Analysis Overview
SHA256
66e2a59c7b388966923e6795628903f8c0f68606809292e748110a369c158dce
Threat Level: Known bad
The file virussign.com_60a44760389917019a27a58bf61b7040.vir was found to be: Known bad.
Malicious Activity Summary
Berbew family
Malware Dropper & Backdoor - Berbew
Executes dropped EXE
Loads dropped DLL
Deletes itself
Legitimate hosting services abused for malware hosting/C2
Unsigned PE
Program crash
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-02 10:32
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 10:32
Reported
2024-06-02 10:35
Platform
win7-20240221-en
Max time kernel
120s
Max time network
132s
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_60a44760389917019a27a58bf61b7040.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | pastebin.com | N/A | N/A |
| N/A | pastebin.com | N/A | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1688 wrote to memory of 1744 | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe |
| PID 1688 wrote to memory of 1744 | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe |
| PID 1688 wrote to memory of 1744 | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe |
| PID 1688 wrote to memory of 1744 | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe
"C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe"
C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe
C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | pastebin.com | udp |
| US | 104.20.3.235:443 | pastebin.com | tcp |
Files
memory/1688-0-0x0000000000400000-0x00000000004EF000-memory.dmp
\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe
| MD5 | 5c924636d93dff5c0dc40ce7731c36f7 |
| SHA1 | ab82742e5912bcb6f51c36b506b97926a6e8d1f7 |
| SHA256 | efdbd3368bc06e8c19bffd21bdce6a358502bb029cb66cee0edbffa743b53ca4 |
| SHA512 | 8470f144f828b76a163d7c712201f7c6fdaf8f702b58b98145ed4f6862bc01598ff0df609f1a4163cc018b41a43b87e3a19171623daad4026ea5d718cf3cd245 |
memory/1688-7-0x0000000000400000-0x00000000004EF000-memory.dmp
memory/1744-9-0x0000000000400000-0x00000000004EF000-memory.dmp
memory/1744-10-0x0000000000400000-0x00000000004A3000-memory.dmp
memory/1744-16-0x0000000002F00000-0x0000000002FEF000-memory.dmp
memory/1744-38-0x000000000FCB0000-0x000000000FD53000-memory.dmp
memory/1744-32-0x0000000000400000-0x0000000000443000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-02 10:32
Reported
2024-06-02 10:35
Platform
win10v2004-20240508-en
Max time kernel
134s
Max time network
129s
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_60a44760389917019a27a58bf61b7040.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | pastebin.com | N/A | N/A |
| N/A | pastebin.com | N/A | N/A |
Program crash
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 736 wrote to memory of 3680 | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe |
| PID 736 wrote to memory of 3680 | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe |
| PID 736 wrote to memory of 3680 | N/A | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe | C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe
"C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 736 -ip 736
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 352
C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe
C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3680 -ip 3680
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 344
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3680 -ip 3680
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 628
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3680 -ip 3680
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 648
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3680 -ip 3680
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 636
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3680 -ip 3680
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 688
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3680 -ip 3680
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 924
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3680 -ip 3680
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 1404
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3680 -ip 3680
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 1480
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3680 -ip 3680
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 1636
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3680 -ip 3680
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 1652
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3680 -ip 3680
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 1492
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3680 -ip 3680
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 1636
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3680 -ip 3680
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 1640
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=3760,i,15140928051103392835,1612840580898364401,262144 --variations-seed-version --mojo-platform-channel-handle=4376 /prefetch:8
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3680 -ip 3680
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 1536
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3680 -ip 3680
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 672
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 224.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | pastebin.com | udp |
| US | 104.20.3.235:443 | pastebin.com | tcp |
| US | 8.8.8.8:53 | 235.3.20.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.169.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 203.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.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 | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.179.89.13.in-addr.arpa | udp |
Files
memory/736-0-0x0000000000400000-0x00000000004EF000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\virussign.com_60a44760389917019a27a58bf61b7040.exe
| MD5 | 1295dc54fd8973a286a0675692d51632 |
| SHA1 | d5f557e9bfbc96ce15637cd807193b8961db16d3 |
| SHA256 | b78454036079f7e30fe74bf0fc8c0fc38e54710508bc8d7e82b8fc6296c14df3 |
| SHA512 | 769ac4fcbd397b934cf1dbe235c4c908af75518fc7110d9536cf12a5deaac80a1a18078c83b6096ddff5a32f7b6ba869fc317ad6a2e970a2580ad767015569ac |
memory/736-6-0x0000000000400000-0x00000000004EF000-memory.dmp
memory/3680-7-0x0000000000400000-0x00000000004EF000-memory.dmp
memory/3680-8-0x0000000000400000-0x00000000004A3000-memory.dmp
memory/3680-14-0x0000000005100000-0x00000000051EF000-memory.dmp
memory/3680-22-0x0000000000400000-0x0000000000443000-memory.dmp
memory/3680-27-0x000000000B980000-0x000000000BA23000-memory.dmp