Analysis Overview
SHA256
e42d80213ebcfecec9e658ac20303535da2f301903eb28625f10d14f1df79af7
Threat Level: Known bad
The file virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.vir was found to be: Known bad.
Malicious Activity Summary
Berbew family
Malware Dropper & Backdoor - Berbew
Deletes itself
Executes dropped EXE
Loads dropped DLL
Unsigned PE
Program crash
Suspicious use of WriteProcessMemory
Suspicious behavior: RenamesItself
Suspicious use of UnmapMainImage
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-06-02 18:52
Signatures
Berbew family
Malware Dropper & Backdoor - Berbew
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-02 18:52
Reported
2024-06-02 18:55
Platform
win7-20240508-en
Max time kernel
120s
Max time network
125s
Command Line
Signatures
Malware Dropper & Backdoor - Berbew
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2816 wrote to memory of 2940 | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe |
| PID 2816 wrote to memory of 2940 | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe |
| PID 2816 wrote to memory of 2940 | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe |
| PID 2816 wrote to memory of 2940 | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe
"C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe"
C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe
C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe
Network
Files
memory/2816-0-0x0000000000400000-0x0000000000439000-memory.dmp
\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe
| MD5 | 8c5adc5356ed3873bfca630345d646f3 |
| SHA1 | c6e7912f25dfa326e720d8692e554236524f9458 |
| SHA256 | 16206ee7bf940669ea27992152dd9093815777dba590e656d8219c59238dcbc0 |
| SHA512 | 12255344733d0e7a8804d1d5cdf481addb2976d0871932d3325eabf8611c2fac74a0d60bdb92e0da44cc1ab707d659d0a82726062ad1c51dea7030d858cc4506 |
memory/2816-5-0x0000000000130000-0x0000000000169000-memory.dmp
memory/2940-10-0x0000000000400000-0x0000000000439000-memory.dmp
memory/2816-11-0x0000000000400000-0x0000000000439000-memory.dmp
memory/2940-12-0x0000000000400000-0x000000000041A000-memory.dmp
memory/2940-17-0x0000000000130000-0x0000000000169000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-02 18:52
Reported
2024-06-02 18:55
Platform
win10v2004-20240508-en
Max time kernel
131s
Max time network
134s
Command Line
Signatures
Malware Dropper & Backdoor - Berbew
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe | N/A |
Program crash
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2716 wrote to memory of 5096 | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe |
| PID 2716 wrote to memory of 5096 | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe |
| PID 2716 wrote to memory of 5096 | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe | C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe
"C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2716 -ip 2716
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2716 -s 344
C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe
C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 5096 -ip 5096
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5096 -s 364
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=4352,i,14486271492189381216,15799931579469722648,262144 --variations-seed-version --mojo-platform-channel-handle=3788 /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 145.83.221.88.in-addr.arpa | udp |
| 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 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 129.83.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
Files
memory/2716-0-0x0000000000400000-0x0000000000439000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\virussign.com_55416d6abd3b3cd5ebb553b745acf8c0.exe
| MD5 | 7869c212e59db09954f1f184f8e5caa0 |
| SHA1 | eb0625fa855172decf5068e9f99eef86af0db8c8 |
| SHA256 | 9d8ccb745074769b499b309a7126060f08434d50a8482ae27f9243d8083f60c3 |
| SHA512 | 362f0f7e831832901bd722214a2e72015711d6b89e0a6e1dc8c76794012e9515bb965ccc536ec55cebdef1ee2ea3d2976c55a186823c010d2208fbcd1d8af4ed |
memory/5096-7-0x0000000000400000-0x0000000000439000-memory.dmp
memory/2716-6-0x0000000000400000-0x0000000000439000-memory.dmp
memory/5096-8-0x0000000000400000-0x000000000041A000-memory.dmp
memory/5096-13-0x0000000001510000-0x0000000001549000-memory.dmp