Analysis Overview
SHA256
af464d9f2c1bb1caf81f3cb1dc3d67c7d577fdca066d0c650b995c54e9d74e70
Threat Level: Known bad
The file cf45b2e62fb61b7f2757cf2d1beb08a6 was found to be: Known bad.
Malicious Activity Summary
Urelas family
Urelas
Checks computer location settings
Executes dropped EXE
UPX packed file
Deletes itself
Loads dropped DLL
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-16 22:50
Signatures
Urelas family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-16 22:50
Reported
2024-03-16 22:53
Platform
win10v2004-20240226-en
Max time kernel
157s
Max time network
153s
Command Line
Signatures
Urelas
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\ryelru.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\cf45b2e62fb61b7f2757cf2d1beb08a6.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\bapea.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bapea.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ryelru.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ejxuk.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cf45b2e62fb61b7f2757cf2d1beb08a6.exe
"C:\Users\Admin\AppData\Local\Temp\cf45b2e62fb61b7f2757cf2d1beb08a6.exe"
C:\Users\Admin\AppData\Local\Temp\bapea.exe
"C:\Users\Admin\AppData\Local\Temp\bapea.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\_vslite.bat" "
C:\Users\Admin\AppData\Local\Temp\ryelru.exe
"C:\Users\Admin\AppData\Local\Temp\ryelru.exe" OK
C:\Users\Admin\AppData\Local\Temp\ejxuk.exe
"C:\Users\Admin\AppData\Local\Temp\ejxuk.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\_vslite.bat" "
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| KR | 218.54.31.226:11110 | tcp | |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| KR | 1.234.83.146:11170 | tcp | |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| KR | 218.54.31.165:11110 | tcp | |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| JP | 133.242.129.155:11110 | tcp | |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | 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 | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.173.189.20.in-addr.arpa | udp |
Files
memory/3116-0-0x0000000000400000-0x0000000000524000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\bapea.exe
| MD5 | 433bf3f9b8f05aeb15ca57973814dc65 |
| SHA1 | 9426861f8fd6fd68b23ce037a713ce4f7ad3fe56 |
| SHA256 | 14d40da44766ea30a415967986f308f91d8e3973b3a6e76f9039c0911ac52d36 |
| SHA512 | 722741bec5cf964114112cc27de7045c9de0e5b4c6755cdedafe3d6061c88fc796c5cd6a77b4589c3a0bec02a576726ef2c02b525fd16b7f42de2ec208011003 |
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | f4bebc8008becd98fe31bd373af1d9e3 |
| SHA1 | 95ea7fe44330caa7451a0c58776caa51d58cf8a2 |
| SHA256 | 76ef04bee62deb52b1cb3257063be126d8a0330808ab655bede16bc86e968568 |
| SHA512 | d14b812fa6a01a48a80ca84115ccd2a9d462bda5197b3c06d8147af24ad9b9af0aa980b8cd89f116e700c051776b37c1c16317499975199ba2c3232b78a7c1d3 |
memory/3116-15-0x0000000000400000-0x0000000000524000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_vslite.bat
| MD5 | 94af0bedc86fabfb20a3ac847dbc48fe |
| SHA1 | aae6b2f051fd7a13dbde66b6d4823ea6d8b8c154 |
| SHA256 | 7bae0ce2061162e445660ee0454ccdd5e8e5aab39ab213ef74287135d46b77df |
| SHA512 | 2d2c80174c4a281ffb8686e808f24fa1a6ee7283bfe7c32f8506b84bb9c0aa611ba3c404945fb1031a3704e2dff784d48704103d0596085072544d4b28963b95 |
C:\Users\Admin\AppData\Local\Temp\ryelru.exe
| MD5 | 8764e3fd48076d45b90f239ed75b4884 |
| SHA1 | c6d655af1f983c6a4b549c1451f2f8336db5a555 |
| SHA256 | 18b60040282f75f5328099fe9f1f1b5fa17bd1932521ccc50544b49a9342b325 |
