Analysis Overview
SHA256
73d448c429921a844a556fb0d5addc6af5bab77842fddb4782cbbd18086995ec
Threat Level: Known bad
The file 54b04c4846fab92642827b0d8fa86474.bin was found to be: Known bad.
Malicious Activity Summary
Purecrypter family
PureCrypter
Checks computer location settings
Suspicious use of SetThreadContext
Enumerates physical storage devices
Program crash
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Gathers network information
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-01-20 10:23
Signatures
Purecrypter family
Analysis: behavioral2
Detonation Overview
Submitted
2023-01-20 10:23
Reported
2023-01-20 10:26
Platform
win10v2004-20221111-en
Max time kernel
124s
Max time network
152s
Command Line
Signatures
PureCrypter
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\77254af9b820ada0d2f0e274b81dd99279a9a88e2f1b309e99c6399d307ada0e.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4604 set thread context of 4056 | N/A | C:\Users\Admin\AppData\Local\Temp\77254af9b820ada0d2f0e274b81dd99279a9a88e2f1b309e99c6399d307ada0e.exe | C:\Users\Admin\AppData\Local\Temp\77254af9b820ada0d2f0e274b81dd99279a9a88e2f1b309e99c6399d307ada0e.exe |
Enumerates physical storage devices
Gathers network information
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\ipconfig.exe | N/A |
| N/A | N/A | C:\Windows\system32\ipconfig.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\77254af9b820ada0d2f0e274b81dd99279a9a88e2f1b309e99c6399d307ada0e.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\77254af9b820ada0d2f0e274b81dd99279a9a88e2f1b309e99c6399d307ada0e.exe
"C:\Users\Admin\AppData\Local\Temp\77254af9b820ada0d2f0e274b81dd99279a9a88e2f1b309e99c6399d307ada0e.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c ipconfig/release
C:\Windows\system32\ipconfig.exe
ipconfig /release
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c ipconfig/renew
C:\Windows\system32\ipconfig.exe
ipconfig /renew
C:\Users\Admin\AppData\Local\Temp\77254af9b820ada0d2f0e274b81dd99279a9a88e2f1b309e99c6399d307ada0e.exe
C:\Users\Admin\AppData\Local\Temp\77254af9b820ada0d2f0e274b81dd99279a9a88e2f1b309e99c6399d307ada0e.exe
Network
| Country | Destination | Domain | Proto |
| N/A | 8.8.8.8:53 | cesarsoriano.pe | udp |
| N/A | 8.8.8.8:53 | 14.110.152.52.in-addr.arpa | udp |
| N/A | 161.132.46.17:443 | cesarsoriano.pe | tcp |
| N/A | 93.184.220.29:80 | tcp | |
| N/A | 8.8.8.8:53 | prelogs.duckdns.org | udp |
| N/A | 217.64.149.248:2023 | prelogs.duckdns.org | tcp |
| N/A | 104.208.16.90:443 | tcp | |
| N/A | 67.26.111.254:80 | tcp | |
| N/A | 104.80.225.205:443 | tcp | |
| N/A | 67.26.111.254:80 | tcp | |
| N/A | 8.8.8.8:53 | prelogs.duckdns.org | udp |
| N/A | 217.64.149.248:2023 | prelogs.duckdns.org | tcp |
| N/A | 8.8.8.8:53 | prelogs.duckdns.org | udp |
| N/A | 217.64.149.248:2023 | prelogs.duckdns.org | tcp |
| N/A | 217.64.149.248:2023 | prelogs.duckdns.org | tcp |
Files
memory/4604-132-0x0000021B4E590000-0x0000021B4E5A0000-memory.dmp
memory/4604-133-0x00007FFD9D490000-0x00007FFD9DF51000-memory.dmp
memory/4604-134-0x0000021B691D0000-0x0000021B69220000-memory.dmp
