Analysis
-
max time kernel
71s -
max time network
73s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
09/05/2023, 21:48
Static task
static1
Behavioral task
behavioral1
Sample
PolarZ.dll
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
PolarZ.dll
Resource
win10v2004-20230220-en
General
-
Target
PolarZ.dll
-
Size
2.2MB
-
MD5
1354771131052195620da761fc562675
-
SHA1
9956c18cecb6cb5c5fdffb19a22f950f4fe29d52
-
SHA256
dd64b560c1782039e420d2d22d51c77769d58bbf2326c0fb63c810cd4ab1a287
-
SHA512
704d7d9c16cec9b7a828aca600520567b76c78ee57eeeb3271fcfa917fa7705f3168e850f3f542123a189d421d3f703a4ef551231ab32bd00e1805a1ebd41372
-
SSDEEP
49152:bRAv//AGqXi0dCkqKOjZIm/wsuA2eFfUxwgo8+q1g8r0JNaSyETyd:bRAv//AGxcmt/
Malware Config
Signatures
-
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows\CurrentVersion\Run chrome.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 1760 2000 WerFault.exe 26 -
Enumerates system info in registry 2 TTPs 3 IoCs
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 1496 chrome.exe 1496 chrome.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe Token: SeShutdownPrivilege 1496 chrome.exe -
Suspicious use of FindShellTrayWindow 35 IoCs
pid Process 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe -
Suspicious use of SendNotifyMessage 32 IoCs
pid Process 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe 1496 chrome.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2000 wrote to memory of 1760 2000 rundll32.exe 27 PID 2000 wrote to memory of 1760 2000 rundll32.exe 27 PID 2000 wrote to memory of 1760 2000 rundll32.exe 27 PID 1496 wrote to memory of 1268 1496 chrome.exe 29 PID 1496 wrote to memory of 1268 1496 chrome.exe 29 PID 1496 wrote to memory of 1268 1496 chrome.exe 29 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 848 1496 chrome.exe 31 PID 1496 wrote to memory of 656 1496 chrome.exe 32 PID 1496 wrote to memory of 656 1496 chrome.exe 32 PID 1496 wrote to memory of 656 1496 chrome.exe 32 PID 1496 wrote to memory of 1940 1496 chrome.exe 33 PID 1496 wrote to memory of 1940 1496 chrome.exe 33 PID 1496 wrote to memory of 1940 1496 chrome.exe 33 PID 1496 wrote to memory of 1940 1496 chrome.exe 33 PID 1496 wrote to memory of 1940 1496 chrome.exe 33 PID 1496 wrote to memory of 1940 1496 chrome.exe 33 PID 1496 wrote to memory of 1940 1496 chrome.exe 33 PID 1496 wrote to memory of 1940 1496 chrome.exe 33 PID 1496 wrote to memory of 1940 1496 chrome.exe 33 PID 1496 wrote to memory of 1940 1496 chrome.exe 33 PID 1496 wrote to memory of 1940 1496 chrome.exe 33 PID 1496 wrote to memory of 1940 1496 chrome.exe 33 PID 1496 wrote to memory of 1940 1496 chrome.exe 33 PID 1496 wrote to memory of 1940 1496 chrome.exe 33 PID 1496 wrote to memory of 1940 1496 chrome.exe 33 PID 1496 wrote to memory of 1940 1496 chrome.exe 33
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\PolarZ.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2000 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2000 -s 2122⤵
- Program crash
PID:1760
-
-
C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe"1⤵
- Adds Run key to start application
- 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:1496 -
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,0x7fefb059758,0x7fefb059768,0x7fefb0597782⤵PID:1268
-
-
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=1216 --field-trial-handle=1372,i,10813205629963174875,3402220285165858725,131072 /prefetch:22⤵PID:848
-
-
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=1528 --field-trial-handle=1372,i,10813205629963174875,3402220285165858725,131072 /prefetch:82⤵PID:656
-
-
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=1584 --field-trial-handle=1372,i,10813205629963174875,3402220285165858725,131072 /prefetch:82⤵PID:1940
