Analysis
-
max time kernel
122s -
max time network
78s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
15-09-2021 07:08
Static task
static1
Behavioral task
behavioral1
Sample
SHIPPING DOCUMENT.xlsx
Resource
win7v20210408
Behavioral task
behavioral2
Sample
SHIPPING DOCUMENT.xlsx
Resource
win10-en
General
-
Target
SHIPPING DOCUMENT.xlsx
-
Size
587KB
-
MD5
8d888bf7f0fbf737dcb6f62f58d9c00e
-
SHA1
5d8acca52c259e714e4e28a9e6ea3a36f5eb108f
-
SHA256
3368451d206d750382c2ff4c823c3a0f95952e2ce86e7fdde7b4c3e1d4d5c75b
-
SHA512
ec7e95b51f72ac8182859edffe4ea68ea18d2e6c93df5ab9d850fdb63d3494fdf6eabe75c30a1ff07a5df5f99cc9eb076691fbfb70a0d84f0a16a57c9e05ab96
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.ccsp-india.com - Port:
587 - Username:
jayamurugan@ccsp-india.com - Password:
Lkp$CcsP1008
Signatures
-
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
-
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
-
AgentTesla Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/1664-81-0x000000000043766E-mapping.dmp family_agenttesla behavioral1/memory/1664-83-0x0000000000090000-0x00000000000CC000-memory.dmp family_agenttesla behavioral1/memory/1664-86-0x0000000000090000-0x00000000000CC000-memory.dmp family_agenttesla -
Blocklisted process makes network request 1 IoCs
Processes:
EQNEDT32.EXEflow pid process 5 568 EQNEDT32.EXE -
Downloads MZ/PE file
-
Executes dropped EXE 2 IoCs
Processes:
vbc.exeInstallUtil.exepid process 1164 vbc.exe 1664 InstallUtil.exe -
Loads dropped DLL 5 IoCs
Processes:
EQNEDT32.EXEvbc.exepid process 568 EQNEDT32.EXE 568 EQNEDT32.EXE 568 EQNEDT32.EXE 568 EQNEDT32.EXE 1164 vbc.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
-
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Uses the VBS compiler for execution 1 TTPs
-
Suspicious use of SetThreadContext 1 IoCs
Processes:
vbc.exedescription pid process target process PID 1164 set thread context of 1664 1164 vbc.exe InstallUtil.exe -
Enumerates system info in registry 2 TTPs 1 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE -
Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
-
Processes:
EXCEL.EXEdescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE -
Processes:
vbc.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 vbc.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 vbc.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1984 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
vbc.exeInstallUtil.exepid process 1164 vbc.exe 1664 InstallUtil.exe 1664 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
vbc.exeInstallUtil.exedescription pid process Token: SeDebugPrivilege 1164 vbc.exe Token: SeDebugPrivilege 1664 InstallUtil.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1984 EXCEL.EXE 1984 EXCEL.EXE 1984 EXCEL.EXE -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
EQNEDT32.EXEvbc.exedescription pid process target process PID 568 wrote to memory of 1164 568 EQNEDT32.EXE vbc.exe PID 568 wrote to memory of 1164 568 EQNEDT32.EXE vbc.exe PID 568 wrote to memory of 1164 568 EQNEDT32.EXE vbc.exe PID 568 wrote to memory of 1164 568 EQNEDT32.EXE vbc.exe PID 1164 wrote to memory of 1664 1164 vbc.exe InstallUtil.exe PID 1164 wrote to memory of 1664 1164 vbc.exe InstallUtil.exe PID 1164 wrote to memory of 1664 1164 vbc.exe InstallUtil.exe PID 1164 wrote to memory of 1664 1164 vbc.exe InstallUtil.exe PID 1164 wrote to memory of 1664 1164 vbc.exe InstallUtil.exe PID 1164 wrote to memory of 1664 1164 vbc.exe InstallUtil.exe PID 1164 wrote to memory of 1664 1164 vbc.exe InstallUtil.exe PID 1164 wrote to memory of 1664 1164 vbc.exe InstallUtil.exe PID 1164 wrote to memory of 1664 1164 vbc.exe InstallUtil.exe PID 1164 wrote to memory of 1664 1164 vbc.exe InstallUtil.exe PID 1164 wrote to memory of 1664 1164 vbc.exe InstallUtil.exe PID 1164 wrote to memory of 1664 1164 vbc.exe InstallUtil.exe
