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| File name: | letter.zip |
| Full analysis: | https://app.any.run/tasks/f8789027-5329-45e4-964e-9036deaa233b |
| Verdict: | Malicious activity |
| Analysis date: | March 21, 2019, 07:49:03 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Indicators: | |
| MIME: | application/zip |
| File info: | Zip archive data, at least v1.0 to extract |
| MD5: | FAF3DB17470BEA9EE49F304AC57132C7 |
| SHA1: | DD0B90203F6E1B2742099ED909C549228E890779 |
| SHA256: | 5C04B90BC9AEF856674E6651492FF8684FC7231F26BA1C7BFEDFB97A2E2F16E9 |
| SSDEEP: | 768:JCIqdH/k1ZVcT194jp4UEk371Aa2rkkns1lveEXrfD6ysFmTf2ulZp3x4O7DUq9:JNqaLV8a6U33RA/rFnsrrfDBfhlZZbUA |
MALICIOUS
Application was dropped or rewritten from another process
- Letter.exe (PID: 2588)
Changes the autorun value in the registry
- Letter.exe (PID: 2588)
SUSPICIOUS
Executable content was dropped or overwritten
- WinRAR.exe (PID: 2808)
- Letter.exe (PID: 2588)
Connects to unusual port
- Letter.exe (PID: 2588)
Reads the cookies of Google Chrome
- Letter.exe (PID: 2588)
Connects to SMTP port
- Letter.exe (PID: 2588)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .zip | | | ZIP compressed archive (100) |
|---|
EXIF
ZIP
| ZipRequiredVersion: | 10 |
|---|---|
| ZipBitFlag: | - |
| ZipCompression: | None |
| ZipModifyDate: | 2004:03:21 06:15:08 |
| ZipCRC: | 0xd0ef6e3c |
| ZipCompressedSize: | 56008 |
| ZipUncompressedSize: | 56008 |
| ZipFileName: | Letter.exe |
Total processes
31
Monitored processes
2
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 2808 | "C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\letter.zip" | C:\Program Files\WinRAR\WinRAR.exe | explorer.exe | |
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Version: 5.60.0 | ||||
| 2588 | "C:\Users\admin\AppData\Local\Temp\Rar$EXa2808.6882\Letter.exe" | C:\Users\admin\AppData\Local\Temp\Rar$EXa2808.6882\Letter.exe | WinRAR.exe | |
User: admin Integrity Level: MEDIUM | ||||
Total events
477
Read events
450
Write events
27
Delete events
0
Modification events
| (PID) Process: | (2808) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes |
| Operation: | write | Name: | ShellExtBMP |
Value: | |||
| (PID) Process: | (2808) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes |
| Operation: | write | Name: | ShellExtIcon |
Value: | |||
| (PID) Process: | (2808) WinRAR.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\62\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2808) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\AppData\Local\Temp\letter.zip | |||
| (PID) Process: | (2808) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (2808) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (2808) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
| (PID) Process: | (2808) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | mtime |
Value: 100 | |||
| (PID) Process: | (2808) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (2808) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
Executable files
5
Suspicious files
1
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2588 | Letter.exe | C:\Users\admin\AppData\Local\Temp\tmpBFAE.tmp | — | |
MD5:— | SHA256:— | |||
| 2588 | Letter.exe | C:\Users\admin\AppData\Local\Temp\tmpC09A.tmp | — | |
MD5:— | SHA256:— | |||
| 2588 | Letter.exe | C:\Users\admin\AppData\Local\Temp\tmpC0BA.tmp | — | |
MD5:— | SHA256:— | |||
| 2588 | Letter.exe | C:\Users\admin\AppData\Local\Temp\tmpEBD2.tmp | — | |
MD5:— | SHA256:— | |||
| 2588 | Letter.exe | C:\Users\admin\AppData\Local\Temp\tmpEC41.tmp | — | |
MD5:— | SHA256:— | |||
| 2588 | Letter.exe | C:\Users\admin\AppData\Local\Temp\tmpEC51.tmp | — | |
MD5:— | SHA256:— | |||
| 2588 | Letter.exe | C:\Users\admin\AppData\Local\Temp\tmpECCF.tmp | — | |
MD5:— | SHA256:— | |||
| 2588 | Letter.exe | C:\Users\admin\AppData\Local\Temp\tmpECEF.tmp | — | |
MD5:— | SHA256:— | |||
| 2588 | Letter.exe | C:\Users\admin\AppData\Local\Temp\tmpED4E.tmp | — | |
MD5:— | SHA256:— | |||
| 2588 | Letter.exe | C:\Users\admin\AppData\Local\Temp\tmpEDAD.tmp | — | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
81
DNS requests
135
Threats
0
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2588 | Letter.exe | 65.120.135.50:1042 | — | Qwest Communications Company, LLC | US | unknown |
2588 | Letter.exe | 141.240.237.51:1042 | — | — | US | unknown |
2588 | Letter.exe | 10.16.88.99:1042 | — | — | — | unknown |
2588 | Letter.exe | 138.209.38.111:1042 | — | — | US | unknown |
2588 | Letter.exe | 15.238.5.149:1042 | — | Hewlett-Packard Company | US | unknown |
2588 | Letter.exe | 15.252.60.114:1042 | — | Hewlett-Packard Company | US | unknown |
2588 | Letter.exe | 15.237.25.161:1042 | — | Hewlett-Packard Company | US | unknown |
2588 | Letter.exe | 12.33.239.250:1042 | — | AT&T Services, Inc. | US | unknown |
2588 | Letter.exe | 16.100.81.166:1042 | — | Hewlett-Packard Company | US | unknown |
2588 | Letter.exe | 17.151.62.68:25 | nwk-aaemail-lapp03.apple.com | Apple Inc. | US | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
dns.msftncsi.com |
| shared |
apple.com |
| whitelisted |
nwk-aaemail-lapp03.apple.com |
| whitelisted |
unicode.org |
| whitelisted |
corp.unicode.org |
| unknown |
web.de |
| shared |
mx-ha02.web.de |
| unknown |
j3e.de |
| unknown |
yassou.net |
| unknown |
ns1.samba.org |
| unknown |