Analysis
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max time kernel
54s -
max time network
55s -
platform
windows10-ltsc 2021_x64 -
resource
win10ltsc2021-20241023-en -
resource tags
arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system -
submitted
23-11-2024 17:42
Static task
static1
General
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Target
PORQUEPUTASYANOSIRVE.7z
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Size
923KB
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MD5
d757d40193d311216967491e36fc2ba4
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SHA1
2dd90fa74c489da4f85bdf301053230b480a31fa
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SHA256
8a31693ddf8924f144ba19a8802766188bd13f1ed7eea7c226eb0e01a9e47685
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SHA512
9be26ab222457605eea0c42a4dbcfa80154cb384e6abf0db6a010fcca172a0eda8792b9e3fff9d67717f095f67448d9310c7e049f7fea8dd5907afe8bd462921
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SSDEEP
24576:q9gl2kNvEE7GFdGqXsShFTAkBojKLUI56eGk:46vbIGqXscAkW+h1
Malware Config
Extracted
quasar
1.4.1
Office04
azxq0ap.localto.net:3425
e51e2b65-e963-4051-9736-67d57ed46798
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encryption_key
AEA258EF65BF1786F0F767C0BE2497ECC304C46F
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 2 IoCs
Processes:
resource yara_rule behavioral1/files/0x00280000000450a0-2.dat family_quasar behavioral1/memory/1756-5-0x0000000000210000-0x0000000000534000-memory.dmp family_quasar -
Executes dropped EXE 2 IoCs
Processes:
PORQUEPUTASYANOSIRVE.exeClient.exepid Process 1756 PORQUEPUTASYANOSIRVE.exe 1640 Client.exe -
Drops file in Windows directory 1 IoCs
Processes:
chrome.exedescription ioc Process File opened for modification C:\Windows\SystemTemp chrome.exe -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
chrome.exedescription 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
Processes:
chrome.exedescription 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 = "133768574234932925" chrome.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid Process 4064 schtasks.exe 4544 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
chrome.exepid Process 828 chrome.exe 828 chrome.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
7zFM.exepid Process 1004 7zFM.exe -
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
Processes:
chrome.exepid Process 828 chrome.exe 828 chrome.exe 828 chrome.exe -
Suspicious use of AdjustPrivilegeToken 29 IoCs
Processes:
7zFM.exePORQUEPUTASYANOSIRVE.exeClient.exechrome.exedescription pid Process Token: SeRestorePrivilege 1004 7zFM.exe Token: 35 1004 7zFM.exe Token: SeSecurityPrivilege 1004 7zFM.exe Token: SeDebugPrivilege 1756 PORQUEPUTASYANOSIRVE.exe Token: SeDebugPrivilege 1640 Client.exe Token: SeShutdownPrivilege 828 chrome.exe Token: SeCreatePagefilePrivilege 828 chrome.exe Token: SeShutdownPrivilege 828 chrome.exe Token: SeCreatePagefilePrivilege 828 chrome.exe Token: SeShutdownPrivilege 828 chrome.exe Token: SeCreatePagefilePrivilege 828 chrome.exe Token: SeShutdownPrivilege 828 chrome.exe Token: SeCreatePagefilePrivilege 828 chrome.exe Token: SeShutdownPrivilege 828 chrome.exe Token: SeCreatePagefilePrivilege 828 chrome.exe Token: SeShutdownPrivilege 828 chrome.exe Token: SeCreatePagefilePrivilege 828 chrome.exe Token: SeShutdownPrivilege 828 chrome.exe Token: SeCreatePagefilePrivilege 828 chrome.exe Token: SeShutdownPrivilege 828 chrome.exe Token: SeCreatePagefilePrivilege 828 chrome.exe Token: SeShutdownPrivilege 828 chrome.exe Token: SeCreatePagefilePrivilege 828 chrome.exe Token: SeShutdownPrivilege 828 chrome.exe Token: SeCreatePagefilePrivilege 828 chrome.exe Token: SeShutdownPrivilege 828 chrome.exe Token: SeCreatePagefilePrivilege 828 chrome.exe Token: SeShutdownPrivilege 828 chrome.exe Token: SeCreatePagefilePrivilege 828 chrome.exe -
Suspicious use of FindShellTrayWindow 28 IoCs
Processes:
7zFM.exechrome.exepid Process 1004 7zFM.exe 1004 7zFM.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe -
Suspicious use of SendNotifyMessage 24 IoCs
Processes:
chrome.exepid Process 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe 828 chrome.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Client.exepid Process 1640 Client.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
PORQUEPUTASYANOSIRVE.exeClient.exechrome.exedescription pid Process procid_target PID 1756 wrote to memory of 4064 1756 PORQUEPUTASYANOSIRVE.exe 91 PID 1756 wrote to memory of 4064 1756 PORQUEPUTASYANOSIRVE.exe 91 PID 1756 wrote to memory of 1640 1756 PORQUEPUTASYANOSIRVE.exe 93 PID 1756 wrote to memory of 1640 1756 PORQUEPUTASYANOSIRVE.exe 93 PID 1640 wrote to memory of 4544 1640 Client.exe 94 PID 1640 wrote to memory of 4544 1640 Client.exe 94 PID 828 wrote to memory of 1628 828 chrome.exe 98 PID 828 wrote to memory of 1628 828 chrome.exe 98 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 788 828 chrome.exe 99 PID 828 wrote to memory of 1344 828 chrome.exe 100 PID 828 wrote to memory of 1344 828 chrome.exe 100 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 PID 828 wrote to memory of 2992 828 chrome.exe 101 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Program Files\7-Zip\7zFM.exe"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\PORQUEPUTASYANOSIRVE.7z"1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1004
