Analysis Overview
SHA256
a1d070e57e5d9002274f814372596fd59e4ed49ec373020c45ec2ed1f8bf847d
Threat Level: Known bad
The file build.exe was found to be: Known bad.
Malicious Activity Summary
Stealerium
Stealerium family
Checks computer location settings
Enumerates physical storage devices
Unsigned PE
Delays execution with timeout.exe
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-10-20 03:52
Signatures
Stealerium family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-10-20 03:52
Reported
2023-10-20 04:22
Platform
win7-20230831-en
Max time kernel
1566s
Max time network
1569s
Command Line
Signatures
Stealerium
Enumerates physical storage devices
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\build.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\build.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\build.exe
"C:\Users\Admin\AppData\Local\Temp\build.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp59DB.tmp.bat
C:\Windows\SysWOW64\chcp.com
chcp 65001
C:\Windows\SysWOW64\taskkill.exe
TaskKill /F /IM 1596
C:\Windows\SysWOW64\timeout.exe
Timeout /T 2 /Nobreak
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | canary.discord.com | udp |
| US | 162.159.137.232:443 | canary.discord.com | tcp |
Files
memory/1596-1-0x00000000748E0000-0x0000000074FCE000-memory.dmp
memory/1596-0-0x0000000000B70000-0x0000000000D02000-memory.dmp
memory/1596-2-0x0000000004AE0000-0x0000000004B20000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Cab5717.tmp
| MD5 | f3441b8572aae8801c04f3060b550443 |
| SHA1 | 4ef0a35436125d6821831ef36c28ffaf196cda15 |
| SHA256 | 6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf |
| SHA512 | 5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9 |
C:\Users\Admin\AppData\Local\Temp\Tar5797.tmp
| MD5 | 9441737383d21192400eca82fda910ec |
| SHA1 | 725e0d606a4fc9ba44aa8ffde65bed15e65367e4 |
| SHA256 | bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5 |
| SHA512 | 7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf |
memory/1596-37-0x00000000748E0000-0x0000000074FCE000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp59DB.tmp.bat
| MD5 | 9cc15ed957db45f77c91b55ac7b568e0 |
| SHA1 | 8f1a1641022c3a4cd6ee245d5fcd1a06dea99b8e |
| SHA256 | 9155cc5f3d597f636169a7bdd84119f84495837809937a170e1bf2170eea0e65 |
| SHA512 | d0d8eb140050f40643774b21e23ba72fdb8274335d53da2e4db605a2b6d622d291e31bfc5a8494bce5890945fd54a1d5761436b22ff33542732e84261db3bf6b |
memory/1596-40-0x00000000748E0000-0x0000000074FCE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-10-20 03:52
Reported
2023-10-20 04:23
Platform
win10v2004-20230915-en
Max time kernel
1738s
Max time network
1173s
Command Line
Signatures
Stealerium
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\build.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\build.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\build.exe | N/A |
Enumerates physical storage devices
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\build.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\build.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\build.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\build.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\build.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\build.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\build.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\System32\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\build.exe
"C:\Users\Admin\AppData\Local\Temp\build.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp856C.tmp.bat
C:\Windows\SysWOW64\chcp.com
chcp 65001
C:\Windows\SysWOW64\taskkill.exe
TaskKill /F /IM 2776
C:\Windows\SysWOW64\timeout.exe
Timeout /T 2 /Nobreak
C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
C:\Users\Admin\AppData\Local\Temp\build.exe
"C:\Users\Admin\AppData\Local\Temp\build.exe"
