Analysis Overview
SHA256
dc7257b4ba127743bb0096752f8872bd0621c9285379642465b2c10f366f0ca7
Threat Level: Known bad
The file 8e5032f0d2aa4f8ef96335b037a29322_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Urelas
Loads dropped DLL
Checks computer location settings
Deletes itself
Executes dropped EXE
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-12 10:04
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-12 10:04
Reported
2024-08-12 10:07
Platform
win7-20240708-en
Max time kernel
121s
Max time network
122s
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\biudfw.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8e5032f0d2aa4f8ef96335b037a29322_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\8e5032f0d2aa4f8ef96335b037a29322_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\biudfw.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\8e5032f0d2aa4f8ef96335b037a29322_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8e5032f0d2aa4f8ef96335b037a29322_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\biudfw.exe
"C:\Users\Admin\AppData\Local\Temp\biudfw.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "
Network
| Country | Destination | Domain | Proto |
| KR | 218.54.47.76:11120 | tcp | |
| KR | 218.54.47.74:11150 | tcp | |
| KR | 218.54.47.76:11170 | tcp | |
| KR | 218.54.47.77:11150 | tcp |
Files
memory/2652-0-0x00000000012F0000-0x0000000001325000-memory.dmp
\Users\Admin\AppData\Local\Temp\biudfw.exe
| MD5 | 58d2175ebc74852bddcfb5b6b6866431 |
| SHA1 | cfca38d0ec7391c159ca8d16719c2d43754eaf38 |
| SHA256 | a539879fcb03a9b84b626b561a3c18c673bdf8ca3725e6bcfe366275b62995d7 |
| SHA512 | 072604c46ae01295689f71b60c4ca93ad4ec5d3bf05f4400c1beb3dae3a3506cb7401c62c5534395f1c7b7fe3bcb41def6c48f73da549d9f004140ffc6ea7ab0 |
memory/2652-16-0x00000000005F0000-0x0000000000625000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\sanfdr.bat
| MD5 | 2e2d2d65eac339522df4147f53fc1777 |
| SHA1 | 518922d33942c80fdbdee6a9bdc248d69d471612 |
| SHA256 | f1ef79c7eefe129b7ba57cf3a0bca2fa32ec4956121be90df761813b74bb143d |
| SHA512 | 0836a49752e1d16547462ee3742689f52ffd974da306b9645ab728ce4b1055ac267411d26fc81ad34afb4cdc8e4c42e8b1e47af205be67878ae9ad74496b1135 |
memory/2808-19-0x0000000000AB0000-0x0000000000AE5000-memory.dmp
memory/2652-18-0x00000000012F0000-0x0000000001325000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | 55e10a9af74d3f3fa5ae3cb7ff5ad9d4 |
| SHA1 | 449221fd8d7196a54de2bd583625d8d1b64db56a |
| SHA256 | a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1 |
| SHA512 | 4af5ba74467b4c61302ea9571f19346c05f911843f2c6153fcd9a7340f9bc6e1f8867cdb72ec7ba0dc4930199aa5c302711ad5da9fd35241839418f6e70a515a |
memory/2808-22-0x0000000000AB0000-0x0000000000AE5000-memory.dmp
memory/2808-24-0x0000000000AB0000-0x0000000000AE5000-memory.dmp
memory/2808-31-0x0000000000AB0000-0x0000000000AE5000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-12 10:04
Reported
2024-08-12 10:07
Platform
win10v2004-20240802-en
Max time kernel
140s
Max time network
128s
Command Line
Signatures
Urelas
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\8e5032f0d2aa4f8ef96335b037a29322_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\biudfw.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\8e5032f0d2aa4f8ef96335b037a29322_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\biudfw.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 316 wrote to memory of 3428 | N/A | C:\Users\Admin\AppData\Local\Temp\8e5032f0d2aa4f8ef96335b037a29322_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\biudfw.exe |
| PID 316 wrote to memory of 3428 | N/A | C:\Users\Admin\AppData\Local\Temp\8e5032f0d2aa4f8ef96335b037a29322_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\biudfw.exe |
| PID 316 wrote to memory of 3428 | N/A | C:\Users\Admin\AppData\Local\Temp\8e5032f0d2aa4f8ef96335b037a29322_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\biudfw.exe |
| PID 316 wrote to memory of 4828 | N/A | C:\Users\Admin\AppData\Local\Temp\8e5032f0d2aa4f8ef96335b037a29322_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 316 wrote to memory of 4828 | N/A | C:\Users\Admin\AppData\Local\Temp\8e5032f0d2aa4f8ef96335b037a29322_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 316 wrote to memory of 4828 | N/A | C:\Users\Admin\AppData\Local\Temp\8e5032f0d2aa4f8ef96335b037a29322_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\8e5032f0d2aa4f8ef96335b037a29322_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8e5032f0d2aa4f8ef96335b037a29322_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\biudfw.exe
"C:\Users\Admin\AppData\Local\Temp\biudfw.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "
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 --field-trial-handle=4412,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=4448 /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| KR | 218.54.47.76:11120 | tcp | |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| KR | 218.54.47.74:11150 | tcp | |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 147.142.123.92.in-addr.arpa | udp |
| KR | 218.54.47.76:11170 | tcp | |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| KR | 218.54.47.77:11150 | tcp | |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
Files
memory/316-0-0x00000000007F0000-0x0000000000825000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\biudfw.exe
| MD5 | 725810a354a8f405d150e4dd009d5c13 |
| SHA1 | ee2b4a2245d1c795bdb1f9d171c4cdeb72b6b035 |
| SHA256 | cc930f62e4f2e5ee53c2df6557c9cc8b575d516f86b3a08eba3a102f71f8a2bc |
| SHA512 | 832d98506e3dbd61bff6cfb3412b57141c639775657fefbad5995c8448ce668beb585f22a64e055f88cde13299e1a23c8e85803238fb591f1985d400f5fa4267 |
memory/3428-11-0x00000000001E0000-0x0000000000215000-memory.dmp
memory/316-15-0x00000000007F0000-0x0000000000825000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\sanfdr.bat
| MD5 | 2e2d2d65eac339522df4147f53fc1777 |
| SHA1 | 518922d33942c80fdbdee6a9bdc248d69d471612 |
| SHA256 | f1ef79c7eefe129b7ba57cf3a0bca2fa32ec4956121be90df761813b74bb143d |
| SHA512 | 0836a49752e1d16547462ee3742689f52ffd974da306b9645ab728ce4b1055ac267411d26fc81ad34afb4cdc8e4c42e8b1e47af205be67878ae9ad74496b1135 |
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | 55e10a9af74d3f3fa5ae3cb7ff5ad9d4 |
| SHA1 | 449221fd8d7196a54de2bd583625d8d1b64db56a |
| SHA256 | a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1 |
| SHA512 | 4af5ba74467b4c61302ea9571f19346c05f911843f2c6153fcd9a7340f9bc6e1f8867cdb72ec7ba0dc4930199aa5c302711ad5da9fd35241839418f6e70a515a |
memory/3428-18-0x00000000001E0000-0x0000000000215000-memory.dmp
memory/3428-20-0x00000000001E0000-0x0000000000215000-memory.dmp
memory/3428-27-0x00000000001E0000-0x0000000000215000-memory.dmp