| SHA512 | cd8deca6143a6c15a0d9fba81d153d95ea3e7a00511d242ce50ed015bd6f9c598269bc00a93d058148e27259ebbda31816ccf4665d7a358f4c0982ddbd1816a8 |
memory/3812-25-0x0000000000400000-0x0000000000524000-memory.dmp
memory/4744-24-0x0000000000400000-0x0000000000524000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\ejxuk.exe
| MD5 | ae440e2dc7019b42193400e93e3518fb |
| SHA1 | 06463df1899e18a7be82ec1175df539061471076 |
| SHA256 | d651f9dd590548785e15a506dd34758597fabd38087910999ee7aae4b9afeaab |
| SHA512 | 4eb2eb7e3c68a2a42a165697086480561b7635915830bee6214611f878b60c1f95a3a8f43d8648ce9872224fcee2588b87475a4206c5e06a7d6ea970331f4452 |
memory/3964-37-0x0000000000400000-0x0000000000599000-memory.dmp
memory/3812-39-0x0000000000400000-0x0000000000524000-memory.dmp
memory/3964-40-0x00000000024E0000-0x00000000024E1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_vslite.bat
| MD5 | d706183367d32130c7f086ac59ffaa26 |
| SHA1 | 8aa08ef5db34905f51d8094fd012d75dfb6b3bc3 |
| SHA256 | fa1c12dfe14bb2a499446bc1cc88d135f38315de3f0f3b993b62755dc6a91c3d |
| SHA512 | ce42d1275f46f016d2593ba48ab1a811d3edf5f913193fe26f4ea9e5381422afcea192823fb76b129cd20c3f50a87817b807616765c483322cf310cb43ceec8c |
C:\Users\Admin\AppData\Local\Temp\gbp.ini
| MD5 | dbef593bccc2049f860f718cd6fec321 |
| SHA1 | e7e9f8235b4eb70aa99dd2c38009f2152575a8d0 |
| SHA256 | 30f820bb1ca6c20bcd77113c7377e01f31cdf0ec5b64864f22887d41a9bf3c7a |
| SHA512 | 3e87c661c343b72f5dff4587b99688dbf655be9d6d903a75151bd9f204f55858e90388591f660bcbded5278ef94e322bf3e7c57374c9b16fce1eef7082395a2a |
memory/3964-43-0x0000000000400000-0x0000000000599000-memory.dmp
memory/3964-45-0x00000000024E0000-0x00000000024E1000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-16 22:50
Reported
2024-03-16 22:53
Platform
win7-20240215-en
Max time kernel
148s
Max time network
119s
Command Line
Signatures
Urelas
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\joyfv.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\jirodo.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\juzol.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cf45b2e62fb61b7f2757cf2d1beb08a6.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cf45b2e62fb61b7f2757cf2d1beb08a6.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\joyfv.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\joyfv.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\jirodo.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\juzol.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\juzol.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\juzol.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\juzol.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\juzol.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\juzol.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\juzol.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\juzol.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\juzol.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\juzol.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\juzol.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\juzol.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\juzol.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cf45b2e62fb61b7f2757cf2d1beb08a6.exe
"C:\Users\Admin\AppData\Local\Temp\cf45b2e62fb61b7f2757cf2d1beb08a6.exe"
C:\Users\Admin\AppData\Local\Temp\joyfv.exe
"C:\Users\Admin\AppData\Local\Temp\joyfv.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\_vslite.bat" "
C:\Users\Admin\AppData\Local\Temp\jirodo.exe
"C:\Users\Admin\AppData\Local\Temp\jirodo.exe" OK
C:\Users\Admin\AppData\Local\Temp\juzol.exe
"C:\Users\Admin\AppData\Local\Temp\juzol.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\_vslite.bat" "