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C:\Users\Admin\Desktop\PORQUEPUTASYANOSIRVE.exe"C:\Users\Admin\Desktop\PORQUEPUTASYANOSIRVE.exe"1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1756 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:4064
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C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1640 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:4544
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C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe"1⤵
- Drops file in Windows directory
- 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:828 -
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:4 --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=123.0.6312.123 --initial-client-data=0x220,0x224,0x228,0x1fc,0x22c,0x7ffe95dccc40,0x7ffe95dccc4c,0x7ffe95dccc582⤵PID:1628
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C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=2036,i,1689911938516833697,2372306160851381689,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=2032 /prefetch:22⤵PID:788
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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 --no-appcompat-clear --field-trial-handle=1868,i,1689911938516833697,2372306160851381689,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=2172 /prefetch:32⤵PID:1344
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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=service --no-appcompat-clear --field-trial-handle=2272,i,1689911938516833697,2372306160851381689,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=2488 /prefetch:82⤵PID:2992
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C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=3152,i,1689911938516833697,2372306160851381689,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=3168 /prefetch:12⤵PID:1744
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C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3176,i,1689911938516833697,2372306160851381689,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=3336 /prefetch:12⤵PID:1816
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C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --field-trial-handle=4600,i,1689911938516833697,2372306160851381689,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=4584 /prefetch:12⤵PID:3348
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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 --no-appcompat-clear --field-trial-handle=4840,i,1689911938516833697,2372306160851381689,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=4852 /prefetch:82⤵PID:3648
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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 --no-appcompat-clear --field-trial-handle=4992,i,1689911938516833697,2372306160851381689,262144 --variations-seed-version=20241022-180310.361000 --mojo-platform-channel-handle=5044 /prefetch:82⤵PID:2592
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C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe"C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe"1⤵PID:2128
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc1⤵PID:4368
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
649B
MD5f03a88fdb1f5065db2a26e34f9689259
SHA19dcac29afc751328b2b074c26369cf3e62e0c90e
SHA2565d1bd09e193eaef6bb9e176d1d91d800a4264fe7e15a9ce8e0fc4615f1d3aa89
SHA5125a7d34af5d9901fc085cbec78fc8d65b31fb1d9396d13b51c089d4ec060354984c120e64ebdcac04063fb30ebc99eeaa4a83fc14dfcd6fb6fb9c04cd71d79b3c
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Filesize
2B
MD5d751713988987e9331980363e24189ce
SHA197d170e1550eee4afc0af065b78cda302a97674c
SHA2564f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
SHA512b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af
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Filesize
356B
MD5b7fce2efaa0a4abfad8a84f019d1fa9a
SHA1c70f60b3f015014893b3fdb864c6f873c0da330e
SHA256bece1c6fcf2e764f596bcdc1e2a66f5e2a89641cee9cf99c62c06447b9cf5b1a
SHA512af73a1efc5f3b8e6da38eeb3127d2ec5e7d3edda6421fab468b258dd9005df506121c35145b5347adabae603b230e6cbe427fdda184f6916891b1b8826691d05
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Filesize
9KB
MD52795644f804337ea3a4d0216e07d346b
SHA11a15e9fbe27ff2888a8de442d2126e7244f5eae7
SHA25648601386d62e85ce0cc43211643247b02bf68c8263cd0ee11bbdecedbfaec05a
SHA51280bf5d050d1a72f0dbc77ed945409cc65459ff75d1ebb26a8ea1ed9c29a857b5644f7c5e7a57023e33068b8f2e421546a278d82287a4738388078aa4f94130da
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Filesize
236KB
MD5f54804bd8d1689458ae79a6d7d3d4c7b
SHA147b7bb8b66baa215d663fbdb8c9b90b818a45660
SHA256d891dcc07aad7121761deeecd84933910a8ccf797c1d33d62f6ff810d483dee2
SHA5123835f4d5911d5698b5c0587ae1d859ac99d94320a7603e78d533c9717abc9600c089ecadb4d983240875d5bcd03b1366a82ae65c558ff86fa053f4a094a23f79
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Filesize
3.1MB
MD573565f33ed4d8741291cbb30409f1727
SHA14d3a54b28f3ea80f884a25905e27165bdc353109
SHA256aafe953e627f9e733e101d7211f0c9594dbdf82ec4019b2c9aa361cbc478f0de
SHA512d897b098ddcdc94ac9177bc9a90b700c8b9a7cfafa74f729beebf74a094f76a7bd69e764711bdfedcdd231465daef16e937676e391ca2c010df03fecc863b583
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MD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e