hxxp://bs[.]serving-sys[.]com

Analysis

max time kernel
61s
max time network
63s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
03/04/2023, 18:38

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General

Target

http://bs.serving-sys.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	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 = "133250207521704683"	chrome.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3268	chrome.exe
3268	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs

pid	Process
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe
Token: SeShutdownPrivilege	3268	chrome.exe
Token: SeCreatePagefilePrivilege	3268	chrome.exe

Suspicious use of FindShellTrayWindow 26 IoCs

pid	Process
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe
3268	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3268 wrote to memory of 1248	3268	chrome.exe	84
PID 3268 wrote to memory of 1248	3268	chrome.exe	84
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 2296	3268	chrome.exe	85
PID 3268 wrote to memory of 216	3268	chrome.exe	86
PID 3268 wrote to memory of 216	3268	chrome.exe	86
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87
PID 3268 wrote to memory of 4528	3268	chrome.exe	87

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" "--simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT'" http://bs.serving-sys.com
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:3268
- 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,0x100,0x104,0xd8,0x108,0x7ffb46e39758,0x7ffb46e39768,0x7ffb46e39778
  2⤵
  PID:1248
- 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=1784 --field-trial-handle=1812,i,16049690138676285529,3605430595306615401,131072 /prefetch:2
  2⤵
  PID:2296
- 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=2172 --field-trial-handle=1812,i,16049690138676285529,3605430595306615401,131072 /prefetch:8
  2⤵
  PID:216
- 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=2260 --field-trial-handle=1812,i,16049690138676285529,3605430595306615401,131072 /prefetch:8
  2⤵
  PID:4528
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=3056 --field-trial-handle=1812,i,16049690138676285529,3605430595306615401,131072 /prefetch:1
  2⤵
  PID:4880
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3080 --field-trial-handle=1812,i,16049690138676285529,3605430595306615401,131072 /prefetch:1
  2⤵
  PID:1872
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=4548 --field-trial-handle=1812,i,16049690138676285529,3605430595306615401,131072 /prefetch:1
  2⤵
  PID:1904
- 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=4956 --field-trial-handle=1812,i,16049690138676285529,3605430595306615401,131072 /prefetch:8
  2⤵
  PID:4308
- 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=5052 --field-trial-handle=1812,i,16049690138676285529,3605430595306615401,131072 /prefetch:8
  2⤵
  PID:3800
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=10 --mojo-platform-channel-handle=5036 --field-trial-handle=1812,i,16049690138676285529,3605430595306615401,131072 /prefetch:1
  2⤵
  PID:4176
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=11 --mojo-platform-channel-handle=5124 --field-trial-handle=1812,i,16049690138676285529,3605430595306615401,131072 /prefetch:1
  2⤵
  PID:5096
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=12 --mojo-platform-channel-handle=5056 --field-trial-handle=1812,i,16049690138676285529,3605430595306615401,131072 /prefetch:1
  2⤵
  PID:4992
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=13 --mojo-platform-channel-handle=5488 --field-trial-handle=1812,i,16049690138676285529,3605430595306615401,131072 /prefetch:1
  2⤵
  PID:4708

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:3324

Network

MITRE ATT&CK Enterprise v6

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\02b3db08-3e09-496e-b40c-93be796ac6d1.tmp

Filesize
6KB

MD5
9c5ef0a3eb9d300d82d6ed7d9c7ed6fc

SHA1
de4d0db76be4ce115a788bd0c620720dc9ad4149

SHA256
4dbc989b040dfebcc3ad02117c1eaec9d5a996ed061512ed1db70d1c1b26d5c3

SHA512
691777e8e37a87704db0766f33b37eda4608b78bc8c97e88d99cf1a5dd9acfd832b6db1488acd0f98f85702ea747fdc54fbe53d11e4ca6cddf41e89297669b5e

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

Filesize
504B

MD5
b5b8be5358f434c204f62daf7ab63ffb

SHA1
1fdc87361a9f62a9c58cb8a881a5638cb0507a3d

SHA256
af7db6635f93f5936822d6499ee8c136fa590d27eab240f3a7b086a188e4c8a6

SHA512
a207a45426ef32e96d5a1e0c9044c807209a9bd97ace87dce0d05da4753481474cfe6f7cd4a96a8a6baf98ea589d664df10768ed52487854511694e1ce570804

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

Filesize
538B

MD5
8c126cc3641ea3d652bbbe0b51bff522

SHA1
fc924a0b7b2910fdcc33776d5638917e87fcff1c

SHA256
8faeb89506aead9a51548084445ec97b46661fdfc3eaa4a37b69464a631bb926

SHA512
0b999dade99cea6b0a2be89de1d6f230a205dea62a90a099da2495ef74ae959883092d362c7a037ad4317c2257eff594d4b6e7fa8924eccdc0d8e72c2aa7afb2

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

Filesize
1KB

MD5
0e3264511a228c960df32a16a88914c2

SHA1
bd68cdab169c972139cb6dfa05d302958e6d6e13

SHA256
40e1681352805b196393f1cf5396e1400ad9f1224629d21b6e59c2cea23ef50f

SHA512
db5ddd0e963cde26ad43c4626d152cd239034fdf4762b97117524ee80d155e70817b5a7054f06a5d8bd68de6ae4487c72b524e96096cb46f128239bc2472b2fe

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

Filesize
5KB

MD5
8fa6d19d1cf460ce239e4111814bb947

SHA1
1a49bd790b16ba6c2d15170eb2d9ef70967ecb63

SHA256
9470df105edb9564fc546df4cf67a2dfa0412ea363ddb5ada695c5a237e0669c

SHA512
8b5f912801460f09278c572d35655d44a59518722a600207e6fcb7ea76941f177df0c95931ee2e7d9ab30032fef447d85ec192f6de8d222bfb3ba06ae1330e8d

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

Filesize
174KB

MD5
49c0bfdf225313aa03a10f19e7f8e122

SHA1
f01e72fc14bae89e71ed8663edc90de234ea3c42

SHA256
1683c7111bb8a55c8244da8b1d7cf8746a641f47f85dbd3673b8ba0b93c88ff6

SHA512
dbbc691b7a1fde7ff61d25b8cef5aa541148928f5254e1d74da2fc952509c5f16ca91a97b8cb1c0997d7476957412f2a3c55cbd1408f42e1fa60c99b7ca18a41

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