Network
| Country | Destination | Domain | Proto |
| KR | 218.54.31.226:11110 | tcp | |
| KR | 1.234.83.146:11170 | tcp | |
| KR | 218.54.31.165:11110 | tcp | |
| JP | 133.242.129.155:11110 | tcp |
Files
memory/2836-2-0x0000000000400000-0x0000000000524000-memory.dmp
\Users\Admin\AppData\Local\Temp\joyfv.exe
| MD5 | 973b29841de25f207b530337264cf6f2 |
| SHA1 | 8b388d50370c2d811d906a116d74f7e1bef508e3 |
| SHA256 | 695caedf41fc24f0bba407d4aaa9799b3d6ff74853d3d4c1d913e4f5c2995721 |
| SHA512 | c4643bf47c6223fbf1dbf7f3318ef01666b4cdb8d12cf10e14e879bd3c2144ee25cf65f0980148b60e340db4bd501ba039a626eb219afc96952fd0c8e8daa3ea |
\Users\Admin\AppData\Local\Temp\joyfv.exe
| MD5 | ea985d70a6187270f676151b533816dc |
| SHA1 | 72ca94cc4431a8d466db70002cdc408630cfd694 |
| SHA256 | 40e5b437c904b825f7a60a4fef6035cd9b74dbe23857003f87c9f08cbec42498 |
| SHA512 | 7940d27fd2975ed2e1276de27e4f2f0248dac245575753f07e41a07693024eb213087805a8a3e0272ce5c49d143e4ba11690ea68cb864726003d2754d74bd3fe |
memory/2836-21-0x0000000000400000-0x0000000000524000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | 631a185b769cb4bdf45a58d813301eb0 |
| SHA1 | 3cb647176f9e53be55d08f21999adbc924153c4e |
| SHA256 | 12369188820b2923beca0771dea9f539ac2e27bb4745d9083eb733a3a2eb3799 |
| SHA512 | 37e50e60659df586080e126d49e412f908931eda58a4e95878ea2e9efc851460145d53c889aec9016d2653e4742709624b10b698da60eb3b9db510d840927e12 |
memory/2836-12-0x0000000002FE0000-0x0000000003104000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_vslite.bat
| MD5 | 94af0bedc86fabfb20a3ac847dbc48fe |
| SHA1 | aae6b2f051fd7a13dbde66b6d4823ea6d8b8c154 |
| SHA256 | 7bae0ce2061162e445660ee0454ccdd5e8e5aab39ab213ef74287135d46b77df |
| SHA512 | 2d2c80174c4a281ffb8686e808f24fa1a6ee7283bfe7c32f8506b84bb9c0aa611ba3c404945fb1031a3704e2dff784d48704103d0596085072544d4b28963b95 |
memory/1244-22-0x0000000000400000-0x0000000000524000-memory.dmp
memory/1244-34-0x0000000003750000-0x0000000003874000-memory.dmp
memory/1244-33-0x0000000000400000-0x0000000000524000-memory.dmp
memory/2772-36-0x0000000000400000-0x0000000000524000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_vslite.bat
| MD5 | 48ff01f7b66b7b85248117aa627359b4 |
| SHA1 | 968ab16d95eb4dc6ac5863a8868a652b78015e61 |
| SHA256 | 303a26b3e5398ced0eaa717cbe5d1aa73d7fba78e24145173463969686548059 |
| SHA512 | 922b7d665cfdac62463e36a732119c649bf3ba1d40495e457362df17978c23914f6d47351cf9286d9260e7b5fd370b0676c238181f5681d191c0dcfd49dcfcf9 |
C:\Users\Admin\AppData\Local\Temp\juzol.exe
| MD5 | 878fad572893a0d39105db1311a6f1ad |
| SHA1 | 1a3e05fe236cf12f9ea7aecc790f28bc677ec2e7 |
| SHA256 | f2b2371d2cfeb5604e3b17545ef5e8e9d7525c60a2287fb0225a21f855e2f107 |
| SHA512 | 0749e433191218242f5bd5aa4fa4da62016fe6debe46576157370f1740209c455c91b9ec44cd646b797cf44e10556e09035625ee73d6149fe8708ec2415ee743 |
memory/2772-53-0x0000000003DE0000-0x0000000003F79000-memory.dmp
memory/2772-52-0x0000000000400000-0x0000000000524000-memory.dmp
memory/292-54-0x0000000000400000-0x0000000000599000-memory.dmp
memory/292-55-0x00000000003B0000-0x00000000003B1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\gbp.ini
| MD5 | dbef593bccc2049f860f718cd6fec321 |
| SHA1 | e7e9f8235b4eb70aa99dd2c38009f2152575a8d0 |
| SHA256 | 30f820bb1ca6c20bcd77113c7377e01f31cdf0ec5b64864f22887d41a9bf3c7a |
| SHA512 | 3e87c661c343b72f5dff4587b99688dbf655be9d6d903a75151bd9f204f55858e90388591f660bcbded5278ef94e322bf3e7c57374c9b16fce1eef7082395a2a |
memory/292-59-0x0000000000400000-0x0000000000599000-memory.dmp
memory/2772-61-0x0000000003DE0000-0x0000000003F79000-memory.dmp
memory/292-62-0x00000000003B0000-0x00000000003B1000-memory.dmp