Analysis Overview
SHA256
b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd
Threat Level: Known bad
The file b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd was found to be: Known bad.
Malicious Activity Summary
Quasar RAT
Detects executables containing common artifacts observed in infostealers
Detects Windows executables referencing non-Windows User-Agents
Quasar family
Quasar payload
Detects Windows executables referencing non-Windows User-Agents
Detects executables containing common artifacts observed in infostealers
Checks computer location settings
Looks up external IP address via web service
Enumerates physical storage devices
Program crash
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Runs ping.exe
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-27 01:59
Signatures
Detects Windows executables referencing non-Windows User-Agents
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects executables containing common artifacts observed in infostealers
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Quasar family
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-27 01:59
Reported
2024-05-27 02:01
Platform
win7-20240508-en
Max time kernel
119s
Max time network
120s
Command Line
Signatures
Quasar RAT
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects Windows executables referencing non-Windows User-Agents
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects executables containing common artifacts observed in infostealers
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe
"C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\x3Lid85K0rQq.bat" "
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 1464
C:\Windows\SysWOW64\chcp.com
chcp 65001
C:\Windows\SysWOW64\PING.EXE
ping -n 10 localhost
C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe
"C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| CN | 121.43.158.106:4782 | tcp | |
| US | 8.8.8.8:53 | yc01h.11ychos.xyz | udp |
Files
memory/2400-0-0x0000000074C6E000-0x0000000074C6F000-memory.dmp
memory/2400-1-0x00000000000B0000-0x000000000013C000-memory.dmp
memory/2400-2-0x0000000074C60000-0x000000007534E000-memory.dmp
memory/2400-4-0x0000000074C6E000-0x0000000074C6F000-memory.dmp
memory/2400-5-0x0000000074C60000-0x000000007534E000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\x3Lid85K0rQq.bat
| MD5 | 1ff0e8236a1065cfde659e7e0fd99814 |
| SHA1 | ec3f3e108dc0b4f03720981cf24cea010154cc65 |
| SHA256 | bfcd187bfeeb9e3818c176962d12f5c11e9fc013926c2e3d33281eaa6aebbf81 |
| SHA512 | 66a2ef46b9203b33d958f5cf1e0949b95c5e18c2aac9328daee1b4d26153d74af4ae8dd5988d8fcad0809af403d52d607b14048a09d00d2ee4ba829831d47765 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-27 01:59
Reported
2024-05-27 02:01
Platform
win10v2004-20240508-en
Max time kernel
147s
Max time network
151s
Command Line
Signatures
Quasar RAT
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
| N/A | ip-api.com | N/A | N/A |
| N/A | ip-api.com | N/A | N/A |
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects Windows executables referencing non-Windows User-Agents
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects executables containing common artifacts observed in infostealers
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
| N/A | ip-api.com | N/A | N/A |
| N/A | ip-api.com | N/A | N/A |
Enumerates physical storage devices
Program crash
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe | N/A |
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe
"C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe"
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3772,i,11746347647270949551,7786733067759450703,262144 --variations-seed-version --mojo-platform-channel-handle=1268 /prefetch:8
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EHh1Q4esfuPG.bat" "
C:\Windows\SysWOW64\chcp.com
chcp 65001
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4400 -ip 4400
C:\Windows\SysWOW64\PING.EXE
ping -n 10 localhost
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4400 -s 2116
C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe
"C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\UVRbVt1O94sx.bat" "
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 2468 -ip 2468
C:\Windows\SysWOW64\chcp.com
chcp 65001
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2468 -s 2088
C:\Windows\SysWOW64\PING.EXE
ping -n 10 localhost
C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe
"C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DH6w4DvF07f7.bat" "
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 452 -ip 452
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 452 -s 2316
C:\Windows\SysWOW64\chcp.com
chcp 65001
C:\Windows\SysWOW64\PING.EXE
ping -n 10 localhost
C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe
"C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sKjbqxzRbT0w.bat" "
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1380 -ip 1380
C:\Windows\SysWOW64\chcp.com
chcp 65001
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1380 -s 2308
C:\Windows\SysWOW64\PING.EXE
ping -n 10 localhost
C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe
