| File name: | gasby.exe |
| Full analysis: | https://app.any.run/tasks/c57a1552-6b06-4423-b9df-9160a33f1115 |
| Verdict: | Malicious activity |
| Threats: | FormBook is a data stealer that is being distributed as a MaaS. FormBook differs from a lot of competing malware by its extreme ease of use that allows even the unexperienced threat actors to use FormBook virus. |
| Analysis date: | January 11, 2019, 11:38:40 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | 1B70A751A4DC4D451295C0E25355ED96 |
| SHA1: | ECB21EB1D28FDCB8E665E709D27A68A129A9AB57 |
| SHA256: | 3EA7FEFB5B0E4EAB0DF80A20E5AE83C5BAAAF84DFF229D4C3F0CE1032B92E774 |
| SSDEEP: | 3072:R9zvqcpi+H3v5q2KOBPJvjrTqU3jCebgCuq:f1PBvKOBNTqUmq |
MALICIOUS
Formbook was detected
- nbtstat.exe (PID: 3532)
- Firefox.exe (PID: 3452)
Changes the autorun value in the registry
- nbtstat.exe (PID: 3532)
FORMBOOK was detected
- explorer.exe (PID: 116)
Connects to CnC server
- explorer.exe (PID: 116)
Actions looks like stealing of personal data
- nbtstat.exe (PID: 3532)
Stealing of credential data
- nbtstat.exe (PID: 3532)
SUSPICIOUS
Starts CMD.EXE for commands execution
- nbtstat.exe (PID: 3532)
Creates files in the user directory
- nbtstat.exe (PID: 3532)
Loads DLL from Mozilla Firefox
- nbtstat.exe (PID: 3532)
Creates files in the program directory
- DllHost.exe (PID: 788)
Executable content was dropped or overwritten
- explorer.exe (PID: 116)
- DllHost.exe (PID: 788)
INFO
Creates files in the user directory
- Firefox.exe (PID: 3452)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | DOS Executable Generic (100) |
|---|
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2008:04:19 06:44:26+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 10 |
| CodeSize: | 166912 |
| InitializedDataSize: | - |
| UninitializedDataSize: | - |
| EntryPoint: | 0x1b640 |
| OSVersion: | 5.1 |
| ImageVersion: | - |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 19-Apr-2008 04:44:26 |
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x5245 |
| Pages in file: | 0x00E8 |
| Relocations: | 0x0000 |
| Size of header: | 0x5800 |
| Min extra paragraphs: | 0xE883 |
| Max extra paragraphs: | 0x8B09 |
| Initial SS value: | 0x83C8 |
| Initial SP value: | 0x3CC0 |
| Checksum: | 0x008B |
| Initial IP value: | 0xC103 |
| Initial CS value: | 0xC083 |
| Overlay number: | 0xFF08 |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x000000C8 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 1 |
| Time date stamp: | 19-Apr-2008 04:44:26 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Sections
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00001000 | 0x00028B6C | 0x00028C00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 7.42293 |
Total processes
38
Monitored processes
8
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 116 | C:\Windows\Explorer.EXE | C:\Windows\explorer.exe | — | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Explorer Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 788 | C:\Windows\system32\DllHost.exe /Processid:{3AD05575-8857-4850-9277-11B85BDB8E09} | C:\Windows\system32\DllHost.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: COM Surrogate Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1040 | "C:\Windows\System32\msdt.exe" | C:\Windows\System32\msdt.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Diagnostics Troubleshooting Wizard Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2180 | /c del "C:\Users\admin\AppData\Local\Temp\gasby.exe" | C:\Windows\System32\cmd.exe | — | nbtstat.exe | |||||||||||
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
| |||||||||||||||
