc99ed33

SHA256
e747e0dea00d33d57abb4509344067db32dd13f11411dd08c110834b74d92782

SHA512
1fc401e4c3b09d02a8832e27fcf5e99439447e3dd23b21eacf5a0452450a94f36609da77f4201627914d48394bb2460eda7df1536a1b2e3cd73139ed48846aa8

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

Filesize
5KB

MD5
3123806cd8eb2f3d5012887611a58974

SHA1
c3b65ccd5f45b7f9a92da6233864d7228d3ddb6c

SHA256
1740bcfc69a10ee31c84a2ab9436ef7a5c183bf715934b76cbed1635c63c2c75

SHA512
979561130c8a3757b459d7e2d6e0d04e8d975b5825c20750b3f8ab11d53c95d74f1027682c197ecf6cea46f4bcc4ce28e3b309055b966da064dcc6a395e46a49

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

Filesize
6KB

MD5
e57815ca0418b7344a9ea11c15b6a530

SHA1
d048c9ace952942a8e1b29b28ea4111428996530

SHA256
8d92330a83c156a359a1460b1df8a75e7eed84734d54f5af871f929a66c71f3a

SHA512
041b0534d23a0448829f1c67a4a2e295ccc08412f0209b42f147da1b1b61d11d69b6de7a6f309dcbddb5e007db8ae9183428fceab1fe75ecb469825ab62891e4

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
3e0d116c253a58f31aa328dcf5c9d319

SHA1
7e908e249a43594965190161798a834915e80b38

SHA256
fbc64fd24e316f679f054b11e2a01c02179ecb347685a06c9a46c234a08cb854

SHA512
8f4d11744c409928a6fabd444eba845998696c2e50ec5aa0901037d0dc3bac7b6d279e11429036834cbea0e15173530f2519203ac578b9d98457d55f628a9f67

Download Submit