"C:\Users\Admin\AppData\Local\Temp\b923f253757397be0e1b86c92a0854d0eef612fcc3c99fd5be8f96e309d8d5fd.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | 1.112.95.208.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| CN | 121.43.158.106:4782 | tcp | |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | yc01h.11ychos.xyz | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| CN | 121.43.158.106:4782 | tcp | |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | yc01h.11ychos.xyz | udp |
| US | 8.8.8.8:53 | 45.19.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| CN | 121.43.158.106:4782 | tcp | |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.173.189.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | yc01h.11ychos.xyz | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| CN | 121.43.158.106:4782 | tcp | |
| US | 8.8.8.8:53 | yc01h.11ychos.xyz | udp |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| CN | 121.43.158.106:4782 | tcp |
Files
memory/4400-0-0x000000007458E000-0x000000007458F000-memory.dmp
memory/4400-1-0x0000000000C00000-0x0000000000C8C000-memory.dmp
memory/4400-2-0x0000000005D40000-0x00000000062E4000-memory.dmp
memory/4400-3-0x00000000056B0000-0x0000000005742000-memory.dmp
memory/4400-4-0x0000000074580000-0x0000000074D30000-memory.dmp
memory/4400-5-0x0000000005790000-0x00000000057F6000-memory.dmp
memory/4400-6-0x00000000064F0000-0x0000000006502000-memory.dmp
memory/4400-7-0x0000000006B70000-0x0000000006BAC000-memory.dmp
memory/4400-8-0x0000000007480000-0x0000000007A98000-memory.dmp
memory/4400-9-0x0000000006F20000-0x0000000006F70000-memory.dmp
memory/4400-10-0x0000000006EF0000-0x0000000006EFA000-memory.dmp
memory/4400-11-0x0000000007320000-0x000000000733A000-memory.dmp
memory/4400-12-0x0000000007AA0000-0x0000000007B52000-memory.dmp
memory/4400-14-0x000000007458E000-0x000000007458F000-memory.dmp
memory/4400-15-0x0000000074580000-0x0000000074D30000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\EHh1Q4esfuPG.bat
| MD5 | 5156073719ee8d89bb1f9dae1f69d665 |
| SHA1 | d843de8b844ece33ca02a487a968d69cd5ad12fd |
| SHA256 | bad92167a1161d9bd4eb9a87c55f8ca74b9a0fece7f91f007f09a1a37351f489 |
| SHA512 | a278b23afc497909d61942f8ba743eac7815c3942b61d4549e7b85c04269d4c2cfb9b76aeb95f70a28d76bd516bb63c208db31c9fdecdedeccc2f070ec3ff621 |
memory/4400-20-0x0000000074580000-0x0000000074D30000-memory.dmp
memory/2468-21-0x0000000074550000-0x00000000745FB000-memory.dmp
C:\Users\Admin\AppData\Roaming\Logs\05-27-2024
| MD5 | e16591a18c3fe3e815e34e769f800474 |
| SHA1 | f91521a294b8864bc7442eadb7dbe5b59592a748 |
| SHA256 | 2a6c089e0bc141f993ffa1cffcdcb70703b46a15c9b6277e077181d69183455a |
| SHA512 | 65b555975dbecc2a028bbf75cecc450dbd39ce7d0329c0af7b1aaa684fa74085533347cfaa49d7e7be086366f6a7735daa851e94e4223b43c2a1050c6ccbc7d6 |
memory/2468-24-0x0000000074550000-0x00000000745FB000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\UVRbVt1O94sx.bat
| MD5 | b0e70bf44be90f9fddfe7c1943217b00 |
| SHA1 | d9a39368b3402d415c7f3fef19149ab15e2ed403 |
| SHA256 | 6b19b9a3e373010accf4cd66906da98bc8a2c9d9b0a5611ddf0df5982c80daf3 |
| SHA512 | 8581e00a77ab18b2c97b976265cf317b19f82ec8a51011ffdaaac933aeae49139c4c95c75a6399fd7aefd5663f03874eedf08d5fec46a480e538df4de580dcbb |
memory/2468-29-0x0000000074550000-0x00000000745FB000-memory.dmp
C:\Users\Admin\AppData\Roaming\Logs\05-27-2024
| MD5 | 3962498ccfc3fc205f9a3c0bd4b138a6 |
| SHA1 | 79595531b0a3bf4a2dd4ef83998cfa536e02e082 |
| SHA256 | 1f6eaaf1ae9440fafbbdc292178dfdf5fdf31be07c7cb9ee2a5bc9113a14a43b |
| SHA512 | 65e15d306786909b6d84f72a62fe2d91345a3629b73fc29c0c643527bc7a9ce79b02ee666ee77d04fffdd69310d37c04f82c3ac214c86b85c8979332d32995a1 |
C:\Users\Admin\AppData\Local\Temp\DH6w4DvF07f7.bat
| MD5 | 9285bb39cc34c39435f48165ceb668aa |
| SHA1 | 7f7eea270489ce558bc4c8aa5207ba4f90322780 |
| SHA256 | b2b2504f8e06369a84d9d4ffe68dc0838f7198b0d95ce4dc2463c1fbf48c5572 |
| SHA512 | bbeba74c7bd6ecdceed289ca6c727f1152de01356011127b19411caed0dab7d29cf7f3c77b1eade19e55adb46c413ff1a6832889863d81812a6ea8012cc202c6 |
C:\Users\Admin\AppData\Roaming\Logs\05-27-2024
| MD5 | ff8c82f07f523e5841fa29bdc135ddf5 |
| SHA1 | 18e9adc5191af43d0709a6452c435511b2539d74 |
| SHA256 | 039f8261c299769ea234eb54306d2c2137266071caa4a669f9fca946f7bd6b9e |
| SHA512 | d361bce22a102d583b5ea4787cff955b2d5c5f7e784a196055066c5c20c52a5d11a5bcba7f396895fba2536f651eafd97e1bc4b5f88c23a38c60613aee5738ae |
C:\Users\Admin\AppData\Local\Temp\sKjbqxzRbT0w.bat
| MD5 | 9e92ca615a3e11cd51c58330f82c35db |
| SHA1 | 7166c2498f91a914f0b6b2304bda349ab8fac1c0 |
| SHA256 | 9b86a6f4ff914906de83e819cace55c47f27482cd47153c2d67374e7907f5288 |
| SHA512 | 3d872676a7b4fc4ac39b4e78e9eaf8a0f4a848213f2707c94352f654668b6dbdb28e26be576503607380f8715da82ed949441e1997e841f9709b2b7bf938b975 |
C:\Users\Admin\AppData\Roaming\Logs\05-27-2024
| MD5 | c08cfba081e1420da4894cff7a847c4b |
| SHA1 | dee944abe812697c5a7aa307b12ce8fbc0b561f2 |
| SHA256 | b1e83ed8d369d9110a4bffb93c96c23b33855ab95bfea2290640d39cfacc6f35 |
| SHA512 | 0ba8b3070af4b1f5c28e42b6f5c0adb33593f6a2ca62fa9f94769c29d74247b5c7e4cbdc042502fa1e28b818bce3b5216525020523e5a5c9da2dfd66cd900779 |