Processes
-
C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENT.xlsx"1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
-
C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
-
C:\Users\Public\vbc.exe"C:\Users\Public\vbc.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\\InstallUtil.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
-
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
-
C:\Users\Public\vbc.exeMD5
6081ce5670ccefa83d80c014be81c3b1
SHA11951b5cfe05cd518f24fc853c80fccc841a18bdd
SHA2568bd37ec94a72399af42c7daa01e5d9f7b50fb2fecab3883d1db28298a2cfa705
SHA512f6374b00e5c95384ca36d22a0946f327125f351415eb976d7047d5ba29e618233445c0de0de265eeacfb84077b8c48b76ef8bc0ab55026ea3b5eca35f29f5386
-
C:\Users\Public\vbc.exeMD5
6081ce5670ccefa83d80c014be81c3b1
SHA11951b5cfe05cd518f24fc853c80fccc841a18bdd
SHA2568bd37ec94a72399af42c7daa01e5d9f7b50fb2fecab3883d1db28298a2cfa705
SHA512f6374b00e5c95384ca36d22a0946f327125f351415eb976d7047d5ba29e618233445c0de0de265eeacfb84077b8c48b76ef8bc0ab55026ea3b5eca35f29f5386
-
\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
-
\Users\Public\vbc.exeMD5
6081ce5670ccefa83d80c014be81c3b1
SHA11951b5cfe05cd518f24fc853c80fccc841a18bdd
SHA2568bd37ec94a72399af42c7daa01e5d9f7b50fb2fecab3883d1db28298a2cfa705
SHA512f6374b00e5c95384ca36d22a0946f327125f351415eb976d7047d5ba29e618233445c0de0de265eeacfb84077b8c48b76ef8bc0ab55026ea3b5eca35f29f5386
-
\Users\Public\vbc.exeMD5
6081ce5670ccefa83d80c014be81c3b1
SHA11951b5cfe05cd518f24fc853c80fccc841a18bdd
SHA2568bd37ec94a72399af42c7daa01e5d9f7b50fb2fecab3883d1db28298a2cfa705
SHA512f6374b00e5c95384ca36d22a0946f327125f351415eb976d7047d5ba29e618233445c0de0de265eeacfb84077b8c48b76ef8bc0ab55026ea3b5eca35f29f5386
-
\Users\Public\vbc.exeMD5
6081ce5670ccefa83d80c014be81c3b1
SHA11951b5cfe05cd518f24fc853c80fccc841a18bdd
SHA2568bd37ec94a72399af42c7daa01e5d9f7b50fb2fecab3883d1db28298a2cfa705
SHA512f6374b00e5c95384ca36d22a0946f327125f351415eb976d7047d5ba29e618233445c0de0de265eeacfb84077b8c48b76ef8bc0ab55026ea3b5eca35f29f5386
-
\Users\Public\vbc.exeMD5
6081ce5670ccefa83d80c014be81c3b1
SHA11951b5cfe05cd518f24fc853c80fccc841a18bdd
SHA2568bd37ec94a72399af42c7daa01e5d9f7b50fb2fecab3883d1db28298a2cfa705
SHA512f6374b00e5c95384ca36d22a0946f327125f351415eb976d7047d5ba29e618233445c0de0de265eeacfb84077b8c48b76ef8bc0ab55026ea3b5eca35f29f5386
-
memory/568-62-0x00000000767B1000-0x00000000767B3000-memory.dmpFilesize
8KB
-
memory/1164-77-0x0000000000290000-0x000000000029A000-memory.dmpFilesize
40KB
-
memory/1164-67-0x0000000000000000-mapping.dmp
-
memory/1164-72-0x00000000004C0000-0x00000000004C1000-memory.dmpFilesize
4KB
-
memory/1164-73-0x0000000000500000-0x0000000000524000-memory.dmpFilesize
144KB
-
memory/1164-70-0x00000000003D0000-0x00000000003D1000-memory.dmpFilesize
4KB
-
memory/1164-79-0x00000000004C1000-0x00000000004C2000-memory.dmpFilesize
4KB
-
memory/1664-86-0x0000000000090000-0x00000000000CC000-memory.dmpFilesize
240KB
-
memory/1664-81-0x000000000043766E-mapping.dmp
-
memory/1664-83-0x0000000000090000-0x00000000000CC000-memory.dmpFilesize
240KB
-
memory/1664-88-0x0000000000090000-0x0000000000092000-memory.dmpFilesize
8KB
-
memory/1664-90-0x0000000004B30000-0x0000000004B31000-memory.dmpFilesize
4KB
-
memory/1664-92-0x0000000004B31000-0x0000000004B32000-memory.dmpFilesize
4KB
-
memory/1984-59-0x000000002F151000-0x000000002F154000-memory.dmpFilesize
12KB
-
memory/1984-76-0x0000000005D30000-0x000000000697A000-memory.dmpFilesize
12.3MB
-
memory/1984-75-0x0000000005D30000-0x000000000697A000-memory.dmpFilesize
12.3MB
-
memory/1984-61-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
-
memory/1984-74-0x0000000005D30000-0x000000000697A000-memory.dmpFilesize
12.3MB
-
memory/1984-60-0x0000000071851000-0x0000000071853000-memory.dmpFilesize
8KB
-
memory/1984-91-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB