01ee2a5ca31c9fd8fd5584b9b971263457b9c9388b7206963557d884687e5b73

Analysis

max time kernel
32s
max time network
37s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
21/02/2024, 03:03

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General

Target

windows_wallpaper.dll
Size

261KB
MD5

065fc90b295bf1e508512c8cee3c7713
SHA1

e7c04a0424f1079b0f79ebaaf737e4f5458e2d30
SHA256

01ee2a5ca31c9fd8fd5584b9b971263457b9c9388b7206963557d884687e5b73
SHA512

53563cfa1dcbdea03b74bdb6154ff635c12c3922f09c18ad56f4715f6c8a02bfa5a2ec071033465c8f9b5ced8ca00a5c4118b1eb75fabfd60a03dadc2dff7299
SSDEEP

3072:C0E+XfB1GKd/Pq6/Okg15ZLMvTcF1jjS1pE8V4f46ZgLdj6nGycH6My+:CsdaGOBZgvT6XypES40jFT6

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
3	1100	rundll32.exe
3	1100	rundll32.exe
3	1100	rundll32.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4744 set thread context of 1100	4744	rundll32.exe	84

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

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	chrome.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Cryptography\TPM\Telemetry\TraceTimeLast = "133529582367588217"	chrome.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2072	chrome.exe
2072	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs

pid	Process
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe

Suspicious use of AdjustPrivilegeToken 32 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2072	chrome.exe
Token: SeCreatePagefilePrivilege	2072	chrome.exe
Token: SeShutdownPrivilege	2072	chrome.exe
Token: SeCreatePagefilePrivilege	2072	chrome.exe
Token: SeShutdownPrivilege	2072	chrome.exe
Token: SeCreatePagefilePrivilege	2072	chrome.exe
Token: SeShutdownPrivilege	2072	chrome.exe
Token: SeCreatePagefilePrivilege	2072	chrome.exe
Token: SeShutdownPrivilege	2072	chrome.exe
Token: SeCreatePagefilePrivilege	2072	chrome.exe
Token: SeShutdownPrivilege	2072	chrome.exe
Token: SeCreatePagefilePrivilege	2072	chrome.exe
Token: SeShutdownPrivilege	2072	chrome.exe
Token: SeCreatePagefilePrivilege	2072	chrome.exe
Token: SeShutdownPrivilege	2072	chrome.exe
Token: SeCreatePagefilePrivilege	2072	chrome.exe
Token: SeShutdownPrivilege	2072	chrome.exe
Token: SeCreatePagefilePrivilege	2072	chrome.exe
Token: SeShutdownPrivilege	2072	chrome.exe
Token: SeCreatePagefilePrivilege	2072	chrome.exe
Token: SeShutdownPrivilege	2072	chrome.exe
Token: SeCreatePagefilePrivilege	2072	chrome.exe
Token: SeShutdownPrivilege	2072	chrome.exe
Token: SeCreatePagefilePrivilege	2072	chrome.exe
Token: SeShutdownPrivilege	2072	chrome.exe
Token: SeCreatePagefilePrivilege	2072	chrome.exe
Token: SeShutdownPrivilege	2072	chrome.exe
Token: SeCreatePagefilePrivilege	2072	chrome.exe
Token: SeShutdownPrivilege	2072	chrome.exe
Token: SeCreatePagefilePrivilege	2072	chrome.exe
Token: SeShutdownPrivilege	2072	chrome.exe
Token: SeCreatePagefilePrivilege	2072	chrome.exe

Suspicious use of FindShellTrayWindow 27 IoCs

pid	Process
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe
2072	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4744 wrote to memory of 1100	4744	rundll32.exe	84
PID 4744 wrote to memory of 1100	4744	rundll32.exe	84
PID 4744 wrote to memory of 1100	4744	rundll32.exe	84
PID 2072 wrote to memory of 4284	2072	chrome.exe	87
PID 2072 wrote to memory of 4284	2072	chrome.exe	87
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 2628	2072	chrome.exe	91
PID 2072 wrote to memory of 4956	2072	chrome.exe	92
PID 2072 wrote to memory of 4956	2072	chrome.exe	92
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95
PID 2072 wrote to memory of 4232	2072	chrome.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\windows_wallpaper.dll,#1
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4744
- C:\Windows\system32\rundll32.exe
  rundll32.exe
  2⤵
  - Blocklisted process makes network request
  PID:1100

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe"
1⤵
- Enumerates system info in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2072
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffd05979758,0x7ffd05979768,0x7ffd05979778
  2⤵
  PID:4284
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1768 --field-trial-handle=1824,i,11356724856636400344,12565837617218002736,131072 /prefetch:2
  2⤵
  PID:2628
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2136 --field-trial-handle=1824,i,11356724856636400344,12565837617218002736,131072 /prefetch:8
  2⤵
  PID:4956
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2900 --field-trial-handle=1824,i,11356724856636400344,12565837617218002736,131072 /prefetch:1
  2⤵
  PID:2704
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2892 --field-trial-handle=1824,i,11356724856636400344,12565837617218002736,131072 /prefetch:1
  2⤵
  PID:1340
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2280 --field-trial-handle=1824,i,11356724856636400344,12565837617218002736,131072 /prefetch:8
  2⤵
  PID:4232
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=4684 --field-trial-handle=1824,i,11356724856636400344,12565837617218002736,131072 /prefetch:1
  2⤵
  PID:1112
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4616 --field-trial-handle=1824,i,11356724856636400344,12565837617218002736,131072 /prefetch:8
  2⤵
  PID:2768
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5256 --field-trial-handle=1824,i,11356724856636400344,12565837617218002736,131072 /prefetch:8
  2⤵
  PID:536
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5400 --field-trial-handle=1824,i,11356724856636400344,12565837617218002736,131072 /prefetch:8
  2⤵
  PID:1216

C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
1⤵
PID:956

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\Google\Chrome\User Data\Default\Network\Network Persistent State

Filesize
1KB

MD5
2d65ddb9a77bcf87f37c9a6407ead5fb

SHA1
617eb8e9db7f11ce2fcd06ecac2702fff12c1f07

SHA256
b2a6ecc9c22570c9a4e0352139ef1567f909e7f888dbcf31f5db719915ba0f41

SHA512
52bbae8824fc6e2607e8befcdfa988dba17decc6f96b4b0c40f1ad07c3308a8e36c338b20cb40060420056232e8007d117823309f8c7d2f1ae02b69f94fc17a4

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity

Filesize
371B

MD5
3316d7f53735967a5703967f969013da

SHA1
07a13d7398a485d8666d2daf726b7007fde17571

SHA256
15f26c2beacdba100a2d4de886ae085077f7dcbde292d742a34b7c9460c40955

SHA512
35242181ed378911ce749c7c05b78fd250e9f978e5229ba726d0e36ece17098db5a836b192a21d7d68eaa7e3fd964f7eb414740e90c5f06539f621427046086e

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

Filesize
6KB

MD5
c92e4d6e89a0c001d0c79d5b6d58b480

SHA1
ef0abc56941d9a026dc3bcfea4fb979069395b81

SHA256
74a58063c6379455c497a9e1789167449a84f42541e5a97459b8673518c8eaa6

SHA512
a83a874cab3c26ed82d8f4a26b31a6568bfea5e06f26da2ae4d71f1db010520cfc68840b6a4196e7c1902249df7653121438707820a7cd6c72eafd35fd9f420f

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

Filesize
6KB

MD5
95bd4ddf30da89935e3923ff011113c1

SHA1
d84e6f3e881904e0d37cc4a5c0ffe45215bbb006

SHA256
ef40554a324c0c010a0d117819c022bc1823b30b94a126ec9b0052130ad4dd7a

SHA512
21bd9eb9e9d2d5d6d2bdecef3ef973cf585527f233ab7a5cf7a5c5dd8afb96767310394aebfe15934b034a66f8af25f63494f4fbcc9b4018e469ccc5ffcae5cd

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences

Filesize
15KB

MD5
65aa9150c5109b88bbce00ff29d3ef23

SHA1
0cc7878ffbb8a4e6ad3d1bcc1a0028fe3b5b2f84

SHA256
9b993956cfac20103f3e3e86a896a40d99feee08707e23b4044cd80ee32e5c8e

SHA512
b47d26646d89fab0b1b8b627cf8ef524323ca09d8f758f723266aa78193e01968953b42f47974060b4f02e3ce9dbd429c791d563461b3ed945b5dd82542daa26

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

Filesize
242KB

MD5
9ad4fa88d7f9185acacf1d26240f6a79

SHA1
ba5441a95be3e83e17a71f9bb70514f23ace75c6

SHA256
130daab19c95d2e029b0a48ea13b8cf1daeca5caefea519d41227854bb98e50c

SHA512
cb94f8f2049f3593d7d9ad07327c0a3245be782eaf9204e4560d895504be6159acce2a5f0e72eb9d18ed61b078f789e4d47c831d1d47c29cfaa7bd607d578961

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

Filesize
115KB

MD5
ec4a8b87f4ef44df4a2752a90f61feea

SHA1
1fb3e87176a087c343b732126f155bcc638c45fd

SHA256
ce8696fda270fa6350b1c80a10bcdf8893fc5ad04da05fc24a071790095e687d

SHA512
41b5174ef8deefbfb9a804da6f1f3be07dc1c09daa6cff02fe16c9be3626571641cacfff2e353864a63f5401d741ec67ad9b6d53c6c4c5ae32ce1a04d5b28f50

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

Filesize
242KB

MD5
a0acf0232c7877fa42ad53fb9395367b

SHA1
77c59e423bf46a4a2f527eb7eb6b9fc39588e206

SHA256
24a58db735b6391ebb0ca120fff5c024948b5fbd2848c736d368c52ae3a245b3

SHA512
8740916c6939bee5551096fc9241911f0a9d5d5e24f38494de41fedc2b7c8a39df7de36aee7ac8304d5a0559a3210374972ac3cea67c2297288ce24274abb59f

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\ShaderCache\data_1

Filesize
264KB

MD5
f50f89a0a91564d0b8a211f8921aa7de

SHA1
112403a17dd69d5b9018b8cede023cb3b54eab7d

SHA256
b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

SHA512
bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\persisted_first_party_sets.json

Filesize
2B

MD5
99914b932bd37a50b983c5e7c90ae93b

SHA1
bf21a9e8fbc5a3846fb05b4fa0859e0917b2202f

SHA256
44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

SHA512
27c74670adb75075fad058d5ceaf7b20c4e7786c83bae8a32f626f9782af34c9a33c2046ef60fd2a7878d378e29fec851806bbd9a67878f3a9f1cda4830763fd

Download Submit
memory/1100-0-0x0000027CB1BE0000-0x0000027CB1C20000-memory.dmp

Filesize
256KB

Download
memory/1100-1-0x0000027CB1EB0000-0x0000027CB1EE9000-memory.dmp

Filesize
228KB

Download