| File name: | bau.docx |
| Full analysis: | https://app.any.run/tasks/8a5bde66-233c-4dba-bb28-b75a459cf480 |
| 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 29, 2019, 07:55:07 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.openxmlformats-officedocument.wordprocessingml.document |
| File info: | Microsoft Word 2007+ |
| MD5: | 5DA49B0F512C7842E37911D0BF5F5831 |
| SHA1: | 31B414AB65E22E19CE3A6B80303E2ED05C53A885 |
| SHA256: | 85997E087240560D408392DF17F262D05DAC5ADAF8155605A28C593572599324 |
| SSDEEP: | 768:a3D8WX9xOsttObdmj142h8unQE8hjDakw6LDzo:a3PX9xOpmj14P68YH6LY |
MALICIOUS
Application was dropped or rewritten from another process
- stub.exe (PID: 3524)
Unusual execution from Microsoft Office
- WINWORD.EXE (PID: 1848)
Executable content was dropped or overwritten
- WINWORD.EXE (PID: 1848)
Connects to CnC server
- explorer.exe (PID: 1432)
SMOKE was detected
- explorer.exe (PID: 1432)
Changes the autorun value in the registry
- explorer.exe (PID: 1432)
SUSPICIOUS
Creates files in the user directory
- explorer.exe (PID: 1432)
INFO
Creates files in the user directory
- WINWORD.EXE (PID: 1848)
Reads Microsoft Office registry keys
- WINWORD.EXE (PID: 1848)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .docx | | | Word Microsoft Office Open XML Format document (52.2) |
|---|---|---|
| .zip | | | Open Packaging Conventions container (38.8) |
| .zip | | | ZIP compressed archive (8.8) |
EXIF
XML
| AppVersion: | 16 |
|---|---|
| HyperlinksChanged: | No |
| SharedDoc: | No |
| CharactersWithSpaces: | 20 |
| LinksUpToDate: | No |
| Company: | - |
| ScaleCrop: | No |
| Paragraphs: | 1 |
| Lines: | 1 |
| DocSecurity: | None |
| Application: | Microsoft Office Word |
| Characters: | 18 |
| Words: | 3 |
| Pages: | 1 |
| TotalEditTime: | - |
| Template: | Normal |
| ModifyDate: | 2019:03:17 21:23:00Z |
| CreateDate: | 2019:03:17 21:23:00Z |
| RevisionNumber: | 1 |
| LastModifiedBy: | John Klok |
| Keywords: | - |
XMP
| Description: | - |
|---|---|
| Creator: | John Klok |
| Subject: | - |
| Title: | - |
ZIP
| ZipFileName: | [Content_Types].xml |
|---|---|
| ZipUncompressedSize: | 1460 |
| ZipCompressedSize: | 373 |
| ZipCRC: | 0x24886c04 |
| ZipModifyDate: | 1980:01:01 00:00:00 |
| ZipCompression: | Deflated |
| ZipBitFlag: | 0x0006 |
| ZipRequiredVersion: | 20 |
Total processes
35
Monitored processes
3
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1848 | "C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\AppData\Local\Temp\bau.docx" | C:\Program Files\Microsoft Office\Office14\WINWORD.EXE | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Word Exit code: 0 Version: 14.0.6024.1000 Modules
| |||||||||||||||
| 3524 | "C:\Users\admin\AppData\Local\Temp\stub.exe" | C:\Users\admin\AppData\Local\Temp\stub.exe | — | WINWORD.EXE | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 1432 | explorer.exe | C:\Windows\explorer.exe | stub.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Explorer Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
1 663
Read events
955
Write events
698
Delete events
10
Modification events
| (PID) Process: | (1848) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems |
| Operation: | write | Name: | p88 |
Value: 7038380038070000010000000000000000000000 | |||
| (PID) Process: | (1848) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1033 |
Value: Off | |||
| (PID) Process: | (1848) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1033 |
Value: On | |||
| (PID) Process: | (1848) WINWORD.EXE | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage |
| Operation: | write | Name: | WORDFiles |