| 2972 | "C:\Users\admin\AppData\Local\Temp\gasby.exe" | C:\Users\admin\AppData\Local\Temp\gasby.exe | — | explorer.exe | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 3348 | "C:\Program Files\Ti6f\oftplr3xvfxqbdh.exe" | C:\Program Files\Ti6f\oftplr3xvfxqbdh.exe | — | explorer.exe | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 3452 | "C:\Program Files\Mozilla Firefox\Firefox.exe" | C:\Program Files\Mozilla Firefox\Firefox.exe | nbtstat.exe | ||||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Exit code: 0 Version: 61.0.2 Modules
| |||||||||||||||
| 3532 | "C:\Windows\System32\nbtstat.exe" | C:\Windows\System32\nbtstat.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: TCP/IP NetBios Information Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
1 020
Read events
922
Write events
96
Delete events
2
Modification events
| (PID) Process: | (116) explorer.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (116) explorer.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\ApplicationDestinations |
| Operation: | write | Name: | MaxEntries |
Value: 15 | |||
| (PID) Process: | (116) explorer.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\StartPage |
| Operation: | write | Name: | StartMenu_Balloon_Time |
Value: 184C0A74A2A9D401 | |||
| (PID) Process: | (116) explorer.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E |
| Operation: | write | Name: | @C:\Windows\System32\display.dll,-4 |
Value: S&creen resolution | |||
| (PID) Process: | (116) explorer.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E |
| Operation: | write | Name: | @C:\Program Files\Common Files\System\wab32res.dll,-4602 |
Value: Contact file | |||
| (PID) Process: | (116) explorer.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E |
| Operation: | write | Name: | @C:\Program Files\Windows Sidebar\sidebar.exe,-11100 |
Value: &Gadgets | |||
| (PID) Process: | (116) explorer.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E |
| Operation: | write | Name: | @C:\Windows\system32\themecpl.dll,-10 |
Value: Pe&rsonalize | |||
| (PID) Process: | (116) explorer.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E |
| Operation: | write | Name: | @"C:\Program Files\Windows Journal\Journal.exe",-3072 |
Value: Journal Document | |||
| (PID) Process: | (116) explorer.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Discardable\PostSetup\ShellNew |
| Operation: | write | Name: | Classes |
Value: .accdb | |||
| (PID) Process: | (116) explorer.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Discardable\PostSetup\ShellNew |
| Operation: | write | Name: | ~reserved~ |
Value: 0800000000000600 | |||
Executable files
2
Suspicious files
82
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3532 | nbtstat.exe | C:\Users\admin\AppData\Roaming\8K89-1-E\8K8logrc.ini | binary | |
MD5:— | SHA256:— | |||
| 3532 | nbtstat.exe | C:\Users\admin\AppData\Roaming\8K89-1-E\8K8logim.jpeg | image | |
MD5:— | SHA256:— | |||
| 3452 | Firefox.exe | C:\Users\admin\AppData\Roaming\8K89-1-E\8K8logrf.ini | binary | |
MD5:— | SHA256:— | |||
| 788 | DllHost.exe | C:\Program Files\Ti6f\oftplr3xvfxqbdh.exe | executable | |
MD5:— | SHA256:— | |||
| 116 | explorer.exe | C:\Users\admin\AppData\Local\Temp\Ti6f\oftplr3xvfxqbdh.exe | executable | |
MD5:— | SHA256:— | |||
| 3532 | nbtstat.exe | C:\Users\admin\AppData\Roaming\8K89-1-E\8K8logri.ini | binary | |
MD5:D63A82E5D81E02E399090AF26DB0B9CB | SHA256:EAECE2EBA6310253249603033C744DD5914089B0BB26BDE6685EC9813611BAAE | |||
| 3532 | nbtstat.exe | C:\Users\admin\AppData\Roaming\8K89-1-E\8K8logrv.ini | binary | |
MD5:BA3B6BC807D4F76794C4B81B09BB9BA5 | SHA256:6EEBF968962745B2E9DE2CA969AF7C424916D4E3FE3CC0BB9B3D414ABFCE9507 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
