hxxps://nostr[.]build

Analysis

max time kernel
21s
max time network
60s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
30-05-2023 12:39

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General

Target

https://nostr.build

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1736	chrome.exe
1736	chrome.exe

Suspicious use of AdjustPrivilegeToken 22 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe
Token: SeShutdownPrivilege	1736	chrome.exe

Suspicious use of FindShellTrayWindow 34 IoCs

pid	Process
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe

Suspicious use of SendNotifyMessage 32 IoCs

pid	Process
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe
1736	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 1196	1736	chrome.exe	28
PID 1736 wrote to memory of 1196	1736	chrome.exe	28
PID 1736 wrote to memory of 1196	1736	chrome.exe	28
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 384	1736	chrome.exe	30
PID 1736 wrote to memory of 872	1736	chrome.exe	31
PID 1736 wrote to memory of 872	1736	chrome.exe	31
PID 1736 wrote to memory of 872	1736	chrome.exe	31
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32
PID 1736 wrote to memory of 896	1736	chrome.exe	32

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'" https://nostr.build
1⤵
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1736
- 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=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef6c19758,0x7fef6c19768,0x7fef6c19778
  2⤵
  PID:1196
- 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=1164 --field-trial-handle=1340,i,16771149594065161693,14934445651978666802,131072 /prefetch:2
  2⤵
  PID:384
- 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=1548 --field-trial-handle=1340,i,16771149594065161693,14934445651978666802,131072 /prefetch:8
  2⤵
  PID:872
- 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=1640 --field-trial-handle=1340,i,16771149594065161693,14934445651978666802,131072 /prefetch:8
  2⤵
  PID:896
- 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=2212 --field-trial-handle=1340,i,16771149594065161693,14934445651978666802,131072 /prefetch:1
  2⤵
  PID:1200
- 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=2200 --field-trial-handle=1340,i,16771149594065161693,14934445651978666802,131072 /prefetch:1
  2⤵
  PID:772
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1424 --field-trial-handle=1340,i,16771149594065161693,14934445651978666802,131072 /prefetch:2
  2⤵
  PID:2380

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:800

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\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
62KB

MD5
3ac860860707baaf32469fa7cc7c0192

SHA1
c33c2acdaba0e6fa41fd2f00f186804722477639

SHA256
d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

SHA512
d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
304B

MD5
3195174e774ab8415a75e997e64eb012

SHA1
091bbf774a3abaf060d31916d9456e0b605eb12c

SHA256
2797e320ad235386dd3a03c1f84d33a7c5911f3db2740e74dd43316efc39e282

SHA512
1db6dc521bef22e6e48afbc741427db34e3be5c31df8596abcc8310137b9c0ca9abd36e57c25ce3e7ddcce9c14ef7ce859d3acc7eb12a43df7f877f5d128bf84

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

Filesize
264KB

MD5
f50f89a0a91564d0b8a211f8921aa7de

SHA1
112403a17dd69d5b9018b8cede023cb3b54eab7d

SHA256
b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

SHA512
bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

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

Filesize
4KB

MD5
87f6671bb4847a1431faf8fc8fe5244a

SHA1
e59c3ae447ce098a43fdd7378c791882e7fb7801

SHA256
f2167991d1e6bd0d6cee83995b0ce055b2112ee641a6910811591657c9cd4b9e

SHA512
f9005c4204da66911c992a169d7c377c35b4c9942ed45be610f9412945c40ed9aa56770ce2c47065c5fabc676b428c56529020f5cba7113a235b0e986228c88d

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\000004.dbtmp

Filesize
16B

MD5
6752a1d65b201c13b62ea44016eb221f

SHA1
58ecf154d01a62233ed7fb494ace3c3d4ffce08b

SHA256
0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

SHA512
9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar1721.tmp

Filesize
164KB

MD5
4ff65ad929cd9a367680e0e5b1c08166

SHA1
c0af0d4396bd1f15c45f39d3b849ba444233b3a2

SHA256
c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

SHA512
f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

Download Submit