Value: 1318912030 | |||
| (PID) Process: | (1848) WINWORD.EXE | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage |
| Operation: | write | Name: | ProductFiles |
Value: 1318912144 | |||
| (PID) Process: | (1848) WINWORD.EXE | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage |
| Operation: | write | Name: | ProductFiles |
Value: 1318912145 | |||
| (PID) Process: | (1848) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word |
| Operation: | write | Name: | MTTT |
Value: 38070000DA116EED60FED40100000000 | |||
| (PID) Process: | (1848) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems |
| Operation: | write | Name: | ':8 |
Value: 273A38003807000004000000000000008C00000001000000840000003E0043003A005C00550073006500720073005C00610064006D0069006E005C0041007000700044006100740061005C0052006F0061006D0069006E0067005C004D006900630072006F0073006F00660074005C00540065006D0070006C0061007400650073005C004E006F0072006D0061006C002E0064006F0074006D00000000000000 | |||
| (PID) Process: | (1848) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems |
| Operation: | delete value | Name: | ':8 |
Value: 273A38003807000004000000000000008C00000001000000840000003E0043003A005C00550073006500720073005C00610064006D0069006E005C0041007000700044006100740061005C0052006F0061006D0069006E0067005C004D006900630072006F0073006F00660074005C00540065006D0070006C0061007400650073005C004E006F0072006D0061006C002E0064006F0074006D00000000000000 | |||
| (PID) Process: | (1848) WINWORD.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
Executable files
1
Suspicious files
0
Text files
0
Unknown types
4
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1848 | WINWORD.EXE | C:\Users\admin\AppData\Local\Temp\CVR5CF0.tmp.cvr | — | |
MD5:— | SHA256:— | |||
| 1848 | WINWORD.EXE | C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRS{B77EB048-A218-4998-B577-7179B837E8F0}.tmp | — | |
MD5:— | SHA256:— | |||
| 1848 | WINWORD.EXE | C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRF{890C995F-7439-4E1C-A09F-6977082C8CC2}.tmp | — | |
MD5:— | SHA256:— | |||
| 1432 | explorer.exe | C:\Users\admin\AppData\Roaming\Microsoft\hvvtugrr\tesrdgeh.exe | — | |
MD5:— | SHA256:— | |||
| 1848 | WINWORD.EXE | C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\CA0DD517.emf | emf | |
MD5:81E0BA5363CCA75D65D17EA15C45872F | SHA256:C382312E42D2D336C95E2C1E7C1298602E810AF5CBD03806653C3ED73B18AE36 | |||
| 1848 | WINWORD.EXE | C:\Users\admin\AppData\Local\Temp\~$bau.docx | pgc | |
MD5:B72E952F916A02C709307EC6972707DA | SHA256:EDB085B0C3533590BA6BA0E863A3117550D962B87333FE0E68F2286082C5813F | |||
| 1848 | WINWORD.EXE | C:\Users\admin\AppData\Roaming\Microsoft\Templates\~$Normal.dotm | pgc | |
MD5:BAEC04A54AC968DB29FEE2F2ABDA0EA1 | SHA256:230C0E0381E2EA1B4CED9700B32635C2548CB4B0CE50C1D60F5BF49BA8E63985 | |||
| 1848 | WINWORD.EXE | C:\Users\admin\AppData\Local\Temp\stub.exe | executable | |
MD5:2E7ED53A5AEDFE45425D2944FF8C68DF | SHA256:F66DD3ABEBD56E5313BC6C95CEC4DF2C62D85E1497FF9EC7055823FD6B288D60 | |||
| 1848 | WINWORD.EXE | C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRS{070FC94A-289A-424D-BEBD-77DDE72FDFEF}.tmp | smt | |
MD5:5D4D94EE7E06BBB0AF9584119797B23A | SHA256:4826C0D860AF884D3343CA6460B0006A7A2CE7DBCCC4D743208585D997CC5FD1 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
19
TCP/UDP connections
14
DNS requests
10
Threats
17
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
1432 | explorer.exe | GET | 301 | 2.18.233.31:80 | http://support.microsoft.com/kb/2460049 | unknown | — | — | whitelisted |
1432 | explorer.exe | GET | 302 | 23.38.36.63:80 | http://go.microsoft.com/fwlink/?LinkId=133405 | NL | — | — | whitelisted |