C:\Users\Admin\AppData\Local\Temp\build.exe
"C:\Users\Admin\AppData\Local\Temp\build.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpBB8F.tmp.bat
C:\Windows\SysWOW64\chcp.com
chcp 65001
C:\Windows\SysWOW64\taskkill.exe
TaskKill /F /IM 2960
C:\Windows\SysWOW64\timeout.exe
Timeout /T 2 /Nobreak
C:\Users\Admin\AppData\Local\Temp\build.exe
"C:\Users\Admin\AppData\Local\Temp\build.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpEEB5.tmp.bat
C:\Windows\SysWOW64\chcp.com
chcp 65001
C:\Windows\SysWOW64\taskkill.exe
TaskKill /F /IM 4484
C:\Windows\SysWOW64\timeout.exe
Timeout /T 2 /Nobreak
C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k UnistackSvcGroup
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.3.197.209.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | canary.discord.com | udp |
| US | 162.159.137.232:443 | canary.discord.com | tcp |
| US | 8.8.8.8:53 | 232.137.159.162.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 162.159.137.232:443 | canary.discord.com | tcp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 162.159.137.232:443 | canary.discord.com | tcp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 252.15.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.81.57.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 135.1.85.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
Files
memory/2776-0-0x0000000000AF0000-0x0000000000C82000-memory.dmp
memory/2776-1-0x00000000743F0000-0x0000000074BA0000-memory.dmp
memory/2776-2-0x0000000005650000-0x00000000056B6000-memory.dmp
memory/2776-3-0x0000000005640000-0x0000000005650000-memory.dmp
memory/2776-4-0x00000000743F0000-0x0000000074BA0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp856C.tmp.bat
| MD5 | 36460a086817968f4a4924cf9862a7d5 |
| SHA1 | e4d9bd8c66c59128e919d7c799a9f1b5cabd63e1 |
| SHA256 | 82f70785f17d0dce2388340c654067c247ce5b37aff0fa1eeb9181380aad9f1c |
| SHA512 | 10bc936392c487c8cfe0a6a481f80ddfaa7a79497296ee431b880ac829a11efe0df19fce2bfe8de366436b2d5436c32edccb666d4d8c4ecde0a2ab6b2b61cb71 |
memory/2776-7-0x00000000743F0000-0x0000000074BA0000-memory.dmp
memory/2960-8-0x0000000074490000-0x0000000074C40000-memory.dmp
memory/2960-9-0x0000000005340000-0x0000000005350000-memory.dmp
memory/4484-10-0x0000000074490000-0x0000000074C40000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpBB8F.tmp.bat
| MD5 | 5952ea205e38a6759603e9dfbfe89986 |
| SHA1 | bd5be120e84a4854e02ad5daa8749a3b2192e46b |
| SHA256 | 04f75331e9adb0502aae51a587ab7e88c82f92e20d9e79f5ae732c3ec438af87 |
| SHA512 | 83fe6492544716237244bfa13d7053924180fb1b4ec8601acd3afee0b4de50d0268e49a59bbc72db84fa7fbe15680710745d852f3a69b90e6d4f88711e2e25bd |
memory/4484-13-0x0000000005160000-0x0000000005170000-memory.dmp
memory/2960-14-0x0000000074490000-0x0000000074C40000-memory.dmp
memory/4484-15-0x0000000074490000-0x0000000074C40000-memory.dmp
memory/4476-16-0x0000000074490000-0x0000000074C40000-memory.dmp
memory/4484-17-0x0000000005160000-0x0000000005170000-memory.dmp
memory/4476-19-0x0000000074490000-0x0000000074C40000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpEEB5.tmp.bat
| MD5 | 6e5b41c630ab9c0c86a5e5c85b86c179 |
| SHA1 | e3e7f2566a7eae1c102776fe1574088a1b61792c |
| SHA256 | 42176faa51a463301e85d84a80eda9ee765ba1aa1822004fd8933d7553f40f03 |
| SHA512 | 94334e600871dd90c9e8dcbe0c0bbb326644405ef16dbd9023513bfdd976131c846392ceb6a7fc24b73bc1a1d09b83ac009b4c2fa74703d34b55220f5d827c0f |
memory/4484-22-0x0000000074490000-0x0000000074C40000-memory.dmp
memory/3732-23-0x000001B0FF140000-0x000001B0FF150000-memory.dmp
memory/3732-39-0x000001B0FF240000-0x000001B0FF250000-memory.dmp
memory/3732-55-0x000001B0FF530000-0x000001B0FF531000-memory.dmp
memory/3732-57-0x000001B0FF560000-0x000001B0FF561000-memory.dmp
memory/3732-58-0x000001B0FF560000-0x000001B0FF561000-memory.dmp
memory/3732-59-0x000001B0FF670000-0x000001B0FF671000-memory.dmp