13
TCP/UDP connections
13
DNS requests
14
Threats
27
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
116 | explorer.exe | GET | — | 93.89.231.49:80 | http://www.evotelkonsept.com/hx316/?CP=T7ZnwVdSuRV6dKDiEWLksZDdkkGI6ND25lRhqPuI43JVpnRtdaiU9bTnsvtBWym9i4XyYw==&sZE=YnJ4ANEp&sql=1 | CY | — | — | malicious |
116 | explorer.exe | GET | — | 116.255.246.124:80 | http://www.tongda6000.com/hx316/?CP=QLzPRSSCj9ETJiMmVaV5b/TileQJDqs0NJoxXYpg/TNwRaMVA1dC5ybS1qCK5iBzbJtCiQ==&sZE=YnJ4ANEp&sql=1 | CN | — | — | malicious |
116 | explorer.exe | GET | 404 | 162.213.249.180:80 | http://www.mansiobbok.info/hx316/?CP=nA3X1aDjR7PWAl/xF2RlacL0CPrePCrzn+vgmFrobhS/U10VhsrvCK4rT57gUU+iVM4z1Q==&sZE=YnJ4ANEp | US | html | 329 b | malicious |
116 | explorer.exe | POST | — | 116.255.246.124:80 | http://www.tongda6000.com/hx316/ | CN | — | — | malicious |
116 | explorer.exe | POST | — | 93.89.231.49:80 | http://www.evotelkonsept.com/hx316/ | CY | — | — | malicious |
116 | explorer.exe | POST | — | 93.89.231.49:80 | http://www.evotelkonsept.com/hx316/ | CY | — | — | malicious |
116 | explorer.exe | POST | — | 93.89.231.49:80 | http://www.evotelkonsept.com/hx316/ | CY | — | — | malicious |
116 | explorer.exe | POST | — | 116.255.246.124:80 | http://www.tongda6000.com/hx316/ | CN | — | — | malicious |
116 | explorer.exe | POST | — | 116.255.246.124:80 | http://www.tongda6000.com/hx316/ | CN | — | — | malicious |
116 | explorer.exe | POST | — | 156.234.26.147:80 | http://www.qiling0991.com/hx316/ | US | — | — | malicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
116 | explorer.exe | 93.89.231.49:80 | www.evotelkonsept.com | Fbs Bilisim Cozumleri Tic Ltd Sti. | CY | malicious |
116 | explorer.exe | 116.255.246.124:80 | www.tongda6000.com | CHINA UNICOM China169 Backbone | CN | malicious |
116 | explorer.exe | 156.234.26.147:80 | www.qiling0991.com | MULTACOM CORPORATION | US | malicious |
116 | explorer.exe | 162.213.249.180:80 | www.mansiobbok.info | Namecheap, Inc. | US | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
www.q6ad.review |
| unknown |
www.smalljobsnsw.com |
| unknown |
www.bikaku-ex.com |
| unknown |
www.healthyvancouver.life |
| unknown |
www.sarados.online |
| unknown |
www.ehliyetimyok.com |
| unknown |
www.mansiobbok.info |
| malicious |
www.evotelkonsept.com |
| malicious |
www.tongda6000.com |
| malicious |
www.geniusclock.win |
| unknown |
Threats
PID | Process | Class | Message |
|---|---|---|---|
116 | explorer.exe | A Network Trojan was detected | SC TROJAN_DOWNLOADER Suspicious HTTP-GET request with body and minimal header |
116 | explorer.exe | A Network Trojan was detected | MALWARE [PTsecurity] FormBook CnC Checkin (GET) |
116 | explorer.exe | A Network Trojan was detected | SC TROJAN_DOWNLOADER Suspicious HTTP-GET request with body and minimal header |
116 | explorer.exe | A Network Trojan was detected | MALWARE [PTsecurity] FormBook CnC Checkin (GET) |
116 | explorer.exe | A Network Trojan was detected | MALWARE [PTsecurity] TrojanSpy:FormBook CnC Checkin (POST) |
116 | explorer.exe | A Network Trojan was detected | MALWARE [PTsecurity] FormBook CnC Checkin (POST) |
116 | explorer.exe | A Network Trojan was detected | SC TROJAN_DOWNLOADER Suspicious HTTP-GET request with body and minimal header |
116 | explorer.exe | A Network Trojan was detected | MALWARE [PTsecurity] FormBook CnC Checkin (GET) |
116 | explorer.exe | A Network Trojan was detected | MALWARE [PTsecurity] TrojanSpy:FormBook CnC Checkin (POST) |
116 | explorer.exe | A Network Trojan was detected | MALWARE [PTsecurity] FormBook CnC Checkin (POST) |
10 ETPRO signatures available at the full report