memory/4604-135-0x0000021B69670000-0x0000021B69722000-memory.dmp
memory/4604-136-0x0000021B69620000-0x0000021B69642000-memory.dmp
memory/2512-137-0x0000000000000000-mapping.dmp
memory/4260-138-0x0000000000000000-mapping.dmp
memory/4244-139-0x0000000000000000-mapping.dmp
memory/4244-140-0x00007FFD9D490000-0x00007FFD9DF51000-memory.dmp
memory/4604-141-0x00007FFD9D490000-0x00007FFD9DF51000-memory.dmp
memory/4244-142-0x00007FFD9D490000-0x00007FFD9DF51000-memory.dmp
memory/4244-143-0x00007FFD9D490000-0x00007FFD9DF51000-memory.dmp
memory/3708-144-0x0000000000000000-mapping.dmp
memory/2240-145-0x0000000000000000-mapping.dmp
memory/4056-146-0x0000000000400000-0x00000000004AC000-memory.dmp
memory/4056-147-0x0000000000400000-mapping.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\77254af9b820ada0d2f0e274b81dd99279a9a88e2f1b309e99c6399d307ada0e.exe.log
| MD5 | c0927b4be5caf9046812a992778863ca |
| SHA1 | a649a25bca9c4c8798f2fef76938cbeabe740a35 |
| SHA256 | 722aab6d1ea633f819966594bdccd80680520b8ffe68d6bb370c2d579bc8071e |
| SHA512 | d4028be29140b17916d75370d726c401d26024d66be3bde4ee8c27e79cb9ae664038f08f983f47af4a93cddb48a2b76737922e68bd1ad69f3b226206a07eee70 |
memory/4604-149-0x00007FFD9D490000-0x00007FFD9DF51000-memory.dmp
memory/4056-150-0x00007FFD9D490000-0x00007FFD9DF51000-memory.dmp
memory/4056-151-0x00007FFD9D490000-0x00007FFD9DF51000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2023-01-20 10:23
Reported
2023-01-20 10:26
Platform
win7-20220812-en
Max time kernel
64s
Max time network
56s
Command Line
Signatures
PureCrypter
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\77254af9b820ada0d2f0e274b81dd99279a9a88e2f1b309e99c6399d307ada0e.exe |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\77254af9b820ada0d2f0e274b81dd99279a9a88e2f1b309e99c6399d307ada0e.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1480 wrote to memory of 1544 | N/A | C:\Users\Admin\AppData\Local\Temp\77254af9b820ada0d2f0e274b81dd99279a9a88e2f1b309e99c6399d307ada0e.exe | C:\Windows\system32\WerFault.exe |
| PID 1480 wrote to memory of 1544 | N/A | C:\Users\Admin\AppData\Local\Temp\77254af9b820ada0d2f0e274b81dd99279a9a88e2f1b309e99c6399d307ada0e.exe | C:\Windows\system32\WerFault.exe |
| PID 1480 wrote to memory of 1544 | N/A | C:\Users\Admin\AppData\Local\Temp\77254af9b820ada0d2f0e274b81dd99279a9a88e2f1b309e99c6399d307ada0e.exe | C:\Windows\system32\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\77254af9b820ada0d2f0e274b81dd99279a9a88e2f1b309e99c6399d307ada0e.exe
"C:\Users\Admin\AppData\Local\Temp\77254af9b820ada0d2f0e274b81dd99279a9a88e2f1b309e99c6399d307ada0e.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1480 -s 1060
Network
| Country | Destination | Domain | Proto |
| N/A | 8.8.8.8:53 | cesarsoriano.pe | udp |
| N/A | 161.132.46.17:443 | cesarsoriano.pe | tcp |
| N/A | 161.132.46.17:443 | cesarsoriano.pe | tcp |
| N/A | 161.132.46.17:443 | cesarsoriano.pe | tcp |
| N/A | 161.132.46.17:443 | cesarsoriano.pe | tcp |
| N/A | 161.132.46.17:443 | cesarsoriano.pe | tcp |
Files
memory/1480-54-0x00000000010C0000-0x00000000010D0000-memory.dmp
memory/1544-55-0x0000000000000000-mapping.dmp