1432 | explorer.exe | GET | 301 | 2.18.233.31:80 | http://support.microsoft.com/kb/2460049 | unknown | — | — | whitelisted |
1432 | explorer.exe | GET | 301 | 2.18.233.31:80 | http://support.microsoft.com/kb/2460049 | unknown | — | — | whitelisted |
1432 | explorer.exe | GET | 301 | 2.18.233.31:80 | http://support.microsoft.com/kb/2460049 | unknown | — | — | whitelisted |
1432 | explorer.exe | GET | 301 | 184.31.85.84:80 | http://msdn.microsoft.com/vstudio | NL | — | — | whitelisted |
1432 | explorer.exe | GET | 301 | 2.18.233.31:80 | http://support.microsoft.com/kb/2460049 | unknown | — | — | whitelisted |
1432 | explorer.exe | GET | 301 | 2.18.233.31:80 | http://support.microsoft.com/kb/2460049 | unknown | — | — | whitelisted |
1432 | explorer.exe | GET | 301 | 2.18.233.31:80 | http://support.microsoft.com/kb/2460049 | unknown | — | — | whitelisted |
1432 | explorer.exe | GET | — | 2.18.233.31:80 | http://support.microsoft.com/kb/2460049 | unknown | — | — | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
1432 | explorer.exe | 23.38.36.63:80 | go.microsoft.com | Akamai Technologies, Inc. | NL | whitelisted |
1432 | explorer.exe | 2.18.233.31:80 | support.microsoft.com | Akamai International B.V. | — | whitelisted |
1432 | explorer.exe | 93.123.73.193:80 | level23hacktools.com | Histate Global Corp. | BG | malicious |
1432 | explorer.exe | 2.18.233.31:443 | support.microsoft.com | Akamai International B.V. | — | whitelisted |
1432 | explorer.exe | 204.79.197.200:80 | www.bing.com | Microsoft Corporation | US | whitelisted |
1432 | explorer.exe | 184.31.85.84:80 | msdn.microsoft.com | Akamai International B.V. | NL | whitelisted |
1432 | explorer.exe | 35.158.61.69:80 | www.opera.com | Amazon.com, Inc. | DE | unknown |
1432 | explorer.exe | 104.111.246.141:443 | visualstudio.microsoft.com | Akamai International B.V. | NL | whitelisted |
1432 | explorer.exe | 104.108.60.31:80 | www.adobe.com | Akamai Technologies, Inc. | NL | whitelisted |
1432 | explorer.exe | 104.111.214.232:443 | helpx.adobe.com | Akamai International B.V. | NL | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
www.bing.com |
| whitelisted |
support.microsoft.com |
| whitelisted |
go.microsoft.com |
| whitelisted |
msdn.microsoft.com |
| whitelisted |
visualstudio.microsoft.com |
| whitelisted |
level23hacktools.com |
| malicious |
www.opera.com |
| whitelisted |
www.adobe.com |
| whitelisted |
helpx.adobe.com |
| whitelisted |
filezilla-project.org |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | A Network Trojan was detected | ET TROJAN Possible Sharik/Smoke Loader Microsoft Connectivity check |
— | — | A Network Trojan was detected | ET TROJAN Possible Sharik/Smoke Loader Microsoft Connectivity check |
— | — | A Network Trojan was detected | ET TROJAN Possible Sharik/Smoke Loader Microsoft Connectivity check M2 |
— | — | A Network Trojan was detected | ET TROJAN Possible Sharik/Smoke Loader Microsoft Connectivity check |
— | — | A Network Trojan was detected | ET TROJAN Sharik/Smoke CnC Beacon 9 |
— | — | A Network Trojan was detected | MALWARE [PTsecurity] Bot.Sharik HTTP Header structure |
— | — | A Network Trojan was detected | MALWARE [PTsecurity] Sharik/SmokeLoader Check-in |
— | — | A Network Trojan was detected | ET TROJAN Possible Sharik/Smoke Loader Microsoft Connectivity check |
— | — | A Network Trojan was detected | ET TROJAN Possible Sharik/Smoke Loader Microsoft Connectivity check |
— | — | A Network Trojan was detected | ET TROJAN Possible Sharik/Smoke Loader Microsoft Connectivity check |