-
-
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=2260 --field-trial-handle=1372,i,10813205629963174875,3402220285165858725,131072 /prefetch:12⤵PID:1036
-
-
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=2292 --field-trial-handle=1372,i,10813205629963174875,3402220285165858725,131072 /prefetch:12⤵PID:524
-
-
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=1512 --field-trial-handle=1372,i,10813205629963174875,3402220285165858725,131072 /prefetch:22⤵PID:1576
-
-
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=8 --mojo-platform-channel-handle=1212 --field-trial-handle=1372,i,10813205629963174875,3402220285165858725,131072 /prefetch:12⤵PID:2064
-
-
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=1376 --field-trial-handle=1372,i,10813205629963174875,3402220285165858725,131072 /prefetch:82⤵PID:2092
-
-
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=4000 --field-trial-handle=1372,i,10813205629963174875,3402220285165858725,131072 /prefetch:82⤵PID:2100
-
-
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=3876 --field-trial-handle=1372,i,10813205629963174875,3402220285165858725,131072 /prefetch:12⤵PID:2260
-
-
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=3216 --field-trial-handle=1372,i,10813205629963174875,3402220285165858725,131072 /prefetch:12⤵PID:2456
-
-
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:1704
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
149KB
MD5ff876ed562422b2708a367210600bfc6
SHA19b4eb8d2cd5e8d46465731a97280eee4409478de
SHA256e4d63e52e038902f26ab6f3ed71d16ad0f8fe92f4dc7d539ac5cb4f713c8bdd4
SHA51266366f75b8053271d178180a7f3e64583fd2ff8d4f9b46def54aa61c0f6d21bd77ab6798ce8728db7543f5c43e1b089b09bd097d11ce950906a5e601044b6969
-
Filesize
144B
MD5dd1e5696266c85fae0edef8b5dee0553
SHA109be52ac7d026e0d01f5cf5e11f6dde9e5662823
SHA2562a62d5af04707c1d8258bf0abade805e5c42725f842ed4bdfad475caee2629e4
SHA5127207b9b6c2a25cf6b06c27fc2aad87c22bc00b2b39a02983c456fd06c9b93eadf6fe6c6ed61d14b2ea12df85fff4420e9ee560fd2ecfe5de774d5835a49740fa
-
Filesize
264KB
MD5f50f89a0a91564d0b8a211f8921aa7de
SHA1112403a17dd69d5b9018b8cede023cb3b54eab7d
SHA256b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec
SHA512bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58
-
Filesize
16B
MD56752a1d65b201c13b62ea44016eb221f
SHA158ecf154d01a62233ed7fb494ace3c3d4ffce08b
SHA2560861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd
SHA5129cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389
-
Filesize
527B
MD5990fd0700699acc2a7e0699a457b0160
SHA1d7b86044d886d2e21ed18d5de99d91fb6fdb364a
SHA2560cc1f124e56cdb131e49222f5d80ac2f3d57a50dd36f932da11a621940bfd4a5
SHA51228a4dcd511fc1e96a7c151c32376ddf0e3fe371d8c14a9e8d8eb8eb1049336d5dca3e070748e6eba48dc354e94741375a7707ca49740e28c98415af011c67950
-
Filesize
4KB
MD52c103a8cf5702ec4ff2348d7d00d9fba
SHA1684c462bcc2ecec7e693eb563ca4b2504f351d2b
SHA256d2650d657c44b211febd4c3f74900b6f5656b64043f67cd04e1d869d877e485e
SHA5129fa82cd396b82dca385544bde212a37716c118e198d25dae10fd7ce22fcfc18cba4b3cb148113414077c42961970e82a5d516f8d377a8222bac8cfbf2081b22d
-
Filesize
4KB
MD5fd68856f634f436103f2b682cdf901f2
SHA1d59aea34cf01bfa300f3df90981fa32f2b50eec7
SHA25646911873596b171892dec41f42d71f0af99baddc7edada0962ab25a152d07e3a
SHA512dd4bb7b8c65f9e3ad4b1de74893ff4d1380a23bf341e2664466f1e449a1c0dfb46d50445deb146c5ef59cac0a9d8d85737974c70e16d6d0183f18d63a01174bb
-
Filesize
149KB
MD567b0b41e230d2d719a9551fb6c7fcabd
SHA107a8fd7f7fb873ed0a509f87d7ab17ec5834af10
SHA2562a755878f5f972f8d99b52f11113120059f9ebddbaa26e25fa3ff10906a8151a
SHA512db87cc694a585c971b6f3e662a202783e314956a8cae9a1b72787180a362ea290bfa6ff7b8225785a5b244d87054b3d03da04b3e10fe43a387e148a4894f4319